FlycoTabLayout
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H07000223
如何设置选中之后的字体大小。我的需求是选中之后的字体变大，请问如何做？
module里面可以修改源码，比如： private void updateTabSelection(int position) { for (int i = 0; i < mTabCount; ++i) { View tabView = mTabsContainer.getChildAt(i); final boolean isSelect = i == position; TextView tab_title = (TextView) tabView.findViewById(R.id.tv_tab_title);
if (tab_title != null) {
tab_title.setTextColor(isSelect ? mTextSelectColor : mTextUnselectColor);
///< @hl 增加一个选中字体放大的效果
tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, isSelect ? (mTextsize + 2) : (mTextsize - 2));
if (mTextBold == TEXT_BOLD_WHEN_SELECT) {
tab_title.getPaint().setFakeBoldText(isSelect);
}
}
}
}
上面解决了问题。但是刚一进入之后选中的字体不会放大。于是我在代码中有增加了这样的代码： private void updateTabStyles() { for (int i = 0; i < mTabCount; i++) { View v = mTabsContainer.getChildAt(i); // v.setPadding((int) mTabPadding, v.getPaddingTop(), (int) mTabPadding, v.getPaddingBottom()); TextView tv_tab_title = (TextView) v.findViewById(R.id.tv_tab_title); if (tv_tab_title != null) { tv_tab_title.setTextColor(i == mCurrentTab ? mTextSelectColor : mTextUnselectColor); tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize); tv_tab_title.setPadding((int) mTabPadding, 0, (int) mTabPadding, 0); if (mTextAllCaps) { tv_tab_title.setText(tv_tab_title.getText().toString().toUpperCase()); }
if (mTextBold == TEXT_BOLD_BOTH) {
tv_tab_title.getPaint().setFakeBoldText(true);
} else if (mTextBold == TEXT_BOLD_NONE) {
tv_tab_title.getPaint().setFakeBoldText(false);
}
}
//增加选中字体放大功能 解决刚一进入字体不放大的问题
if (i == 0) {
tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize + INCREASE_TEXT_SIZE);
}
}
}
目前已经实现了。谢谢作者。谢谢你的贡献。
上面解决了问题。但是刚一进入之后选中的字体不会放大。于是我在代码中有增加了这样的代码： private void updateTabStyles() { for (int i = 0; i < mTabCount; i++) { View v = mTabsContainer.getChildAt(i); // v.setPadding((int) mTabPadding, v.getPaddingTop(), (int) mTabPadding, v.getPaddingBottom()); TextView tv_tab_title = (TextView) v.findViewById(R.id.tv_tab_title); if (tv_tab_title != null) { tv_tab_title.setTextColor(i == mCurrentTab ? mTextSelectColor : mTextUnselectColor); tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize); tv_tab_title.setPadding((int) mTabPadding, 0, (int) mTabPadding, 0); if (mTextAllCaps) { tv_tab_title.setText(tv_tab_title.getText().toString().toUpperCase()); }
if (mTextBold == TEXT_BOLD_BOTH) { tv_tab_title.getPaint().setFakeBoldText(true); } else if (mTextBold == TEXT_BOLD_NONE) { tv_tab_title.getPaint().setFakeBoldText(false); } } //增加选中字体放大功能 解决刚一进入字体不放大的问题 if (i == 0) { tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize + INCREASE_TEXT_SIZE); } } }目前已经实现了。谢谢作者。谢谢你的贡献。
你好,我是直接添加的依赖,怎么去改他的源码呢?也是要实现选中后字体变大的效果
上面解决了问题。但是刚一进入之后选中的字体不会放大。于是我在代码中有增加了这样的代码： private void updateTabStyles() { for (int i = 0; i < mTabCount; i++) { View v = mTabsContainer.getChildAt(i); // v.setPadding((int) mTabPadding, v.getPaddingTop(), (int) mTabPadding, v.getPaddingBottom()); TextView tv_tab_title = (TextView) v.findViewById(R.id.tv_tab_title); if (tv_tab_title != null) { tv_tab_title.setTextColor(i == mCurrentTab ? mTextSelectColor : mTextUnselectColor); tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize); tv_tab_title.setPadding((int) mTabPadding, 0, (int) mTabPadding, 0); if (mTextAllCaps) { tv_tab_title.setText(tv_tab_title.getText().toString().toUpperCase()); }
if (mTextBold == TEXT_BOLD_BOTH) { tv_tab_title.getPaint().setFakeBoldText(true); } else if (mTextBold == TEXT_BOLD_NONE) { tv_tab_title.getPaint().setFakeBoldText(false); } } //增加选中字体放大功能 解决刚一进入字体不放大的问题 if (i == 0) { tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize + INCREASE_TEXT_SIZE); } } }目前已经实现了。谢谢作者。谢谢你的贡献。
你好,我是直接添加的依赖,怎么去改他的源码呢?也是要实现选中后字体变大的效果
package com.flyco.tablayout;
import android.content.Context; import android.content.res.TypedArray; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Path; import android.graphics.Rect; import android.graphics.drawable.GradientDrawable; import android.os.Bundle; import android.os.Parcelable; import androidx.fragment.app.Fragment; import androidx.fragment.app.FragmentActivity; import androidx.fragment.app.FragmentManager; import androidx.fragment.app.FragmentPagerAdapter; import androidx.viewpager.widget.PagerAdapter; import androidx.viewpager.widget.ViewPager; import android.util.AttributeSet; import android.util.SparseArray; import android.util.TypedValue; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.HorizontalScrollView; import android.widget.LinearLayout; import android.widget.TextView;
import com.flyco.tablayout.listener.OnTabSelectListener; import com.flyco.tablayout.utils.UnreadMsgUtils; import com.flyco.tablayout.widget.MsgView;
import java.util.ArrayList; import java.util.Collections;
//https://github.com/H07000223/FlycoTabLayout
/** 滑动TabLayout,对于ViewPager的依赖性强 / public class SlidingTabLayout extends HorizontalScrollView implements ViewPager.OnPageChangeListener { private Context mContext; private ViewPager mViewPager; private ArrayList<String> mTitles; private LinearLayout mTabsContainer; private int mCurrentTab; private float mCurrentPositionOffset; private int mTabCount; /* 用于绘制显示器 / private Rect mIndicatorRect = new Rect(); /* 用于实现滚动居中 */ private Rect mTabRect = new Rect(); private GradientDrawable mIndicatorDrawable = new GradientDrawable();
private Paint mRectPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
private Paint mDividerPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
private Paint mTrianglePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
private Path mTrianglePath = new Path();
private static final int STYLE_NORMAL = 0;
private static final int STYLE_TRIANGLE = 1;
private static final int STYLE_BLOCK = 2;
private int mIndicatorStyle = STYLE_NORMAL;
private float mTabPadding;
private boolean mTabSpaceEqual;
private float mTabWidth;
/** indicator */
private int mIndicatorColor;
private float mIndicatorHeight;
private float mIndicatorWidth;
private float mIndicatorCornerRadius;
private float mIndicatorMarginLeft;
private float mIndicatorMarginTop;
private float mIndicatorMarginRight;
private float mIndicatorMarginBottom;
private int mIndicatorGravity;
private boolean mIndicatorWidthEqualTitle;
/** underline */
private int mUnderlineColor;
private float mUnderlineHeight;
private int mUnderlineGravity;
/** divider */
private int mDividerColor;
private float mDividerWidth;
private float mDividerPadding;
/** title */
private static final int TEXT_BOLD_NONE = 0;
private static final int TEXT_BOLD_WHEN_SELECT = 1;
private static final int TEXT_BOLD_BOTH = 2;
private float mTextsize;
private int mTextSelectColor;
private int mTextUnselectColor;
private int mTextBold;
private boolean mTextAllCaps;
private int mLastScrollX;
private int mHeight;
private boolean mSnapOnTabClick;
private final int INCREASE_TEXT_SIZE = 3;//字体放大的数量(axh添加)
public SlidingTabLayout(Context context) {
this(context, null, 0);
}
public SlidingTabLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public SlidingTabLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
setFillViewport(true);//设置滚动视图是否可以伸缩其内容以填充视口
setWillNotDraw(false);//重写onDraw方法,需要调用这个方法来清除flag
setClipChildren(false);
setClipToPadding(false);
this.mContext = context;
mTabsContainer = new LinearLayout(context);
addView(mTabsContainer);
obtainAttributes(context, attrs);
//get layout_height
String height = attrs.getAttributeValue("http://schemas.android.com/apk/res/android", "layout_height");
if (height.equals(ViewGroup.LayoutParams.MATCH_PARENT + "")) {
} else if (height.equals(ViewGroup.LayoutParams.WRAP_CONTENT + "")) {
} else {
int[] systemAttrs = {android.R.attr.layout_height};
TypedArray a = context.obtainStyledAttributes(attrs, systemAttrs);
mHeight = a.getDimensionPixelSize(0, ViewGroup.LayoutParams.WRAP_CONTENT);
a.recycle();
}
}
private void obtainAttributes(Context context, AttributeSet attrs) {
TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.SlidingTabLayout);
mIndicatorStyle = ta.getInt(R.styleable.SlidingTabLayout_tl_indicator_style, STYLE_NORMAL);
mIndicatorColor = ta.getColor(R.styleable.SlidingTabLayout_tl_indicator_color, Color.parseColor(mIndicatorStyle == STYLE_BLOCK ? "#4B6A87" : "#ffffff"));
mIndicatorHeight = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_height,
dp2px(mIndicatorStyle == STYLE_TRIANGLE ? 4 : (mIndicatorStyle == STYLE_BLOCK ? -1 : 2)));
mIndicatorWidth = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_width, dp2px(mIndicatorStyle == STYLE_TRIANGLE ? 10 : -1));
mIndicatorCornerRadius = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_corner_radius, dp2px(mIndicatorStyle == STYLE_BLOCK ? -1 : 0));
mIndicatorMarginLeft = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_margin_left, dp2px(0));
mIndicatorMarginTop = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_margin_top, dp2px(mIndicatorStyle == STYLE_BLOCK ? 7 : 0));
mIndicatorMarginRight = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_margin_right, dp2px(0));
mIndicatorMarginBottom = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_margin_bottom, dp2px(mIndicatorStyle == STYLE_BLOCK ? 7 : 0));
mIndicatorGravity = ta.getInt(R.styleable.SlidingTabLayout_tl_indicator_gravity, Gravity.BOTTOM);
mIndicatorWidthEqualTitle = ta.getBoolean(R.styleable.SlidingTabLayout_tl_indicator_width_equal_title, false);
mUnderlineColor = ta.getColor(R.styleable.SlidingTabLayout_tl_underline_color, Color.parseColor("#ffffff"));
mUnderlineHeight = ta.getDimension(R.styleable.SlidingTabLayout_tl_underline_height, dp2px(0));
mUnderlineGravity = ta.getInt(R.styleable.SlidingTabLayout_tl_underline_gravity, Gravity.BOTTOM);
mDividerColor = ta.getColor(R.styleable.SlidingTabLayout_tl_divider_color, Color.parseColor("#ffffff"));
mDividerWidth = ta.getDimension(R.styleable.SlidingTabLayout_tl_divider_width, dp2px(0));
mDividerPadding = ta.getDimension(R.styleable.SlidingTabLayout_tl_divider_padding, dp2px(12));
mTextsize = ta.getDimension(R.styleable.SlidingTabLayout_tl_textsize, sp2px(14));
mTextSelectColor = ta.getColor(R.styleable.SlidingTabLayout_tl_textSelectColor, Color.parseColor("#ffffff"));
mTextUnselectColor = ta.getColor(R.styleable.SlidingTabLayout_tl_textUnselectColor, Color.parseColor("#AAffffff"));
mTextBold = ta.getInt(R.styleable.SlidingTabLayout_tl_textBold, TEXT_BOLD_NONE);
mTextAllCaps = ta.getBoolean(R.styleable.SlidingTabLayout_tl_textAllCaps, false);
mTabSpaceEqual = ta.getBoolean(R.styleable.SlidingTabLayout_tl_tab_space_equal, false);
mTabWidth = ta.getDimension(R.styleable.SlidingTabLayout_tl_tab_width, dp2px(-1));
mTabPadding = ta.getDimension(R.styleable.SlidingTabLayout_tl_tab_padding, mTabSpaceEqual || mTabWidth > 0 ? dp2px(0) : dp2px(20));
ta.recycle();
}
/** 关联ViewPager */
public void setViewPager(ViewPager vp) {
if (vp == null || vp.getAdapter() == null) {
throw new IllegalStateException("ViewPager or ViewPager adapter can not be NULL !");
}
this.mViewPager = vp;
this.mViewPager.removeOnPageChangeListener(this);
this.mViewPager.addOnPageChangeListener(this);
notifyDataSetChanged();
}
/** 关联ViewPager,用于不想在ViewPager适配器中设置titles数据的情况 */
public void setViewPager(ViewPager vp, String[] titles) {
if (vp == null || vp.getAdapter() == null) {
throw new IllegalStateException("ViewPager or ViewPager adapter can not be NULL !");
}
if (titles == null || titles.length == 0) {
throw new IllegalStateException("Titles can not be EMPTY !");
}
if (titles.length != vp.getAdapter().getCount()) {
throw new IllegalStateException("Titles length must be the same as the page count !");
}
this.mViewPager = vp;
mTitles = new ArrayList<>();
Collections.addAll(mTitles, titles);
this.mViewPager.removeOnPageChangeListener(this);
this.mViewPager.addOnPageChangeListener(this);
notifyDataSetChanged();
}
/** 关联ViewPager,用于连适配器都不想自己实例化的情况 */
public void setViewPager(ViewPager vp, String[] titles, FragmentActivity fa, ArrayList<Fragment> fragments) {
if (vp == null) {
throw new IllegalStateException("ViewPager can not be NULL !");
}
if (titles == null || titles.length == 0) {
throw new IllegalStateException("Titles can not be EMPTY !");
}
this.mViewPager = vp;
this.mViewPager.setAdapter(new InnerPagerAdapter(fa.getSupportFragmentManager(), fragments, titles));
this.mViewPager.removeOnPageChangeListener(this);
this.mViewPager.addOnPageChangeListener(this);
notifyDataSetChanged();
}
/** 更新数据 */
public void notifyDataSetChanged() {
mTabsContainer.removeAllViews();
this.mTabCount = mTitles == null ? mViewPager.getAdapter().getCount() : mTitles.size();
View tabView;
for (int i = 0; i < mTabCount; i++) {
tabView = View.inflate(mContext, R.layout.layout_tab, null);
CharSequence pageTitle = mTitles == null ? mViewPager.getAdapter().getPageTitle(i) : mTitles.get(i);
addTab(i, pageTitle.toString(), tabView);
}
updateTabStyles();
}
public void addNewTab(String title) {
View tabView = View.inflate(mContext, R.layout.layout_tab, null);
if (mTitles != null) {
mTitles.add(title);
}
CharSequence pageTitle = mTitles == null ? mViewPager.getAdapter().getPageTitle(mTabCount) : mTitles.get(mTabCount);
addTab(mTabCount, pageTitle.toString(), tabView);
this.mTabCount = mTitles == null ? mViewPager.getAdapter().getCount() : mTitles.size();
updateTabStyles();
}
/** 创建并添加tab */
private void addTab(final int position, String title, View tabView) {
TextView tv_tab_title = (TextView) tabView.findViewById(R.id.tv_tab_title);
if (tv_tab_title != null) {
if (title != null) tv_tab_title.setText(title);
}
tabView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int position = mTabsContainer.indexOfChild(v);
if (position != -1) {
if (mViewPager.getCurrentItem() != position) {
if (mSnapOnTabClick) {
mViewPager.setCurrentItem(position, false);
} else {
mViewPager.setCurrentItem(position);
}
if (mListener != null) {
mListener.onTabSelect(position);
}
} else {
if (mListener != null) {
mListener.onTabReselect(position);
}
}
}
}
});
/** 每一个Tab的布局参数 */
LinearLayout.LayoutParams lp_tab = mTabSpaceEqual ?
new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT, 1.0f) :
new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
if (mTabWidth > 0) {
lp_tab = new LinearLayout.LayoutParams((int) mTabWidth, LayoutParams.MATCH_PARENT);
}
mTabsContainer.addView(tabView, position, lp_tab);
}
private void updateTabStyles() {
for (int i = 0; i < mTabCount; i++) {
View v = mTabsContainer.getChildAt(i);
// v.setPadding((int) mTabPadding, v.getPaddingTop(), (int) mTabPadding, v.getPaddingBottom()); TextView tv_tab_title = (TextView) v.findViewById(R.id.tv_tab_title); if (tv_tab_title != null) { tv_tab_title.setTextColor(i == mCurrentTab ? mTextSelectColor : mTextUnselectColor); tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize); tv_tab_title.setPadding((int) mTabPadding, 0, (int) mTabPadding, 0); if (mTextAllCaps) { tv_tab_title.setText(tv_tab_title.getText().toString().toUpperCase()); }
if (mTextBold == TEXT_BOLD_BOTH) {
tv_tab_title.getPaint().setFakeBoldText(true);
} else if (mTextBold == TEXT_BOLD_NONE) {
tv_tab_title.getPaint().setFakeBoldText(false);
}
}
//增加选中字体放大功能 解决刚一进入字体不放大的问题(axh添加)
if (i == 0) {
tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize + INCREASE_TEXT_SIZE);
}
}
}
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
/**
* position:当前View的位置
* mCurrentPositionOffset:当前View的偏移量比例.[0,1)
*/
this.mCurrentTab = position;
this.mCurrentPositionOffset = positionOffset;
scrollToCurrentTab();
invalidate();
}
@Override
public void onPageSelected(int position) {
updateTabSelection(position);
}
@Override
public void onPageScrollStateChanged(int state) {
}
/** HorizontalScrollView滚到当前tab,并且居中显示 */
private void scrollToCurrentTab() {
if (mTabCount <= 0) {
return;
}
int offset = (int) (mCurrentPositionOffset * mTabsContainer.getChildAt(mCurrentTab).getWidth());
/**当前Tab的left+当前Tab的Width乘以positionOffset*/
int newScrollX = mTabsContainer.getChildAt(mCurrentTab).getLeft() + offset;
if (mCurrentTab > 0 || offset > 0) {
/**HorizontalScrollView移动到当前tab,并居中*/
newScrollX -= getWidth() / 2 - getPaddingLeft();
calcIndicatorRect();
newScrollX += ((mTabRect.right - mTabRect.left) / 2);
}
if (newScrollX != mLastScrollX) {
mLastScrollX = newScrollX;
/** scrollTo（int x,int y）:x,y代表的不是坐标点,而是偏移量
* x:表示离起始位置的x水平方向的偏移量
* y:表示离起始位置的y垂直方向的偏移量
*/
scrollTo(newScrollX, 0);
}
}
private void updateTabSelection(int position) {
for (int i = 0; i < mTabCount; ++i) {
View tabView = mTabsContainer.getChildAt(i);
final boolean isSelect = i == position;
TextView tab_title = (TextView) tabView.findViewById(R.id.tv_tab_title);
if (tab_title != null) {
tab_title.setTextColor(isSelect ? mTextSelectColor : mTextUnselectColor);
/// 增加一个选中字体放大的效果 (axh添加)
tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, isSelect ? (mTextsize + INCREASE_TEXT_SIZE) : (mTextsize));
if (mTextBold == TEXT_BOLD_WHEN_SELECT) {
tab_title.getPaint().setFakeBoldText(isSelect);
}
}
}
}
private float margin;
private void calcIndicatorRect() {
View currentTabView = mTabsContainer.getChildAt(this.mCurrentTab);
float left = currentTabView.getLeft();
float right = currentTabView.getRight();
//for mIndicatorWidthEqualTitle
if (mIndicatorStyle == STYLE_NORMAL && mIndicatorWidthEqualTitle) {
TextView tab_title = (TextView) currentTabView.findViewById(R.id.tv_tab_title);
mTextPaint.setTextSize(mTextsize);
float textWidth = mTextPaint.measureText(tab_title.getText().toString());
margin = (right - left - textWidth) / 2;
}
if (this.mCurrentTab < mTabCount - 1) {
View nextTabView = mTabsContainer.getChildAt(this.mCurrentTab + 1);
float nextTabLeft = nextTabView.getLeft();
float nextTabRight = nextTabView.getRight();
left = left + mCurrentPositionOffset * (nextTabLeft - left);
right = right + mCurrentPositionOffset * (nextTabRight - right);
//for mIndicatorWidthEqualTitle
if (mIndicatorStyle == STYLE_NORMAL && mIndicatorWidthEqualTitle) {
TextView next_tab_title = (TextView) nextTabView.findViewById(R.id.tv_tab_title);
mTextPaint.setTextSize(mTextsize);
float nextTextWidth = mTextPaint.measureText(next_tab_title.getText().toString());
float nextMargin = (nextTabRight - nextTabLeft - nextTextWidth) / 2;
margin = margin + mCurrentPositionOffset * (nextMargin - margin);
}
}
mIndicatorRect.left = (int) left;
mIndicatorRect.right = (int) right;
//for mIndicatorWidthEqualTitle
if (mIndicatorStyle == STYLE_NORMAL && mIndicatorWidthEqualTitle) {
mIndicatorRect.left = (int) (left + margin - 1);
mIndicatorRect.right = (int) (right - margin - 1);
}
mTabRect.left = (int) left;
mTabRect.right = (int) right;
if (mIndicatorWidth < 0) { //indicatorWidth小于0时,原jpardogo's PagerSlidingTabStrip
} else {//indicatorWidth大于0时,圆角矩形以及三角形
float indicatorLeft = currentTabView.getLeft() + (currentTabView.getWidth() - mIndicatorWidth) / 2;
if (this.mCurrentTab < mTabCount - 1) {
View nextTab = mTabsContainer.getChildAt(this.mCurrentTab + 1);
indicatorLeft = indicatorLeft + mCurrentPositionOffset * (currentTabView.getWidth() / 2 + nextTab.getWidth() / 2);
}
mIndicatorRect.left = (int) indicatorLeft;
mIndicatorRect.right = (int) (mIndicatorRect.left + mIndicatorWidth);
}
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (isInEditMode() || mTabCount <= 0) {
return;
}
int height = getHeight();
int paddingLeft = getPaddingLeft();
// draw divider
if (mDividerWidth > 0) {
mDividerPaint.setStrokeWidth(mDividerWidth);
mDividerPaint.setColor(mDividerColor);
for (int i = 0; i < mTabCount - 1; i++) {
View tab = mTabsContainer.getChildAt(i);
canvas.drawLine(paddingLeft + tab.getRight(), mDividerPadding, paddingLeft + tab.getRight(), height - mDividerPadding, mDividerPaint);
}
}
// draw underline
if (mUnderlineHeight > 0) {
mRectPaint.setColor(mUnderlineColor);
if (mUnderlineGravity == Gravity.BOTTOM) {
canvas.drawRect(paddingLeft, height - mUnderlineHeight, mTabsContainer.getWidth() + paddingLeft, height, mRectPaint);
} else {
canvas.drawRect(paddingLeft, 0, mTabsContainer.getWidth() + paddingLeft, mUnderlineHeight, mRectPaint);
}
}
//draw indicator line
calcIndicatorRect();
if (mIndicatorStyle == STYLE_TRIANGLE) {
if (mIndicatorHeight > 0) {
mTrianglePaint.setColor(mIndicatorColor);
mTrianglePath.reset();
mTrianglePath.moveTo(paddingLeft + mIndicatorRect.left, height);
mTrianglePath.lineTo(paddingLeft + mIndicatorRect.left / 2 + mIndicatorRect.right / 2, height - mIndicatorHeight);
mTrianglePath.lineTo(paddingLeft + mIndicatorRect.right, height);
mTrianglePath.close();
canvas.drawPath(mTrianglePath, mTrianglePaint);
}
} else if (mIndicatorStyle == STYLE_BLOCK) {
if (mIndicatorHeight < 0) {
mIndicatorHeight = height - mIndicatorMarginTop - mIndicatorMarginBottom;
} else {
}
if (mIndicatorHeight > 0) {
if (mIndicatorCornerRadius < 0 || mIndicatorCornerRadius > mIndicatorHeight / 2) {
mIndicatorCornerRadius = mIndicatorHeight / 2;
}
mIndicatorDrawable.setColor(mIndicatorColor);
mIndicatorDrawable.setBounds(paddingLeft + (int) mIndicatorMarginLeft + mIndicatorRect.left,
(int) mIndicatorMarginTop, (int) (paddingLeft + mIndicatorRect.right - mIndicatorMarginRight),
(int) (mIndicatorMarginTop + mIndicatorHeight));
mIndicatorDrawable.setCornerRadius(mIndicatorCornerRadius);
mIndicatorDrawable.draw(canvas);
}
} else {
/* mRectPaint.setColor(mIndicatorColor);
calcIndicatorRect();
canvas.drawRect(getPaddingLeft() + mIndicatorRect.left, getHeight() - mIndicatorHeight,
mIndicatorRect.right + getPaddingLeft(), getHeight(), mRectPaint);*/
if (mIndicatorHeight > 0) {
mIndicatorDrawable.setColor(mIndicatorColor);
if (mIndicatorGravity == Gravity.BOTTOM) {
mIndicatorDrawable.setBounds(paddingLeft + (int) mIndicatorMarginLeft + mIndicatorRect.left,
height - (int) mIndicatorHeight - (int) mIndicatorMarginBottom,
paddingLeft + mIndicatorRect.right - (int) mIndicatorMarginRight,
height - (int) mIndicatorMarginBottom);
} else {
mIndicatorDrawable.setBounds(paddingLeft + (int) mIndicatorMarginLeft + mIndicatorRect.left,
(int) mIndicatorMarginTop,
paddingLeft + mIndicatorRect.right - (int) mIndicatorMarginRight,
(int) mIndicatorHeight + (int) mIndicatorMarginTop);
}
mIndicatorDrawable.setCornerRadius(mIndicatorCornerRadius);
mIndicatorDrawable.draw(canvas);
}
}
}
//setter and getter
public void setCurrentTab(int currentTab) {
this.mCurrentTab = currentTab;
mViewPager.setCurrentItem(currentTab);
}
public void setCurrentTab(int currentTab, boolean smoothScroll) {
this.mCurrentTab = currentTab;
mViewPager.setCurrentItem(currentTab, smoothScroll);
}
public void setIndicatorStyle(int indicatorStyle) {
this.mIndicatorStyle = indicatorStyle;
invalidate();
}
public void setTabPadding(float tabPadding) {
this.mTabPadding = dp2px(tabPadding);
updateTabStyles();
}
public void setTabSpaceEqual(boolean tabSpaceEqual) {
this.mTabSpaceEqual = tabSpaceEqual;
updateTabStyles();
}
public void setTabWidth(float tabWidth) {
this.mTabWidth = dp2px(tabWidth);
updateTabStyles();
}
public void setIndicatorColor(int indicatorColor) {
this.mIndicatorColor = indicatorColor;
invalidate();
}
public void setIndicatorHeight(float indicatorHeight) {
this.mIndicatorHeight = dp2px(indicatorHeight);
invalidate();
}
public void setIndicatorWidth(float indicatorWidth) {
this.mIndicatorWidth = dp2px(indicatorWidth);
invalidate();
}
public void setIndicatorCornerRadius(float indicatorCornerRadius) {
this.mIndicatorCornerRadius = dp2px(indicatorCornerRadius);
invalidate();
}
public void setIndicatorGravity(int indicatorGravity) {
this.mIndicatorGravity = indicatorGravity;
invalidate();
}
public void setIndicatorMargin(float indicatorMarginLeft, float indicatorMarginTop,
float indicatorMarginRight, float indicatorMarginBottom) {
this.mIndicatorMarginLeft = dp2px(indicatorMarginLeft);
this.mIndicatorMarginTop = dp2px(indicatorMarginTop);
this.mIndicatorMarginRight = dp2px(indicatorMarginRight);
this.mIndicatorMarginBottom = dp2px(indicatorMarginBottom);
invalidate();
}
public void setIndicatorWidthEqualTitle(boolean indicatorWidthEqualTitle) {
this.mIndicatorWidthEqualTitle = indicatorWidthEqualTitle;
invalidate();
}
public void setUnderlineColor(int underlineColor) {
this.mUnderlineColor = underlineColor;
invalidate();
}
public void setUnderlineHeight(float underlineHeight) {
this.mUnderlineHeight = dp2px(underlineHeight);
invalidate();
}
public void setUnderlineGravity(int underlineGravity) {
this.mUnderlineGravity = underlineGravity;
invalidate();
}
public void setDividerColor(int dividerColor) {
this.mDividerColor = dividerColor;
invalidate();
}
public void setDividerWidth(float dividerWidth) {
this.mDividerWidth = dp2px(dividerWidth);
invalidate();
}
public void setDividerPadding(float dividerPadding) {
this.mDividerPadding = dp2px(dividerPadding);
invalidate();
}
public void setTextsize(float textsize) {
this.mTextsize = sp2px(textsize);
updateTabStyles();
}
public void setTextSelectColor(int textSelectColor) {
this.mTextSelectColor = textSelectColor;
updateTabStyles();
}
public void setTextUnselectColor(int textUnselectColor) {
this.mTextUnselectColor = textUnselectColor;
updateTabStyles();
}
public void setTextBold(int textBold) {
this.mTextBold = textBold;
updateTabStyles();
}
public void setTextAllCaps(boolean textAllCaps) {
this.mTextAllCaps = textAllCaps;
updateTabStyles();
}
public void setSnapOnTabClick(boolean snapOnTabClick) {
mSnapOnTabClick = snapOnTabClick;
}
public int getTabCount() {
return mTabCount;
}
public int getCurrentTab() {
return mCurrentTab;
}
public int getIndicatorStyle() {
return mIndicatorStyle;
}
public float getTabPadding() {
return mTabPadding;
}
public boolean isTabSpaceEqual() {
return mTabSpaceEqual;
}
public float getTabWidth() {
return mTabWidth;
}
public int getIndicatorColor() {
return mIndicatorColor;
}
public float getIndicatorHeight() {
return mIndicatorHeight;
}
public float getIndicatorWidth() {
return mIndicatorWidth;
}
public float getIndicatorCornerRadius() {
return mIndicatorCornerRadius;
}
public float getIndicatorMarginLeft() {
return mIndicatorMarginLeft;
}
public float getIndicatorMarginTop() {
return mIndicatorMarginTop;
}
public float getIndicatorMarginRight() {
return mIndicatorMarginRight;
}
public float getIndicatorMarginBottom() {
return mIndicatorMarginBottom;
}
public int getUnderlineColor() {
return mUnderlineColor;
}
public float getUnderlineHeight() {
return mUnderlineHeight;
}
public int getDividerColor() {
return mDividerColor;
}
public float getDividerWidth() {
return mDividerWidth;
}
public float getDividerPadding() {
return mDividerPadding;
}
public float getTextsize() {
return mTextsize;
}
public int getTextSelectColor() {
return mTextSelectColor;
}
public int getTextUnselectColor() {
return mTextUnselectColor;
}
public int getTextBold() {
return mTextBold;
}
public boolean isTextAllCaps() {
return mTextAllCaps;
}
public TextView getTitleView(int tab) {
View tabView = mTabsContainer.getChildAt(tab);
TextView tv_tab_title = (TextView) tabView.findViewById(R.id.tv_tab_title);
return tv_tab_title;
}
//setter and getter
// show MsgTipView
private Paint mTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
private SparseArray<Boolean> mInitSetMap = new SparseArray<>();
/**
* 显示未读消息
*
* @param position 显示tab位置
* @param num num小于等于0显示红点,num大于0显示数字
*/
public void showMsg(int position, int num) {
if (position >= mTabCount) {
position = mTabCount - 1;
}
View tabView = mTabsContainer.getChildAt(position);
MsgView tipView = (MsgView) tabView.findViewById(R.id.rtv_msg_tip);
if (tipView != null) {
UnreadMsgUtils.show(tipView, num);
if (mInitSetMap.get(position) != null && mInitSetMap.get(position)) {
return;
}
setMsgMargin(position, 4, 2);
mInitSetMap.put(position, true);
}
}
/**
* 显示未读红点
*
* @param position 显示tab位置
*/
public void showDot(int position) {
if (position >= mTabCount) {
position = mTabCount - 1;
}
showMsg(position, 0);
}
/** 隐藏未读消息 */
public void hideMsg(int position) {
if (position >= mTabCount) {
position = mTabCount - 1;
}
View tabView = mTabsContainer.getChildAt(position);
MsgView tipView = (MsgView) tabView.findViewById(R.id.rtv_msg_tip);
if (tipView != null) {
tipView.setVisibility(View.GONE);
}
}
/** 设置未读消息偏移,原点为文字的右上角.当控件高度固定,消息提示位置易控制,显示效果佳 */
public void setMsgMargin(int position, float leftPadding, float bottomPadding) {
if (position >= mTabCount) {
position = mTabCount - 1;
}
View tabView = mTabsContainer.getChildAt(position);
MsgView tipView = (MsgView) tabView.findViewById(R.id.rtv_msg_tip);
if (tipView != null) {
TextView tv_tab_title = (TextView) tabView.findViewById(R.id.tv_tab_title);
mTextPaint.setTextSize(mTextsize);
float textWidth = mTextPaint.measureText(tv_tab_title.getText().toString());
float textHeight = mTextPaint.descent() - mTextPaint.ascent();
MarginLayoutParams lp = (MarginLayoutParams) tipView.getLayoutParams();
lp.leftMargin = mTabWidth >= 0 ? (int) (mTabWidth / 2 + textWidth / 2 + dp2px(leftPadding)) : (int) (mTabPadding + textWidth + dp2px(leftPadding));
lp.topMargin = mHeight > 0 ? (int) (mHeight - textHeight) / 2 - dp2px(bottomPadding) : 0;
tipView.setLayoutParams(lp);
}
}
/** 当前类只提供了少许设置未读消息属性的方法,可以通过该方法获取MsgView对象从而各种设置 */
public MsgView getMsgView(int position) {
if (position >= mTabCount) {
position = mTabCount - 1;
}
View tabView = mTabsContainer.getChildAt(position);
MsgView tipView = (MsgView) tabView.findViewById(R.id.rtv_msg_tip);
return tipView;
}
private OnTabSelectListener mListener;
public void setOnTabSelectListener(OnTabSelectListener listener) {
this.mListener = listener;
}
class InnerPagerAdapter extends FragmentPagerAdapter {
private ArrayList<Fragment> fragments = new ArrayList<>();
private String[] titles;
public InnerPagerAdapter(FragmentManager fm, ArrayList<Fragment> fragments, String[] titles) {
super(fm);
this.fragments = fragments;
this.titles = titles;
}
@Override
public int getCount() {
return fragments.size();
}
@Override
public CharSequence getPageTitle(int position) {
return titles[position];
}
@Override
public Fragment getItem(int position) {
return fragments.get(position);
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
// 覆写destroyItem并且空实现,这样每个Fragment中的视图就不会被销毁
// super.destroyItem(container, position, object);
}
@Override
public int getItemPosition(Object object) {
return PagerAdapter.POSITION_NONE;
}
}
@Override
protected Parcelable onSaveInstanceState() {
Bundle bundle = new Bundle();
bundle.putParcelable("instanceState", super.onSaveInstanceState());
bundle.putInt("mCurrentTab", mCurrentTab);
return bundle;
}
@Override
protected void onRestoreInstanceState(Parcelable state) {
if (state instanceof Bundle) {
Bundle bundle = (Bundle) state;
mCurrentTab = bundle.getInt("mCurrentTab");
state = bundle.getParcelable("instanceState");
if (mCurrentTab != 0 && mTabsContainer.getChildCount() > 0) {
updateTabSelection(mCurrentTab);
scrollToCurrentTab();
}
}
super.onRestoreInstanceState(state);
}
protected int dp2px(float dp) {
final float scale = mContext.getResources().getDisplayMetrics().density;
return (int) (dp * scale + 0.5f);
}
protected int sp2px(float sp) {
final float scale = this.mContext.getResources().getDisplayMetrics().scaledDensity;
return (int) (sp * scale + 0.5f);
}
}
这是我修改后的。你可以参考
上面解决了问题。但是刚一进入之后选中的字体不会放大。于是我在代码中有增加了这样的代码： private void updateTabStyles() { for (int i = 0; i < mTabCount; i++) { View v = mTabsContainer.getChildAt(i); // v.setPadding((int) mTabPadding, v.getPaddingTop(), (int) mTabPadding, v.getPaddingBottom()); TextView tv_tab_title = (TextView) v.findViewById(R.id.tv_tab_title); if (tv_tab_title != null) { tv_tab_title.setTextColor(i == mCurrentTab ? mTextSelectColor : mTextUnselectColor); tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize); tv_tab_title.setPadding((int) mTabPadding, 0, (int) mTabPadding, 0); if (mTextAllCaps) { tv_tab_title.setText(tv_tab_title.getText().toString().toUpperCase()); }
if (mTextBold == TEXT_BOLD_BOTH) { tv_tab_title.getPaint().setFakeBoldText(true); } else if (mTextBold == TEXT_BOLD_NONE) { tv_tab_title.getPaint().setFakeBoldText(false); } } //增加选中字体放大功能 解决刚一进入字体不放大的问题 if (i == 0) { tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize + INCREASE_TEXT_SIZE); } } }目前已经实现了。谢谢作者。谢谢你的贡献。
你好,我是直接添加的依赖,怎么去改他的源码呢?也是要实现选中后字体变大的效果
package com.flyco.tablayout;
import android.content.Context; import android.content.res.TypedArray; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Path; import android.graphics.Rect; import android.graphics.drawable.GradientDrawable; import android.os.Bundle; import android.os.Parcelable; import androidx.fragment.app.Fragment; import androidx.fragment.app.FragmentActivity; import androidx.fragment.app.FragmentManager; import androidx.fragment.app.FragmentPagerAdapter; import androidx.viewpager.widget.PagerAdapter; import androidx.viewpager.widget.ViewPager; import android.util.AttributeSet; import android.util.SparseArray; import android.util.TypedValue; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.HorizontalScrollView; import android.widget.LinearLayout; import android.widget.TextView;
import com.flyco.tablayout.listener.OnTabSelectListener; import com.flyco.tablayout.utils.UnreadMsgUtils; import com.flyco.tablayout.widget.MsgView;
import java.util.ArrayList; import java.util.Collections;
//https://github.com/H07000223/FlycoTabLayout
/** 滑动TabLayout,对于ViewPager的依赖性强 / public class SlidingTabLayout extends HorizontalScrollView implements ViewPager.OnPageChangeListener { private Context mContext; private ViewPager mViewPager; private ArrayList mTitles; private LinearLayout mTabsContainer; private int mCurrentTab; private float mCurrentPositionOffset; private int mTabCount; /* 用于绘制显示器 / private Rect mIndicatorRect = new Rect(); /* 用于实现滚动居中 */ private Rect mTabRect = new Rect(); private GradientDrawable mIndicatorDrawable = new GradientDrawable();
private Paint mRectPaint = new Paint(Paint.ANTI_ALIAS_FLAG); private Paint mDividerPaint = new Paint(Paint.ANTI_ALIAS_FLAG); private Paint mTrianglePaint = new Paint(Paint.ANTI_ALIAS_FLAG); private Path mTrianglePath = new Path(); private static final int STYLE_NORMAL = 0; private static final int STYLE_TRIANGLE = 1; private static final int STYLE_BLOCK = 2; private int mIndicatorStyle = STYLE_NORMAL; private float mTabPadding; private boolean mTabSpaceEqual; private float mTabWidth; /** indicator */ private int mIndicatorColor; private float mIndicatorHeight; private float mIndicatorWidth; private float mIndicatorCornerRadius; private float mIndicatorMarginLeft; private float mIndicatorMarginTop; private float mIndicatorMarginRight; private float mIndicatorMarginBottom; private int mIndicatorGravity; private boolean mIndicatorWidthEqualTitle; /** underline */ private int mUnderlineColor; private float mUnderlineHeight; private int mUnderlineGravity; /** divider */ private int mDividerColor; private float mDividerWidth; private float mDividerPadding; /** title */ private static final int TEXT_BOLD_NONE = 0; private static final int TEXT_BOLD_WHEN_SELECT = 1; private static final int TEXT_BOLD_BOTH = 2; private float mTextsize; private int mTextSelectColor; private int mTextUnselectColor; private int mTextBold; private boolean mTextAllCaps; private int mLastScrollX; private int mHeight; private boolean mSnapOnTabClick; private final int INCREASE_TEXT_SIZE = 3;//字体放大的数量(axh添加) public SlidingTabLayout(Context context) { this(context, null, 0); } public SlidingTabLayout(Context context, AttributeSet attrs) { this(context, attrs, 0); } public SlidingTabLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); setFillViewport(true);//设置滚动视图是否可以伸缩其内容以填充视口 setWillNotDraw(false);//重写onDraw方法,需要调用这个方法来清除flag setClipChildren(false); setClipToPadding(false); this.mContext = context; mTabsContainer = new LinearLayout(context); addView(mTabsContainer); obtainAttributes(context, attrs); //get layout_height String height = attrs.getAttributeValue("http://schemas.android.com/apk/res/android", "layout_height"); if (height.equals(ViewGroup.LayoutParams.MATCH_PARENT + "")) { } else if (height.equals(ViewGroup.LayoutParams.WRAP_CONTENT + "")) { } else { int[] systemAttrs = {android.R.attr.layout_height}; TypedArray a = context.obtainStyledAttributes(attrs, systemAttrs); mHeight = a.getDimensionPixelSize(0, ViewGroup.LayoutParams.WRAP_CONTENT); a.recycle(); } } private void obtainAttributes(Context context, AttributeSet attrs) { TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.SlidingTabLayout); mIndicatorStyle = ta.getInt(R.styleable.SlidingTabLayout_tl_indicator_style, STYLE_NORMAL); mIndicatorColor = ta.getColor(R.styleable.SlidingTabLayout_tl_indicator_color, Color.parseColor(mIndicatorStyle == STYLE_BLOCK ? "#4B6A87" : "#ffffff")); mIndicatorHeight = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_height, dp2px(mIndicatorStyle == STYLE_TRIANGLE ? 4 : (mIndicatorStyle == STYLE_BLOCK ? -1 : 2))); mIndicatorWidth = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_width, dp2px(mIndicatorStyle == STYLE_TRIANGLE ? 10 : -1)); mIndicatorCornerRadius = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_corner_radius, dp2px(mIndicatorStyle == STYLE_BLOCK ? -1 : 0)); mIndicatorMarginLeft = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_margin_left, dp2px(0)); mIndicatorMarginTop = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_margin_top, dp2px(mIndicatorStyle == STYLE_BLOCK ? 7 : 0)); mIndicatorMarginRight = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_margin_right, dp2px(0)); mIndicatorMarginBottom = ta.getDimension(R.styleable.SlidingTabLayout_tl_indicator_margin_bottom, dp2px(mIndicatorStyle == STYLE_BLOCK ? 7 : 0)); mIndicatorGravity = ta.getInt(R.styleable.SlidingTabLayout_tl_indicator_gravity, Gravity.BOTTOM); mIndicatorWidthEqualTitle = ta.getBoolean(R.styleable.SlidingTabLayout_tl_indicator_width_equal_title, false); mUnderlineColor = ta.getColor(R.styleable.SlidingTabLayout_tl_underline_color, Color.parseColor("#ffffff")); mUnderlineHeight = ta.getDimension(R.styleable.SlidingTabLayout_tl_underline_height, dp2px(0)); mUnderlineGravity = ta.getInt(R.styleable.SlidingTabLayout_tl_underline_gravity, Gravity.BOTTOM); mDividerColor = ta.getColor(R.styleable.SlidingTabLayout_tl_divider_color, Color.parseColor("#ffffff")); mDividerWidth = ta.getDimension(R.styleable.SlidingTabLayout_tl_divider_width, dp2px(0)); mDividerPadding = ta.getDimension(R.styleable.SlidingTabLayout_tl_divider_padding, dp2px(12)); mTextsize = ta.getDimension(R.styleable.SlidingTabLayout_tl_textsize, sp2px(14)); mTextSelectColor = ta.getColor(R.styleable.SlidingTabLayout_tl_textSelectColor, Color.parseColor("#ffffff")); mTextUnselectColor = ta.getColor(R.styleable.SlidingTabLayout_tl_textUnselectColor, Color.parseColor("#AAffffff")); mTextBold = ta.getInt(R.styleable.SlidingTabLayout_tl_textBold, TEXT_BOLD_NONE); mTextAllCaps = ta.getBoolean(R.styleable.SlidingTabLayout_tl_textAllCaps, false); mTabSpaceEqual = ta.getBoolean(R.styleable.SlidingTabLayout_tl_tab_space_equal, false); mTabWidth = ta.getDimension(R.styleable.SlidingTabLayout_tl_tab_width, dp2px(-1)); mTabPadding = ta.getDimension(R.styleable.SlidingTabLayout_tl_tab_padding, mTabSpaceEqual || mTabWidth > 0 ? dp2px(0) : dp2px(20)); ta.recycle(); } /** 关联ViewPager */ public void setViewPager(ViewPager vp) { if (vp == null || vp.getAdapter() == null) { throw new IllegalStateException("ViewPager or ViewPager adapter can not be NULL !"); } this.mViewPager = vp; this.mViewPager.removeOnPageChangeListener(this); this.mViewPager.addOnPageChangeListener(this); notifyDataSetChanged(); } /** 关联ViewPager,用于不想在ViewPager适配器中设置titles数据的情况 */ public void setViewPager(ViewPager vp, String[] titles) { if (vp == null || vp.getAdapter() == null) { throw new IllegalStateException("ViewPager or ViewPager adapter can not be NULL !"); } if (titles == null || titles.length == 0) { throw new IllegalStateException("Titles can not be EMPTY !"); } if (titles.length != vp.getAdapter().getCount()) { throw new IllegalStateException("Titles length must be the same as the page count !"); } this.mViewPager = vp; mTitles = new ArrayList<>(); Collections.addAll(mTitles, titles); this.mViewPager.removeOnPageChangeListener(this); this.mViewPager.addOnPageChangeListener(this); notifyDataSetChanged(); } /** 关联ViewPager,用于连适配器都不想自己实例化的情况 */ public void setViewPager(ViewPager vp, String[] titles, FragmentActivity fa, ArrayList<Fragment> fragments) { if (vp == null) { throw new IllegalStateException("ViewPager can not be NULL !"); } if (titles == null || titles.length == 0) { throw new IllegalStateException("Titles can not be EMPTY !"); } this.mViewPager = vp; this.mViewPager.setAdapter(new InnerPagerAdapter(fa.getSupportFragmentManager(), fragments, titles)); this.mViewPager.removeOnPageChangeListener(this); this.mViewPager.addOnPageChangeListener(this); notifyDataSetChanged(); } /** 更新数据 */ public void notifyDataSetChanged() { mTabsContainer.removeAllViews(); this.mTabCount = mTitles == null ? mViewPager.getAdapter().getCount() : mTitles.size(); View tabView; for (int i = 0; i < mTabCount; i++) { tabView = View.inflate(mContext, R.layout.layout_tab, null); CharSequence pageTitle = mTitles == null ? mViewPager.getAdapter().getPageTitle(i) : mTitles.get(i); addTab(i, pageTitle.toString(), tabView); } updateTabStyles(); } public void addNewTab(String title) { View tabView = View.inflate(mContext, R.layout.layout_tab, null); if (mTitles != null) { mTitles.add(title); } CharSequence pageTitle = mTitles == null ? mViewPager.getAdapter().getPageTitle(mTabCount) : mTitles.get(mTabCount); addTab(mTabCount, pageTitle.toString(), tabView); this.mTabCount = mTitles == null ? mViewPager.getAdapter().getCount() : mTitles.size(); updateTabStyles(); } /** 创建并添加tab */ private void addTab(final int position, String title, View tabView) { TextView tv_tab_title = (TextView) tabView.findViewById(R.id.tv_tab_title); if (tv_tab_title != null) { if (title != null) tv_tab_title.setText(title); } tabView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { int position = mTabsContainer.indexOfChild(v); if (position != -1) { if (mViewPager.getCurrentItem() != position) { if (mSnapOnTabClick) { mViewPager.setCurrentItem(position, false); } else { mViewPager.setCurrentItem(position); } if (mListener != null) { mListener.onTabSelect(position); } } else { if (mListener != null) { mListener.onTabReselect(position); } } } } }); /** 每一个Tab的布局参数 */ LinearLayout.LayoutParams lp_tab = mTabSpaceEqual ? new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT, 1.0f) : new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT); if (mTabWidth > 0) { lp_tab = new LinearLayout.LayoutParams((int) mTabWidth, LayoutParams.MATCH_PARENT); } mTabsContainer.addView(tabView, position, lp_tab); } private void updateTabStyles() { for (int i = 0; i < mTabCount; i++) { View v = mTabsContainer.getChildAt(i);// v.setPadding((int) mTabPadding, v.getPaddingTop(), (int) mTabPadding, v.getPaddingBottom()); TextView tv_tab_title = (TextView) v.findViewById(R.id.tv_tab_title); if (tv_tab_title != null) { tv_tab_title.setTextColor(i == mCurrentTab ? mTextSelectColor : mTextUnselectColor); tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize); tv_tab_title.setPadding((int) mTabPadding, 0, (int) mTabPadding, 0); if (mTextAllCaps) { tv_tab_title.setText(tv_tab_title.getText().toString().toUpperCase()); }
if (mTextBold == TEXT_BOLD_BOTH) { tv_tab_title.getPaint().setFakeBoldText(true); } else if (mTextBold == TEXT_BOLD_NONE) { tv_tab_title.getPaint().setFakeBoldText(false); } } //增加选中字体放大功能 解决刚一进入字体不放大的问题(axh添加) if (i == 0) { tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize + INCREASE_TEXT_SIZE); } } } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { /** * position:当前View的位置 * mCurrentPositionOffset:当前View的偏移量比例.[0,1) */ this.mCurrentTab = position; this.mCurrentPositionOffset = positionOffset; scrollToCurrentTab(); invalidate(); } @Override public void onPageSelected(int position) { updateTabSelection(position); } @Override public void onPageScrollStateChanged(int state) { } /** HorizontalScrollView滚到当前tab,并且居中显示 */ private void scrollToCurrentTab() { if (mTabCount <= 0) { return; } int offset = (int) (mCurrentPositionOffset * mTabsContainer.getChildAt(mCurrentTab).getWidth()); /**当前Tab的left+当前Tab的Width乘以positionOffset*/ int newScrollX = mTabsContainer.getChildAt(mCurrentTab).getLeft() + offset; if (mCurrentTab > 0 || offset > 0) { /**HorizontalScrollView移动到当前tab,并居中*/ newScrollX -= getWidth() / 2 - getPaddingLeft(); calcIndicatorRect(); newScrollX += ((mTabRect.right - mTabRect.left) / 2); } if (newScrollX != mLastScrollX) { mLastScrollX = newScrollX; /** scrollTo（int x,int y）:x,y代表的不是坐标点,而是偏移量 * x:表示离起始位置的x水平方向的偏移量 * y:表示离起始位置的y垂直方向的偏移量 */ scrollTo(newScrollX, 0); } } private void updateTabSelection(int position) { for (int i = 0; i < mTabCount; ++i) { View tabView = mTabsContainer.getChildAt(i); final boolean isSelect = i == position; TextView tab_title = (TextView) tabView.findViewById(R.id.tv_tab_title); if (tab_title != null) { tab_title.setTextColor(isSelect ? mTextSelectColor : mTextUnselectColor); /// 增加一个选中字体放大的效果 (axh添加) tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, isSelect ? (mTextsize + INCREASE_TEXT_SIZE) : (mTextsize)); if (mTextBold == TEXT_BOLD_WHEN_SELECT) { tab_title.getPaint().setFakeBoldText(isSelect); } } } } private float margin; private void calcIndicatorRect() { View currentTabView = mTabsContainer.getChildAt(this.mCurrentTab); float left = currentTabView.getLeft(); float right = currentTabView.getRight(); //for mIndicatorWidthEqualTitle if (mIndicatorStyle == STYLE_NORMAL && mIndicatorWidthEqualTitle) { TextView tab_title = (TextView) currentTabView.findViewById(R.id.tv_tab_title); mTextPaint.setTextSize(mTextsize); float textWidth = mTextPaint.measureText(tab_title.getText().toString()); margin = (right - left - textWidth) / 2; } if (this.mCurrentTab < mTabCount - 1) { View nextTabView = mTabsContainer.getChildAt(this.mCurrentTab + 1); float nextTabLeft = nextTabView.getLeft(); float nextTabRight = nextTabView.getRight(); left = left + mCurrentPositionOffset * (nextTabLeft - left); right = right + mCurrentPositionOffset * (nextTabRight - right); //for mIndicatorWidthEqualTitle if (mIndicatorStyle == STYLE_NORMAL && mIndicatorWidthEqualTitle) { TextView next_tab_title = (TextView) nextTabView.findViewById(R.id.tv_tab_title); mTextPaint.setTextSize(mTextsize); float nextTextWidth = mTextPaint.measureText(next_tab_title.getText().toString()); float nextMargin = (nextTabRight - nextTabLeft - nextTextWidth) / 2; margin = margin + mCurrentPositionOffset * (nextMargin - margin); } } mIndicatorRect.left = (int) left; mIndicatorRect.right = (int) right; //for mIndicatorWidthEqualTitle if (mIndicatorStyle == STYLE_NORMAL && mIndicatorWidthEqualTitle) { mIndicatorRect.left = (int) (left + margin - 1); mIndicatorRect.right = (int) (right - margin - 1); } mTabRect.left = (int) left; mTabRect.right = (int) right; if (mIndicatorWidth < 0) { //indicatorWidth小于0时,原jpardogo's PagerSlidingTabStrip } else {//indicatorWidth大于0时,圆角矩形以及三角形 float indicatorLeft = currentTabView.getLeft() + (currentTabView.getWidth() - mIndicatorWidth) / 2; if (this.mCurrentTab < mTabCount - 1) { View nextTab = mTabsContainer.getChildAt(this.mCurrentTab + 1); indicatorLeft = indicatorLeft + mCurrentPositionOffset * (currentTabView.getWidth() / 2 + nextTab.getWidth() / 2); } mIndicatorRect.left = (int) indicatorLeft; mIndicatorRect.right = (int) (mIndicatorRect.left + mIndicatorWidth); } } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (isInEditMode() || mTabCount <= 0) { return; } int height = getHeight(); int paddingLeft = getPaddingLeft(); // draw divider if (mDividerWidth > 0) { mDividerPaint.setStrokeWidth(mDividerWidth); mDividerPaint.setColor(mDividerColor); for (int i = 0; i < mTabCount - 1; i++) { View tab = mTabsContainer.getChildAt(i); canvas.drawLine(paddingLeft + tab.getRight(), mDividerPadding, paddingLeft + tab.getRight(), height - mDividerPadding, mDividerPaint); } } // draw underline if (mUnderlineHeight > 0) { mRectPaint.setColor(mUnderlineColor); if (mUnderlineGravity == Gravity.BOTTOM) { canvas.drawRect(paddingLeft, height - mUnderlineHeight, mTabsContainer.getWidth() + paddingLeft, height, mRectPaint); } else { canvas.drawRect(paddingLeft, 0, mTabsContainer.getWidth() + paddingLeft, mUnderlineHeight, mRectPaint); } } //draw indicator line calcIndicatorRect(); if (mIndicatorStyle == STYLE_TRIANGLE) { if (mIndicatorHeight > 0) { mTrianglePaint.setColor(mIndicatorColor); mTrianglePath.reset(); mTrianglePath.moveTo(paddingLeft + mIndicatorRect.left, height); mTrianglePath.lineTo(paddingLeft + mIndicatorRect.left / 2 + mIndicatorRect.right / 2, height - mIndicatorHeight); mTrianglePath.lineTo(paddingLeft + mIndicatorRect.right, height); mTrianglePath.close(); canvas.drawPath(mTrianglePath, mTrianglePaint); } } else if (mIndicatorStyle == STYLE_BLOCK) { if (mIndicatorHeight < 0) { mIndicatorHeight = height - mIndicatorMarginTop - mIndicatorMarginBottom; } else { } if (mIndicatorHeight > 0) { if (mIndicatorCornerRadius < 0 || mIndicatorCornerRadius > mIndicatorHeight / 2) { mIndicatorCornerRadius = mIndicatorHeight / 2; } mIndicatorDrawable.setColor(mIndicatorColor); mIndicatorDrawable.setBounds(paddingLeft + (int) mIndicatorMarginLeft + mIndicatorRect.left, (int) mIndicatorMarginTop, (int) (paddingLeft + mIndicatorRect.right - mIndicatorMarginRight), (int) (mIndicatorMarginTop + mIndicatorHeight)); mIndicatorDrawable.setCornerRadius(mIndicatorCornerRadius); mIndicatorDrawable.draw(canvas); } } else { /* mRectPaint.setColor(mIndicatorColor); calcIndicatorRect(); canvas.drawRect(getPaddingLeft() + mIndicatorRect.left, getHeight() - mIndicatorHeight, mIndicatorRect.right + getPaddingLeft(), getHeight(), mRectPaint);*/ if (mIndicatorHeight > 0) { mIndicatorDrawable.setColor(mIndicatorColor); if (mIndicatorGravity == Gravity.BOTTOM) { mIndicatorDrawable.setBounds(paddingLeft + (int) mIndicatorMarginLeft + mIndicatorRect.left, height - (int) mIndicatorHeight - (int) mIndicatorMarginBottom, paddingLeft + mIndicatorRect.right - (int) mIndicatorMarginRight, height - (int) mIndicatorMarginBottom); } else { mIndicatorDrawable.setBounds(paddingLeft + (int) mIndicatorMarginLeft + mIndicatorRect.left, (int) mIndicatorMarginTop, paddingLeft + mIndicatorRect.right - (int) mIndicatorMarginRight, (int) mIndicatorHeight + (int) mIndicatorMarginTop); } mIndicatorDrawable.setCornerRadius(mIndicatorCornerRadius); mIndicatorDrawable.draw(canvas); } } } //setter and getter public void setCurrentTab(int currentTab) { this.mCurrentTab = currentTab; mViewPager.setCurrentItem(currentTab); } public void setCurrentTab(int currentTab, boolean smoothScroll) { this.mCurrentTab = currentTab; mViewPager.setCurrentItem(currentTab, smoothScroll); } public void setIndicatorStyle(int indicatorStyle) { this.mIndicatorStyle = indicatorStyle; invalidate(); } public void setTabPadding(float tabPadding) { this.mTabPadding = dp2px(tabPadding); updateTabStyles(); } public void setTabSpaceEqual(boolean tabSpaceEqual) { this.mTabSpaceEqual = tabSpaceEqual; updateTabStyles(); } public void setTabWidth(float tabWidth) { this.mTabWidth = dp2px(tabWidth); updateTabStyles(); } public void setIndicatorColor(int indicatorColor) { this.mIndicatorColor = indicatorColor; invalidate(); } public void setIndicatorHeight(float indicatorHeight) { this.mIndicatorHeight = dp2px(indicatorHeight); invalidate(); } public void setIndicatorWidth(float indicatorWidth) { this.mIndicatorWidth = dp2px(indicatorWidth); invalidate(); } public void setIndicatorCornerRadius(float indicatorCornerRadius) { this.mIndicatorCornerRadius = dp2px(indicatorCornerRadius); invalidate(); } public void setIndicatorGravity(int indicatorGravity) { this.mIndicatorGravity = indicatorGravity; invalidate(); } public void setIndicatorMargin(float indicatorMarginLeft, float indicatorMarginTop, float indicatorMarginRight, float indicatorMarginBottom) { this.mIndicatorMarginLeft = dp2px(indicatorMarginLeft); this.mIndicatorMarginTop = dp2px(indicatorMarginTop); this.mIndicatorMarginRight = dp2px(indicatorMarginRight); this.mIndicatorMarginBottom = dp2px(indicatorMarginBottom); invalidate(); } public void setIndicatorWidthEqualTitle(boolean indicatorWidthEqualTitle) { this.mIndicatorWidthEqualTitle = indicatorWidthEqualTitle; invalidate(); } public void setUnderlineColor(int underlineColor) { this.mUnderlineColor = underlineColor; invalidate(); } public void setUnderlineHeight(float underlineHeight) { this.mUnderlineHeight = dp2px(underlineHeight); invalidate(); } public void setUnderlineGravity(int underlineGravity) { this.mUnderlineGravity = underlineGravity; invalidate(); } public void setDividerColor(int dividerColor) { this.mDividerColor = dividerColor; invalidate(); } public void setDividerWidth(float dividerWidth) { this.mDividerWidth = dp2px(dividerWidth); invalidate(); } public void setDividerPadding(float dividerPadding) { this.mDividerPadding = dp2px(dividerPadding); invalidate(); } public void setTextsize(float textsize) { this.mTextsize = sp2px(textsize); updateTabStyles(); } public void setTextSelectColor(int textSelectColor) { this.mTextSelectColor = textSelectColor; updateTabStyles(); } public void setTextUnselectColor(int textUnselectColor) { this.mTextUnselectColor = textUnselectColor; updateTabStyles(); } public void setTextBold(int textBold) { this.mTextBold = textBold; updateTabStyles(); } public void setTextAllCaps(boolean textAllCaps) { this.mTextAllCaps = textAllCaps; updateTabStyles(); } public void setSnapOnTabClick(boolean snapOnTabClick) { mSnapOnTabClick = snapOnTabClick; } public int getTabCount() { return mTabCount; } public int getCurrentTab() { return mCurrentTab; } public int getIndicatorStyle() { return mIndicatorStyle; } public float getTabPadding() { return mTabPadding; } public boolean isTabSpaceEqual() { return mTabSpaceEqual; } public float getTabWidth() { return mTabWidth; } public int getIndicatorColor() { return mIndicatorColor; } public float getIndicatorHeight() { return mIndicatorHeight; } public float getIndicatorWidth() { return mIndicatorWidth; } public float getIndicatorCornerRadius() { return mIndicatorCornerRadius; } public float getIndicatorMarginLeft() { return mIndicatorMarginLeft; } public float getIndicatorMarginTop() { return mIndicatorMarginTop; } public float getIndicatorMarginRight() { return mIndicatorMarginRight; } public float getIndicatorMarginBottom() { return mIndicatorMarginBottom; } public int getUnderlineColor() { return mUnderlineColor; } public float getUnderlineHeight() { return mUnderlineHeight; } public int getDividerColor() { return mDividerColor; } public float getDividerWidth() { return mDividerWidth; } public float getDividerPadding() { return mDividerPadding; } public float getTextsize() { return mTextsize; } public int getTextSelectColor() { return mTextSelectColor; } public int getTextUnselectColor() { return mTextUnselectColor; } public int getTextBold() { return mTextBold; } public boolean isTextAllCaps() { return mTextAllCaps; } public TextView getTitleView(int tab) { View tabView = mTabsContainer.getChildAt(tab); TextView tv_tab_title = (TextView) tabView.findViewById(R.id.tv_tab_title); return tv_tab_title; } //setter and getter // show MsgTipView private Paint mTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG); private SparseArray<Boolean> mInitSetMap = new SparseArray<>(); /** * 显示未读消息 * * @param position 显示tab位置 * @param num num小于等于0显示红点,num大于0显示数字 */ public void showMsg(int position, int num) { if (position >= mTabCount) { position = mTabCount - 1; } View tabView = mTabsContainer.getChildAt(position); MsgView tipView = (MsgView) tabView.findViewById(R.id.rtv_msg_tip); if (tipView != null) { UnreadMsgUtils.show(tipView, num); if (mInitSetMap.get(position) != null && mInitSetMap.get(position)) { return; } setMsgMargin(position, 4, 2); mInitSetMap.put(position, true); } } /** * 显示未读红点 * * @param position 显示tab位置 */ public void showDot(int position) { if (position >= mTabCount) { position = mTabCount - 1; } showMsg(position, 0); } /** 隐藏未读消息 */ public void hideMsg(int position) { if (position >= mTabCount) { position = mTabCount - 1; } View tabView = mTabsContainer.getChildAt(position); MsgView tipView = (MsgView) tabView.findViewById(R.id.rtv_msg_tip); if (tipView != null) { tipView.setVisibility(View.GONE); } } /** 设置未读消息偏移,原点为文字的右上角.当控件高度固定,消息提示位置易控制,显示效果佳 */ public void setMsgMargin(int position, float leftPadding, float bottomPadding) { if (position >= mTabCount) { position = mTabCount - 1; } View tabView = mTabsContainer.getChildAt(position); MsgView tipView = (MsgView) tabView.findViewById(R.id.rtv_msg_tip); if (tipView != null) { TextView tv_tab_title = (TextView) tabView.findViewById(R.id.tv_tab_title); mTextPaint.setTextSize(mTextsize); float textWidth = mTextPaint.measureText(tv_tab_title.getText().toString()); float textHeight = mTextPaint.descent() - mTextPaint.ascent(); MarginLayoutParams lp = (MarginLayoutParams) tipView.getLayoutParams(); lp.leftMargin = mTabWidth >= 0 ? (int) (mTabWidth / 2 + textWidth / 2 + dp2px(leftPadding)) : (int) (mTabPadding + textWidth + dp2px(leftPadding)); lp.topMargin = mHeight > 0 ? (int) (mHeight - textHeight) / 2 - dp2px(bottomPadding) : 0; tipView.setLayoutParams(lp); } } /** 当前类只提供了少许设置未读消息属性的方法,可以通过该方法获取MsgView对象从而各种设置 */ public MsgView getMsgView(int position) { if (position >= mTabCount) { position = mTabCount - 1; } View tabView = mTabsContainer.getChildAt(position); MsgView tipView = (MsgView) tabView.findViewById(R.id.rtv_msg_tip); return tipView; } private OnTabSelectListener mListener; public void setOnTabSelectListener(OnTabSelectListener listener) { this.mListener = listener; } class InnerPagerAdapter extends FragmentPagerAdapter { private ArrayList<Fragment> fragments = new ArrayList<>(); private String[] titles; public InnerPagerAdapter(FragmentManager fm, ArrayList<Fragment> fragments, String[] titles) { super(fm); this.fragments = fragments; this.titles = titles; } @Override public int getCount() { return fragments.size(); } @Override public CharSequence getPageTitle(int position) { return titles[position]; } @Override public Fragment getItem(int position) { return fragments.get(position); } @Override public void destroyItem(ViewGroup container, int position, Object object) { // 覆写destroyItem并且空实现,这样每个Fragment中的视图就不会被销毁 // super.destroyItem(container, position, object); } @Override public int getItemPosition(Object object) { return PagerAdapter.POSITION_NONE; } } @Override protected Parcelable onSaveInstanceState() { Bundle bundle = new Bundle(); bundle.putParcelable("instanceState", super.onSaveInstanceState()); bundle.putInt("mCurrentTab", mCurrentTab); return bundle; } @Override protected void onRestoreInstanceState(Parcelable state) { if (state instanceof Bundle) { Bundle bundle = (Bundle) state; mCurrentTab = bundle.getInt("mCurrentTab"); state = bundle.getParcelable("instanceState"); if (mCurrentTab != 0 && mTabsContainer.getChildCount() > 0) { updateTabSelection(mCurrentTab); scrollToCurrentTab(); } } super.onRestoreInstanceState(state); } protected int dp2px(float dp) { final float scale = mContext.getResources().getDisplayMetrics().density; return (int) (dp * scale + 0.5f); } protected int sp2px(float sp) { final float scale = this.mContext.getResources().getDisplayMetrics().scaledDensity; return (int) (sp * scale + 0.5f); }}
这是我修改后的。你可以参考
多谢!可以用
上面解决了问题。但是刚一进入之后选中的字体不会放大。于是我在代码中有增加了这样的代码： private void updateTabStyles() { for (int i = 0; i < mTabCount; i++) { View v = mTabsContainer.getChildAt(i); // v.setPadding((int) mTabPadding, v.getPaddingTop(), (int) mTabPadding, v.getPaddingBottom()); TextView tv_tab_title = (TextView) v.findViewById(R.id.tv_tab_title); if (tv_tab_title != null) { tv_tab_title.setTextColor(i == mCurrentTab ? mTextSelectColor : mTextUnselectColor); tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize); tv_tab_title.setPadding((int) mTabPadding, 0, (int) mTabPadding, 0); if (mTextAllCaps) { tv_tab_title.setText(tv_tab_title.getText().toString().toUpperCase()); }
if (mTextBold == TEXT_BOLD_BOTH) { tv_tab_title.getPaint().setFakeBoldText(true); } else if (mTextBold == TEXT_BOLD_NONE) { tv_tab_title.getPaint().setFakeBoldText(false); } } //增加选中字体放大功能 解决刚一进入字体不放大的问题 if (i == 0) { tv_tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextsize + INCREASE_TEXT_SIZE); } } }目前已经实现了。谢谢作者。谢谢你的贡献。
你好,我是直接添加的依赖,怎么去改他的源码呢?也是要实现选中后字体变大的效果 源码中有getTitleView() 方法可以获取到tab的TextView，然后可以通过tab选择监听设置字体大小
mTextSelectSize = ta.getDimension(R.styleable.CommonTabLayout_tl_textSelectSize, sp2px(13f));
mTextUnselectSize = ta.getDimension(R.styleable.CommonTabLayout_tl_textUnselectSize, sp2px(13f));
加了倆属性 然后
布局 tl_textSelectSize tl_textUnselectSize 正常用就行了
