Hello Can i use English String in this view？

[183801597]

[AndroidMsky]

No，you cant ， it just works for NUMBER，it may supported forover，Thank you。

[TsaiYongChuan]

修改了一下 , 支持其他字符, 防止非数字报错的情况 , 并且不为数字不滚动

@SuppressLint("AppCompatCustomView") public class RandomTextView extends TextView { //高位快 public static final int FIRSTF_FIRST = 0; //高位慢 public static final int FIRSTF_LAST = 1; //速度相同 public static final int ALL = 2; //用户自定义速度 public static final int USER = 3; //偏移速度类型 private int pianyiliangTpye;

//   滚动总行数 可设置
private int maxLine = 10;
//   当前字符串长度
private int numLength = 0;
//   当前text
private String text;


//滚动速度数组
private int[] pianyilianglist;
//总滚动距离数组
private int[] pianyiliangSum;
//滚动完成判断
private int[] overLine;
private Paint p;
//第一次绘制
private boolean firstIn = true;
//滚动中
private boolean auto = true;

//text int值列表
private ArrayList<Integer> arrayListText;

//字体宽度
private float f0;

//基准线
private int baseline;

private int measuredHeight;


public RandomTextView(Context context) {
    super(context);
}

public RandomTextView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
}

public RandomTextView(Context context, AttributeSet attrs) {
    super(context, attrs);
}

//按系统提供的类型滚动
public void setPianyilian(int pianyiliangTpye) {
    this.text = getText().toString();

    pianyiliangSum = new int[text.length()];
    overLine = new int[text.length()];
    pianyilianglist = new int[text.length()];
    switch (pianyiliangTpye) {
        case FIRSTF_FIRST:
            for (int i = 0; i < text.length(); i++) {
                pianyilianglist[i] = 20 - i;
            }

            break;
        case FIRSTF_LAST:
            for (int i = 0; i < text.length(); i++) {
                pianyilianglist[i] = 15 + i;
            }

            break;
        case ALL:
            for (int i = 0; i < text.length(); i++) {
                pianyilianglist[i] = 15;
            }

            break;
    }
}

//自定义滚动速度数组
public void setPianyilian(int[] list) {
    this.text = getText().toString();

    pianyiliangSum = new int[list.length];
    overLine = new int[list.length];
    pianyilianglist = list;


}


@Override
protected void onDraw(Canvas canvas) {

    Log.d("RandomTextView","draw");
    if (firstIn) {
        firstIn = false;
        super.onDraw(canvas);
        p = getPaint();
        Paint.FontMetricsInt fontMetrics = p.getFontMetricsInt();
        measuredHeight = getMeasuredHeight();
        Log.d("EEEEEEE", "onDraw: " + measuredHeight);
        baseline = (measuredHeight - fontMetrics.bottom + fontMetrics.top) / 2 - fontMetrics.top;
        float[] widths = new float[4];
        p.getTextWidths("9999", widths);
        f0 = widths[0];
        invalidate();
    }
    drawNumber(canvas);
}


//绘制
private void drawNumber(Canvas canvas) {

    for (int j = 0; j < numLength; j++) {
        for (int i = 1; i < maxLine; i++) {
            if (i == maxLine - 1 && i * baseline + pianyiliangSum[j] <= baseline) {
                pianyilianglist[j] = 0;
                overLine[j] = 1;
                int auto = 0;
                for (int k = 0; k < numLength; k++) {
                    auto += overLine[k];
                }
                if (auto == numLength * 2 - 1) {

                    handler.removeCallbacks(task);
                    //修复停止后绘制问题
                    if (this.auto)
                        invalidate();
                    this.auto = false;
                }

            }
            if (overLine[j] == 0){
                //判断是否为数字 , 不是数字不滚动
                if(arrayListText.get(j) == -1){
                    String chars = text.toString();
                    drawText(canvas, chars.charAt(j) + "", 0 + f0 * j,
                        baseline, p);
                }else{
                    drawText(canvas, setBack(arrayListText.get(j), maxLine - i - 1) + "", 0 + f0 * j,
                        i * baseline + pianyiliangSum[j], p);
                }
                
            } else {
                //定位后画一次就好啦
                if (overLine[j] == 1) {
                    overLine[j]++;
                    String chars = text.toString();
                    drawText(canvas, chars.charAt(j) + "", 0 + f0 * j,
                        baseline, p);
                }

            }


        }


    }
}




//设置上方数字0-9递减
private int setBack(int c, int back) {

    if (back == 0) return c;

    back = back % 10;

    int re = c - back;

    if (re < 0) re = re + 10;

    return re;
}

//开始滚动
public void start() {

    this.text = getText().toString();
    numLength = text.length();

    arrayListText = getList(text);

    handler.postDelayed(task, 17);

    auto = true;

}

public void setMaxLine(int l) {
    this.maxLine = l;
}

private ArrayList<Integer> getList(String s) {

    ArrayList<Integer> arrayList = new ArrayList<Integer>();
    for (int i = 0; i < s.length(); i++) {
        String ss = s.substring(i, i + 1);

        String numer = ss.replaceAll("[^(0-9)]", "-1");
        int a = Integer.parseInt(numer);
        arrayList.add(a);
    }
    return arrayList;

}

;


private static final Handler handler = new Handler();

public void destroy() {
    auto = false;
    handler.removeCallbacks(task);

}

private final Runnable task = new Runnable() {

    public void run() {
        // TODO Auto-generated method stub
        if (auto) {
            Log.d("RandomTextView",""+auto);
            handler.postDelayed(this, 20);

            for (int j = 0; j < numLength; j++) {
                pianyiliangSum[j] -= pianyilianglist[j];

            }

            invalidate();
        }

    }
};


@Override
protected void onDetachedFromWindow() {
    super.onDetachedFromWindow();
    destroy();
}

private void drawText(Canvas mCanvas, String text, float x, float y, Paint p) {

    if (y >= -measuredHeight && y <= 2 * measuredHeight)

        mCanvas.drawText(text + "", x,
            y, p);
    else return;
}

}

[AndroidMsky]

很高兴你能参与项目，能不能麻烦你，fork这个项目到你的GitHub，然后提交一次你的更改。

[TsaiYongChuan]

已经提交了