Android 4.4 Compatibility

[yusufsaber]

Hey guys,

Great work with this library. It uses a method in the CustomGalleryActivity class that is deprecated though. I have fixed this issue in my project and thought you might like to share. The new code is below:

package com.luminous.pick;

import android.app.Activity;
import android.app.LoaderManager;
import android.content.CursorLoader;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.provider.MediaStore;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;

import com.nostra13.universalimageloader.cache.memory.impl.WeakMemoryCache;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
import com.nostra13.universalimageloader.core.assist.ImageScaleType;

import java.util.ArrayList;

public class CustomGalleryActivity extends Activity implements LoaderManager.LoaderCallbacks<Cursor>{

    GridView gridGallery;
    Handler handler;
    GalleryAdapter adapter;

    ImageView imgNoMedia;
    Button btnGalleryOk;

    String action;
    private ImageLoader imageLoader;

    LoaderManager loaderManager;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.gallery);

        action = getIntent().getAction();
        if (action == null) {
            finish();
        }
        initImageLoader();
        init();
    }

    private void initImageLoader() {
        DisplayImageOptions defaultOptions = new DisplayImageOptions.Builder()
                .cacheOnDisc().imageScaleType(ImageScaleType.EXACTLY_STRETCHED)
                .bitmapConfig(Bitmap.Config.RGB_565).build();
        ImageLoaderConfiguration.Builder builder = new ImageLoaderConfiguration.Builder(
                this).defaultDisplayImageOptions(defaultOptions).memoryCache(
                new WeakMemoryCache());

        ImageLoaderConfiguration config = builder.build();
        imageLoader = ImageLoader.getInstance();
        imageLoader.init(config);
    }

    private void init() {

        loaderManager = getLoaderManager();
        loaderManager.initLoader(1, null, this);

        handler = new Handler();
        gridGallery = (GridView) findViewById(R.id.gridGallery);
        gridGallery.setFastScrollEnabled(true);
        adapter = new GalleryAdapter(getApplicationContext(), imageLoader);

        if (action.equalsIgnoreCase(Action.ACTION_MULTIPLE_PICK)) {

            findViewById(R.id.llBottomContainer).setVisibility(View.VISIBLE);
            gridGallery.setOnItemClickListener(mItemMulClickListener);
            adapter.setMultiplePick(true);

        } else if (action.equalsIgnoreCase(Action.ACTION_PICK)) {

            findViewById(R.id.llBottomContainer).setVisibility(View.GONE);
            gridGallery.setOnItemClickListener(mItemSingleClickListener);
            adapter.setMultiplePick(false);

        }

        gridGallery.setAdapter(adapter);
        imgNoMedia = (ImageView) findViewById(R.id.imgNoMedia);

        btnGalleryOk = (Button) findViewById(R.id.btnGalleryOk);
        btnGalleryOk.setOnClickListener(mOkClickListener);



    }

    private void checkImageStatus() {
        if (adapter.isEmpty()) {
            imgNoMedia.setVisibility(View.VISIBLE);
        } else {
            imgNoMedia.setVisibility(View.GONE);
        }
    }

    View.OnClickListener mOkClickListener = new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            ArrayList<CustomGallery> selected = adapter.getSelected();

            String[] allPath = new String[selected.size()];
            for (int i = 0; i < allPath.length; i++) {
                allPath[i] = selected.get(i).sdcardPath;
            }

            Intent data = new Intent().putExtra("all_path", allPath);
            setResult(RESULT_OK, data);
            finish();

        }
    };
    AdapterView.OnItemClickListener mItemMulClickListener = new AdapterView.OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> l, View v, int position, long id) {
            adapter.changeSelection(v, position);

        }
    };

    AdapterView.OnItemClickListener mItemSingleClickListener = new AdapterView.OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> l, View v, int position, long id) {
            CustomGallery item = adapter.getItem(position);
            Intent data = new Intent().putExtra("single_path", item.sdcardPath);
            setResult(RESULT_OK, data);
            finish();
        }
    };


    @Override
    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
        final String[] columns = { MediaStore.Images.Media.DATA, MediaStore.Images.Media._ID };
        final String orderBy = MediaStore.Images.Media._ID;
        return new CursorLoader(this, MediaStore.Images.Media.EXTERNAL_CONTENT_URI, columns, null, null, orderBy);
    }

    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
        final ArrayList<CustomGallery> galleryList = new ArrayList<CustomGallery>();
        try {

            if (data != null && data.getCount() > 0) {
                while (data.moveToNext()) {
                    CustomGallery item = new CustomGallery();

                    int dataColumnIndex = data
                            .getColumnIndex(MediaStore.Images.Media.DATA);

                    item.sdcardPath = data.getString(dataColumnIndex);
                    galleryList.add(item);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        new Thread() {

            @Override
            public void run() {
                Looper.prepare();
                handler.post(new Runnable() {

                    @Override
                    public void run() {
                        adapter.addAll(galleryList);
                        checkImageStatus();
                    }
                });
                Looper.loop();
            };

        }.start();
    }

    @Override
    public void onLoaderReset(Loader<Cursor> loader) {

    }
}

[zokipirlo]

Hi. This code works great, but there is one problem. When this loader is loaded second time, it won't show any item. To fix that you should replace in onLoadFinished "data.getCount() > 0" with "data.moveToFirst()".

[dhavaljivani]

in this code says :- getLoaderManager() is undefined for the type CustomGalleryActivity

[cherryyingzizhang]

This code is working for me, thank you yusufsaber and zokipirlo. Perhaps this code should replace the current one.