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Use org.linphone.utils BitmapAsync class

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This commit is contained in:
Sylvain Berfini 2018-11-27 17:05:10 +01:00
parent d1f7a51cf5
commit bd89b15de7
1 changed files with 4 additions and 127 deletions
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131
app/src/main/java/org/linphone/chat/ChatMessagesOldAdapter.java
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@ -61,6 +61,8 @@ import org.linphone.utils.FileUtils;
import org.linphone.utils.LinphoneUtils;
import org.linphone.utils.SelectableAdapter;
import org.linphone.utils.SelectableHelper;
import org.linphone.views.AsyncBitmap;
import org.linphone.views.BitmapWorkerTask;
import org.linphone.views.ContactAvatar;
import java.io.File;
@ -489,7 +491,7 @@ public class ChatMessagesOldAdapter extends SelectableAdapter<ChatMessageOldView
private void loadBitmap(String path, ImageView imageView) {
if (cancelPotentialWork(path, imageView)) {
mDefaultBitmap = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.chat_file);
BitmapWorkerTask task = new BitmapWorkerTask(imageView);
BitmapWorkerTask task = new BitmapWorkerTask(mContext, imageView, mDefaultBitmap);
final AsyncBitmap asyncBitmap = new AsyncBitmap(mContext.getResources(), mDefaultBitmap, task);
imageView.setImageDrawable(asyncBitmap);
task.execute(path);
@ -560,122 +562,8 @@ public class ChatMessagesOldAdapter extends SelectableAdapter<ChatMessageOldView
}
}
/*
* Bitmap related classes and methods
*/
private class BitmapWorkerTask extends AsyncTask<String, Void, Bitmap> {
private final WeakReference<ImageView> imageViewReference;
public String path;
public BitmapWorkerTask(ImageView imageView) {
path = null;
// Use a WeakReference to ensure the ImageView can be garbage collected
imageViewReference = new WeakReference<>(imageView);
}
private Bitmap scaleToFitHeight(Bitmap b, int height) {
float factor = height / (float) b.getHeight();
return Bitmap.createScaledBitmap(b, (int) (b.getWidth() * factor), height, true);
}
// Decode image in background.
@Override
protected Bitmap doInBackground(String... params) {
path = params[0];
Bitmap bm = null;
Bitmap thumbnail = null;
if (FileUtils.isExtensionImage(path)) {
if (path.startsWith("content")) {
try {
bm = MediaStore.Images.Media.getBitmap(mContext.getContentResolver(), Uri.parse(path));
} catch (FileNotFoundException e) {
Log.e(e);
} catch (IOException e) {
Log.e(e);
}
} else {
bm = BitmapFactory.decodeFile(path);
}
ImageView imageView = imageViewReference.get();
try {
// Rotate the bitmap if possible/needed, using EXIF data
Matrix matrix = new Matrix();
ExifInterface exif = new ExifInterface(path);
int pictureOrientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 0);
if (pictureOrientation == 6 || pictureOrientation == 3 || pictureOrientation == 8) {
if (pictureOrientation == 6) {
matrix.postRotate(90);
} else if (pictureOrientation == 3) {
matrix.postRotate(180);
} else {
matrix.postRotate(270);
}
if (pictureOrientation == 6 || pictureOrientation == 8) {
matrix.postScale(1, imageView.getMeasuredHeight() / (float) bm.getHeight());
} else {
matrix.postScale(imageView.getMeasuredHeight() / (float) bm.getHeight(), 1);
}
thumbnail = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(), bm.getHeight(), matrix, true);
if (thumbnail != bm) {
bm.recycle();
bm = null;
}
}
} catch (Exception e) {
Log.e(e);
}
if (thumbnail == null && bm != null) {
thumbnail = scaleToFitHeight(bm, imageView.getMeasuredHeight());
bm.recycle();
}
return thumbnail;
} else {
return mDefaultBitmap;
}
}
// Once complete, see if ImageView is still around and set bitmap.
@Override
protected void onPostExecute(Bitmap bitmap) {
if (isCancelled()) {
bitmap.recycle();
bitmap = null;
}
if (imageViewReference != null && bitmap != null) {
final ImageView imageView = imageViewReference.get();
final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
if (this == bitmapWorkerTask && imageView != null) {
imageView.setImageBitmap(bitmap);
imageView.setTag(path);
imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
openFile((String) v.getTag());
}
});
}
}
}
}
class AsyncBitmap extends BitmapDrawable {
private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
public AsyncBitmap(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
super(res, bitmap);
bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
}
public BitmapWorkerTask getBitmapWorkerTask() {
return bitmapWorkerTaskReference.get();
}
}
private boolean cancelPotentialWork(String path, ImageView imageView) {
final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
final BitmapWorkerTask bitmapWorkerTask = BitmapWorkerTask.getBitmapWorkerTask(imageView);
if (bitmapWorkerTask != null) {
final String bitmapData = bitmapWorkerTask.path;
@ -691,15 +579,4 @@ public class ChatMessagesOldAdapter extends SelectableAdapter<ChatMessageOldView
// No task associated with the ImageView, or an existing task was cancelled
return true;
}
private BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
if (imageView != null) {
final Drawable drawable = imageView.getDrawable();
if (drawable instanceof AsyncBitmap) {
final AsyncBitmap asyncDrawable = (AsyncBitmap) drawable;
return asyncDrawable.getBitmapWorkerTask();
}
}
return null;
}
}