narayana/conversations-classic
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use async avatar loading in AccountAdapter

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This commit is contained in:
Daniel Gultsch 2017-03-09 10:58:11 +01:00
parent c3b2f33956
commit cdf2bd07df
1 changed files with 93 additions and 1 deletions
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94
src/main/java/eu/siacs/conversations/ui/adapter/AccountAdapter.java
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@ -1,6 +1,11 @@
package eu.siacs.conversations.ui.adapter;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
@ -9,7 +14,9 @@ import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.TextView;
import java.lang.ref.WeakReference;
import java.util.List;
import java.util.concurrent.RejectedExecutionException;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.R;
@ -17,6 +24,7 @@ import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.ui.ManageAccountActivity;
import eu.siacs.conversations.ui.XmppActivity;
import eu.siacs.conversations.ui.widget.Switch;
import eu.siacs.conversations.utils.UIHelper;
public class AccountAdapter extends ArrayAdapter<Account> {
@ -43,7 +51,7 @@ public class AccountAdapter extends ArrayAdapter<Account> {
}
TextView statusView = (TextView) view.findViewById(R.id.account_status);
ImageView imageView = (ImageView) view.findViewById(R.id.account_image);
imageView.setImageBitmap(activity.avatarService().get(account, activity.getPixel(48)));
loadAvatar(account,imageView);
statusView.setText(getContext().getString(account.getStatus().getReadableId()));
switch (account.getStatus()) {
case ONLINE:
@ -70,4 +78,88 @@ public class AccountAdapter extends ArrayAdapter<Account> {
});
return view;
}
class BitmapWorkerTask extends AsyncTask<Account, Void, Bitmap> {
private final WeakReference<ImageView> imageViewReference;
private Account account = null;
public BitmapWorkerTask(ImageView imageView) {
imageViewReference = new WeakReference<>(imageView);
}
@Override
protected Bitmap doInBackground(Account... params) {
return activity.avatarService().get(params[0], activity.getPixel(48), isCancelled());
}
@Override
protected void onPostExecute(Bitmap bitmap) {
if (bitmap != null && !isCancelled()) {
final ImageView imageView = imageViewReference.get();
if (imageView != null) {
imageView.setImageBitmap(bitmap);
imageView.setBackgroundColor(0x00000000);
}
}
}
}
public void loadAvatar(Account account, ImageView imageView) {
if (cancelPotentialWork(account, imageView)) {
final Bitmap bm = activity.avatarService().get(account,activity.getPixel(48),true);
if (bm != null) {
cancelPotentialWork(account, imageView);
imageView.setImageBitmap(bm);
imageView.setBackgroundColor(0x00000000);
} else {
imageView.setBackgroundColor(UIHelper.getColorForName(account.getDisplayName()));
imageView.setImageDrawable(null);
final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task);
imageView.setImageDrawable(asyncDrawable);
try {
task.execute(account);
} catch (final RejectedExecutionException ignored) {
}
}
}
}
public static boolean cancelPotentialWork(Account account, ImageView imageView) {
final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
if (bitmapWorkerTask != null) {
final Account oldAccount = bitmapWorkerTask.account;
if (oldAccount == null || account != oldAccount) {
bitmapWorkerTask.cancel(true);
} else {
return false;
}
}
return true;
}
private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
if (imageView != null) {
final Drawable drawable = imageView.getDrawable();
if (drawable instanceof AsyncDrawable) {
final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
return asyncDrawable.getBitmapWorkerTask();
}
}
return null;
}
static class AsyncDrawable extends BitmapDrawable {
private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
public AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
super(res, bitmap);
bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
}
public BitmapWorkerTask getBitmapWorkerTask() {
return bitmapWorkerTaskReference.get();
}
}
}