我正在尝试使用Glide下载图片,并将其设置为墙纸,并且在下载时,它使用MaterialDialogs库显示一个对话框,但是以某种方式几乎在加载图片时,该对话框会冻结一秒钟...这是我的代码:
final MaterialDialog downloadDialogA = new MaterialDialog.Builder(context)
.content(R.string.downloading_wallpaper)
.progress(true, 0)
.cancelable(false)
.show();
Glide.with(context)
.load(wallurl)
.asBitmap()
.into(new SimpleTarget<Bitmap>() {
@Override
public void onResourceReady(Bitmap resource, GlideAnimation<? super Bitmap> glideAnimation) {
downloadDialogA.setContent(context.getString(R.string.setting_wall_title));
if (resource != null) {
WallpaperManager wm = WallpaperManager.getInstance(context);
try {
wm.setBitmap(resource);
Toast.makeText(context, R.string.set_as_wall_done, Toast.LENGTH_LONG).show();
Log.v("Wall", "It worked!");
} catch (IOException e2) {
Toast.makeText(context, e2.getLocalizedMessage(), Toast.LENGTH_LONG).show();
Log.v("Wall", "Error " + e2.getMessage());
}
}
downloadDialogA.dismiss();
}
});
[请注意,我不想使用其他库下载图片。工作正常。我只是想防止对话框冻结。
提前感谢。
我创建了一个新的AsyncTask,其代码为:
public class ApplyWallpaper extends AsyncTask<Void, String, Boolean> {
private Context context;
private Activity activity;
private MaterialDialog dialog;
private Bitmap resource;
public ApplyWallpaper(Context context, MaterialDialog dialog, Bitmap resource) {
this.activity = (Activity) context;
this.context = context;
this.dialog = dialog;
this.resource = resource;
}
@Override
protected Boolean doInBackground(Void... params) {
WallpaperManager wm = WallpaperManager.getInstance(context);
Boolean worked;
try {
wm.setBitmap(resource);
worked = true;
Log.e("Wall", "It worked!");
} catch (IOException e2) {
worked = false;
Log.e("Wall", "Error " + e2.getMessage());
}
return worked;
}
@Override
protected void onPostExecute(Boolean worked) {
if (worked){
dialog.dismiss();
Toast.makeText(context, R.string.set_as_wall_done, Toast.LENGTH_LONG).show();
} else {
Toast.makeText(context, R.string.error, Toast.LENGTH_LONG).show();
}
}
}
然后,当资源准备就绪时(使用Glide提供的回调方法),我执行了AsyncTask,如下所示:
Glide.with(context) .load(wallurl) .asBitmap() .into(new SimpleTarget<Bitmap>() { @Override public void onResourceReady(final Bitmap resource, GlideAnimation<? super Bitmap> glideAnimation) { if (resource != null) { downloadDialogA.setContent(context.getString(R.string.setting_wall_title)); new ApplyWallpaper(context, downloadDialogA, resource).execute(); } } });
并且完美地工作。感谢Javier Santos的指导。