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package github.daneren2005.dsub.util;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import github.daneren2005.dsub.activity.SubsonicActivity;
/**
* @author Sindre Mehus
* @version $Id$
*/
public abstract class LoadingTask<T> extends BackgroundTask<T> {
private final Activity tabActivity;
private ProgressDialog loading;
private final boolean cancellable;
public LoadingTask(Activity activity) {
super(activity);
tabActivity = activity;
this.cancellable = true;
}
public LoadingTask(Activity activity, final boolean cancellable) {
super(activity);
tabActivity = activity;
this.cancellable = cancellable;
}
@Override
public void execute() {
loading = ProgressDialog.show(tabActivity, "", "Loading. Please Wait...", true, cancellable, new DialogInterface.OnCancelListener() {
public void onCancel(DialogInterface dialog) {
cancel();
}
});
queue.offer(task = new Task() {
@Override
public void onDone(T result) {
if(loading.isShowing()) {
loading.dismiss();
}
done(result);
}
@Override
public void onError(Throwable t) {
if(loading.isShowing()) {
loading.dismiss();
}
error(t);
}
});
}
@Override
public boolean isCancelled() {
return (tabActivity instanceof SubsonicActivity && ((SubsonicActivity) tabActivity).isDestroyedCompat()) || cancelled.get();
}
@Override
public void updateProgress(final String message) {
if(!cancelled.get()) {
getHandler().post(new Runnable() {
@Override
public void run() {
loading.setMessage(message);
}
});
}
}
}
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