Doh, good catch. The View.setVisibility() method is marked with the
@android.view.RemotableViewMethod annotation, which is what allows it
to be called through RemoteViews. In this case, ProgressBar actually
overrides the default View implementation, but without adding that
annotation. (This is why it throws the exception.)
One quick workaround is to wrap the ProgressBar into a simple view
like FrameLayout, and then setVisibility() on that wrapper.
j
On Fri, Aug 7, 2009 at 3:49 PM, Craig<craig.det...@gmail.com> wrote:
>
> I was trying to set a progress bar to View.INVISIBLE or View.GONE, or
> View.VISIBLE inside an AppWidgetProvider. However, it doesn't seem to
> want to do it. Setting visibility works fine with TextView fields or
> ImageView fields or ImageButtons. However, ProgressBar doesn't seem to
> work. It doesn't make sense that just the progress bar type isn't
> supported for controlling visibility. Has anyone else seen this
> problem?
>
>
> The code:
>
> �...@override
> public void onUpdate(Context context, AppWidgetManager
> appWidgetManager, int[] appWidgetIds) {
>
> RemoteViews updateViews = new RemoteViews(context.getPackageName(),
> R.layout.a_widget_home_screen);
>
> updateViews.setViewVisibility(R.id.progress_bar,
> View.VISIBLE);
> }
>
>
>
> <?xml version="1.0" encoding="utf-8"?>
> <RelativeLayout
> xmlns:android="http://schemas.android.com/apk/res/android";
> android:orientation="vertical"
> android:layout_width="fill_parent"
> android:layout_height="fill_parent">
>
> <ProgressBar android:id="@+id/progress_bar"
> android:layout_height="32px"
> android:layout_width="32px"
> android:indeterminate="true"
> android:layout_marginLeft="110px"
> android:layout_marginTop="120px"
> android:visibility="gone"
> />
>
> </RelativeLayout>
>
>
> This is the error:
>
>
>
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): updateAppWidget
> couldn't find any view, using error view
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102):
> android.widget.RemoteViews$ActionException: view:
> android.widget.ProgressBar can't use method with RemoteViews:
> setVisibility(int)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> android.widget.RemoteViews$ReflectionAction.apply(RemoteViews.java:
> 443)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> android.widget.RemoteViews.performApply(RemoteViews.java:855)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> android.widget.RemoteViews.apply(RemoteViews.java:832)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> android.appwidget.AppWidgetHostView.updateAppWidget
> (AppWidgetHostView.java:167)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> android.appwidget.AppWidgetHost.updateAppWidgetView(AppWidgetHost.java:
> 243)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> android.appwidget.AppWidgetHost$UpdateHandler.handleMessage
> (AppWidgetHost.java:73)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> android.os.Handler.dispatchMessage(Handler.java:99)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> android.os.Looper.loop(Looper.java:123)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> android.app.ActivityThread.main(ActivityThread.java:3948)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> java.lang.reflect.Method.invokeNative(Native Method)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> java.lang.reflect.Method.invoke(Method.java:521)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
> (ZygoteInit.java:782)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
> 08-07 17:42:42.633: WARN/AppWidgetHostView(102): at
> dalvik.system.NativeStart.main(Native Method)
>
> >
>
--
Jeff Sharkey
jshar...@android.com
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