android - How to change the ProgressBar color in a widget?

Question

Is there any way to change the color of the ProgressBar residing in the app widget at runtime?

This is how the ProgressBar progress value is updated:

RemoteViews views = new RemoteViews( context.getPackageName(), R.layout.widget );
views.setProgressBar( R.id.progressbar, 100, 10, false );
...
appWidgetManager.updateAppWidget( widgetID, views );

Unfortunately, the RemoteViews class does not allow us to set a color filter or even a different progress drawable for ProgressBar.

Any ideas would be appreciated.

Answer 1

I have encountered with similar problem to tint ProgressBar inside custom notification layout. I have managed to do it using reflection API:

    Method setTintMethod = null;
    try {
        setTintMethod = RemoteViews.class.getMethod("setProgressTintList", int.class, ColorStateList.class);
    } catch (SecurityException e) {
        e.printStackTrace();
    } catch (NoSuchMethodException e) {
        e.printStackTrace();
    }
    if (setTintMethod != null) {
        try {
            setTintMethod.invoke(mYourRemoteViews, R.id.your_progress_bar_id, ColorStateList.valueOf(yourColor));
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }
    }