I have a Button on appwidget, that I need to 'enable'/'disable' programmatically from a Service.
First idea was to call setBoolean(R.id.buttonid, "setClickable", false) to disable it, but apparently you can't call setClickable remotely.
Another idea was was remove the text label from it with rv.setTextViewText(R.id.buttonid, "") and then remove the click handler by rv.setOnClickPendingIntent(R.id.buttonid, null). Unfortunately passing null to it causes NullPointerException in in android.app.ActivityThread.handleServiceArgs
Is there some other way to programmatically disable/enable appwidget Button? I could just call rv.setViewVisibility(R.id.buttonid, View.GONE) to hide the button completely instead of disabling it. This would however completely break whole widget layout and I would like to avoid it.
The solution I'm using now is hiding the button with setViewVisibility and showing other blank button instead to the keep appwidget layout as it was before.
Basically I had the same problem, but wanted to do it entirely programmatic, so we just pass the boolean value to the setBoolean() function:
remoteViews.setBoolean(R.id.imageButton1, "setEnabled", false);
Don't forget to tell Android to update the home screen:
RemoteViews remoteViews = new RemoteViews(context.getResources().getText(R.string.package_name).toString(), R.layout.your_layout);
ComponentName thisWidget = new ComponentName(context, Widget.class);
AppWidgetManager manager = AppWidgetManager.getInstance(context);
manager.updateAppWidget(thisWidget, remoteViews);
When you create your RemoteViews instance, you supply a layout. When you want to disable the button, choose a layout with android:enabled="false" on that button.
Or, you could use setOnClickPendingIntent() and supply an Intent that just will not go anywhere (e.g., a broadcast Intent for an action that nobody uses).
Related
My application hosts user installed widgets, same as a launcher application.
Once I bind the widget, everything works fine. Widgets are created, updated automatically, I can click to navigate inner views.
Everything keeps working fine, until I update my application from Play store (or manually with a signed APK).
After the update, the widgets still show but they won't update anymore. Some widgets function when I click on them but the view is stuck and never gets updated until I re-create the widget (get a new ID and bind it).
I tried forcing an update using
Intent intent = new Intent();
intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
intent.setComponent(appWidgetInfo.provider);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[]
{appWidgetId});
context.sendBroadcast(intent);
but that doesn't help...
I wanted to try a forced update on click but I couldn't find any way to get the widget's RemoteViews (as this is not my widget, I just host it).
RemoteViews views =
new RemoteViews(context.getPackageName(),R.layout.mywidget_layout);
Intent updateIntent = new Intent();
updateIntent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
updateIntent.putExtra(myWidgetProvider.WIDGET_IDS_KEY, ids);
PendingIntent pendingIntent = PendingIntent.getBroadcast(
context, 0, updateIntent, PendingIntent.FLAG_UPDATE_CURRENT);
views.setOnClickPendingIntent(R.id.view_container, pendingIntent);
Also implemented an AppWidgetProvider to listen to widgets' ID changes (APPWIDGET_HOST_RESTORED) but it doesn't get called on my application update.
My next step would be to re-create all widgets after application update, but I really prefer not to do so.
Would appreciate any help!
Solved.
The last thing I wanted to do, was probably the first thing I should have tried.
I moved on to re-creating the widgets and I found that I don't have to fully re-create them, just re-call bindAppWidgetIdIfAllowed() with the same Widget ID I already have.
The method will return true if everything is still OK and if not, the widget may not be installed anymore or you need to trigger its configuration screen.
Certain Android functionality will break if the widget is installed on the SD Card. Try moving it to the device storage and re-test.
make sure you use unique keys with putExtra(MyWidgetProvider.WIDGET_ID_KEY, ids);
Do not use putExtra(AppWidgetManager.EXTRA_WIDGET_IDS, ids);
I'm developing a widgets app and the first hurdle I stumbled upon was letting the user choose from different layouts through a configuration activity and placing only one one widget in the widgets tab.
I solved this by creating different layouts for the widget and registering only one receiver and one provider. In the configuration activity, the user chooses from a carousel and I used a switch statement to set the proper layout, like this:
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(getBaseContext());
switch (carousel.getSelectedItemPosition()){
case 1:
RemoteViews views = new RemoteViews(getBaseContext().getPackageName(),
R.layout.first);
appWidgetManager.updateAppWidget(mAppWidgetId, views);
break;
case 2:
RemoteViews views2 = new RemoteViews(getBaseContext().getPackageName(),
R.layout.second);
appWidgetManager.updateAppWidget(mAppWidgetId, views2);
break;
That was OK and I got the results I wanted, however, now I'm facing a new problem which is that I want to set an OnClick event for the widget witch will toggle between the current layout and another one, the problem here is that I can't get the layout the user chose for this specific instance of the widget as I have to define the layout I want to edit at the widget provider before doing any thing, like this:
RemoteViews views2 = new RemoteViews(context.getPackageName(),
R.layout.second);
I searched for a solution and I thought I can use the getLayoutId() method for getting the layout, however, it isn't possible unless you specify the layout yourself.
I'm currently stuck at this point, any help is highly appreciated. Thanks
Well this is driving me crazy. I have developed an App-widget. Everything is working fine.
I have a configuration activity which launches every time a widget is added on the home screen and works beautiful. I save the user settings per widget id etc.
The widget has some buttons, one of them launches an activity with about information, the "About Activity".
The "About Activity" has a button which I want to use to launch the configuration activity for the widget id that launched the "About Activity". The reason I want to do that is because I want the user to be able to configure the contents of any instance of my widget without having it removed and added again (in order to launch the configuration activity).
The configuration activity needs the AppWidgetManager.EXTRA_APPWIDGET_ID in order to make the job (save the user settings for this specific widgetid) so I must somehow pass this extra when I 'm calling it from another activity. The obvious think to do is this:
startActivity(new Intent(context,act_configure.class).putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, ??? ));
Now my question is where is the widgetid? I found a million ways to get the widgetids (the array) but not a single clue on how to get the specific widgetid which launched the "About Activity"
Any help about this will make the hours I spent to find a solution, worth something. Thank you in advance.
p.s. Please forgive my English as they are not my native language...
Thanks to Cory Chaltron here is the solution to my problem.
In the widget provider onUpdate method I should create a "unique" intent to pass to the pending intent which handles the launch of the about activity. Because of the way Android compares Intents, passing the WidgetID in the extras IS NOT ENOUGH, you should also pass it as data to the intent in order to be unique. So here is the code:
Intent aboutIntent = new Intent(cx, act_about.class);
aboutIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, widgetIds[i]);
// Make this unique for this appWidgetId
aboutIntent.setData(Uri.withAppendedPath(Uri.parse("customuri://widget/id/"), String.valueOf(widgetID)));
PendingIntent aboutPendingIntent = PendingIntent.getActivity(cx, 0, aboutIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK), PendingIntent.FLAG_UPDATE_CURRENT);
views.setOnClickPendingIntent(R.id.cmdabout, aboutPendingIntent)
Although I answer my own question I am not accepting it because it is based on Cory's answer. Thank you all for the help...
How are you setting your widget views? I have an app where I iterate over the active widgets and configure set the RemoteView there. You could set your widget id in the onClick you are attaching to the "About" button.
final AppWidgetManager widgetManager = AppWidgetManager.getInstance(this);
final ComponentName widgetName = new ComponentName(this, WidgetProvider.class);
final int[] widgetIds = widgetManager.getAppWidgetIds(widgetName);
for (int widgetId : widgetIds) {
final RemoteViews remoteViews = new RemoteViews(getPackageName(), R.layout.widget);
// This is the important part :-D
remoteViews.findViewById(R.id.your_about_button).setOnClickListener(... a listener to start your about activity that puts the widget id in the extra like you suggest in your question ...);
widgetManager.updateAppWidget(widgetId, remoteViews);
}
I have a widget that I have an intent that starts an activity when I click, but I need to get saved Data into the widget, so onEnabled can I start an Activity that will look up the saved data for the activity?
Also an intent I need to set up for the click events... how do I set these up with out first having the config show up?
I still do not know if an activity can be explicitly started without doing something like an onclickevent... but saving data within the widget can be accomplished by using the
Context.getSharedPreferences( String name, int mode );
to get saved prefernces, and by using
nt[] allids = AppWidgetManager .getInstance(context) .
getAppWidgetIds(new ComponentName(context, AwarenessWidget.class));
to get all the IDS
I'm having the hardest time figuring out how to remove home screen AppWidget's programmatically (i.e. without the user actually dragging one into the trash). As an example, consider an app that can have multiple accounts, with any number of widgets for each account - once an account is removed, widget should be deleted as well.
I've tried following an obscure example from http://www.netmite.com/android/mydroid/cupcake/frameworks/base/services/java/com/android/server/AppWidgetService.java, but that doesn't seem to even trigger OnDeleted, much less remove the AppWidget from the home screen.
Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_DELETED);
intent.setComponent(info.componentName); // references AppWidgetProvider's class
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, widgetId);
sendBroadcast(intent);
Does anyone have any advice on how this can be accomplished? An example would be the bee's knees. Thanks.
You cannot add or remove app widgets from the home screen. Only the user can do that.
Any app widgets tied to a deleted account could show a different account, or adopt some "(account deleted)" look that would trigger the user to get rid of the app widget or reconfigure it.
I'm pretty sure this should work:
int[] appWidgetIds = appWidgetManager.getAppWidgetIds(new ComponentName("com.example",
"com.example.Widget"));
AppWidgetHost host = new AppWidgetHost(ctx, 0);
host.deleteAppWidgetId(appWidgetIds[0]);