I’m developing an android widget. In the widget I have a text field and two buttons. When I press button1 I want the text field to show a certain text, like “one,” and if I click button2, the text field will show like “2.”
the onUpdate() looks like this :
#Override public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds){ super.onUpdate(context, appWidgetManager, appWidgetIds);
remoteViews = new RemoteViews(context.getPackageName(), R.layout.activity_main);
Intent intent = new Intent(context, CalculatorReceiver.class);
intent.setAction(ACTION_WIDGET_RECEIVER);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds);
PendingIntent actionPendingIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
remoteViews.setOnClickPendingIntent(R.id.one, actionPendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds, remoteViews); }
and the onReceive() method looks like this:
#Override public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
if(intent.getAction().equals(ACTION_WIDGET_RECEIVER)){
Toast.makeText(context, "Hi I'm 1", Toast.LENGTH_LONG).show();
}}
Now, in the widget, I’m only able to show a Toast when a button pressed, but I want to get the textView and change its value. How do I get and change the textView?
You can't get the values of views from your widget.
You can update TextView of the widget by using RemoteViews
remoteViews.setTextViewText(R.id.text_view_id, "Your text");
Please try to add the below lines in onReceive()
remoteViews.setTextViewText(R.id.widget_appNameView, "text view updated");
ComponentName componentName = new ComponentName(context,
WidgetProvider.class);
AppWidgetManager.getInstance(context).updateAppWidget(componentName, remoteViews);
Related
In the RemoteViews for an AppWidget I have an AdapterViewFlipper which is supposed to flip when the user clicks a button in the AppWidget. According to the official documentation this should be done by calling the showNext on the RemoteViews. The AppWdiget should then be updated with partiallyUpdateAppWidget which even has the showNext() function as an example in the documentation. I've tried implementing this and I'm most likely making some silly mistake that I can't seem to figure out.
public class WidgetProvider extends AppWidgetProvider {
public static final String NEXT = "next";
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
for (int appWidgetId : appWidgetIds) {
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_layout);
Intent nextIntent = new Intent(context, WidgetProvider.class);
nextIntent.setAction(NEXT);
views.setOnClickPendingIntent(R.id.next_button,
PendingIntent.getBroadcast(context, appWidgetId, nextIntent,
PendingIntent.FLAG_UPDATE_CURRENT));
views.setRemoteAdapter(R.id.view_flipper, new Intent(context,
WidgetRemoteViewService.class));
appWidgetManager.updateAppWidget(appWidgetId, views);
}
super.onUpdate(context, appWidgetManager, appWidgetIds);
}
#Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals(NEXT)) {
RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
R.layout.widget_layout);
remoteViews.showNext(R.id.view_flipper);
AppWidgetManager.getInstance(context).partiallyUpdateAppWidget(
AppWidgetManager.getInstance(context).getAppWidgetIds(
new ComponentName(context, WidgetProvider.class)),
remoteViews);
}
super.onReceive(context, intent);
}
}
When replacing partiallyUpdateAppWidget with updateAppWidget the next button is working until the orientation changes or the phone goes to sleep which forces a redraw of the last stored RemoteViews. This leads me to believe the mistake I'm making has to do with partial update but I can't figure out what I'm doing wrong.
In which API level are you testing?
Maybe the problem with withpartiallyUpdateAppWidget is related to this open issue issuetracker.google.com/issues/37136552
I post a broadcast to update my widget and its onUpdate function is called, I can see it in the logs, but the text remains unchanged - apart from the 1st call to onUpdate, when the widget is created.
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
Log.d("WIDGET", "onUpdate");
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_home);
views.setTextViewText(R.id.text, new Random().nextInt() + "x");
Intent intent = new Intent(context, InfoActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
// Get the layout for the App Widget and attach an on-click listener
// to the button
views.setOnClickPendingIntent(R.id.text, pendingIntent);
appWidgetManager.partiallyUpdateAppWidget(appWidgetIds, views);
Log.d("WIDGET", "updated");
}
you need store the appWidgetId when it create , when you want to update it.
call appWidgetManager.updateAppWidget
im not sure why partiallyUpdateAppWidget
not work. you can read the docs
appWidgetManager.partiallyUpdateAppWidget(appWidgetIds, views);
HI i am having right trouble handling a click on a widget! I have got it so I can print a message to logcat when it is clicked on but I cant say change the text of a textview or show a button.
My main goal is to get a button to become visible when clicking on the widget and from here open a settings menu or share options for social media.
Here is my On Update code (DaysTillWidget.class)
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
for (int appWidgetId : appWidgetIds) {
setAlarm(context, appWidgetId, UPDATE_RATE);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.main);
Intent clickIntent = new Intent(context, DaysTillWidget.class);
clickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, appWidgetId, clickIntent, 0);
views.setOnClickPendingIntent(R.id.imageView2, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetId, views);
super.onUpdate(context, appWidgetManager, appWidgetIds);
}
}
and here is the onRecieve code in the same Class
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction()==null) {
Bundle extras = intent.getExtras();
if(extras!=null) {
int widgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
// do something for the widget that has appWidgetId = widgetId
System.out.println("is this it?" + widgetId);
RemoteViews RemoteViews = new RemoteViews(context.getPackageName(), R.layout.main);
}
}
else {
super.onReceive(context, intent);
}
}
Any ideas on how I can get to my main goal?! I have spent hours reading peoples posts with similar problems but just cant get anything to work!
Im not sure if my project setup it correct or not but so far I have got everything else working? I have a service Class and a config class.
If I cant get the button to show and hide I would like to relaunch the config activity with the sharedprefernces for that widgetId
If you need to see any more code please let me know
Thanks in advance
I have a widget and I want it to make a phonecall to a particular number when the user clicks on the widget. How do i do this? Please help.
I was able to get it working with this code:
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
Log.d(LOG_TAG, "onUpdate(): ");
for (int appWidgetId : appWidgetIds) {
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:"+number));
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, callIntent, 0);
// Get the layout for the App Widget and attach an on-click listener to the button
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.caller);
views.setOnClickPendingIntent(R.id.callButton, pendingIntent);
// Tell the AppWidgetManager to perform an update on the current App Widget
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
public static Intent newPhoneCallIntent(String phoneNumber){
Intent callintent = new Intent(Intent.ACTION_DIAL);
callintent.setData(Uri.parse("tel:"+phoneNumber));
return callintent;
}
startActivity(newPhoneCallIntent("5555555555"));
I have a widget that you press and it then it will update the text on the widget. I have set an on click listener to launch another activity to perform the text update, But for some reason it only works temporarily and then it will become unresponsive and not do anything when pressed. Does anyone know why it might be doing that? i have posted my widget code below in case it is helpful.
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,int[] appWidgetIds) {
thisWidget = new ComponentName(context, MemWidget.class);
Intent intent = new Intent(context, updatewidget.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
// Get the layout for the App Widget and attach an on-click listener to the button
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
views.setOnClickPendingIntent(R.id.ImageButton01, pendingIntent);
// Tell the AppWidgetManager to perform an update on the current App Widget
appWidgetManager.updateAppWidget(thisWidget, views);
}
#Override
public void onReceive(Context context, Intent intent)
{
appWidgetManager = AppWidgetManager.getInstance(context);
remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget);
thisWidget = new ComponentName(context, MemWidget.class);
// v1.5 fix that doesn't call onDelete Action
final String action = intent.getAction();
if (AppWidgetManager.ACTION_APPWIDGET_DELETED.equals(action)) {
final int appWidgetId = intent.getExtras().getInt(
AppWidgetManager.EXTRA_APPWIDGET_ID,
AppWidgetManager.INVALID_APPWIDGET_ID);
if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) {
this.onDeleted(context, new int[] { appWidgetId });
}
}
else
{
super.onReceive(context, intent);
}
}
Here is code that is called from my activity
thisWidget = new ComponentName(this, MemWidget.class);
appWidgetManager = AppWidgetManager.getInstance(this);
remoteViews = new RemoteViews(this.getPackageName(), R.layout.widget);
//do work
remoteViews.setTextViewText(R.id.ImageButton01,"setting text here");
appWidgetManager.updateAppWidget(thisWidget, remoteViews);
The onUpdate method there doesn't update any of the data in the RemoteViews other than the PendingIntent, so if that's ever called, the widget will revert to the state defined in R.layout.widget.
Do you have the code that calls updateAppWidget after the user interaction? That might help too.
Also, if the update is inline and doesn't require any UI, you don't need to launch an activity to do that update. It's more efficient and won't disrupt the back stack if your PendingIntent is for a broadcast receiver instead, using PendingIntent.getBroadcast. You can use the same BroadcastReceiver that is your app widget provider. You don't need another one.
Update: (I can't reply below because the text is too long)
I'd make a function like this, and call it from your activity from onUpdate(). You'll need to save text somewhere so you can also pass it in from onUpdate(). Otherwise it will revert the text to the default in R.layout.widget.
void updateWidget(Context context, CharSequence text) {
RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
remoteViews.setOnClickPendingIntent(R.id.ImageButton01, pendingIntent);
remoteViews.setTextViewText(R.id.ImageButton01, text);
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
ComponentName thisWidget = new ComponentName(context, MemWidget.class);
appWidgetManager.updateAppWidget(thisWidget, remoteViews);
}