Hello friends I am trying to update a widget every user changes the text of texview Anyone can tell me how to do that? I do not know how to do it.
public class MyWidget extends AppWidgetProvider {
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
super.onReceive(context, intent);
if (intent.getAction().equals(MyService.NEW_DATA)) {
RemoteViews remote = new RemoteViews(context.getPackageName(), R.layout.widget_layout);
remote.setTextViewText(R.id.txtValue, text)
ComponentName widget = new ComponentName(context, MyWidget.class);
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
appWidgetManager.updateAppWidget(widget, remote);
}
}}
I think the problem is that you call
super.onReceive(context, intent);
Try not calling it. Everything else looks fine.
Related
Here i have made one widget and added its click listener where i'm starting one service.It works perfectly.But once user force stops application from appinfo my widget's click is not responding.I m not getting why this is happening.Help on this will be appreciated.Thank you
My app widget class code:
MyWidget.java:
public class MyWidget extends AppWidgetProvider {
static Context cont;
static SharedPreferences preferences;
static void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
int appWidgetId) {
cont = context;
Intent intent2 = new Intent();
intent2.setAction("....");
PendingIntent pendingIntent = PendingIntent.
getBroadcast(context, 0,
intent2, PendingIntent.FLAG_UPDATE_CURRENT);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.my_widget);
views.setOnClickPendingIntent(R.id.appwidget_text, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetId, views);
}
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
// There may be multiple widgets active, so update all of them
for (int appWidgetId : appWidgetIds) {
updateAppWidget(context, appWidgetManager, appWidgetId);
}
}
#Override
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
context.startService(new Intent(context, MyService.class));
}
#Override
public void onEnabled(Context context) {
.................. }
#Override
public void onDisabled(Context context) {
.................}
Always use an explicit Intent whenever possible. Your code would not work on Android 8.0 and higher, where implicit broadcasts are banned. And an explicit Intent can move your app out of the stopped state.
I followed these steps: https://stackoverflow.com/a/18236800/824963 to make my broadcastreceiver work.
Actually all alarmmanagers are working fine, but each time onReceive is called all widget are updated with the same data
public class AlarmManagerBroadcastReceiver extends BroadcastReceiver
{
#Override
public void onReceive(final Context context, Intent intent)
{
final String address = intent.getStringExtra("mykey");
...
final RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget);
// downloading data
...
// decoding data
...
remoteViews.setTextViewText(R.id.mykey, newvalue);
ComponentName thiswidget = new ComponentName(context, AppWidgetProvider.class);
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
appWidgetManager.updateAppWidget(thiswidget, remoteViews);
}
}
I am using asynctask to do my feature function and getting the values there. But my text view is not getting updated, though my log statements giving me the result.
I am not using custom intent here, just the basic one.
Here are my code snippets:
public class ListViewWidget extends AppWidgetProvider{
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
super.onUpdate(context, appWidgetManager, appWidgetIds);
updateViews = new RemoteViews(context.getPackageName(), R.layout.list_layout);
thisWidget = new ComponentName(context, ListViewWidget.class);
FetchTask fetchTask=new FetchTask();
AppWidgetManager.getInstance(context.getApplicationContext());
fetchTask.execute();
}
//FetchTask
public static class FetchTask extends AsyncTask<URL,Integer,String> implements ServerRequestEnvironment{
protected String doInBackground(URL... arg0) {
//logic part and stuff not entered
//This is the end part that returns me the result, which is not getting printed to text view.
String name="";
int i = new Random().nextInt(27);
storeObject=store.getStores().getItems().get(i).getStore();
name= storeObject.getName();
resultStuff(name);
Log.i("StoreTag","storeval:"+name); //returns name of the 0th item
return name;
}//end of doInBackground() method
protected void onPostExecute(String name) {
// TODO Auto-generated method stub
Intent intent=new Intent("android.appwidget.action.APPWIDGET_UPDATE");
PendingIntent pendingIntent=PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
updateViews.setTextViewText(R.id.text_view,resultStuff(name));
updateViews.setOnClickPendingIntent(R.id.next, pendingIntent);
AppWidgetManager manager = AppWidgetManager.getInstance(context.getApplicationContext());
manager.updateAppWidget(thisWidget, updateViews);
}//end of PostExecute
}//End of async task class
}//end of ListViewWidget class
What I am missing here? Please please guide..
UPDATE: Is this fine? Async task to be called both in onReceive and onUpdate??
#Override
public void onReceive(Context context,Intent intent){
if(intent.getAction().equals("android.appwidget.action.APPWIDGET_UPDATE")){
fetchTask.execute();
}
}
Update 2:
public static String name="New text"
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
super.onUpdate(context, appWidgetManager, appWidgetIds);
updateViews = new RemoteViews(context.getPackageName(), R.layout.list_layout);
//-----------NEW LINE ADDED-------------
updateViews.setTextViewText(R.id.text_view,name);
thisWidget = new ComponentName(context, ListViewWidget.class);
//Now in onPostExecute()
//AppWidgetManager manager = AppWidgetManager.getInstance(context.getApplicationContext());
//manager.updateAppWidget(thisWidget, updateViews);
fetchTask.execute();
}
protected void onPostExecute(String name) {
// TODO Auto-generated method stub
Intent intent=new Intent("android.appwidget.action.APPWIDGET_UPDATE");
PendingIntent pendingIntent=PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
updateViews.setTextViewText(R.id.text_view,name);
updateViews.setOnClickPendingIntent(R.id.next, pendingIntent);
AppWidgetManager manager = AppWidgetManager.getInstance(context.getApplicationContext());
manager.updateAppWidget(thisWidget, updateViews);
}
#Dororo Didn't get you. Please explain. I have created public var in my class:
public static Context context;
public static RemoteViews updateViews;
public static ComponentName thisWidget;
FetchTask fetchTask=new FetchTask();
Have you tried using this:
TextView textView = (TextView) findViewById(R.id.textView);
textView.setText(toThis);
Are you sure you're not overwriting the updated value when you create new ComponentName(context, ListViewWidget.class);? onUpdate will be called when you call manager.updateAppWidget(thisWidget, updateViews); You shouldn't need to use static, you just need an initialisation boolean which is set to true after you've created the objects for the first time.
Solved my exception and error. Was setting context to be null. I assigned context with the application context.
No matter what I do I cannot trigger anything by clicking on a button on a widget. Here is some code I wrote, can anyone tell me why onReceive isn't called when the widget button is clicked?
Furthermore, I want to run a function on button click... based on the code below do I have the right idea?
public class WidgetProvider extends AppWidgetProvider {
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
Intent intent = new Intent(context, WidgetProvider.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
views.setOnClickPendingIntent(R.id.toggleButton, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds[0], views);
}
#Override
public void onReceive(Context context, Intent intent) {
// why don't i get here with the button click?
Log.e("!", intent.getAction());
}
}
Try to call the super method of onReceive first.
#Override
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
// why don't i get here with the button click?
Log.e("!", intent.getAction());
}
Worked just fine for me!
My widget consists two relative layouts. I have made both the layouts clickable. Following are the id's of the layout:
android:id="#+id/upper_layout"
android:id="#+id/bottom_layout"
Now, what I need is that if a user clicks on the upper_layout, bottom_layout should be invisible.
Here, is what I have tried so far but it's not working. Can u check what I am doing wrong?
Or, maybe suggest some other ways to achieve this.
Code :
public class BobsWidget extends AppWidgetProvider {
public static String ACTION_WIDGET_RECEIVER = "Clicked";
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
R.layout.main);
Intent active = new Intent(context, BobsWidget.class);
active.setAction(ACTION_WIDGET_RECEIVER);
PendingIntent actionPendingIntent = PendingIntent.getBroadcast(context,
0, active, 0);
remoteViews.setOnClickPendingIntent(R.id.upper_layout,
actionPendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds, remoteViews);
}
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
// check, if our Action was called
if (intent.getAction().equals(ACTION_WIDGET_RECEIVER)) {
RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
R.layout.main);
remoteViews.setViewVisibility(R.id.bottom_layout, View.INVISIBLE);
}
super.onReceive(context, intent);
}
}
You have several inbuilt widget features available in Anndroid 3.0 or more versions.Check this link
I think you forgot to update the widget.
Have you tried something like this ?
remoteViews.setViewVisibility(R.id.bottom_layout, View.INVISIBLE);
final ComponentName provider = new ComponentName(context, this.getClass());
appWidgetManager.updateAppWidget(provider, views);