Good Day! I want to add text from inside application to widget, i have a main activity and it has list view and lots of text contents and it has a button to add the text to widget via shared preference, it's works fine when i close the widget and recreate it only, otherwise it's not automatically refresh.if anyone know; how to solve this please help me. here i attached the widget code below.
public class WidgetMaster extends AppWidgetProvider {
static void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
int appWidgetId) {
Intent intentHome = new Intent(context, MainActivity.class);
PendingIntent pendingIntentHome = PendingIntent.getActivity(context, 0, intentHome, 0);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_master);
views.setOnClickPendingIntent(R.id.wid_home, pendingIntentHome);
final SharedPreferences sharedPreferencestoWi = context.getSharedPreferences(String.valueOf(R.string.addTextToWidgetPref), MODE_PRIVATE);
String forWidget = sharedPreferencestoWi.getString("textToWidget", "");
String dum = "add from reading";
if(forWidget.equals("")){
views.setTextViewText(R.id.dum_appwidget_text, dum);
appWidgetManager.updateAppWidget(appWidgetId, views);
} else {
views.setTextViewText(R.id.appwidget_text, forWidget);
views.setViewVisibility(R.id.appwidget_text, 0);
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 onEnabled(Context context) {
// Enter relevant functionality for when the first widget is created
}
#Override
public void onDisabled(Context context) {
// Enter relevant functionality for when the last widget is disabled
}
}
How do you update the widget from mainActivity?
In the widget configuration file you can specify a fixed update interval. The smallest update interval is 1800000 milliseconds (30 minutes).
But its better to update widget programmatically, to do this You should send a broadCast to update widget and use a
method like alarmManager or Handler for a repeating task for example you can use the following broadCast to update widget form mainActivity:
Intent intent = new Intent(this, WidgetMaster.class);
intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
int[] ids = AppWidgetManager.getInstance(getApplication())
.getAppWidgetIds(new ComponentName(getApplication(),WidgetMaster.class));
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, ids);
sendBroadcast(intent);
Related
My app is an Android widget. It adds a button on home Screen; if a user clicked in this Button it will open a window. This window is waiting an user input. It has to write a value and this value will change the text in the Button.
The problem is if the user creates many widgets and clicked on the Button in any widget and write a value the value will be set only on the last created widget.
How can I make the Button change text on his widget?
And this is my code
public class Widget_note extends AppWidgetProvider {
#Override
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
}
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
the_context = context ;
the_appWidgetManager = appWidgetManager ;
the_appWidgetIds = appWidgetIds ;
Intent open_activity087 = new Intent();
open_activity087.setClassName("syr.hamza.app.mynotes_v2", "syr.hamza.app.mynotes_v2.SetWidgetValue");
open_activity087.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(open_activity087);
/*this will be open activity Immediately after creating widget to enter a value
* and will calling a set_value_in_widget() Function (at Below) with the value
* and this don't have any problem*/
Intent intent2 = new Intent(context, EditWidgetValue.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent2, 0);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_layout);
views.setOnClickPendingIntent(R.id.widget_button, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds,views);
/* this will be open activity if clicked on the button and get the value from user
* and calling set_value_in_widget() Function
* here is a problem */
}
public static Context the_context ;
public static AppWidgetManager the_appWidgetManager ;
public static int[] the_appWidgetIds ;
public static void set_value_in_widget(String value) {
RemoteViews views2 = new RemoteViews(the_context.getPackageName(), R.layout.widget_layout);
views2.setTextViewText( R.id.widget_button , value ) ;
the_appWidgetManager.updateAppWidget(the_appWidgetIds, views2 );
}
}
Keep all ids after a widget instance creating into SharedPreferences and on the OnUpdate read it from preferences and use instead the_appWidgetIds. Also you will need to remove them from preferences on onDelete.
I want my activity "but1" to update the text on my widget button through button in my but1 activity. I've tried and it shows no error but still the widget doesn't updates. Is it something Im missing in manifest file?Moreover the log cat also doesnt show any problem
following is my code in But1.class
et1.setOnClickListener(new OnClickListener() {
Intent in=new Intent();
Bundle extras=in.getExtras();
if(extras!=null)
{
awID=extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID,AppWidgetManager.INVALID_APPWIDGET_ID);
}
aw=AppWidgetManager.getInstance(context);
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
RemoteViews rv=new RemoteViews(context.getPackageName(),R.layout.activity_main);
rv.setTextViewText(R.id.button1, "Mughazf,f,jvnl");
aw.updateAppWidget(awID, rv);
Intent result=new Intent();
result.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, awID);
setResult(RESULT_OK,r
esult);
and my widget is:
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
// TODO Auto-generated method stub
super.onUpdate(context, appWidgetManager, appWidgetIds);
final int N = appWidgetIds.length;
for (int i=0; i<N; i++) {
int appWidgetId = appWidgetIds[i];
Intent intent = new Intent(context, But1.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.activity_main);
views.setOnClickPendingIntent(R.id.button2, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
}
Problem should be with the Widget App ID . You need to keep remembering the Widget ID to update it later.
Your Widget Provider onUpdate() method should store the Widget id in shared preference or database
I am using shared preference here,
SharedPreferences prefs = context.getSharedPreferences("private preference", Context.MODE_PRIVATE);
// here i am saving one widget id. change your logic to store all the widget id's
prefs.edit().putInt("WidgetId",appWidgetId).commit();
Then when the Activity is launched and button clicked. You can update the widget layout like this
First Read the Widget ID from shared Preference
SharedPreferences prefs = getSharedPreferences("private preference", Context.MODE_PRIVATE);
int awID = prefs.getInt("WidgetId", AppWidgetManager.INVALID_APPWIDGET_ID);
Then, create the instance of RemoteView and set the new text to the TextView
RemoteViews rv=new RemoteViews(getPackageName(),R.layout.widget_layout);
rv.setTextViewText(R.id.textView1, "Some one updated Me");
Then , get the instance of AppWidget Manager
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(getApplicationContext());
And, Finally update the Widget with new RemoteView Layout.
appWidgetManager.updateAppWidget(awID, rv);
So, awID - is the Widget Id what we got from onUpdate method.
This should work. Let me know if you see any issue.
I am trying to make a widget for my app, and I want it to be with a buttonm progress bar and text view, which would later be changed, so I need to somehow work with the views themselves, like I can from an activity, show a view, hide a view, change a button background etc...
I tried tweaking with the sample code from the Android documentations, but I can only start an activity with this
public class WidgetProvider extends AppWidgetProvider {
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
super.onUpdate(context, appWidgetManager, appWidgetIds);
final int N = appWidgetIds.length;
for (int i = 0; i < N; i++) {
int appWidgetId = appWidgetIds[i];
Intent intent = new Intent(context, ActivityMain.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_layout);
views.setOnClickPendingIntent(R.id.sync_button, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
#Override
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
}
}
Does the widget need to be connected to an activity in order to make actions (connect to the internet, write in the database, write in the objects of the apps instance (if there is one))? And can I work with views the way I am asking?
Outside of setting on-click PendingIntents on views, there isn't much you can do inside of a widget. The standard recipe is:
Make a PendingIntent that sends a broadcast (PendingIntent.getBroadcast()) and set it on the appropriate view in your widget.
In the BroadcastReceiver that receives the intent, you update the widget to show a spinner and start a Service to do whatever long-running work you want to do (e.g connect to the internet).
Once that work is done, you can update your widget again and remove the spinner.
I created a class that downloads some text from the internet and I want to take that text and update a TextView in my widget. I know that the event (OnDownloadCompleteListener) is getting triggered because I'm Logging it but I can't figure out how to update the TextView from within that event. I know it's a newbie mistake, just not sure what I'm missing.
public class Widget extends AppWidgetProvider{
InternetText internettext; //Handles downloading the text from the internet
RemoteViews views;
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
final int N = appWidgetIds.length;
// Perform this loop procedure for each App Widget that belongs to this provider
for (int i=0; i<N; i++) {
int appWidgetId = appWidgetIds[i];
// Create an Intent to launch ExampleActivity
Intent intent = new Intent(context, MainActivity.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 = new RemoteViews(context.getPackageName(), R.layout.widget);
views.setOnClickPendingIntent(R.id.tvWidgetVerse, pendingIntent);
internettext = new InternetText(context);
internettext.setOnDownloadCompleteListener(new OnDownloadCompleteListener() {
#Override
public void onEvent() {
TheText thetext = internettext.downloadedText(); //The text object
Log.i("", "Widget Text Downloaded " + thetext.getText()); //This fires so I know we've downloaded the text
TextStyling textStyle = new TextStyling();
//*****THIS IS WHERE I'M HAVING THE PROBLEM********
views.setTextViewText(R.id.tvWidgetText, Html.fromHtml(textStyle.boldWords(thetext.getText()))); //this never updates
}
});
internettext.getText();
// Tell the AppWidgetManager to perform an update on the current app widget
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
}
Ok, I figured it out. I have to call appWidgetManager.updateAppWidget() from within the event. I knew it was a no-brainer...
appWidgetManager.updateAppWidget(appWidgetId, views);
which also means I have to make appWidgetManager and appWidgetId final
public void onUpdate(Context context, final AppWidgetManager appWidgetManager, int[] appWidgetIds) {
...
}
I have a very weird problem with my AppWidget in Android 4.1.1. I'm currently developing a music player application and its widget. Widget must be updated when song changes, player starts and stops. It has a ListView which must be in sync with playlist in application.
Prior to Jelly Bean everything was working fine. After my test device is upgraded from 4.0.3 to 4.1.1, whenever widget is programmatically forced to update, layout of Android's Messaging widget is set to my widget for a few seconds! I also checked this case in emulator with 4.1, which works fine.
I use that piece of code to force my widget to update:
AppWidgetManager man = AppWidgetManager.getInstance(applicationContext);
int[] ids = man.getAppWidgetIds(
new ComponentName(applicationContext, MuzikLargeWidgetProvider.class));
Intent updateIntent = new Intent();
updateIntent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
updateIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, ids);
applicationContext.sendBroadcast(updateIntent);
And here is my onUpdate method
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
this.context = context;
this.appWidgetManager = appWidgetManager;
ComponentName thisWidget = new ComponentName(context,
MuzikLargeWidgetProvider.class);
int[] allWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);
for (int appWidgetId : allWidgetIds) {
Intent svcIntent = new Intent(context, UpdateService.class);
svcIntent.putExtra(WidgetActions.DATA_WIDGET_ID, appWidgetId);
context.startService(svcIntent);
}
super.onUpdate(context, appWidgetManager, appWidgetIds);
}
I'm using a service (UpdateService), which is a static inner class, to update my widget:
public static class UpdateService extends IntentService {
public UpdateService() {
super("UpdateService");
}
#Override
public IBinder onBind(Intent intent) {
return null;
}
public RemoteViews buildUpdate(Context context, int widgetId) {
final RemoteViews views = new RemoteViews(context.getPackageName(),
R.layout.muzikwidget_large);
return views;
}
#Override
protected void onHandleIntent(Intent intent) {
// Build the widget update
RemoteViews updateViews = buildUpdate(this, intent.getIntExtra(WidgetActions.DATA_WIDGET_ID, 0));
// Push update for this widget to the home screen
ComponentName thisWidget = new ComponentName(this, MuzikLargeWidgetProvider.class);
AppWidgetManager manager = AppWidgetManager.getInstance(this);
manager.updateAppWidget(thisWidget, updateViews);
}
}
buildUpdate method does a few more things (setting intents for widget's buttons, setting textviews, etc.) but they are not related with my problem. I'm having this problem on a Asus TF 300 TG tablet (not rooted).
Any help is appreciated.
The problem is resolved. I modified the code piece which I use to force widget to update. This is working:
AppWidgetManager man = AppWidgetManager.getInstance(applicationContext);
int[] ids = man.getAppWidgetIds(
new ComponentName(applicationContext, MuzikLargeWidgetProvider.class));
for (int appWidgetId : ids) {
Intent svcIntent = new Intent(applicationContext, UpdateService.class);
svcIntent.putExtra(WidgetActions.DATA_WIDGET_ID, appWidgetId);
applicationContext.startService(svcIntent);
}
Widget's onUpdate method is not called and UpdateService is invoked directly. It seems like sendBroadcast should be avoided sometimes.
EDIT
If you need to use broadcast to update your widget, this seems to be a proper way to accomplish that:
AppWidgetManager man = AppWidgetManager.getInstance(applicationContext);
int[] ids = man.getAppWidgetIds(
new ComponentName(applicationContext, MuzikLargeWidgetProvider.class));
Intent updateIntent = new Intent(applicationContext, MuzikLargeWidgetProvider.class);
updateIntent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
updateIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, ids);
applicationContext.sendBroadcast(updateIntent);