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.
Related
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);
I am developing an Android app with a homescreen widget, which is an imageButton, and i want the image of the button to change after its been pressed. I have tried selector in an xml file, to change the image of the button, but it changes it only when it is pressed, but it goes back when its released.
I want it to change image after it was pressed and when the code inside the WidgetProvider is executed, it changes the image back to the default one.
I tried to do it programatically(in onRecieve() method), I guess it should be something with RemoteViews but whatever i try, it doesnt work.
Could someone help my with this? I saw many people asking about it, but most of the posts were either pretty old or the solutions were not working for me.
Thank you :)
Normally you'd set the image on the surface of the ImageButton using the setImageResource method (ImageButton inherits it from ImageView), but that method isn't available for RemoteViews.
RemoteViews offers a corresponding setImageViewResource method that does what you want (as well as setImageViewBitmap and setImageViewUri depending on how you'd like to provide the image data).
The code to set the image (say, within your BroadcastReceiver's onReceive method) would look something like this:
#Override
public void onReceive(Context context, Intent intent) {
int appWidgetId = intent.getIntExtra("appWidgetId", -1);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.main);
views.setImageViewResource(R.id.imageButton1, R.drawable.awesome_image);
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
appWidgetManager.updateAppWidget(appWidgetId, views);
}
Note that the code above assumes you've added the id of the widget to be manipulated as an extra to the broadcast intent (wrapped in a PendingIntent that is sent when the user clicks the ImageButton) using the key "appWidgetId". You'll most likely want to do that in the onUpdate method of your AppWidgetProvider, like so:
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
for (int i = 0; i < appWidgetIds.length; i++) {
int appWidgetId = appWidgetIds[i];
Intent intent = new Intent ("YourActionHere");
intent.putExtra("appWidgetId", appWidgetId);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, i, intent, 0);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.main);
views.setImageViewResource(R.id.imageButton1, R.drawable.initial_image);
views.setOnClickPendingIntent(R.id.imageButton1, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
A simple but not elegant way is:
boolean isButtonSelected = false;
..
button.setOnClickListener(buttonListener);
..
OnClickListener buttonListener = new OnClickListener() {
#Override
public void onClick(View arg0) {
if(isButtonSelected ){
isButtonSelected = false;
button.setBackgroundResource(R.drawable.buttonOff); // or setImageResource(..);
} else{
isButtonSelected = true;
button.setBackgroundResource(R.drawable.buttonOn);
}
}
};
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) {
...
}
Is there a way to get value from textView item inside widget ? I have a 2 textViews in my widget layout and on my widget update I want to set new value to one of them and I don't want to change value of the second one. For now when I set value like this
remoteViews.setTextViewText(R.id.text1, newValue");
widgetManager.updateAppWidget(thisWidget, remoteViews);
this is setting value of the second textView to default value defined in layout.
How to get it to not change the value of the second textView, or how to get value to the second textView to be able to adjust to the same ?
It is my understanding that whenever onUpdate is called, it updates all of the widgets, so what I do is use SharedPreferences, so when I set the TextView initially I save the textView text to sharedprefs and then I get the preference when I update. And I do this all within a for loop.
Here is my onUpdate:
#Override
public void onUpdate(Context context, AppWidgetManager awm, int[] appWidgetIds){
SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(context);
int appWidgetId;
for (int i=0;i<appWidgetIds.length;i++){
appWidgetId = appWidgetIds[i];
String widgetLabel = pref.getString("label"+appWidgetId, "");
// I previously saved "widgetLabel" when I created the widget in my
// ConfigurationActivity
M.updateWidget(context, appWidgetId, widgetLabel);
// I put this in another class so it's more manageable.
}
}
in my Class M:
public static void updateWidget(Context context, int appWidgetId, String widgetLabel){
SharedPreferences.Editor editor = PreferenceManager.getDefaultSharedPreferences(context).edit();
RemoteViews updateViews;
int layoutId = R.layout.layout;
int viewId = R.id.layout;
updateViews = new RemoteViews(context.getPackageName(),
layoutId);
updateViews.setTextViewText(R.id.widgetlabel, widgetLabel);
editor.putString("label"+appWidgetId, widgetLabel);
editor.commit();
Intent intent = new Intent(context, ClickAction.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, appWidgetId, intent, PendingIntent.FLAG_UPDATE_CURRENT);
updateViews.setOnClickPendingIntent(viewId, pendingIntent);
AppWidgetManager.getInstance(context).updateAppWidget(appWidgetId, updateViews);
}
I hope that makes sense. Let me know if I need to elaborate on anything.