Hi all,
I am trying to launch an app widget from another application.
On click of a button in an application, the appwidget is receiving the
message i broadcasted.
I have implemented the appwidgetprovider class.
In the appwidgetprovider class, in the onReceive function i am able to
get the broadcasted message.
My broadcast file is:
package com.example.broadcast;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
public class broadcast extends Activity implements
View.OnClickListener {
/** Called when the activity is first created. */
public static final String ACTION_UPDATE_WIDGET =
"Broadcast_Message";
public static final String MESSAGE = "message";
public void onClick(View v) {
sendBroadcast();
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button start = (Button) findViewById(R.id.button);
start.setOnClickListener(this);
}
private void sendBroadcast() {
Log.i("test", "send broadcast");
Intent broadcast = new Intent(this, receiver.class);
broadcast.putExtra(MESSAGE, "Bye");
broadcast.setAction(ACTION_UPDATE_WIDGET);
sendBroadcast(broadcast);
Log.i("test", "after send");
}
}
My appwidget class is as follows:
package com.example.broadcast;
import android.appwidget.AppWidgetHost;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.appwidget.AppWidgetProviderInfo;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
public class receiver extends AppWidgetProvider {
public void onReceive ( Context context,Intent intent ){
//super.onReceive(context,intent );
String action = intent.getAction();
String message="";
//String packagename="";
int appwidgetid;
Log.i("test", "message received");
if( "Broadcast_Message".equals ( action ) ) {
//String message;
Toast.makeText( context, "Broadcast sucessfull...",
Toast.LENGTH_LONG).show();
if ( intent.hasExtra(broadcast.MESSAGE)) {
message =
(String)intent.getCharSequenceExtra(broadcast.MESSAGE);
Toast.makeText( context, message,
Toast.LENGTH_LONG).show();
}
message = message+"in the for loop";
updateSampleWidget( context, appWidgetManager,1,message
);
}
}
private void updateSampleWidget(Context context,AppWidgetManager
appWidgetManager, int widget, String text) {
Log.i("test","In the update sample widget function");
RemoteViews views = new RemoteViews(context.getPackageName
(),R.layout.widget_provider);
views.setTextViewText(R.layout.widget, text);
//Intent intent1 = new Intent(context, broadcast.class);
//PendingIntent pendingIntent = PendingIntent.getActivity
(context, 0,intent1, 0);
//views.setOnClickPendingIntent(R.layout.widget, pendingIntent);
//appWidgetManager.updateAppWidget(widget, views);
}
}
The widget_provider.xml file contains the appwidget resource file.
The widget.xml file contains a textview element only.
The updateSampleWidget function is not getting executed.
Am i doing anything wrong here???
My questions are:
1. Is it possible to start an appwidet from the onReceive function?
2. Is it possible to start an appwidget from another applicaion by
sending and receiving a broadcast message?
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