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POhow use button in homescreen widget like an activity
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  1. POhow use button in homescreen widget like an activity
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    copied!<p>I have a widget with button , text View and DataBase. the data base already have some data the textView show the first data from database when I click on the button I want the text view changed and show the next data for example my DB is like this : </p> <pre><code> {(id=1,name="First")(id=2,name="second")(id=3,name="third")} textview="First" </code></pre> <p>after click on button</p> <pre><code> textview="second" </code></pre> <p>this is my code</p> <pre><code>@Override public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { super.onUpdate(context, appWidgetManager, appWidgetIds); for(int i=0;i&lt;appWidgetIds.length;i++){ int appWidgetId=appWidgetIds[i]; ArrayList&lt;String&gt; list = new ArrayList&lt;String&gt;(); DataBaseHelper db = new DataBaseHelper(context); RemoteViews(context.getPackageName(),R.layout.activity_main); RemoteViews rmtview = new RemoteViews(context.getPackageName(),R.layout.widget); list=db.getData(1); String s=list.get(GET) list=db.getData(1); rmtview.setTextViewText(R.id.textView1, s); db.close(); </code></pre> <p><strong>EDIT:</strong></p> <p>appwidet provider</p> <pre><code>public class widget extends AppWidgetProvider { public static String MyACTION = "MyAction"; @Override public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { // TODO Auto-generated method stub super.onUpdate(context, appWidgetManager, appWidgetIds); RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget); remoteViews.setOnClickPendingIntent(R.id.button3, buildButtonPendingIntent(context)); for(int i=0;i&lt;appWidgetIds.length;i++){ int appWidgetId=appWidgetIds[i]; ArrayList&lt;String&gt; list = new ArrayList&lt;String&gt;(); DataBaseHelper db = new DataBaseHelper(context); RemoteViews rmtview = new RemoteViews(context.getPackageName(),R.layout.widget); list=db.getData(1); String s=list.get(0); rmtview.setTextViewText(R.id.textView1, s); db.close(); /////////////////////// /////////////////////// appWidgetManager.updateAppWidget(appWidgetId, rmtview); // RemoteViews un = new RemoteViews(context.getPackageName(),R.layout.widget); } } public static PendingIntent buildButtonPendingIntent(Context context) { Log.d("me","pending entent launched"); Intent intent = new Intent(); intent.setAction("pl.looksok.intent.action.CHANGE_TEXT"); return PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); } public static void pushWidgetUpdate(Context context, RemoteViews remoteViews) { ComponentName myWidget = new ComponentName(context, widget.class); Log.d("me","push launched"); AppWidgetManager manager = AppWidgetManager.getInstance(context); manager.updateAppWidget(myWidget, remoteViews); } } </code></pre> <p>MyWidgetIntentReceiver.java</p> <pre><code>public class MyWidgetIntentReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { Log.d("me", "OnRecive ..."); if(intent.getAction().equals("pl.looksok.intent.action.CHANGE_TEXT")){ updateWidgetPictureAndButtonListener(context); } } public static void updateWidgetPictureAndButtonListener(Context context) { Log.d("me", "update widget... "); RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget); // ..Get Text from DB // remoteViews.setTextViewText(R.id.textView1, "...text"); //REMEMBER TO ALWAYS REFRESH YOUR BUTTON CLICK LISTENERS!!! remoteViews.setOnClickPendingIntent(R.id.button3, widget.buildButtonPendingIntent(context)); widget.pushWidgetUpdate(context.getApplicationContext(), remoteViews); } } </code></pre> <p><strong>Edit2</strong></p> <p>I removed every things </p> <pre><code> public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { // TODO Auto-generated method stub super.onUpdate(context, appWidgetManager, appWidgetIds); RemoteViews remoteViews = new RemoteViews(context.getPackageName(),R.layout.widget); remoteViews.setOnClickPendingIntent(R.id.button3, buildButtonPendingIntent(context)); appWidgetManager.updateAppWidget(appWidgetIds, remoteViews); } </code></pre>
 

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