Android implementation widget Clock sample sharing _android

Configuring Widgets in Androidmanifest.xml Files:

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<manifest xmlns:android= "Http://schemas.android.com/apk/res/android"
Package= "Com.example.widget"
Android:versioncode= "1"
Android:versionname= "1.0" >
<uses-sdk
Android:minsdkversion= "8"
Android:targetsdkversion= "/>"
<application
Android:allowbackup= "true"
android:icon= "@drawable/ic_launcher"
Android:label= "@string/app_name"
Android:theme= "@style/apptheme" >
<receiver android:name= ". Timewidgetprovider ">
<intent-filter>
<action android:name= "Android.appwidget.action.APPWIDGET_UPDATE"/>
</intent-filter>
<meta-data
Android:name= "Android.appwidget.provider"
Android:resource= "@xml/timewidget_info"/>
</receiver>
<service android:name= ". Timerservice "></service>
</application>
</manifest>

II. create an XML directory in the project's res directory, creating a Timewidget_info.xml file with the following contents:

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<?xml version= "1.0" encoding= "UTF-8"?>
<appwidget-provider xmlns:android= "Http://schemas.android.com/apk/res/android"
android:initiallayout= "@layout/time_appwidget"
android:minheight= "40DP"
Android:minwidth= "40DP"
android:updateperiodmillis= "0"/>

Third, in the Layout folder to establish the file Time_appwidget.xml:

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<?xml version= "1.0" encoding= "Utf-8"?>
<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"
Android:layout_width= "Match_parent"
android:layout_height= "Match_parent"
android:orientation= "Vertical"
android:background= "@drawable/rectangle"
>
<textview
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
Android:id= "@+id/textview"
android:text= "Current Time"
/>
</LinearLayout>

Four, in the Drawable folder to establish Rectangle.xml file (this can be omitted, mainly to beautify the TextView control, gradient effect):

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<?xml version= "1.0" encoding= "Utf-8"?>
<shape xmlns:android= "Http://schemas.android.com/apk/res/android"
Android:shape= "Rectangle" >

<!--set radians-->
<corners android:radius= "9DP"/>

<gradient
Android:angle= "270"
Android:endcolor= "#5EADF4"
Android:startcolor= "#B3F0FF"/>
<padding
Android:bottom= "5DP"
android:left= "5DP"
android:right= "5DP"
android:top= "5DP"/>
<stroke
android:dashgap= "1DP"
Android:dashwidth= "10DP"
Android:width= "6DP"
Android:color= "#0000FF"/>
</shape>

Five, the background code implementation:

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Package com.example.widget;

Import Android.appwidget.AppWidgetManager;
Import Android.appwidget.AppWidgetProvider;
Import Android.content.Context;
Import android.content.Intent;

public class Timewidgetprovider extends Appwidgetprovider {
@Override
public void OnUpdate, Appwidgetmanager Appwidgetmanager,
Int[] appwidgetids) {
Super.onupdate (context, Appwidgetmanager, appwidgetids);
}
When a widgets is invoked
public void ondeleted (context context, int[] appwidgetids) {
TODO auto-generated Method Stub
Super.ondeleted (context, appwidgetids);
}
The first time you add a widgets to the desktop, it is invoked, and then the same type widgets is not invoked
public void onenabled {
Context.startservice (New Intent (context, timerservice.class));
}
is called when the last widgets is deleted from the desktop
public void ondisabled {
Context.stopservice (New Intent (context, timerservice.class));
}
}

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Package com.example.widget;

Import Java.text.SimpleDateFormat;
Import Java.util.Date;
Import Java.util.Timer;
Import Java.util.TimerTask;

Import Android.annotation.SuppressLint;
Import Android.app.Service;
Import Android.appwidget.AppWidgetManager;
Import Android.content.ComponentName;
Import android.content.Intent;
Import Android.os.IBinder;
Import Android.widget.RemoteViews;

public class Timerservice extends Service {
private timer timer;

@Override
public void OnCreate () {
Super.oncreate ();
Timer = new timer ();
Timer.schedule (New Mytimertask (), 0, 1000);
}
Private Final class Mytimertask extends timertask{
@SuppressLint ("SimpleDateFormat")
@Override
public void Run () {
SimpleDateFormat sdf= New SimpleDateFormat ("Hh:mm:ss");
String time = Sdf.format (new Date ());
Get Widgets Manager
Appwidgetmanager Widgetmanager =appwidgetmanager.getinstance (Getapplicationcontext ());
The remote view of the widget corresponding to the Widgetmanager is the layout file of the current widget
Remoteviews RemoteView = new Remoteviews (Getpackagename (), r.layout.time_appwidget);
Remoteview.settextviewtext (R.id.textview, time);
The world that triggers when you click Widgets
Remoteview.setonclickpendingintent (Viewid, pendingintent)
ComponentName componentname = new ComponentName (Getapplicationcontext (), timewidgetprovider.class);
Widgetmanager.updateappwidget (ComponentName, RemoteView);
}
}
@Override
public void OnDestroy () {
Timer.cancel ();
Timer=null;
Super.ondestroy ();
}
@Override
Public IBinder Onbind (Intent Intent) {
return null;
}
}