AppWidget的范例

首先在res文件夹下新建一目录,命名为xml。然后在这个目录下新建一个xml文件(如下图):image

example_appwidget.xml的内容如下:

<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
    android:initialLayout="@layout/appwidget_layout"
    android:minHeight="72dp"
    android:minWidth="294dp"
    android:updatePeriodMillis="86400000" />
然后创建一个类:ExampleAppWidget。ExampleAppWidget.java如下:
package com.kevin.appwidget.test1;
 
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.RemoteViews;
 
public class ExampleAppWidget extends AppWidgetProvider {
 
    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager,
            int[] appWidgetIds) {
        super.onUpdate(context, appWidgetManager, appWidgetIds);
        Log.v("tag", "------------------------>onUpdate()");
 
        Intent intent = new Intent(context, AppWidget01Activity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0,
                intent, 0);
        RemoteViews view = new RemoteViews(context.getPackageName(),
                R.layout.appwidget_layout);
        view.setOnClickPendingIntent(R.id.btnStartActivity, pendingIntent);
        appWidgetManager.updateAppWidget(appWidgetIds, view);
    }
 
    @Override
    public void onDeleted(Context context, int[] appWidgetIds) {
        super.onDeleted(context, appWidgetIds);
        Log.v("tag", "------------------------>onDeleted()");
    }
 
    @Override
    public void onEnabled(Context context) {
        super.onEnabled(context);
        Log.v("tag", "------------------------>onEnabled()");
    }
 
    @Override
    public void onDisabled(Context context) {
        super.onDisabled(context);
        Log.v("tag", "------------------------>onDisabled()");
    }
 
}
 
最后配置Manifest.xml文件。如下:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.kevin.appwidget.test1"
    android:versionCode="1"
    android:versionName="1.0" >
 
    <uses-sdk android:minSdkVersion="8" />
 
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:label="@string/app_name"
            android:name=".AppWidget01Activity" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />
 
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
 
        <receiver android:name=".ExampleAppWidget" >
            <intent-filter >
                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
            </intent-filter>
 
            <meta-data
                android:name="android.appwidget.provider"
                android:resource="@xml/example_appwidget" />
        </receiver>
    </application>
 
</manifest>

 

这样就可以看到appwidget的效果了。

posted @ 2011-12-01 22:59  图形学小菜鸟  阅读(977)  评论(0编辑  收藏  举报