android-带进度条的系统通知栏消息

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:background="#00000000" 
    android:orientation="vertical"  
    android:padding="5dp"> 
 
    <ImageView  
        android:id="@+id/content_view_image" 
        android:layout_width="25dp" 
        android:layout_height="25dp" 
        android:src="@drawable/logo" 
         
        /> 
    <TextView 
        android:id="@+id/content_view_text1" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:text="0%" 
        android:textColor="#000000" 
        android:layout_toRightOf="@id/content_view_image" 
        android:layout_centerHorizontal="true" 
        android:layout_marginTop="5dp" 
        android:layout_marginLeft="15dp" 
      /> 
    <ProgressBar  
        android:id="@+id/content_view_progress" 
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content" 
        style="@android:style/Widget.ProgressBar.Horizontal" 
        android:max="100" 
        android:layout_below="@id/content_view_image" 
        android:layout_marginTop="4dp" 
        /> 
     
</RelativeLayout> 

主运行类：

[java]
package yyy.testandroid4; 
 
import java.util.Timer; 
import java.util.TimerTask; 
 
import android.app.Activity; 
import android.app.AlertDialog.Builder; 
import android.app.Notification; 
import android.app.NotificationManager; 
import android.app.PendingIntent; 
import android.content.DialogInte易做图ce; 
import android.content.Intent; 
import android.content.pm.PackageManager.NameNotFoundException; 
import android.os.Bundle; 
import android.os.Handler; 
import android.os.Message; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.RemoteViews; 
import android.widget.Toast; 
 
public class TestAndroid4Activity extends Activity { 
     
     
    private Handler handler = new Handler(){ 
        @Override 
        public void handleMessage(Message msg) { 
            // TODO Auto-generated method stub 
            super.handleMessage(msg); 
            switch (msg.what) { 
            case 0: 
                notif.contentView.setTextViewText(R.id.content_view_text1, len+"%"); 
                notif.contentView.setProgressBar(R.id.content_view_progress, 100, len, false); 
                manager.notify(0, notif); 
                 
                break; 
            case 1: 
                Toast.makeText(TestAndroid4Activity.this, "下载完成", 0).show(); 
                break; 
            default: 
                break; 
            } 
        } 
         
    }; 
     
    private Button update,cancel; 
    private int localVersion,serverVersion; 
    private int len; 
    private NotificationManager manager; 
    private Notification notif; 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.main); 
         
        update = (Button) findViewById(R.id.update); 
       
        update.setOnClickListener(new OnClickListener() { 
            @Override 
            public void onClick(View arg0) { 
                // TODO Auto-generated method stub 
                //点击通知栏后打开的activity 
             &

补充：移动开发 , Android ,

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