Android项目仿UC浏览器和360手机卫士消息常驻栏（通知栏）

之前网上看了下自定义消息栏，通知栏，了解到了Notification这个控件，发现UC浏览器等都是这种类型，今天写个demo实现下，如图：

其中每个按钮都有不同的功能，代码如下：

package com.example.textwsjdemo; 

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.RemoteViews;
import android.widget.Toast; 

public class MainActivity extends Activity { 

 private Button bt_hehe;
 private NotificationManager notificationManager;
 private Notification notification;
 private int icon;
 private CharSequence tickerText;
 private long when;
 RemoteViews contentView;
 private Intent intent;
 private PendingIntent pendingIntent;
 private int notification_id = 0;
 private MyBroadCast receiver;
 private static String ACTION = "a"; 

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  receiver = new MyBroadCast();
  IntentFilter filter = new IntentFilter();
  filter.addAction("a");
  filter.addAction("b");
  filter.addAction("c");
  filter.addAction("d");
  registerReceiver(receiver, filter); 

  initView();
  initData(); 

 } 

 private void initData() {
  icon = R.drawable.ic_launcher; // 通知图标
  tickerText = "Hello"; // 状态栏显示的通知文本提示
  when = System.currentTimeMillis(); // 通知产生的时间，会在通知信息里显示
 } 

 private void initView() {
  bt_hehe = (Button) findViewById(R.id.bt_hehe);
  bt_hehe.setOnClickListener(new OnClickListener() { 

   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    // 启动提示栏
    createNotification();
   }
  });
 } 

 private void createNotification() {
  notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
  notification = new Notification();
  notification.icon = icon;
  notification.tickerText = tickerText;
  notification.when = when; 

  /***
   * 在这里我们用自定的view来显示Notification
   */
  contentView = new RemoteViews(getPackageName(),
    R.layout.notification_item);
  contentView.setTextViewText(R.id.text11, "小说");
  contentView.setTextViewText(R.id.text22, "视频");
  contentView.setTextViewText(R.id.text33, "新闻");
  contentView.setTextViewText(R.id.text44, "扯淡");
  // contentView.setTextViewText(R.id.notificationPercent, "0%");
  // contentView.setProgressBar(R.id.notificationProgress, 100, 0, false);
  // //进度条
  // contentView.setImageViewResource(R.id.image,R.drawable.more_advice);
  // //加载图片
  // contentView.setImageViewResource(R.id.image,R.drawable.more_attention);
  // contentView.setImageViewResource(R.id.image,R.drawable.more_evaluate);
  // contentView.setImageViewResource(R.id.image,R.drawable.more_about);
  // contentView.setTextViewText(R.id.text,"Hello,this message is in a custom expanded view");
  // //文本 

  notification.flags = Notification.FLAG_ONGOING_EVENT; // 设置常驻，不能滑动取消
  //默认跳转的主界面
  intent = new Intent(this, MainActivity.class);
  intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
  pendingIntent = PendingIntent.getActivity(this, 0, intent, 0); 

  //自定义跳转
  contentView.setOnClickPendingIntent(R.id.ll_11, PendingIntent.getBroadcast(MainActivity.this, 11, new Intent().setAction("a"), PendingIntent.FLAG_UPDATE_CURRENT));
  contentView.setOnClickPendingIntent(R.id.ll_22, PendingIntent.getBroadcast(MainActivity.this, 11, new Intent().setAction("b"), PendingIntent.FLAG_UPDATE_CURRENT));
  contentView.setOnClickPendingIntent(R.id.ll_33, PendingIntent.getBroadcast(MainActivity.this, 11, new Intent().setAction("c"), PendingIntent.FLAG_UPDATE_CURRENT));
  contentView.setOnClickPendingIntent(R.id.ll_44, PendingIntent.getBroadcast(MainActivity.this, 11, new Intent().setAction("d"), PendingIntent.FLAG_UPDATE_CURRENT));
  notification.contentView = contentView;
  notification.contentIntent = pendingIntent;
  notificationManager.notify(notification_id, notification);
 } 

 // 取消通知
 private void cancelNotification() {
  notificationManager.cancelAll();
 } 

 @Override
 protected void onDestroy() {
  cancelNotification();
  unregisterReceiver(receiver); 

 } 

 @Override
 public boolean onKeyDown(int keyCode, KeyEvent event) {
  if ((keyCode == KeyEvent.KEYCODE_BACK)) {
   System.out.println("按下了back键 onKeyDown()");
   cancelNotification();
  }
  return super.onKeyDown(keyCode, event);
 } 

 class MyBroadCast extends BroadcastReceiver { 

  @Override
  public void onReceive(Context context, Intent intent) {
   if(intent.getAction().equals("a")){
    Toast.makeText(MainActivity.this, "11111111111111",
      Toast.LENGTH_LONG).show();
    startActivity(new Intent(MainActivity.this, ActivityText1.class));
   }
   if(intent.getAction().equals("b")){
    Toast.makeText(MainActivity.this, "222222222222222",
      Toast.LENGTH_LONG).show();
    startActivity(new Intent(MainActivity.this, ActivityText2.class));
   }
   if(intent.getAction().equals("c")){
    Toast.makeText(MainActivity.this, "333333333333",
      Toast.LENGTH_LONG).show();
    startActivity(new Intent(MainActivity.this, ActivityText3.class));
   }
   if(intent.getAction().equals("d")){
    Toast.makeText(MainActivity.this, "4444444444444",
      Toast.LENGTH_LONG).show();
    startActivity(new Intent(MainActivity.this, ActivityText4.class));
   } 

  } 

 } 

}

以下是一些属性的设置：

/*
* 添加声音
* notification.defaults |=Notification.DEFAULT_SOUND;
* 或者使用以下几种方式
* notification.sound = Uri.parse("file:///sdcard/notification/ringer.mp3");
* notification.sound = Uri.withAppendedPath(Audio.Media.INTERNAL_CONTENT_URI, "6");
* 如果想要让声音持续重复直到用户对通知做出反应，则可以在notification的flags字段增加"FLAG_INSISTENT"
* 如果notification的defaults字段包括了"DEFAULT_SOUND"属性，则这个属性将覆盖sound字段中定义的声音
*/
/*
* 添加振动
* notification.defaults |= Notification.DEFAULT_VIBRATE;
* 或者可以定义自己的振动模式：
* long[] vibrate = {0,100,200,300}; //0毫秒后开始振动，振动100毫秒后停止，再过200毫秒后再次振动300毫秒
* notification.vibrate = vibrate;
* long数组可以定义成想要的任何长度
* 如果notification的defaults字段包括了"DEFAULT_VIBRATE",则这个属性将覆盖vibrate字段中定义的振动
*/
/*
* 添加LED灯提醒
* notification.defaults |= Notification.DEFAULT_LIGHTS;
* 或者可以自己的LED提醒模式:
* notification.ledARGB = 0xff00ff00;
* notification.ledOnMS = 300; //亮的时间
* notification.ledOffMS = 1000; //灭的时间
* notification.flags |= Notification.FLAG_SHOW_LIGHTS;
*/
/*
* 更多的特征属性
* notification.flags |= FLAG_AUTO_CANCEL; //在通知栏上点击此通知后自动清除此通知
* notification.flags |= FLAG_INSISTENT; //重复发出声音，直到用户响应此通知
* notification.flags |= FLAG_ONGOING_EVENT; //将此通知放到通知栏的"Ongoing"即"正在运行"组中
* notification.flags |= FLAG_NO_CLEAR; //表明在点击了通知栏中的"清除通知"后，此通知不清除，
* //经常与FLAG_ONGOING_EVENT一起使用
* notification.number = 1; //number字段表示此通知代表的当前事件数量，它将覆盖在状态栏图标的顶部
* //如果要使用此字段，必须从1开始
* notification.iconLevel = ; //

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