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   源码介绍

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在一些情况下，需要不断地显示消息提示，本示例从串口输入广播命令来触发消息提示框的弹出，非常简单方便。

package com.example.noticedemo;

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.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.service.notification.NotificationListenerService;
import android.service.notification.StatusBarNotification;
import android.util.Log;
import android.widget.RemoteViews;

public class MainActivity extends Activity {

private static final String TAG = "zr_MainActivity";
Context mContext;
// public H mHandler = new H();

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = MainActivity.this;
new H(mContext);
new NotificationCollectorService();
Log.d(TAG, "onCreate-----------");
}

// public void dataGet() {
//
// Log.d(TAG, "dataGet--------");
// NotificationManager manager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
// // Notification myNotify = new Notification(R.drawable.message,   
// // "自定义通知：您有新短信息了，请注意查收！", System.currentTimeMillis());   
// Notification myNotify = new Notification();  
// myNotify.icon = R.drawable.ic_launcher;  
// myNotify.tickerText = "TickerText:您有新短消息，请注意查收！";  
// myNotify.when = System.currentTimeMillis();  
// myNotify.flags = Notification.FLAG_NO_CLEAR;// 不能够自动清除   
// RemoteViews rv = new RemoteViews(mContext.getPackageName(),  
// R.layout.my_notification);  
// rv.setTextViewText(R.id.text_content, "hello wrold!");  
// myNotify.contentView = rv;  
// Intent intent = new Intent(Intent.ACTION_MAIN);  
// PendingIntent contentIntent = PendingIntent.getActivity(mContext, 1,  
// intent, 1);  
// myNotify.contentIntent = contentIntent;  
// manager.notify(0, myNotify);
// }

class NotificationCollectorService extends NotificationListenerService {

@Override
public void onNotificationPosted(StatusBarNotification sbn) {

Log.d("zr_NotificationCollectorService", "open" "-----" sbn.toString());
}

@Override
public void onNotificationRemoved(StatusBarNotification sbn) {
Log.d("zr_NotificationCollectorService", "shut" "-----" sbn.toString());

}
}
// class H extends Handler {
//
// public void handleMessage(Message msg) {
//
// switch (msg.what) {
//
// case 0: {
//
// dataGet();
// break;
// }
// default:
// break;
// }
// super.handleMessage(msg); 
// }
// }
}