Notification(一)——基础知识使用示例

main.xml如下:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
   >

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button"
        android:textSize="20sp"
        android:layout_centerInParent="true"
        />

</RelativeLayout>

another.xml如下:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
   >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/newActivity"
        android:textSize="20sp"
        android:layout_centerInParent="true"
        />

</RelativeLayout>

MainActivity如下:

import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
/**
 * Demo描述:发送系统通知
 * 注意:
 * 1 PendingIntent的使用
 * 2 权限申请
 *
 */
public class MainActivity extends Activity {
    private Button mButton;
    private final int FIRST=1;
    private final int SECOND=2;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		init();
	}
    private void init(){
    	mButton=(Button) findViewById(R.id.button);
    	mButton.setOnClickListener(new ButtonOnClickListenerImpl());
    }
    private class ButtonOnClickListenerImpl implements OnClickListener{
		@Override
		public void onClick(View v) {
          NotificationManager manager=(NotificationManager) getSystemService(NOTIFICATION_SERVICE);
          Intent firstIntent=new Intent();
          PendingIntent firstPendingIntent=PendingIntent.getActivity(MainActivity.this, 0, firstIntent, 0);
          Notification firstNotification=new Notification();
          //设置通知的图标
          firstNotification.icon=R.drawable.ic_launcher;
          //设置状态栏的通知提示信息
          firstNotification.tickerText=getResources().getString(R.string.firstNotification_ticker);
          //设置通知发送时间
          firstNotification.when=System.currentTimeMillis();
          //采用系统默认的声音,震动,闪光灯
          firstNotification.defaults=Notification.DEFAULT_ALL;
          //打开应用程序后图标消失
          firstNotification.flags|=Notification.FLAG_AUTO_CANCEL;
          //设置通知的标题和内容,以及点击通知后的相应操作.此处无操作.
          //注意:如果将该方法最后一个参数设置为null,则报错
          firstNotification.setLatestEventInfo(MainActivity.this,
        		  getResources().getString(R.string.firstNotification_title),
        		  getResources().getString(R.string.firstNotification_content),
        		  firstPendingIntent);
          //发送第一个通知
          manager.notify(FIRST, firstNotification);

          Intent secondIntent=new Intent(MainActivity.this,AnotherActivity.class);
          PendingIntent secondPendingIntent=PendingIntent.getActivity(MainActivity.this, 0, secondIntent, 0);
          Notification secondNotification=new Notification();
          //设置通知的图标
          secondNotification.icon=R.drawable.ic_launcher;
          //设置状态栏的通知提示信息
          secondNotification.tickerText=getResources().getString(R.string.secondNotification_ticker);
          //设置通知发送时间
          secondNotification.when=System.currentTimeMillis();
          //采用系统默认的声音,震动,闪光灯
          secondNotification.defaults=Notification.DEFAULT_ALL;
          //打开应用程序后图标消失
          secondNotification.flags|=Notification.FLAG_AUTO_CANCEL;
          //设置通知的标题和内容,以及点击通知后的相应操作.此处为打开指定的Activity
          //注意:如果将该方法最后一个参数设置为null,则报错
          secondNotification.setLatestEventInfo(MainActivity.this,
        		  getResources().getString(R.string.secondNotification_title),
        		  getResources().getString(R.string.secondNotification_content),
        		  secondPendingIntent);
         //发送第二个通知
          manager.notify(SECOND, secondNotification);

		}

    }
}

AnotherActivity如下:

import android.app.Activity;
import android.os.Bundle;
public class AnotherActivity extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.another);
	}
}