android Notification通知使用——摘自疯狂java讲义
Notification用于通知用户，效果类似短信或者微信消息之类的。下面是使用方法：
布局文件：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.wuxueyou.notification.MainActivity">
<Button
android:layout_width="wrap_content"
android:id="@+id/button"
android:text="点击"
android:layout_height="wrap_content" />
</RelativeLayout>
MainActivity.java
package com.example.wuxueyou.notification;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.graphics.BitmapFactory;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
static final int NOTIFICATION_ID =0x123;
NotificationManager nm;
private Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
button = (Button)this.findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
send();
}
});
}
public void send(){
Intent intent = new Intent(this,Other.class);
PendingIntent pi = PendingIntent.getActivity(MainActivity.this,0,intent,0);
Notification nofity = new Notification.Builder(this)
.setAutoCancel(true)
.setTicker("有新消息")
.setSmallIcon(R.drawable.p1)
.setLargeIcon(BitmapFactory.decodeResource(getResources(),R.drawable.notify))
.setContentTitle("一条新通知")
.setContentText("恭喜您,您加薪了,工资增加20%")
.setDefaults(Notification.DEFAULT_SOUND|Notification.DEFAULT_LIGHTS|Notification.DEFAULT_VIBRATE)
.setWhen(System.currentTimeMillis())
.setContentIntent(pi)
.build();
nm.notify(NOTIFICATION_ID,nofity);
}
public void del(View v){
nm.cancel(NOTIFICATION_ID);
}
}
使用到的资源：
activity_other.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.wuxueyou.notification.Other">
<TextView
android:layout_width="match_parent"
android:text="hello world"
android:layout_height="wrap_content" />
</RelativeLayout>
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