Android Studio App设置Notification通知

1.在maniactivity.java文件里添加：

NotificationManager manager=(NotificationManager)getSystemService(NOTIFICATION_SERVICE);//NotificationManager实例对通知进行管理
Notification notification=new Notification(R.drawable.ic_launcher,"通知",System.currentTimeMillis());//创建Notification对象
notification.setLatestEventInfo(this, "通知标题", "通知内容",null);
//Uri soundUri=Uri.fromFile(new File("/system/media/audio/ringtones/Basic_tone.ogg"));
//notification.sound=soundUri;
notification.ledARGB=Color.GREEN;//控制通知的led灯颜色
notification.ledOnMS=1000;//通知灯的显示时间
notification.ledOffMS=1000;
notification.flags=Notification.FLAG_SHOW_LIGHTS;
manager.notify(1,notification);//调用NotificationManager的notify方法使通知显示

2.在drawable文件夹里添加通知的图标ic_launcher.png图片



整个maniactivity.java内容如下：

package com.example.notification;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

import java.io.File;

public class MainActivity extends Activity implements OnClickListener {
private Button sendNotice_button;
private Button button2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
sendNotice_button=(Button)findViewById(R.id.send_notice);
sendNotice_button.setOnClickListener(this);
}
public void onClick(View v)
{
switch (v.getId())
{
case R.id.send_notice:
NotificationManager manager=(NotificationManager)getSystemService(NOTIFICATION_SERVICE);//NotificationManager实例对通知进行管理
Notification notification=new Notification(R.drawable.ic_launcher,"通知",System.currentTimeMillis());//创建Notification对象
notification.setLatestEventInfo(this, "通知标题", "通知内容",null);
//Uri soundUri=Uri.fromFile(new File("/system/media/audio/ringtones/Basic_tone.ogg"));
//notification.sound=soundUri;
notification.ledARGB=Color.GREEN;//控制通知的led灯颜色
notification.ledOnMS=1000;//通知灯的显示时间
notification.ledOffMS=1000;
notification.flags=Notification.FLAG_SHOW_LIGHTS;
manager.notify(1,notification);//调用NotificationManager的notify方法使通知显示
break;
default:
break;
}
return;
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();

//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}

return super.onOptionsItemSelected(item);
}
}

Layout文件夹activity_main.xml文件内容如下：

<TableLayout 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:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
<TableRow>
<Button
android:id="@+id/send_notice"
android:text="发送通知"
android:layout_height="wrap_content" />
</TableRow>
</TableLayout>

运行效果如下，界面左上角就是通知：