安卓学习第33课——notification

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:gravity="center_horizontal"
    >
<Button
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:text="发送Notification"
    android:onClick="send"
    />
<Button
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:text="删除Notification"
    android:onClick="del"
    />    
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"
    android:orientation="vertical"
    >
<!-- 定义一个ImageView -->
<ImageView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:src="@drawable/java"
    android:layout_gravity="center_horizontal"
    />
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.notification"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="16"
        android:targetSdkVersion="19" />

    <!-- 添加操作闪光灯的权限 -->
    <uses-permission android:name="android.permission.FLASHLIGHT" />
    <!-- 添加操作振动器的权限 -->
    <uses-permission android:name="android.permission.VIBRATE" />    
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.notification.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".OtherActivity"
            android:label="@string/other_activity">
        </activity>
    </application>

</manifest>

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.net.Uri;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends Activity {

    static final int NOTIFICATION_ID=0x123;
    NotificationManager nm;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        nm=(NotificationManager) getSystemService(NOTIFICATION_SERVICE);    
    }
    // 为发送通知的按钮的点击事件定义事件处理方法
        public void send(View source)
        {
            // 创建一个启动其他Activity的Intent
            Intent intent = new Intent(MainActivity.this
                , OtherActivity.class);
            PendingIntent pi = PendingIntent.getActivity(
                    MainActivity.this, 0, intent, 0);
            Notification notify = new Notification.Builder(this)
                // 设置打开该通知，该通知自动消失
                .setAutoCancel(true)
                // 设置显示在状态栏的通知提示信息
                .setTicker("有新消息")
                // 设置通知的图标
                .setSmallIcon(R.drawable.notify)
                // 设置通知内容的标题
                .setContentTitle("一条新通知")
                // 设置通知内容
                .setContentText("恭喜你，您加薪了，工资增加20%!")
                // // 设置使用系统默认的声音、默认LED灯
                // .setDefaults(Notification.DEFAULT_SOUND
                // |Notification.DEFAULT_LIGHTS)
                // 设置通知的自定义声音
                .setSound(Uri.parse("android.resource://com.example.notification/"
                    + R.raw.mylove1))
                .setWhen(System.currentTimeMillis())
                // 设改通知将要启动程序的Intent
                .setContentIntent(pi).build();
            // 发送通知
            nm.notify(NOTIFICATION_ID, notify);
        }

        // 为删除通知的按钮的点击事件定义事件处理方法
        public void del(View v)
        {
            // 取消通知
            nm.cancel(NOTIFICATION_ID);
        }
    
}

package com.example.notification;

import android.app.Activity;
import android.os.Bundle;

public class OtherActivity extends Activity
{
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        //设置该Activity显示的页面
        setContentView(R.layout.other);
    }
}