Go语言视频零基础入门到精通

8jnuj3

启动AcStart，负责在创建时立即创建一个Notification在状态栏中，处理动作为后面的AcNotificationDealer。
AcStart.java
package jtapp.notifications;

import android.app.Activity;

import android.app.Notification;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.content.Context;

import android.content.Intent;

import android.net.Uri;

import android.os.Bundle;

public class AcStart extends Activity {

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        

        String ns = Context.NOTIFICATION_SERVICE;

        NotificationManager mNotificationManager =

                (NotificationManager) getSystemService(ns);

        Long when = System.currentTimeMillis();

        CharSequence tickerText = "My notification: Hello World! Click to deal this notification.";

        Notification notification =

                new Notification(R.drawable.icon, tickerText, when);

        notification.vibrate = new long[] {100,250,100,500};

        

        Context context = getApplicationContext();

        CharSequence contentTitle = "My notification";

        CharSequence contentText = "Hello World! Click to deal this notification.";

        Intent notificationIntent =

                new Intent(this, AcNotificationDealer.class);

        PendingIntent contentIntent =

                PendingIntent.getActivity(this, 0, notificationIntent, 0);

        notification.setLatestEventInfo(

                        context, contentTitle, contentText, contentIntent);

        

        mNotificationManager.notify(9999, notification);

    }

}

取消上一通知，创建10s定时器通知。
AcNotificationDealer.java
package jtapp.notifications;

import java.util.Calendar;

import android.app.Activity;

import android.app.AlarmManager;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.widget.Toast;

public class AcNotificationDealer extends Activity {

        /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.notifdealer);

        

        String ns = Context.NOTIFICATION_SERVICE;

        NotificationManager mNotificationManager =

                (NotificationManager) getSystemService(ns);

        mNotificationManager.cancel(9999);

        

        Intent intent = new Intent(

                        AcNotificationDealer.this, ReceiverAlarm.class);

        PendingIntent appIntent =

                PendingIntent.getBroadcast(

                                AcNotificationDealer.this, 0, intent, 0);

        Calendar calendar = Calendar.getInstance();

        calendar.setTimeInMillis(System.currentTimeMillis());

        calendar.add(Calendar.SECOND, 10);

        

        AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);

        am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), appIntent);

        

        Toast.makeText(this, "10秒后在状态栏将创建定时器通知.", Toast.LENGTH_LONG).show();

    }

   

   

}

接受10s定时器通知，并创建状态栏通知。
ReceiverAlarm.java
package jtapp.notifications;

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.net.Uri;

public class ReceiverAlarm extends BroadcastReceiver {

        @Override

        public void onReceive(Context context, Intent intent) {

                 String ns = Context.NOTIFICATION_SERVICE;

                NotificationManager mNotificationManager =

                        (NotificationManager) context.getSystemService(ns);

                Long when = System.currentTimeMillis();

                CharSequence tickerText = "My Alarm Fired：Hello World Alarm! Click ready to dial 10010.";

                Notification notification =

                        new Notification(R.drawable.icon, tickerText, when);

                notification.vibrate = new long[] {100,250,100,500};

               

                CharSequence contentTitle = "My Alarm Fired";

                CharSequence contentText = "Hello World Alarm! Click ready to dial 10010.";

                Intent notificationIntent =

                        new Intent(Intent.ACTION_DIAL, Uri.parse("tel:10010"));

                PendingIntent contentIntent =

                        PendingIntent.getActivity(context, 0, notificationIntent, 0);

                notification.setLatestEventInfo(

                                context, contentTitle, contentText, contentIntent);

               

                mNotificationManager.notify(9998, notification);

        }

}

main.xml
<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    androidrientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

<TextView  

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="启动该Activity后, 会在状态栏产生一个通知，该通知用来进入通知处理Activity."

    />

</LinearLayout>
notifdealer.xml
<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

<TextView  

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="此页面为通知处理页面，用来处理点击状态栏Notification后的流程，状态栏上会自动取消该通知，并且设定10秒后创建Dial 10010的定时器通知。"

    />

</LinearLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

      package="jtapp.notifications"

      android:versionCode="1"

      android:versionName="1.0">

    <application android:icon="@drawable/icon" android:label="@string/app_name">

        <activity android:name=".AcStart"

                  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="AcNotificationDealer"></activity>

<receiver android:name="ReceiverAlarm"></receiver>

</application>

<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>

<uses-permission android:name="android.permission.VIBRATE"></uses-permission>

</manifest>