AlarmManager实现闹钟

程序员文章站 2022-07-12 11:23:18

...

今天给大家介绍一下闹钟的实现，先看概念图：

AlarmManager实现闹钟

其中氛围两种基础的，一为一次性闹钟，响一次就停止；二为周期闹钟，可以由自己设置周期时间，重复响铃，以下为代码：

xml部分：

activity_main.xml(设置闹钟的界面)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:orientation="vertical"
    android:layout_height="match_parent">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="设置闹钟(一次)"
        android:onClick="setAlarmOnce"
        ></Button>
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="设置闹钟(周期)"
        android:onClick="setAlarmRepeat"
        ></Button>
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="取消周期闹钟"
        android:onClick="cancelAlarmRepeat"
        ></Button>

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="发送通知"
        android:onClick="send"
        />
</LinearLayout>

activity_ring.xml(闹钟响铃的界面)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="懒PIG，该出窝了！！！"
        android:textSize="40sp"
        />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="停止"
        android:onClick="stop"
        />

</LinearLayout>

java部分：

MainActivity.java:

package 

com.zking.administrator.g160628_android29_alarm_notification;

import android.app.AlarmManager;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TimePickerDialog;
import android.content.Context;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.app.NotificationCompat;
import android.view.View;
import android.widget.TimePicker;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity {

    private AlarmManager am;
    private PendingIntent pendingIntent;
    private NotificationManager notificationManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //获取闹钟管理器
        am = (AlarmManager) getSystemService

(Context.ALARM_SERVICE);
        //获取通知管理器
        notificationManager = (NotificationManager) 

getSystemService(Context.NOTIFICATION_SERVICE);

    }
    public void setAlarmOnce(View view){
        //获取当前系统时间
        Calendar calendar=Calendar.getInstance();
        int hour=calendar.get(Calendar.HOUR_OF_DAY);
        int minute=calendar.get(Calendar.MINUTE);


         //1.弹出时间对话框
        TimePickerDialog timePickerDialog=new 

TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener

() {
            @Override
            public void onTimeSet(TimePicker view, int 

hourOfDay, int minute) {
                Calendar c=Calendar.getInstance();
                c.set(Calendar.HOUR_OF_DAY,hourOfDay);
                c.set(Calendar.MINUTE,minute);
                //2.获取到时间      hourOfDay       minute
                //3.设置闹钟
                PendingIntent 

pendingIntent=PendingIntent.getBroadcast

(MainActivity.this,0x101,new Intent

("com.zking.administrator.g160628_android29_alarm_notification

.RING"),0);
                am.set

(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(),pendingIntent);
            }
        },hour,minute,true);
        timePickerDialog.show();
    }
    public void setAlarmRepeat(View view){
        //获取当前系统时间
        Calendar calendar=Calendar.getInstance();
        int hour=calendar.get(Calendar.HOUR_OF_DAY);
        int minute=calendar.get(Calendar.MINUTE);

        //1.弹出时间对话框
        TimePickerDialog timePickerDialog=new 

TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener

() {
            @Override
            public void onTimeSet(TimePicker view, int 

hourOfDay, int minute) {
                Calendar c=Calendar.getInstance();
                c.set(Calendar.HOUR_OF_DAY,hourOfDay);
                c.set(Calendar.MINUTE,minute);
                //2.获取时间 
                //3.设置闹钟
                pendingIntent = PendingIntent.getBroadcast

(MainActivity.this,0x102,new Intent

("com.zking.administrator.g160628_android29_alarm_notification

.RING"),0);
                am.setRepeating

(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(),5000, 

pendingIntent);
            }
        },hour,minute,true);
        timePickerDialog.show();
    }


    public void cancelAlarmRepeat(View view){
          am.cancel(pendingIntent);
    }


    public void send(View view){
         //实例化通知
        NotificationCompat.Builder builder=new 

NotificationCompat.Builder(this);
        builder.setContentTitle("提示");
        builder.setContentText("中奖啦！请先汇款到XXX账号****");
        builder.setSmallIcon(android.R.drawable.star_on);
        builder.setDefaults(NotificationCompat.DEFAULT_ALL);
        builder.setAutoCancel(true);
//      builder.setContentIntent()
//        builder.setCustomContentView()
        Notification notification=builder.build();

        //发送通知
        notificationManager.notify(0x101,notification);
    }
}

RingActivity.java

package com.zking.administrator.g160628_android29_alarm_notification;

import android.media.MediaPlayer;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

public class RingActivity extends AppCompatActivity {

    private MediaPlayer mediaPlayer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_ring);
        mediaPlayer = MediaPlayer.create(this, R.raw.c);
        mediaPlayer.start();
    }
    public void stop(View view){
        mediaPlayer.stop();
        finish();
    }


}

RingReceiver.java:

package com.zking.administrator.g160628_android29_alarm_notification;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

/**
 * Created by Administrator on 2017/7/23 0023.
 */

public class RingReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        if("com.zking.administrator.g160628_android29_alarm_notification.RING".equals(intent.getAction())){
            Log.i("test","闹钟响了！！！");
            //跳转到Activity中
            Intent intent2=new Intent(context,RingActivity.class);
            intent2.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(intent2);
        }
    }
}

最后，不要忘记设置权限：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.zking.administrator.g160628_android29_alarm_notification">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".RingActivity"></activity>
        <receiver android:name=".RingReceiver"
            android:enabled="true"
            android:exported="true"
            >
            <intent-filter>
                <action android:name="com.zking.administrator.g160628_android29_alarm_notification.RING"></action>
            </intent-filter>
        </receiver>
    </application>

</manifest>

上一篇： Spring后置处理器

下一篇：生命周期(四)--BeanPostProcessor-后置处理器

AlarmManager实现闹钟

简单实现js菜单栏切换效果

Android 中RecyclerView顶部刷新实现详解

ThinkPHP框架实现session跨域问题的解决方法

php实现12306火车票余票查询和价格查询(12306火车票查询)

js css3实现图片拖拽效果

给Notepad++ 加右键菜单带图标的实现方法

Android 浮动编辑框的具体实现代码

pandas DataFrame 删除重复的行的实现方法

利用yahoo汇率接口实现实时汇率转换示例汇率转换器

Android计步功能的实现代码

AlarmManager实现闹钟

简单实现js菜单栏切换效果

Android 中RecyclerView顶部刷新实现详解

ThinkPHP框架实现session跨域问题的解决方法

php实现12306火车票余票查询和价格查询(12306火车票查询)

js css3实现图片拖拽效果

给Notepad++ 加右键菜单带图标的实现方法

Android 浮动编辑框的具体实现代码

pandas DataFrame 删除重复的行的实现方法

利用yahoo汇率接口实现实时汇率转换示例 汇率转换器

Android计步功能的实现代码

利用yahoo汇率接口实现实时汇率转换示例汇率转换器