Android - AlarmManager设置闹钟

尉迟越
2023-12-01

闹钟可以设置一次性的闹钟和定时循环的闹钟,下面分别分享给大家

设置闹钟时间的activity_alarm1.xml文件:

里面有设置一次闹钟按钮、周期闹钟按钮,取消周期闹钟按钮

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_alarm1"
    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"
    android:orientation="vertical"
    tools:context="com.zking.a24provider.Alarm1Activity">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="设置闹钟(一次)"
        android:onClick="alertAlarm"/>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="设置闹钟(周期)"
        android:onClick="alertAlarmCycle"/>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="取消周期闹钟"
        android:onClick="cancleCycle"/>
</LinearLayout>

AlarmActivity文件代码:这里需要广播接收者来跳转Activity,周期闹钟需要点击取消周期闹钟才可停止

package com.zking.a24provider;

import android.app.AlarmManager;
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.view.View;
import android.widget.TimePicker;

import java.util.Calendar;

public class Alarm1Activity extends AppCompatActivity {

    private AlarmManager alarmManager;
    private PendingIntent pendingIntent;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_alarm1);
        //获取闹钟管理者
        alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

    }
//设置闹钟一次
    public void alertAlarm(View view){
        //弹出时间对话框

//        获取当前系统时间设置在对话框中
        Calendar calendar=Calendar.getInstance();
        int hour=calendar.get(Calendar.HOUR_OF_DAY);
        int minute=calendar.get(Calendar.MINUTE);

        TimePickerDialog timePickerDialog=new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {
            @Override
            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                //得到闹钟距离设置时间的毫秒数
                Calendar c=Calendar.getInstance();
                c.set(Calendar.HOUR_OF_DAY,hourOfDay);
                c.set(Calendar.MINUTE,minute);

                Intent intent=new Intent();
                intent.setAction("com.zking.a24provider.RING");
                //将来时态的跳转
                pendingIntent = PendingIntent.getBroadcast(Alarm1Activity.this,0x101,intent,0);
                //设置一次闹钟
                alarmManager.set(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(), pendingIntent);

                //时间一到,发送广播(闹钟响了)
                // 广播接收者中(跳转Activity)
                // 唤醒页面,跳转Activity并播放音乐

            }
        },hour,minute,true);

        timePickerDialog.show();
    }
//设置闹钟 周期
    public void alertAlarmCycle(View view){
        //弹出时间对话框

//        获取当前系统时间设置在对话框中
        Calendar calendar=Calendar.getInstance();
        int hour=calendar.get(Calendar.HOUR_OF_DAY);
        int minute=calendar.get(Calendar.MINUTE);

        TimePickerDialog timePickerDialog=new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {
            @Override
            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                //得到闹钟距离设置时间的毫秒数
                Calendar c=Calendar.getInstance();
                c.set(Calendar.HOUR_OF_DAY,hourOfDay);
                c.set(Calendar.MINUTE,minute);

                Intent intent=new Intent();
                intent.setAction("com.zking.a24provider.RING");
                //将来时态的跳转
                PendingIntent pendingIntent=PendingIntent.getBroadcast(Alarm1Activity.this,0x101,intent,0);
                //设置周期闹钟
                // 设置5秒后继续响,一般都是设置24小时后响,看个人需求
                alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(),5000,pendingIntent);

                //时间一到,发送广播(闹钟响了)
                // 广播接收者中(跳转Activity)
                // 唤醒页面,跳转Activity并播放音乐

            }
        },hour,minute,true);

        timePickerDialog.show();
    }
//取消周期闹钟
    public void cancleCycle(View view){
        alarmManager.cancel(pendingIntent);
    }
}
 
闹钟响起后跳转到的页面activity_ring.xml:
里面添加一些提示内容,还有停止闹钟按钮
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_ring"
    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"
    android:orientation="vertical"
    tools:context="com.zking.a24provider.RingActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="起床啦!"/>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="停止"
        android:onClick="stop"/>
</LinearLayout>

闹钟响起后的RingActivity:主要是用来播放音乐和停止闹钟
package com.zking.a24provider;

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);
	//这里的音乐文件是放在res下的raw里
        mediaPlayer = MediaPlayer.create(this, R.raw.love);
        mediaPlayer.start();
    }
    //停止音乐
    public void stop(View view){
       mediaPlayer.stop();
        finish();
    }
}

 

广播接收者文件RingReceived:需要在清单文件里配置

<!--配置广播接收者-->
<receiver android:name=".RingReceived">
    <intent-filter>
        <action android:name="com.zking.a24provider.RING"></action>
    </intent-filter>
</receiver>


package com.zking.a24provider;

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


public class RingReceived extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        if("com.zking.a24provider.RING".equals(intent.getAction())){
            Log.i("text","闹钟响了");
            //跳转到Activity
            Intent intent1=new Intent(context,RingActivity.class);
            //需要给intent设置标志位,类似于把要跳转的activity放到activity栈中
            intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(intent1);
        }
    }
}

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