AlarmManager（闹钟）+Notification（通知）

来源：互联网发布：赌球软件哪个好编辑：程序博客网时间：2024/06/06 00:51

相信无论是上班一族还是学生一族，最离不开的就是闹钟了，早上起不起得来全靠它了，那么今天我们就来讲讲手机闹钟吧

我们来做个简单的小Demo

Demo截图如下：

main.xml：

<?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_main"    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.android_28_alarm_notification.MainActivity">    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="设置闹钟(一次)"        android:onClick="setAlarmOne"        />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="设置闹钟(周期)"        android:onClick="setAlarmCycle"        />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="取消周期闹钟"        android:onClick="cancelAlarmCycle"        /></LinearLayout>

main.activity：

package com.zking.android_28_alarm_notification;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 MainActivity extends AppCompatActivity {    private AlarmManager alarmManager;    private PendingIntent pendingIntent;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //获取闹钟管理者        alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);    }    public void setAlarmOne(View view){        //获取系统当前时间        Calendar calendar=Calendar.getInstance();        int hour=calendar.get(Calendar.HOUR_OF_DAY);        int minute=calendar.get(Calendar.MINUTE);        //01、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) {                //c为改了之后的时间                Calendar c=Calendar.getInstance();                c.set(Calendar.HOUR_OF_DAY,hourOfDay);                c.set(Calendar.MINUTE,minute);                //02、确定好选择的时间                //03、设置闹钟  RTC_WAKEUP可以唤醒你的手机                //04、当时间一到，将执行的响应                Intent intent=new Intent();                intent.setAction("com.zking.android_28_alarm_notification.RING");                PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this,0x101,intent,0);                alarmManager.set(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(), pendingIntent);            }        },hour,minute,true);        timePickerDialog.show();    }    public void setAlarmCycle(View view){        //获取系统当前时间        Calendar calendar=Calendar.getInstance();        int hour=calendar.get(Calendar.HOUR_OF_DAY);        int minute=calendar.get(Calendar.MINUTE);        //01、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) {                //c为改了之后的时间                Calendar c=Calendar.getInstance();                c.set(Calendar.HOUR_OF_DAY,hourOfDay);                c.set(Calendar.MINUTE,minute);                //02、确定好选择的时间                //03、设置闹钟  RTC_WAKEUP可以唤醒你的手机                //04、当时间一到，将执行的响应                Intent intent=new Intent();                intent.setAction("com.zking.android_28_alarm_notification.RING");                pendingIntent = PendingIntent.getBroadcast(MainActivity.this,0x102,intent,0);                alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(),5000, pendingIntent);            }        },hour,minute,true);        timePickerDialog.show();    }    public void cancelAlarmCycle(View view){        alarmManager.cancel(pendingIntent);    }}

闹钟设置完成之后，我们可以跳转到另外一个activity，将这个activity继承广播，这样当时间一到，闹钟一响就可以播放音乐啦，我们用PendingIntent来做这个跳转

ring.xml：

<?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.android_28_alarm_notification.RingActivity">    <TextView        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="懒PIG，该起床了"        android:textSize="30sp"        />    <AnalogClock        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/analogClock" />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="关闭"        android:onClick="close"        /></LinearLayout>

ring.activity：

package com.zking.android_28_alarm_notification;import android.app.Notification;import android.app.NotificationManager;import android.content.Context;import android.media.MediaPlayer;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.support.v7.app.NotificationCompat;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);        //播放音乐        mediaPlayer = MediaPlayer.create(this, R.raw.q1);        mediaPlayer.start();          }       public void close(View view){           mediaPlayer.stop();           finish();       }}

现在我们来写通知栏，我们可以在闹钟响铃之后在通知栏显示信息

package com.zking.android_28_alarm_notification;import android.app.Notification;import android.app.NotificationManager;import android.content.Context;import android.media.MediaPlayer;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.support.v7.app.NotificationCompat;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);        //播放音乐        mediaPlayer = MediaPlayer.create(this, R.raw.q1);        mediaPlayer.start();        //显示通知栏        NotificationCompat.Builder no=new NotificationCompat.Builder(this);        //设置参数        no.setDefaults(NotificationCompat.DEFAULT_ALL);        no.setContentTitle("闹钟提醒");        no.setContentText("傻逼懒猪快起来啦！！");        no.setSmallIcon(android.R.drawable.ic_lock_idle_alarm);        Notification notification=no.build();        //通知管理器        NotificationManager notificationManager= (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);        //发送通知        notificationManager.notify(0x101,notification);    }       public void close(View view){           mediaPlayer.stop();           finish();       }}

如果大家还有什么不了解的，我这里还有详解图：

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