安卓 闹钟demo

闹钟是每部手机必备的一个软件，今天就来分享一下。这个demo分一次性闹钟，周期性闹钟。

xml:

<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:orientation="vertical"
    tools:context="com.example.an_alarm.MainActivity">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="设置闹钟(一次)"
        android:onClick="setAlarmOne"
        />

    <Button
        android:layout_width="wrap_content"
        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>

activity:

package com.example.an_alarm;

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.util.Log;
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);
    }
//设置一次
    public void setAlarmOne(View view){
        //获取当前系统时间
        Calendar calendar=Calendar.getInstance();
         int hour= calendar.get(Calendar.DAY_OF_MONTH);
          int   minute=calendar.get(Calendar.MINUTE);

           //弹出对话框
        TimePickerDialog timePickerDialog=new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {
            @Override
            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
            //设置闹钟
                Calendar  calendar1=Calendar.getInstance();
                calendar1.set(Calendar.HOUR_OF_DAY,hourOfDay,minute);
                calendar1.set(Calendar.MINUTE,minute);
                Log.i("test","调了1");
                //.当之间一到，将执行的响应
                Intent intent=new Intent();
                intent.setAction("com.zking.g150831_android28_alarm_notification.RING");
               pendingIntent = PendingIntent.getBroadcast(MainActivity.this,0x101,intent,0);
            //一次
               alarmManager.set(AlarmManager.RTC_WAKEUP, calendar1.getTimeInMillis(),pendingIntent);
                Log.i("test","调了2");
            }
        },hour,minute,true);
        timePickerDialog.show();
    }

    //周期闹钟
    public void setAlarmCycle(View view){
        //获取当前系统时间
        Calendar calendar=Calendar.getInstance();
        int hour= calendar.get(Calendar.DAY_OF_MONTH);
        int   minute=calendar.get(Calendar.MINUTE);

        //弹出对话框
        TimePickerDialog timePickerDialog=new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {
            @Override
            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                //设置闹钟
                Calendar  calendar1=Calendar.getInstance();
                calendar1.set(Calendar.HOUR_OF_DAY,hourOfDay,minute);
                calendar1.set(Calendar.MINUTE,minute);
                Log.i("test","调了3");
                //.当之间一到，将执行的响应
                Intent intent=new Intent();
                intent.setAction("com.zking.g150831_android28_alarm_notification.RING");
                pendingIntent = PendingIntent.getBroadcast(MainActivity.this,0x103,intent,0);
               alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar1.getTimeInMillis(),10000, pendingIntent);
                Log.i("test","调了4");
            }
        },hour,minute,true);
        timePickerDialog.show();
    }
//取消
    public  void cancelAlarmCycle(View view){
        alarmManager.cancel( pendingIntent);
    }
}

通过广播发送，必然接收：

package com.example.an_alarm;

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

/**
 * Created by Administrator on 2017/2/22.
 */

public class Ringrescevied extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        if("com.zking.g150831_android28_alarm_notification.RING".equals(intent.getAction())){
            Log.i("test","收到广播了");

            //跳转到另一个activity intent
            Intent intent1=new Intent(context,Ring.class);
            //给Intent 设置标志位flag
                intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

            //Intent
            context.startActivity(intent1);
        }


    }
}

必要记得配置清单文件：

<receiver android:name=".Ringrescevied">
                <intent-filter>
                    <action android:name="com.zking.g150831_android28_alarm_notification.RING">action>
                intent-filter>
            receiver>

跳转activity播放音乐并通知：

package com.example.an_alarm;

import android.app.Notification;
import android.app.NotificationManager;
import android.content.Context;
import android.content.Intent;
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 Ring 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.young);
         mediaPlayer.start();

        //显示通知栏  Builder  构建器
        NotificationCompat.Builder  notificationCompat=new NotificationCompat.Builder(this);
       //设置参数
        notificationCompat.setDefaults(Notification.DEFAULT_ALL);
        //标题
        notificationCompat.setContentTitle("信息来了");
        //内容
        notificationCompat.setContentText("看看吧");
//得到通知

        Notification notificationCompat1=notificationCompat.build();

// 得到通知管理器

        NotificationManager notificationManager= (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
      //发送通知
        notificationManager.notify(0x11,notificationCompat1);


        //notificationCompat.setContent(,Intent.class);

    }

    //关闭
    public void close(View view){
        mediaPlayer.stop();
        finish();
    }


}

其对应的xml:

<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:orientation="vertical"
    tools:context="com.example.an_alarm.Ring">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="主人，起床啦"
        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>