android值制作简易的闹钟和通知栏信息

1.制作一次性闹钟

2.制作周期闹钟

3.制作通知信息的弹出框

首先来一个闹钟思维导图吧

简单的思路：

设置（MainActivity）----------->广播接受者（RingReceiver）------------>响铃(RingActivity)---------->设置（MainAcitvity）

再来一个通知的思维导图

代码如下，里面有详解

package com.example.cookie.android0723alarmone;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 setAlarm(View view){        Calendar calendar=Calendar.getInstance();        int hour=calendar.get(Calendar.HOUR_OF_DAY);        int minute=calendar.get(Calendar.MINUTE);        //1.弹出提示框        TimePickerDialog timePickerDialog=new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {            @Override            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {                //2.获取闹钟时间                Calendar c=Calendar.getInstance();                c.set(Calendar.HOUR_OF_DAY,hourOfDay);                c.set(Calendar.MINUTE,minute);                //3.设置闹钟                PendingIntent pendingIntent=PendingIntent.getBroadcast(MainActivity.this,0x101,new Intent("com.example.cookie.android0723alarmone.RING"),0);                am.set(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(),pendingIntent);            }        },hour,minute,true);timePickerDialog.show();    }    public void setAlarmRepeat(View view){        Calendar calendar=Calendar.getInstance();        int hour=calendar.get(Calendar.HOUR_OF_DAY);        int minute=calendar.get(Calendar.MINUTE);        //1.弹出对话框        TimePickerDialog timePickerDialog=new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {            @Override            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {                //2.获取闹钟时间                Calendar c=Calendar.getInstance();                c.set(Calendar.HOUR_OF_DAY,hourOfDay);                c.set(Calendar.MINUTE,minute);                //3.设置闹钟                pendingIntent = PendingIntent.getBroadcast(MainActivity.this,0x101,new Intent("com.example.cookie.android0723alarmone.RING"),0);                am.setRepeating(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(),5000, pendingIntent);            }        },hour,minute,true);        timePickerDialog.show();    }    public void stopRepeat(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("恭喜您，中奖了，请先汇款给某某激活您的账号");        //设置图标        builder.setSmallIcon(android.R.drawable.star_on);        //使用默认的闪光灯，铃声        builder.setDefaults(NotificationCompat.DEFAULT_ALL);        Notification notification=builder.build();        //发送通知        notificationManager.notify(0x101,notification);    }}

RingReceiver广播接收者

package com.example.cookie.android0723alarmone;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.example.cookie.android0723alarmone.RING".equals(intent.getAction())){            Log.i("test","响铃了！！！");            //跳转到activity中            Intent intent2=new Intent(context,RingActivity.class);            intent2.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);            context.startActivity(intent2);        }    }}

RingActivity闹钟播放

package com.example.cookie.android0723alarmone;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.example.cookie.android0723alarmone.RING".equals(intent.getAction())){            Log.i("test","响铃了！！！");            //跳转到activity中            Intent intent2=new Intent(context,RingActivity.class);            intent2.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);            context.startActivity(intent2);        }    }}

xml代码就不写了，还要记得去配置哈。。。