Android(安卓)实现自定义闹钟

闹钟是手机中非常常用的应用，当然我们也可以实现它

在闹钟中分为一次闹钟和周期闹钟，顾名思义，一次闹钟就会响一次后就失效，周期闹钟就是隔一段时间后会再次响铃。

今天就给大家分享两种闹钟的基本代码：

activity_main.xml

<?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:layout_height="match_parent"    tools:context="com.example.android27_zhangkai_alarm_notification.MainActivity">    <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>LinearLayout>

MainActivity.Java

package com.example.android27_zhangkai_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 am;    @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);    }    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);        //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);                //设置闹钟                PendingIntent pendingIntent=PendingIntent.getBroadcast(MainActivity.this,0x101,new Intent("com.example.android27_zhangkai_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.获取到时间      hourOfDay       minute                //3.设置闹钟                PendingIntent 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);//设置五秒响一次            }        },hour,minute,true);        timePickerDialog.show();    }    public void cancelAlarmRepeat(View view){          am.cancel(pendingIntent);    }}

因为设置闹钟的页面和闹钟响铃的页面为两个Activity，所以我在此运用了广播的技术，当闹钟时间到了，触发服务发送广播给响铃的页面，然后开始响铃。

服务页面：

package com.example.android27_zhangkai_alarm_notification;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;/** * Created by Administrator on 2017/7/23 0023. */public class RingReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        if ("com.example.android27_zhangkai_alarm_notification.RING".equals(intent.getAction())){            Intent intent1=new Intent(context,RingActivity.class);            intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);            context.startActivity(intent1);        }    }}123456789101112131415161718192021123456789101112131415161718192021响铃页面：<?xml version="1.0" encoding="utf-8"?>"http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent">    "wrap_content"        android:layout_height="wrap_content"        android:text="懒PIG，该出窝了！！！"        android:textSize="40sp"        />

记得要在配置页面配置服务哟

<receiver android:name=".RingReceiver"            android:enabled="true"            android:exported="true"            >            <intent-filter>                <action android:name="com.example.android27_zhangkai_alarm_notification.RING">action>            intent-filter>        receiver>

更多相关文章

随机推荐