做公众号商城原型的网站,贵州建设厅考试网站二建成绩查询,广东天宸网络科技有限公司,微网站 模板需求#xff1a;新的平台要实现关机启动#xff0c;所以要了解一下闹钟的机制
这个链接写得比较详细#xff08;我只是动手试了试#xff0c;毕竟应用不是专长#xff09;#xff1a;http://www.cnblogs.com/mengdd/p/3819806.html
#xff11;、AlarmManager 这个是…需求新的平台要实现关机启动所以要了解一下闹钟的机制
这个链接写得比较详细我只是动手试了试毕竟应用不是专长http://www.cnblogs.com/mengdd/p/3819806.html
、AlarmManager 这个是闹钟的核心
里面有void set函数void setInexactRepeating函数 通过这些函数来设置 源码链接http://download.csdn.net/detail/weiqifa0/9173341
设置闹钟的代码
package com.example.helloworld; import java.util.Calendar; import android.os.Bundle; import android.app.Activity; import android.app.AlarmManager; import android.app.PendingIntent; import android.app.Service; import android.app.TimePickerDialog; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.util.Log; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TimePicker; import android.widget.Toast; public class AlarmTest extends Activity { Button setTime; AlarmManager aManager; Calendar currentTime Calendar.getInstance(); Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); setTime (Button) findViewById(R.id.setTime); aManager (AlarmManager) getSystemService( Service.ALARM_SERVICE); setTime.setOnClickListener(new OnClickListener() { Override public void onClick(View source) { Calendar currentTime Calendar.getInstance(); new TimePickerDialog(AlarmTest.this, 0, new TimePickerDialog.OnTimeSetListener() { Override public void onTimeSet(TimePicker tp, int hourOfDay, int minute) { Intent intent new Intent(AlarmTest.this, AlarmActivity.class); PendingIntent pi PendingIntent.getActivity( AlarmTest.this, 0, intent, 0); Calendar c Calendar.getInstance(); c.set(Calendar.HOUR, hourOfDay); c.set(Calendar.MINUTE, minute); aManager.set(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pi); //这个是代码的核心部分 Toast.makeText(AlarmTest.this, 设置闹钟成功 , Toast.LENGTH_SHORT).show(); } }, currentTime.get(Calendar.HOUR_OF_DAY), currentTime .get(Calendar.MINUTE), false).show(); } }); } } 到时后就会去启动另一个Activity ,核心代码如下
package com.example.helloworld; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.media.MediaPlayer; import android.os.Bundle; import android.widget.Toast; /** * Description: * br/վ: a hrefhttp://www.crazyit.orgJava/a * br/Copyright (C), 2001-2014, Yeeku.H.Lee * br/This program is protected by copyright laws. * br/Program Name: * br/Date: * author Yeeku.H.Lee kongyeeku163.com * version 1.0 */ public class AlarmActivity extends Activity { MediaPlayer alarmMusic; Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Toast.makeText(AlarmActivity.this, 设置闹钟时间到 , Toast.LENGTH_SHORT).show(); new AlertDialog.Builder(AlarmActivity.this).setTitle() .setMessage(,) .setPositiveButton(, new OnClickListener() { Override public void onClick(DialogInterface dialog, int which) { // ֹͣ //alarmMusic.stop(); // Activity //疯狂android里面显示的声音 简单的用法我把声音去掉了 AlarmActivity.this.finish(); } }).show(); } } AndroidMainfest.xml的代码每一个Activity都要在里面注册我第一次写的时候没有注册结果启动不成功
?xml version1.0 encodingutf-8? manifest xmlns:androidhttp://schemas.android.com/apk/res/android packagecom.example.helloworld android:versionCode1 android:versionName1.0 uses-sdk android:minSdkVersion8 android:targetSdkVersion18 / application android:allowBackuptrue android:icondrawable/ic_launcher android:labelstring/app_name android:themestyle/AppTheme activity android:namecom.example.helloworld.AlarmTest android:labelstring/app_name intent-filter action android:nameandroid.intent.action.MAIN / category android:nameandroid.intent.category.LAUNCHER / /intent-filter /activity activity android:name.AlarmActivity/ //刚开始忘记了这行代码 /application /manifest
