ANDROID 闹钟

package com.yarin.android.Examples_07_07;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.widget.Toast;public class AlarmReceiver extends BroadcastReceiver{public void onReceive(Context context, Intent intent){Toast.makeText(context, "你设置的闹钟时间到了", Toast.LENGTH_LONG).show();}}

 

package com.yarin.android.Examples_07_07;import java.util.Calendar;import android.app.Activity;import android.app.AlarmManager;import android.app.PendingIntent;import android.app.TimePickerDialog;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.TextView;import android.widget.TimePicker;public class Activity01 extends Activity{ButtonmButton1;ButtonmButton2;TextView mTextView;Calendar calendar;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);calendar=Calendar.getInstance();mTextView=(TextView)findViewById(R.id.TextView01);mButton1=(Button)findViewById(R.id.Button01);mButton2=(Button)findViewById(R.id.Button02);mButton1.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { calendar.setTimeInMillis(System.currentTimeMillis()); int mHour=calendar.get(Calendar.HOUR_OF_DAY); int mMinute=calendar.get(Calendar.MINUTE); new TimePickerDialog(Activity01.this, new TimePickerDialog.OnTimeSetListener() { public void onTimeSet(TimePicker view,int hourOfDay,int minute) { calendar.setTimeInMillis(System.currentTimeMillis()); calendar.set(Calendar.HOUR_OF_DAY,hourOfDay); calendar.set(Calendar.MINUTE,minute); calendar.set(Calendar.SECOND,0); calendar.set(Calendar.MILLISECOND,0); /* 建立Intent和PendingIntent，来调用目标组件 */ Intent intent = new Intent(Activity01.this, AlarmReceiver.class); PendingIntent pendingIntent=PendingIntent.getBroadcast(Activity01.this,0, intent, 0); AlarmManager am; /* 获取闹钟管理的实例 */ am = (AlarmManager)getSystemService(ALARM_SERVICE); /* 设置闹钟 */ am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent); /* 设置周期闹 */ am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (10*1000), (24*60*60*1000), pendingIntent); String tmpS="设置闹钟时间为"+format(hourOfDay)+":"+format(minute); mTextView.setText(tmpS); } },mHour,mMinute,true).show(); } }); mButton2.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(Activity01.this, AlarmReceiver.class); PendingIntent pendingIntent=PendingIntent.getBroadcast(Activity01.this,0, intent, 0); AlarmManager am; /* 获取闹钟管理的实例 */ am =(AlarmManager)getSystemService(ALARM_SERVICE); /* 取消 */ am.cancel(pendingIntent); mTextView.setText("闹钟已取消！"); } });}/* 格式化字符串(7:3->07:03) */private String format(int x){String s = "" + x;if (s.length() == 1)s = "0" + s;return s;}}