Android開發實例之鬧鐘提醒

本實例通過TimePickerDialog時間選擇對話框讓用戶設置鬧鐘，並通過AlarmManager全局定時器在指定的時間啟動鬧鐘Activity 。

程序運行效果圖：

實例代碼：

<喎?/kf/ware/vc/" target="_blank" class="keylink">vcD4KPHByZSBjbGFzcz0="brush:java;">package com.jph.alarm.test; import java.util.Calendar; import android.app.Activity; import android.app.AlarmManager; import android.app.PendingIntent; import android.app.Service; import android.app.TimePickerDialog; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TimePicker; import android.widget.Toast; /** * Describe:
*
簡單鬧鐘提醒 *
本實例通過TimePickerDialog時間選擇對話框 *
讓用戶設置鬧鐘並通過AlarmManager全局定時器 *
在指定的時間啟動鬧鐘Activity *
@author jph *
Date:2014.07.29 * */ 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.main); // 獲取程序界面的按鈕 setTime = (Button) findViewById(R.id.setTime); // 獲取AlarmManager對象 aManager = (AlarmManager) getSystemService( Service.ALARM_SERVICE); // 為“設置鬧鈴”按鈕綁定監聽器。 setTime.setOnClickListener(new OnClickListener() { @Override public void onClick(View source) { Calendar currentTime = Calendar.getInstance(); // 創建一個TimePickerDialog實例，並把它顯示出來。 new TimePickerDialog(AlarmTest.this, 0, // 綁定監聽器 new TimePickerDialog.OnTimeSetListener() { @Override public void onTimeSet(TimePicker tp, int hourOfDay, int minute) { // 指定啟動AlarmActivity組件 Intent intent = new Intent(); intent.setAction("com.jph.alarm.test.ACTION"); // 創建PendingIntent對象 PendingIntent pi = PendingIntent.getActivity( AlarmTest.this, 0, intent, 0); Calendar c = Calendar.getInstance(); // 根據用戶選擇時間來設置Calendar對象 c.set(Calendar.HOUR_OF_DAY, hourOfDay); c.set(Calendar.MINUTE, minute); // 設置AlarmManager將在Calendar對應的時間啟動指定組件 aManager.set(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pi); // 顯示鬧鈴設置成功的提示信息 Toast.makeText(AlarmTest.this, "鬧鈴設置成功啦" , Toast.LENGTH_SHORT).show(); } }, currentTime.get(Calendar.HOUR_OF_DAY), currentTime .get(Calendar.MINUTE), false).show(); } }); } }

package com.jph.alarm.test;

import java.util.Calendar;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.Service;
import android.app.TimePickerDialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TimePicker;
import android.widget.Toast;
/**
 * Describe:

 * 
簡單鬧鐘提醒
 * 
本實例通過TimePickerDialog時間選擇對話框
 * 
讓用戶設置鬧鐘並通過AlarmManager全局定時器
 * 
在指定的時間啟動鬧鐘Activity 
 * 
@author jph
 * 
Date:2014.07.29
 * */
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.main);
		// 獲取程序界面的按鈕
		setTime = (Button) findViewById(R.id.setTime);
		// 獲取AlarmManager對象
		aManager = (AlarmManager) getSystemService(
			Service.ALARM_SERVICE);
		// 為“設置鬧鈴”按鈕綁定監聽器。
		setTime.setOnClickListener(new OnClickListener()
		{
			@Override
			public void onClick(View source)
			{
				Calendar currentTime = Calendar.getInstance();
				// 創建一個TimePickerDialog實例，並把它顯示出來。
				new TimePickerDialog(AlarmTest.this, 0, // 綁定監聽器
					new TimePickerDialog.OnTimeSetListener()
					{
						@Override
						public void onTimeSet(TimePicker tp,
							int hourOfDay, int minute)
						{
							// 指定啟動AlarmActivity組件
							Intent intent = new Intent();
							intent.setAction("com.jph.alarm.test.ACTION");
							// 創建PendingIntent對象
							PendingIntent pi = PendingIntent.getActivity(
								AlarmTest.this, 0, intent, 0);
							Calendar c = Calendar.getInstance();
							// 根據用戶選擇時間來設置Calendar對象
							c.set(Calendar.HOUR_OF_DAY, hourOfDay);
							c.set(Calendar.MINUTE, minute);
							// 設置AlarmManager將在Calendar對應的時間啟動指定組件
							aManager.set(AlarmManager.RTC_WAKEUP,
								c.getTimeInMillis(), pi);							
							// 顯示鬧鈴設置成功的提示信息
							Toast.makeText(AlarmTest.this, "鬧鈴設置成功啦"
								, Toast.LENGTH_SHORT).show();
						}
					}, currentTime.get(Calendar.HOUR_OF_DAY), currentTime
						.get(Calendar.MINUTE), false).show();
			}
		});
	}	
}