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MainActivity如下:

package cc.testsms;import java.util.Calendar;import java.util.Locale;import android.app.Activity;import android.app.AlarmManager;import android.app.DatePickerDialog;import android.app.Dialog;import android.app.PendingIntent;import android.app.TimePickerDialog;import android.content.Context;import android.content.Intent;import android.os.Bundle;import android.text.TextUtils;import android.view.View;import android.widget.Button;import android.widget.DatePicker;import android.widget.EditText;import android.widget.TimePicker;import android.widget.Toast;/** * Demo描述: * 手机定时发送短信的实现 *  * 参考资料: * 1 http://blog.csdn.net/pku_android/article/details/7548385 * 2 http://blog.csdn.net/zjbpku/article/details/7577590 *   Thank you very much *    *  暂存问题: *  1 设置定时短信后关机重启,定时短信失效 *    可以考虑将定时短信存入数据库或者本地 *  2 连续多次设置定时短信,但只有最后一个会被触发. *     解决方式可以参见闹钟的源码. */public class MainActivity extends Activity {	public int year;	public int month;	public int day;	public int hour;	public int minute;	public int timedYear;	public int timedMonth;	public int timedDay;	public int timedHour;	public int timedMinute;	private Context mContext;	public Calendar calendar;	private Button mDatePickerButton;	private Button mTimePickerButton;	private EditText mContentEditText;	private Button mSendButton;	private Button mCancelButton;	public final static int DATE_PICKER = 9527;	public final static int TIME_PICKER = 9528;	public DatePickerDialog mDatePickerDialog;	public TimePickerDialog mTimePickerDialog;	private PendingIntent mTimedMessagePendingIntent=null;	private DatePickerDialog.OnDateSetListener mDateSetListener;	private TimePickerDialog.OnTimeSetListener mTimeSetListener;	public boolean isCreatePickerDialog = true;	private AlarmManager mAlarmManager;	@Override	public void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.main);		init();	}	private void init() {		mContext=this;		mAlarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);				mContentEditText = (EditText) findViewById(R.id.contentEditText);		mSendButton = (Button) findViewById(R.id.sendButton);		mSendButton.setOnClickListener(new OnClickListenerImpl());				mDatePickerButton = (Button) findViewById(R.id.datePickButton);		mDatePickerButton.setOnClickListener(new OnClickListenerImpl());		mTimePickerButton = (Button) findViewById(R.id.timePickButton);		mTimePickerButton.setOnClickListener(new OnClickListenerImpl());				mCancelButton=(Button) findViewById(R.id.cancelButton);		mCancelButton.setOnClickListener(new OnClickListenerImpl());		// 监听DatePicker的set按钮		mDateSetListener = new DatePickerDialog.OnDateSetListener() {			@Override			public void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth) {				//保存定时短信的年月日				System.out.println("---> DatePicker设置后: year=" + year + ", month="+ monthOfYear + ",day=" + dayOfMonth);				timedYear=year;				timedMonth=monthOfYear;				timedDay=dayOfMonth;			}		};		// 监听TimePicker的set按钮		mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {			@Override			public void onTimeSet(TimePicker view, int hourOfDay, int minute) {				//保存定时短信的时分				System.out.println("---> TimePicker设置后: hour=" + hourOfDay + ",minute="+ minute);				timedHour=hourOfDay;				timedMinute=minute;			}		};	}	private class OnClickListenerImpl implements View.OnClickListener {		@Override		public void onClick(View v) {			switch (v.getId()) {			case R.id.datePickButton:				showDialog(DATE_PICKER);				break;			case R.id.timePickButton:				showDialog(TIME_PICKER);				break;			case R.id.sendButton:				sendTimedMessage();				break;			case R.id.cancelButton:				cancelTiimedMessage();				break;			default:				break;			}		}	}	// 覆写Activty的onCreateDialog(int id)方法	// 注意:	// 1 第一次显示pickerDialog的时候会调用onCreateDialog()和onPrepareDialog()	// 2 随后每次只会调用onPrepareDialog()方法	// 所以需要在onPrepareDialog()方法中获取最新时间再设置	@Override	protected Dialog onCreateDialog(int id) {		getCurrentTime();		switch (id) {		case DATE_PICKER:			mDatePickerDialog = new DatePickerDialog(this, mDateSetListener,year, month, day);			return mDatePickerDialog;		case TIME_PICKER:			mTimePickerDialog = new TimePickerDialog(this, mTimeSetListener,hour, minute, true);			return mTimePickerDialog;		default:			break;		}		return super.onCreateDialog(id);	}	// 覆写Activty的onPrepareDialog(int id, Dialog dialog)方法	@Override	protected void onPrepareDialog(int id, Dialog dialog) {		super.onPrepareDialog(id, dialog);		if (!isCreatePickerDialog) {			getCurrentTime();			switch (id) {			case DATE_PICKER:				mDatePickerDialog.updateDate(year, month, day);				break;			case TIME_PICKER:				mTimePickerDialog.updateTime(hour, minute);				break;			default:				break;			}		}		isCreatePickerDialog = false;	}    //发送定时短信	private void sendTimedMessage() {		String content = mContentEditText.getText().toString();		if (!TextUtils.isEmpty(content)) {			Intent intent=new Intent(this,AlarmBroadcastReceiver.class);			intent.setAction("alarmBroadcastReceiverAction");			intent.putExtra("content", content);			mTimedMessagePendingIntent=PendingIntent.getBroadcast(this, 0, intent, 0);			//设置定时时间			Calendar calendar = Calendar.getInstance();			calendar.set(Calendar.YEAR, timedYear);			calendar.set(Calendar.MONTH, timedMonth);			calendar.set(Calendar.DAY_OF_MONTH, timedDay);			calendar.set(Calendar.HOUR_OF_DAY, timedHour);			calendar.set(Calendar.MINUTE, timedMinute);			if (calendar.getTimeInMillis()<=System.currentTimeMillis()) {				Toast.makeText(mContext, "请重新设置时间", Toast.LENGTH_SHORT).show();			} else {				Toast.makeText(mContext, "成功设置定时短信", Toast.LENGTH_SHORT).show();				mAlarmManager.set(AlarmManager.RTC, calendar.getTimeInMillis(), mTimedMessagePendingIntent);			}		}	}		//取消定时短信	private void cancelTiimedMessage(){		if(mTimedMessagePendingIntent!=null){			mAlarmManager.cancel(mTimedMessagePendingIntent);			Toast.makeText(mContext, "取消定时短信", Toast.LENGTH_SHORT).show();		}	}	private void getCurrentTime() {		// 设置时间为中国		calendar = Calendar.getInstance(Locale.CHINA);		// 获取日期		year = calendar.get(Calendar.YEAR);		month = calendar.get(Calendar.MONTH);		day = calendar.get(Calendar.DAY_OF_MONTH);		hour = calendar.get(Calendar.HOUR_OF_DAY);		minute = calendar.get(Calendar.MINUTE);		System.out.println("-----> 获取当前时间 year=" + year + ",month=" + month+ 				           ",day=" + day + ",hour=" + hour + ",minute=" + minute);	}}

package cc.testsms;import java.util.ArrayList;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.telephony.SmsManager;import android.widget.Toast;public class AlarmBroadcastReceiver extends BroadcastReceiver{	private final String TELPHONE_NUMBER="10086";	@Override	public void onReceive(Context context, Intent intent) {		SmsManager manager = SmsManager.getDefault();		String content=intent.getStringExtra("content");		System.out.println("-----> 收到广播 content="+content);		ArrayList
   
     messages = manager.divideMessage(content);		for (String everyMessage : messages) {			manager.sendTextMessage(TELPHONE_NUMBER, null, everyMessage, null,null);		}		Toast.makeText(context, "已经发送定时短信", Toast.LENGTH_SHORT).show();	}}
   

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