<uses-permissionandroid:name="android.permission.SEND_SMS"/>

AlarmManager aManager=(AlarmManager)getSystemService(Context.ALARM_SERVICE);
Intent intent=new Intent(this,AlarmReceiver.class);
intent.setAction("AlarmReceiver");
PendingIntent pendingIntent=PendingIntent.getBroadcast(this, 0, intent, 0);
//aManager.set(AlarmManager.RTC, calendar.getTimeInMillis(), pendingIntent);
aManager.setRepeating(AlarmManager.RTC, 0, 60*1000, pendingIntent)

<receiver
android:name=".AlarmReceiver"
  android:label="@string/app_name">
  <intent-filter>
    <action android:name="AlarmReceiver" />
  </intent-filter>
</receiver>

SmsManager smsManager =SmsManager.getDefault();

smsManager.sendTextMessage(destinationAddress,scAddress, text, sentIntent, deliveryIntent)

public class YoulainaozhongActivity extends Activity {
  TextView onetextview;
  TextView twotextview;
  TextView threetextview;
  Button onebutton;
  Button twobutton;
  Dialog dialog = null;
  //新建日历对象，用来设置闹钟时间
  Calendar calendar = Calendar.getInstance();
  private SharedPreferences sharedPreferences;
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    calendar.setTimeInMillis(System.currentTimeMillis());
    LinearLayout relativeLayout =(LinearLayout) findViewById(R.id.LinearLayout);
      relativeLayout.setBackgroundResource(R.drawable.bejing);
    onebutton=(Button) findViewById(R.id.onebutton);
    onebutton.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        dialog();
      }
    });
    twobutton=(Button) findViewById(R.id.twobutton);
    twobutton.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        finish();
      }
    });
    onetextview=(TextView) findViewById(R.id.onetextview);
    twotextview=(TextView) findViewById(R.id.twotextview);
    threetextview=(TextView) findViewById(R.id.threetextview);
    sharedPreferences=getSharedPreferences("alarm_record", Activity.MODE_PRIVATE);
    AlarmManager aManager=(AlarmManager)getSystemService(Context.ALARM_SERVICE);
    Intent intent=new Intent(this,AlarmReceiver.class);
    intent.setAction("AlarmReceiver");
    PendingIntent pendingIntent=PendingIntent.getBroadcast(this, 0, intent, 0);
//   aManager.set(AlarmManager.RTC, calendar.getTimeInMillis(), pendingIntent);
    aManager.setRepeating(AlarmManager.RTC, 0, 60*1000, pendingIntent);
  }
  public void dialog(){
    View view=getLayoutInflater().inflate(R.layout.shijian, null);//
    final TimePicker timePicker=(TimePicker)view.findViewById(R.id.timepicker);
    final EditText oneeditext=(EditText)view.findViewById(R.id.oneeditext);
    final EditText twoeditext=(EditText)view.findViewById(R.id.twoeditext);
    timePicker.setIs24HourView(true);
    new AlertDialog.Builder(this)
    .setTitle("设置")
    .setView(view)
    .setPositiveButton("确定", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int which) {
    String timeStr=String.valueOf(timePicker.getCurrentHour())+":"+String.valueOf(timePicker.getCurrentMinute());
    /*calendar.set(Calendar.HOUR_OF_DAY,timePicker.getCurrentHour());
    calendar.set(Calendar.MINUTE, 55);*/
    onetextview.setText("您设置的时间为: "+timeStr);
    twotextview.setText("您设置的号码为: "+oneeditext.getText().toString());
    threetextview.setText("您设置的内容为: "+twoeditext.getText().toString());
    sharedPreferences.edit().putString(timeStr, timeStr).commit();
    sharedPreferences.edit().putString("haoma", oneeditext.getText().toString()).commit();
    sharedPreferences.edit().putString("neirong", twoeditext.getText().toString()).commit();
    }
    }).setNegativeButton("取消", null).show();
  }
}
public class AlarmReceiver extends BroadcastReceiver {
  /**
   * 通过广播进行扫描，是否到达时间后再响起闹铃
   * */
  @Override
  public void onReceive(Context context, Intent intent) {
    SharedPreferences sharedPreferences = context.getSharedPreferences(
        "alarm_record", Activity.MODE_PRIVATE);
    String hour = String.valueOf(Calendar.getInstance().get(
        Calendar.HOUR_OF_DAY));
    String minute = String.valueOf(Calendar.getInstance().get(
        Calendar.MINUTE));
    String time = sharedPreferences.getString(hour + ":" + minute, null);// 小时与分，
    String haoma = sharedPreferences.getString("haoma", null);
    String neirong = sharedPreferences.getString("neirong", null);
    if (time != null) {// 判断是否为空，然后通过创建，
//     MediaPlayer mediaPlayer = MediaPlayer.create(context, R.raw.a);
      Toast.makeText(context, "短信已经发送成功", Toast.LENGTH_LONG).show();
//     mediaPlayer.start();// 开始 ;
      sendMsg(haoma, neirong);
    }
  }
  private void sendMsg(String number, String message) {
    SmsManager smsManager = SmsManager.getDefault();
    smsManager.sendTextMessage(number, null, message, null, null);
  }
}