AlarmManager可定时响起的闹钟

三部分

1.MyClock.java(设置界面)

2.CallAlarm.java(BroadcastReceiver)

3.AlarmAlert.java(闹钟响应)

 

1.MyClock.java(设置界面)

 

private EditText etHour1, etMinute1, etHour2, etMinute2;
	private TextView txTime1, txTime2;
	private Button buSet1, buCancel1, buSet2, buCancel2;

	private Calendar calendar = Calendar.getInstance();

	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.my_clock);

		etHour1 = (EditText) findViewById(R.id.editText1);
		etMinute1 = (EditText) findViewById(R.id.editText2);
		etHour2 = (EditText) findViewById(R.id.editText3);
		etMinute2 = (EditText) findViewById(R.id.editText4);

		txTime1 = (TextView) findViewById(R.id.textView1);
		txTime2 = (TextView) findViewById(R.id.textView2);

		buSet1 = (Button) findViewById(R.id.button1);
		buCancel1 = (Button) findViewById(R.id.button2);
		buSet2 = (Button) findViewById(R.id.button3);
		buCancel2 = (Button) findViewById(R.id.button4);

		calendar.setTimeInMillis(System.currentTimeMillis());
		etHour1.setText(calendar.get(Calendar.HOUR_OF_DAY) + "");
		etMinute1.setText(calendar.get(Calendar.MINUTE) + "");
		etHour2.setText(calendar.get(Calendar.HOUR_OF_DAY) + "");
		etMinute2.setText(calendar.get(Calendar.MINUTE) + "");

		buSet1.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				int hour = Integer.parseInt(etHour1.getText().toString());
				int minute = Integer.parseInt(etMinute1.getText().toString());
				
				calendar.set(Calendar.HOUR_OF_DAY, hour);
				calendar.set(Calendar.MINUTE, minute);
				calendar.set(Calendar.SECOND, 0);
				calendar.set(Calendar.MILLISECOND, 0);

				Intent intent = new Intent(MyClock.this, CallAlarm.class); /* 建立PendingIntent */
				//注意第二个参数为0
				PendingIntent sender = PendingIntent.getBroadcast(MyClock.this,
						0, intent, 0);
				AlarmManager am;
				am = (AlarmManager) getSystemService(ALARM_SERVICE);
				//设置单次闹钟
				am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), sender); /* 更新显示的设定闹钟时间 */
				String tmpS = format(hour) + "：" + format(minute);
				txTime1.setText(tmpS); /* 以Toast提示设定已完成 */
				Toast.makeText(MyClock.this, "设定闹钟时间为" + tmpS,
						Toast.LENGTH_SHORT).show();
			}

		});

		buSet2.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				int hour = Integer.parseInt(etHour2.getText().toString());
				int minute = Integer.parseInt(etMinute2.getText().toString());
				
				calendar.set(Calendar.HOUR_OF_DAY, hour);
				calendar.set(Calendar.MINUTE, minute);
				calendar.set(Calendar.SECOND, 0);
				calendar.set(Calendar.MILLISECOND, 0);

				Intent intent = new Intent(MyClock.this, CallAlarm.class); /* 建立PendingIntent */
				//注意第二个参数为1
				PendingIntent sender = PendingIntent.getBroadcast(MyClock.this,
						1, intent, 0);
				AlarmManager am;
				//设置重复闹钟
				am = (AlarmManager) getSystemService(ALARM_SERVICE);
				am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),15000, sender); /* 设定重复闹钟时间 */
				String tmpS = format(hour) + "：" + format(minute);
				txTime2.setText(tmpS); /* 以Toast提示设定已完成 */
				Toast.makeText(MyClock.this, "设定重复闹钟时间为" + tmpS,
						Toast.LENGTH_SHORT).show();
			}

		});
		
		buCancel1.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				Intent intent = new Intent(MyClock.this, CallAlarm.class); /* 建立PendingIntent */
				//注意第二个参数为0
				PendingIntent sender = PendingIntent.getBroadcast(MyClock.this,
						0, intent, 0);
				AlarmManager am;
				am = (AlarmManager) getSystemService(ALARM_SERVICE);
				am.cancel(sender);
				Toast.makeText(MyClock.this, "单次闹钟已解除",
						Toast.LENGTH_SHORT).show();
			}
			
		});
		
		buCancel2.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				Intent intent = new Intent(MyClock.this, CallAlarm.class); /* 建立PendingIntent */
				//注意第二个参数为1
				PendingIntent sender = PendingIntent.getBroadcast(MyClock.this,
						1, intent, 0);
				AlarmManager am;
				am = (AlarmManager) getSystemService(ALARM_SERVICE);
				am.cancel(sender);
				Toast.makeText(MyClock.this, "重复闹钟已解除",
						Toast.LENGTH_SHORT).show();
			}
			
		});
	}

	private String format(int x) {
		String s = "" + x;
		if (s.length() == 1)
			s = "0" + s;
		return s;
	}

 2.CallAlarm.java(BroadcastReceiver)

 

public class CallAlarm extends BroadcastReceiver {
	@Override
	public void onReceive(Context context, Intent intent) {
		Intent i = new Intent(context, AlarmAlert.class);
		i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		context.startActivity(i);
	}
}

 3.AlarmAlert.java(闹钟响应)

 

public class AlarmAlert extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState); /* 跳出的闹铃警示 */
		new AlertDialog.Builder(AlarmAlert.this)
				.setIcon(R.drawable.clock)
				.setTitle("闹钟响了!!")
				.setMessage("赶快起床吧!!!")
				.setPositiveButton("关掉他",
						new DialogInterface.OnClickListener() {
							public void onClick(DialogInterface dialog,
									int whichButton) { /* 关闭Activity */
								AlarmAlert.this.finish();
							}
						}).show();
	}
}

 

manifest.xml

<activity
			android:name=".MyClock"
			android:label="@string/app_name">
		</activity>
		
		<activity
			android:name=".AlarmAlert"
			android:label="@string/app_name">
		</activity>

		<receiver
			android:name=".CallAlarm"
			android:process=":remote" />