我正在开发一个警报，它以时间定义的间隔振动。因此，如果我选择 5 秒，应用程序将每隔 5 秒振动一次。但我需要停止、暂停和恢复应用程序。
这是我的课：
public class AndroidAlarmService extends Activity {
private PendingIntent pendingIntent;
private Chronometer chronometer;
private Intent myIntent;
AlarmManager alarmManager;
Calendar calendar;
private long mTimeWhenStopped;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button buttonStart = (Button) findViewById(R.id.startalarm);
Button buttonStop = (Button) findViewById(R.id.stopalarm);
Button buttonPause = (Button) findViewById(R.id.pausealarm);
Button buttonResume = (Button) findViewById(R.id.resumealarm);
chronometer = ((Chronometer) findViewById(R.id.clock_time));
myIntent = new Intent(AndroidAlarmService.this,
MyAlarmService.class);
pendingIntent = PendingIntent.getService(
AndroidAlarmService.this, 0, myIntent, 0);
alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
calendar = Calendar.getInstance();
我用这种方法启动它：
buttonStart.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View arg0) {
int initialValue = 0;
chronometer.setBase(SystemClock.elapsedRealtime() + initialValue);
chronometer.start();
calendar.setTimeInMillis(System.currentTimeMillis());
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(), 5 * 1000, pendingIntent);
Toast.makeText(AndroidAlarmService.this, "Start Alarm",
Toast.LENGTH_LONG).show();
}
});
这用于暂停：
buttonPause.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View arg0) {
stopRunning();
mTimeWhenStopped = chronometer.getBase() - SystemClock.elapsedRealtime();
// Tell the user about what we did.
Toast.makeText(AndroidAlarmService.this, "Resume!",
Toast.LENGTH_LONG).show();
}
});
我想从应用程序的启动点恢复应用程序。我怎样才能做到这一点？
谢谢！