android11 在Settings中增加定时开机和定时关机的功能和交互界面具体代码实现
时间: 2024-03-05 20:54:33 浏览: 19
Android 11中增加了定时开机和定时关机的功能,具体实现如下:
1. 定时开机:
在Settings应用中,定时开机的交互界面是通过`TimedPowerOnSettings`类实现的。在`TimedPowerOnSettings`类中,定义了一个`TimePickerDialog.OnTimeSetListener`接口,用于监听用户设置的开机时间。还定义了一个`AlarmManager`对象,用于设置定时开机的闹钟。具体代码如下:
```java
public class TimedPowerOnSettings extends SettingsPreferenceFragment implements
TimePickerDialog.OnTimeSetListener {
private static final String TAG = "TimedPowerOnSettings";
private static final int ALARM_ID = 100;
private AlarmManager mAlarmManager;
private TimePickerPreference mTimePickerPreference;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.timed_power_on_settings);
mTimePickerPreference = (TimePickerPreference) findPreference(KEY_TIMED_POWER_ON);
mAlarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
}
@Override
public boolean onPreferenceTreeClick(Preference preference) {
if (preference == mTimePickerPreference) {
showTimePickerDialog();
return true;
}
return super.onPreferenceTreeClick(preference);
}
private void showTimePickerDialog() {
TimePickerDialog dialog = new TimePickerDialog(
getActivity(),
this,
Calendar.getInstance().get(Calendar.HOUR_OF_DAY),
Calendar.getInstance().get(Calendar.MINUTE),
DateFormat.is24HourFormat(getActivity()));
dialog.show();
}
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, hourOfDay);
calendar.set(Calendar.MINUTE, minute);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
if (calendar.getTimeInMillis() <= System.currentTimeMillis()) {
calendar.add(Calendar.DAY_OF_MONTH, 1);
}
mAlarmManager.setExact(
AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(),
PendingIntent.getBroadcast(
getActivity(),
ALARM_ID,
new Intent("android.intent.action.ACTION_SHUTDOWN"),
PendingIntent.FLAG_UPDATE_CURRENT));
Toast.makeText(getActivity(), R.string.timed_power_on_set_successfully, Toast.LENGTH_SHORT).show();
}
}
```
2. 定时关机:
在Settings应用中,定时关机的交互界面是通过`TimedPowerOffSettings`类实现的。在`TimedPowerOffSettings`类中,定义了一个`TimePickerDialog.OnTimeSetListener`接口,用于监听用户设置的关机时间。还定义了一个`AlarmManager`对象,用于设置定时关机的闹钟。具体代码如下:
```java
public class TimedPowerOffSettings extends SettingsPreferenceFragment implements
TimePickerDialog.OnTimeSetListener {
private static final String TAG = "TimedPowerOffSettings";
private static final int ALARM_ID = 101;
private AlarmManager mAlarmManager;
private TimePickerPreference mTimePickerPreference;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.timed_power_off_settings);
mTimePickerPreference = (TimePickerPreference) findPreference(KEY_TIMED_POWER_OFF);
mAlarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
}
@Override
public boolean onPreferenceTreeClick(Preference preference) {
if (preference == mTimePickerPreference) {
showTimePickerDialog();
return true;
}
return super.onPreferenceTreeClick(preference);
}
private void showTimePickerDialog() {
TimePickerDialog dialog = new TimePickerDialog(
getActivity(),
this,
Calendar.getInstance().get(Calendar.HOUR_OF_DAY),
Calendar.getInstance().get(Calendar.MINUTE),
DateFormat.is24HourFormat(getActivity()));
dialog.show();
}
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, hourOfDay);
calendar.set(Calendar.MINUTE, minute);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
if (calendar.getTimeInMillis() <= System.currentTimeMillis()) {
calendar.add(Calendar.DAY_OF_MONTH, 1);
}
mAlarmManager.setExact(
AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(),
PendingIntent.getBroadcast(
getActivity(),
ALARM_ID,
new Intent("android.intent.action.ACTION_REQUEST_SHUTDOWN"),
PendingIntent.FLAG_UPDATE_CURRENT));
Toast.makeText(getActivity(), R.string.timed_power_off_set_successfully, Toast.LENGTH_SHORT).show();
}
}
```