Android locationManager.addProximityAlert是否需要位置侦听器
正如主题所说,我已经阅读了Android开发者指南,但并没有真正找到答案。如果您只想知道何时进入某个区域,则接近警报是否需要位置侦听器?我正在设置接近警报,如下所示:Android locationManager.addProximityAlert是否需要位置侦听器,android,locationmanager,proximity,Android,Locationmanager,Proximity,正如主题所说,我已经阅读了Android开发者指南,但并没有真正找到答案。如果您只想知道何时进入某个区域,则接近警报是否需要位置侦听器?我正在设置接近警报,如下所示: private void addProximityAlert(double latitude, double longitude) { Intent intent = new Intent(PROX_ALERT_INTENT); PendingIntent proximityIntent = Pe
private void addProximityAlert(double latitude, double longitude) {
Intent intent = new Intent(PROX_ALERT_INTENT);
PendingIntent proximityIntent = PendingIntent.getBroadcast(this, 0,
intent, 0);
locationManager.addProximityAlert(latitude, longitude, POINT_RADIUS,
PROX_ALERT_EXPIRATION, proximityIntent);
IntentFilter filter = new IntentFilter(PROX_ALERT_INTENT);
proxalert = new ProximityIntentReceiver();
registerReceiver(proxalert, filter);
}
addProximityAlert(SMASH_LAT, SMASH_LNG);
然后按如下方式调用该函数:
private void addProximityAlert(double latitude, double longitude) {
Intent intent = new Intent(PROX_ALERT_INTENT);
PendingIntent proximityIntent = PendingIntent.getBroadcast(this, 0,
intent, 0);
locationManager.addProximityAlert(latitude, longitude, POINT_RADIUS,
PROX_ALERT_EXPIRATION, proximityIntent);
IntentFilter filter = new IntentFilter(PROX_ALERT_INTENT);
proxalert = new ProximityIntentReceiver();
registerReceiver(proxalert, filter);
}
addProximityAlert(SMASH_LAT, SMASH_LNG);
问题是,我是否需要以下内容
locationManager.requestLocationUpdates(
// check every 10 minutes
low.getName(), MINIMUM_TIME_BETWEEN_UPDATE,
MINIMUM_DISTANCECHANGE_FOR_UPDATE, new MyLocationListener());
public class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location location) {
Location pointLocation = retrievelocation();
float distance = location.distanceTo(pointLocation);
// txted.setText("Distance: " + distance);
}
@Override
public void onStatusChanged(String s, int i, Bundle b) {
}
@Override
public void onProviderDisabled(String s) {
// try switching to a different provider
}
@Override
public void onProviderEnabled(String s) {
// try switching to a different provider
}
}
或者locationmanager是否已经处理网络/gps的位置更新,然后知道它何时在邻近区域?无需担心,您确实需要它,但它可以保持为空。抱歉@Evan R。您提出了问题,自己回答了。你从哪里找到解释的?你能说得更清楚些吗?有消息来源吗?