我正在开发一个应用程序在Android操作系统。我不知道如何检查位置服务是否启用。
我需要一个方法,如果它们被启用,返回“true”,如果没有“false”(所以在最后一种情况下,我可以显示一个对话框来启用它们)。
我正在开发一个应用程序在Android操作系统。我不知道如何检查位置服务是否启用。
我需要一个方法,如果它们被启用,返回“true”,如果没有“false”(所以在最后一种情况下,我可以显示一个对话框来启用它们)。
当前回答
public class LocationUtil {
private static final String TAG = LocationUtil.class.getSimpleName();
public static LocationManager getLocationManager(final Context context) {
return (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
}
public static boolean isNetworkProviderEnabled(final Context context) {
return getLocationManager(context).isProviderEnabled(LocationManager.NETWORK_PROVIDER);
}
public static boolean isGpsProviderEnabled(final Context context) {
return getLocationManager(context).isProviderEnabled(LocationManager.GPS_PROVIDER);
}
// Returns true even if the location services are disabled. Do not use this method to detect location services are enabled.
private static boolean isPassiveProviderEnabled(final Context context) {
return getLocationManager(context).isProviderEnabled(LocationManager.PASSIVE_PROVIDER);
}
public static boolean isLocationModeOn(final Context context) throws Exception {
int locationMode = Settings.Secure.getInt(context.getContentResolver(), Settings.Secure.LOCATION_MODE);
return locationMode != Settings.Secure.LOCATION_MODE_OFF;
}
public static boolean isLocationEnabled(final Context context) {
try {
return isNetworkProviderEnabled(context) || isGpsProviderEnabled(context) || isLocationModeOn(context);
} catch (Exception e) {
Log.e(TAG, "[isLocationEnabled] error:", e);
}
return false;
}
public static void gotoLocationSettings(final Activity activity, final int requestCode) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
activity.startActivityForResult(intent, requestCode);
}
public static String getEnabledProvidersLogMessage(final Context context){
try{
return "[getEnabledProvidersLogMessage] isNetworkProviderEnabled:"+isNetworkProviderEnabled(context) +
", isGpsProviderEnabled:" + isGpsProviderEnabled(context) +
", isLocationModeOn:" + isLocationModeOn(context) +
", isPassiveProviderEnabled(ignored):" + isPassiveProviderEnabled(context);
}catch (Exception e){
Log.e(TAG, "[getEnabledProvidersLogMessage] error:", e);
return "provider error";
}
}
}
使用isLocationEnabled方法检测位置服务是否已启用。
https://github.com/Polidea/RxAndroidBle/issues/327#页面将提供更多信息为什么不使用被动提供程序,而是使用定位模式。
其他回答
private boolean isGpsEnabled()
{
LocationManager service = (LocationManager) getSystemService(LOCATION_SERVICE);
return service.isProviderEnabled(LocationManager.GPS_PROVIDER)&&service.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
}
在我看来,这个if子句很容易检查位置服务是否可用:
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if(!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER) && !locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {
//All location services are disabled
}
迁移到AndroidX并使用
implementation 'androidx.appcompat:appcompat:1.3.0'
并使用LocationManagerCompat
在Java中
private boolean isLocationEnabled(Context context) {
LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
return LocationManagerCompat.isLocationEnabled(locationManager);
}
在Kotlin
private fun isLocationEnabled(context: Context): Boolean {
val locationManager = context.getSystemService(Context.LOCATION_SERVICE) as LocationManager
return LocationManagerCompat.isLocationEnabled(locationManager)
}
如果你正在使用AndroidX,使用下面的代码来检查位置服务是否启用:
fun isNetworkServiceEnabled(context: Context) = LocationManagerCompat.isLocationEnabled(context.getSystemService(LocationManager::class.java))
能用最简单的方法做吗
private boolean isLocationEnabled(Context context){
int mode =Settings.Secure.getInt(context.getContentResolver(), Settings.Secure.LOCATION_MODE,
Settings.Secure.LOCATION_MODE_OFF);
final boolean enabled = (mode != android.provider.Settings.Secure.LOCATION_MODE_OFF);
return enabled;
}