我正在使用java在android中制作一个应用程序，它在 map 上显示当前地址，并在gps关闭时发出警报。
public class LocationManagerCheck {
LocationManager locationManager;
Boolean locationServiceBoolean = false;
int providerType = 0;
static AlertDialog alert;
public LocationManagerCheck(Context context) {
locationManager = (LocationManager) context
.getSystemService(Context.LOCATION_SERVICE);
boolean gpsIsEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
boolean networkIsEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (networkIsEnabled == true && gpsIsEnabled == true) {
locationServiceBoolean = true;
providerType = 1;
} else if (networkIsEnabled != true && gpsIsEnabled == true) {
locationServiceBoolean = true;
providerType = 2;
} else if (networkIsEnabled == true && gpsIsEnabled != true) {
locationServiceBoolean = true;
providerType = 1;
}
}
public Boolean isLocationServiceAvailable() {
return locationServiceBoolean;
}
public int getProviderType() {
return providerType;
}
public void createLocationServiceError(final Activity activity) {
// show alert dialog if Internet is not connected
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setMessage(
"You need to activate location service to use this feature. Please turn on network or GPS mode in location settings")
.setTitle("LostyFound")
.setCancelable(false)
.setPositiveButton("Settings",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Intent intent = new Intent(
Settings.ACTION_LOCATION_SOURCE_SETTINGS);
activity.startActivity(intent);
dialog.dismiss();
}
})
.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
}
});
alert = builder.create();
alert.show();
}
我使用的代码仅在 Mapactivity 启动时显示警报，但在 activity 期间不显示警报。我只想在 GPS 关闭时向我显示警报 bo或者在 MapActivity 打开期间由用户禁用，请帮助我找到正确的代码，提前致谢。
最佳答案
您可能想知道用户是否打开/关闭 GPS。这个question可能有帮助
关于java - 当用户禁用 GPS 时如何在 MapActivity 上收到警报，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/58284517/