此代码来自 Udemy 的教师代码，用于练习。问题是这个
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
错误说:调用需要可能被用户拒绝的权限:代码应显式检查权限是否可用(使用
checkPermission )或显式处理潜在的 SecurityException if (Build.VERSION.SDK_INT < 23) {
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
} else {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 1);
} else {
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
Location lastKnownLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
LatLng userLocation = new LatLng(lastKnownLocation.getLatitude(), lastKnownLocation.getLongitude());
mMap.clear();
mMap.addMarker(new MarkerOptions().position(userLocation).title("Your Location"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(userLocation));
}
}
错误行在 if 语句中!
最佳答案
如果您使用 Marshmallow，则需要检查用户是否已授予每个位置调用的权限。请看这里。可能是您的代码看起来像这样。
if (ContextCompat.checkSelfPermission(this,android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
{
ActivityCompat.requestPermissions(
这，
新字符串 [] { android.Manifest.permission.ACCESS_COARSE_LOCATION },
LocationService.MY_PERMISSION_ACCESS_COURSE_LOCATION
);
}
关于java - 错误 : requestLocationUpdate GPS provider，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57648491/