Ответ 1
В вашей деятельности:
private static final int REQUEST_FINE_LOCATION=0
...
loadPermissions(Manifest.permission.ACCESS_FINE_LOCATION,REQUEST_FINE_LOCATION);
Реализация:
private void loadPermissions(String perm,int requestCode) {
if (ContextCompat.checkSelfPermission(this, perm) != PackageManager.PERMISSION_GRANTED) {
if (!ActivityCompat.shouldShowRequestPermissionRationale(this, perm)) {
ActivityCompat.requestPermissions(this, new String[]{perm},requestCode);
}
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case REQUEST_FINE_LOCATION: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// granted
}
else{
// no granted
}
return;
}
}
}