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public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
if (requestCode == REQUEST_PERMISSION) {
// for each permission check if the user granted/denied them
// you may want to group the rationale in a single dialog,
// this is just an example
for (int i = 0, len = permissions.length; i < len; i++) {
String permission = permissions[i];
if (grantResults[i] == PackageManager.PERMISSION_DENIED) {
// user rejected the permission
boolean showRationale = shouldShowRequestPermissionRationale( permission );
if (! showRationale) {
// user also CHECKED "never ask again"
// you can either enable some fall back,
// disable features of your app
// or open another dialog explaining
// again the permission and directing to
// the app setting
} else if (Manifest.permission.WRITE_CONTACTS.equals(permission)) {
showRationale(permission, R.string.permission_denied_contacts);
// user did NOT check "never ask again"
// this is a good place to explain the user
// why you need the permission and ask if he wants
// to accept it (the rationale)
} else if ( /* possibly check more permissions...*/ ) {
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