Java tutorial
// Copyright 2019 Citra Emulator Project // Licensed under GPLv2 or any later version // Refer to the license.txt file included. package org.citra_emu.citra.utils; import android.app.Activity; import android.content.pm.PackageManager; import android.support.v4.app.ActivityCompat; import android.support.v4.content.ContextCompat; public class PermissionUtil { /** * Checks a permission, if needed shows a dialog to request it * * @param activity the activity requiring the permission * @param permission the permission needed * @param requestCode supplied to the callback to determine the next action */ public static void verifyPermission(Activity activity, String permission, int requestCode) { if (ContextCompat.checkSelfPermission(activity, permission) == PackageManager.PERMISSION_GRANTED) { // call the callback called by requestPermissions activity.onRequestPermissionsResult(requestCode, new String[] { permission }, new int[] { PackageManager.PERMISSION_GRANTED }); return; } ActivityCompat.requestPermissions(activity, new String[] { permission }, requestCode); } }