src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/PermissionsHandler.java


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package org.yuzu.yuzu_emu.utils;

import android.annotation.TargetApi;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Build;

import androidx.core.content.ContextCompat;
import androidx.fragment.app.FragmentActivity;

import static android.Manifest.permission.WRITE_EXTERNAL_STORAGE;

public class PermissionsHandler {
    public static final int REQUEST_CODE_WRITE_PERMISSION = 500;

    // We use permissions acceptance as an indicator if this is a first boot for the user.
    public static boolean isFirstBoot(final FragmentActivity activity) {
        return ContextCompat.checkSelfPermission(activity, WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED;
    }

    @TargetApi(Build.VERSION_CODES.M)
    public static boolean checkWritePermission(final FragmentActivity activity) {
        if (isFirstBoot(activity)) {
            activity.requestPermissions(new String[]{WRITE_EXTERNAL_STORAGE},
                    REQUEST_CODE_WRITE_PERMISSION);
            return false;
        }

        return true;
    }

    public static boolean hasWriteAccess(Context context) {
        return ContextCompat.checkSelfPermission(context, WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
    }
}