如何在android Q中以编程方式授予多个运行时权限

if (ContextCompat.checkSelfPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE)
        != PackageManager.PERMISSION_GRANTED) {
    // 权限未被授予，需要请求权限
}

ActivityCompat.requestPermissions(activity,
        new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
        requestCode);

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    if (requestCode == requestCode) {
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            // 权限已被授予
        } else {
            // 权限被拒绝
        }
    }
}

if (shouldShowRequestPermissionRationale(Manifest.permission.READ_EXTERNAL_STORAGE)) {
    new AlertDialog.Builder(context)
            .setMessage("需要读取外部存储权限才能访问文件")
            .setPositiveButton("去设置", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // 打开应用设置界面
                    Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                    Uri uri = Uri.fromParts("package", context.getPackageName(), null);
                    intent.setData(uri);
                    startActivity(intent);
                }
            })
            .setNegativeButton("取消", null)
            .show();
}