动态申请权限被拒绝不再提示后的处理

//先定义
    private static final int REQUEST_EXTERNAL_STORAGE1 = 1;
    private static final int REQUEST_EXTERNAL_STORAGE2 = 2;

    private static String[] PERMISSIONS_STORAGE = {
            "android.permission.READ_EXTERNAL_STORAGE",
            "android.permission.WRITE_EXTERNAL_STORAGE"};

    //然后通过一个函数来申请
    private boolean hasrefuse;

    public void verifyStoragePermissions(int mode) {
        try {
            //检测是否有写的权限
            int permission = ActivityCompat.checkSelfPermission(mContext, "android.permission.WRITE_EXTERNAL_STORAGE");
            if (permission != PackageManager.PERMISSION_GRANTED) {
                //判断是否拒绝过
                hasrefuse = ActivityCompat.shouldShowRequestPermissionRationale(mActivity, "android.permission.READ_EXTERNAL_STORAGE");
                hasrefuse = ActivityCompat.shouldShowRequestPermissionRationale(mActivity, "android.permission.WRITE_EXTERNAL_STORAGE");
                if (hasrefuse) {
                    //当拒绝了授权后，为提升用户体验，可以以弹窗的方式引导用户到设置中去进行设置
                    new AlertDialog.Builder(mContext)
                            .setMessage("需要开启权限才能使用此功能"))
                            .setPositiveButton("设置", new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    //引导用户到设置中去进行设置
                                    Intent intent = new Intent();
                                    intent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");
                                    intent.setData(Uri.fromParts("package", mContext.getPackageName(), null));
                                    startActivity(intent);

//                                    mActivity.finish();

                                }
                            })
                            .setNegativeButton("取消"), new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
//                                    mActivity.finish();
                                }
                            })
                            .create()
                            .show();
                } else {
                    //如果没有拒绝过,进入回调
                    // 没有写的权限，去申请写的权限，会弹出对话框
                    if (mode == 1){
                        ActivityCompat.requestPermissions(mActivity, PERMISSIONS_STORAGE, REQUEST_EXTERNAL_STORAGE1);
                    } else if (mode == 2){
                        ActivityCompat.requestPermissions(mActivity, PERMISSIONS_STORAGE, REQUEST_EXTERNAL_STORAGE2);
                    }
                    
                }
            } else {
                if (mode == 1) {
                    backupDatabaseDialog();
                } else if (mode == 2) {
                    showImportDialogTips();
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

@Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == REQUEST_EXTERNAL_STORAGE1) {
            backupDatabaseDialog();
        } else if (requestCode == REQUEST_EXTERNAL_STORAGE2) {
            showImportDialogTips();
        }
    }