android 11 获取全部文件权限

//配置文件
<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"/>


//源代码
	/**
     * 请求许可权限
     */
    private void requestPermission() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
            // 先判断有没有权限
            if (Environment.isExternalStorageManager()) {
                //自动获取权限
                autoObtainLocationPermission();
            } else {
                //跳转到设置界面引导用户打开
                Intent intent = new Intent(Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION);
                intent.setData(Uri.parse("package:" + getPackageName()));
                startActivityForResult(intent, REQUEST_CODE);
            }
        } else {
            //自动获取权限
            autoObtainLocationPermission();
        }
    }

    /**
     * 自动获取权限
     */
    private void autoObtainLocationPermission() {
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                || ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED
                || ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED
                || ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED
                || ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED
        ) {
            //|| ContextCompat.checkSelfPermission(this, Manifest.permission.SEND_SMS) != PackageManager.PERMISSION_GRANTED
            ActivityCompat.requestPermissions(this,
                    new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_PHONE_STATE, Manifest.permission.RECORD_AUDIO},
                    PERMISSION_STATUS);
        } else {
            permissionFlag = true;
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        switch (requestCode) {
            case PERMISSION_STATUS: {
                // && grantResults[4] == PackageManager.PERMISSION_GRANTED
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED && grantResults[1] == PackageManager.PERMISSION_GRANTED && grantResults[2] == PackageManager.PERMISSION_GRANTED && grantResults[3] == PackageManager.PERMISSION_GRANTED && grantResults[4] == PackageManager.PERMISSION_GRANTED) {
                    permissionFlag = true;
                } else {
                    ToastUtils.showShort(this, "请打开手机相应权限");
                }
                break;
            }
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == REQUEST_CODE && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
            if (Environment.isExternalStorageManager()) {
                Log.d("权限判断--------》", "含有权限");
                //自动获取权限
                autoObtainLocationPermission();
            } else {
                Log.d("权限判断--------》", "获取权限失败");
                //跳转到设置界面引导用户打开
                Intent intent = new Intent(Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION);
                intent.setData(Uri.parse("package:" + getPackageName()));
                startActivityForResult(intent, REQUEST_CODE);
            }
        } else {
            //自动获取权限
            autoObtainLocationPermission();
        }
    }