Android 11 适配存储权限

 升级到11后

targetSdkVersion 30

 权限又原来的两个变为了三个

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />

在原先的基础上面新增了这个全新啊

MANAGE_EXTERNAL_STORAGE

 

这个权限的目的是为了

该权限将授权读写所有共享存储内容，这也将同时包含非媒体类型的文件。但是获得这个权限的应用还是无法访问其他应用的应用专属目录 (app-specific directory)，无论是外部存储还是内部存储。

但是这个MANAGE_EXTERNAL_STORAGE权限和存储的俩权限 授权其中一个就好了。。不然还会报错

所以正确做法应当是。android11申请11的权限。低于11的那么就还是按照原来的去申请

public final class PermissionActivity extends AppCompatActivity {

    private static final int REQUEST_CODE = 1024;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestPermission();
    }

    private void requestPermission() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
            // 先判断有没有权限
            if (Environment.isExternalStorageManager()) {
                writeFile();
            } else {
                Intent intent = new Intent(Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION);
                intent.setData(Uri.parse("package:" + context.getPackageName()));
                startActivityForResult(intent, REQUEST_CODE);
            }
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            // 先判断有没有权限
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED &&
                    ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
                writeFile();
            } else {
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_CODE);
            }
        } else {
            writeFile();
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == REQUEST_CODE) {
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED &&
                    ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
                writeFile();
            } else {
                ToastUtils.show("存储权限获取失败");
            }
        }
    }

    @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()) {
                writeFile();
            } else {
                ToastUtils.show("存储权限获取失败");
            }
        }
    }

    /**
     * 模拟文件写入
     */
    private void writeFile() {
        ToastUtils.show("写入文件成功");
    }
}

XXPermissions 提供了简单的权限申请。

// JitPack 远程仓库：https://jitpack.io
        maven { url 'https://jitpack.io' }

api 'com.github.getActivity:XXPermissions:13.5'

申请这个权限就不用申请其他的了

 这个jetpck的插件帮我们完成了

val permission0 = Permission.ACCESS_FINE_LOCATION;
        val permission2 = Permission.READ_PHONE_STATE;
        val permission3 = Permission.MANAGE_EXTERNAL_STORAGE;

        if (XXPermissions.isGranted(activity, permission0, permission2, permission3)
        ) {
            onOver()
            return
        }
        XXPermissions.with(activity)
            // 申请单个权限
            .permission(permission0)
            // 申请多个权限
            .permission(permission2)
            .permission(permission3)
            // 设置权限请求拦截器（局部设置）
            //.interceptor(new PermissionInterceptor())
            // 设置不触发错误检测机制（局部设置）
            //.unchecked()
            .request(object : OnPermissionCallback {

                override fun onGranted(permissions: MutableList<String>, all: Boolean) {
               
                }

                override fun onDenied(
                    permissions: MutableList<String>,
                    never: Boolean
                ) {
                  
                }
            })

在对应多个权限申请的时候就可以弹出如上代码

我们没有对android12

做判断。但是框架为我们做了。

参考 ​​​​ 

​​GitHub - getActivity/XXPermissions: Android 权限请求框架，已适配 Android 12​​