昨天本來(lái)想寫一個(gè)demo,然后放到手機(jī)上用神之手hook,然后用我的hookui測(cè)試批量修改集合內(nèi)模型數(shù)據(jù)，沒(méi)想到這么簡(jiǎn)單的問(wèn)題都搞不定了。。

權(quán)限申請(qǐng)了，清單文件也定義了，也手動(dòng)進(jìn)入設(shè)置給了存儲(chǔ)權(quán)限，然后今天動(dòng)態(tài)調(diào)用了權(quán)限申請(qǐng)了，
還是提示EPERM operation not permitted
網(wǎng)絡(luò)上說(shuō)的的在application節(jié)點(diǎn)
android:requestLegacyExternalStorage="true"前幾天我用這個(gè)方法解決了，可能是因?yàn)榫幾gtagetSdk版本不夠高吧，才勉強(qiáng)解決了問(wèn)題，但是今天這樣設(shè)置也沒(méi)效果了，。

進(jìn)入清單文件選擇

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

WRITE_EXTERNAL_STORAGE no longer provides write access when targeting Android 11+, even when using requestLegacyExternalStorage
于是根據(jù)這個(gè)關(guān)鍵詞搜索才找到解決方案，

解決方法如下:

    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="29"
        tools:ignore="ScopedStorage"

        />

    <application
            android:requestLegacyExternalStorage="true"

java層對(duì)于android 11的代碼

  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R && false == Environment.isExternalStorageManager()) {
            Uri uri = Uri.parse("package:" + BuildConfig.APPLICATION_ID);
            startActivity(new Intent(Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION, uri));
        }else{
        callPermissionLogic(this, 0);
        }

我寫的完整代碼，不用任何框架

      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R && false == Environment.isExternalStorageManager()) {
            Uri uri = Uri.parse("package:" + BuildConfig.APPLICATION_ID);
            startActivity(new Intent(Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION, uri));
        }else{
        callPermissionLogic(this, 0);
        }

    }

    private static final int REQUEST_CODE_SELECT_PLUGIN = 1;
    private boolean mChanage;


    private int _CurrentPermissionIndex;

    List<String> waitRequestPermissionList = new ArrayList<>();

    {
        waitRequestPermissionList.add(Manifest.permission.READ_EXTERNAL_STORAGE);

        waitRequestPermissionList.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
    }

    private int callPermissionLogic(Activity activity, final int from) {
        int breakFlag = -1;
        for (int i = from; i < waitRequestPermissionList.size(); i++) {
            final String currentPermission = waitRequestPermissionList.get(i);
            _CurrentPermissionIndex = i;
            final int finalI = i;
            if (PermissionUtil.checkSelfPermission(this, currentPermission) != PackageManager.PERMISSION_GRANTED) {
                breakFlag = i;
                if (PermissionUtil.shouldShowRequestPermissionRationale(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {


                    Log.w("PermissionRequest", "shouldShowRequestPermissionRationale call");
                    Toast.makeText(activity, "權(quán)限被拒絕" + currentPermission + "，你可以再次申請(qǐng)", Toast.LENGTH_SHORT).show();


                    callPermissionLogic(activity, from + 1);

                } else {
                    PermissionUtil.requestPermissions(this, new String[]{currentPermission}, i);
                    if (BuildConfig.DEBUG) {

                        Log.w("PermissionRequest", "第一次或者最后一次權(quán)限申請(qǐng) " + currentPermission);
                    }

                }
            } else {
                if (BuildConfig.DEBUG) {
                    Log.w("PermissionRequest", "權(quán)限" + currentPermission + "已擁有...");

                }
            }

        }
        return breakFlag;
    }


    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        PermissionUtil.onRequestPermissionsResult(this, requestCode, permissions, grantResults);
//onRequestPermissionsResult requestCode:1,permission:[android.permission.FOREGROUND_SERVICE],grantResult:[-1]
        if (BuildConfig.DEBUG) {
            Log.w("PermissionRequest", "onRequestPermissionsResult requestCode:" + requestCode + ",permission:" + Arrays.toString(permissions) + ",grantResult:" + Arrays.toString(grantResults));
        }
        _CurrentPermissionIndex++;
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED && permissions[0].equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {

        } else {


        }

        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }

在上面代碼可以找到如下行

Toast.makeText(activity, "權(quán)限被拒絕" + currentPermission + "，你可以再次申請(qǐng)", Toast.LENGTH_SHORT).show();

可以替換成下面的再次調(diào)用

 Log.w("PermissionRequest", "shouldShowRequestPermissionRationale call");
                    DialogUtils.showConfirmDialog(this, "年輕人,權(quán)限不用輕易拒絕啊,再給你一次機(jī)會(huì)，我需要申請(qǐng)" + currentPermission + "權(quán)限,這個(gè)權(quán)限有利于機(jī)器人程序得問(wèn)題哈!", new INotify<Void>() {
                        @Override
                        public void onNotify(Void param) {
                            PermissionUtil.requestPermissions(activity, new String[]{currentPermission}, finalI);
                        }
                    }, new INotify<Void>() {
                        @Override
                        public void onNotify(Void param) {
                            callPermissionLogic(activity,from + 1);
                        }
                    });

關(guān)于android11的問(wèn)題看看大神們?cè)趺从懻摰摹?/p>

https://stackoverflow.com/questions/64221188/write-external-storage-when-targeting-android-10