Hi I try to read a file from SD card from Android app. In my AndroidManiest.xml file I already specify permission on read and write on external storage

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

```

Here is my code to check permission and try to read a file in the MainActivity.java. But I was not able to read my file. What did I do wrong ? Please help!

```
 int ReadExternalStoragePermission = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE);
        Log.e(TAG, "checkExternalStoragePermission() done");
        if(ReadExternalStoragePermission== PackageManager.PERMISSION_GRANTED) {
            Log.e(TAG, "ReadExternalStoragePermission() granted");

            //read my file in  /sdcard/test.csv

        }
        else {

        }

```