Cannot open camera if minSdkVersion = 21

[arttor]

Description

Not able to open camera (nothing happens and no errors in logs)
My project:

compileSdkVersion = 28
minSdkVersion = 21
targetSdkVersion = 28

library version:
implementation 'com.asksira.android:bsimagepicker:1.1.0'
tested on emulator with API lvl 23 25 28
and real device API 28.

During debug i found that

BSImagePicker/bsimagepicker/src/main/java/com/asksira/bsimagepicker/Utils.java

Line 32 in 5549d85

public static boolean isWriteStorageGranted (Context context) {

always returning false. Even after i granted WRITE_EXTERNAL_STORAGE permission.
Unfortunately, this check is mandatory to open camera.

According to official documentation

Beginning with Android 4.4 (API level 19), reading or writing files in your app's private external storage directory—accessed using getExternalFilesDir()—does not require the READ_EXTERNAL_STORAGE or WRITE_EXTERNAL_STORAGE permissions.

This leads to described behaviuor i my project with minSdkVersion = 21:
ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE) always returns -1 even after i explicitly granted permission -> camera cannot be opened.

[kroegerama]

onRequestPermissionsResult handles this just fine on my devices.

[siralam]

@arttor You need to handle run time permissions. If the function returns false it means user haven't granted permission. Your reference to the official documentation is just saying some specific external directories that do not required this permission.

[Morteza-Rastgoo]

Please update the readme file with this info