Android Question [Solved] No more request to enable camera access after changing android:targetSdkVersion in manifest from 22 to 30

sdesan

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Longtime User
Hi everyone,
after simple changing android:targetSdkVersion in manifest from 22 to 30 i don't have more request to enable camera access so i need to enable manually access to camera in appa setting.

this is my manifest

B4X: 
AddManifestText(
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="30"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
AddManifestText(<uses-feature android:name="android.hardware.telephony" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />)
AddPermission("android.permission.INTERNET")
AddPermission("android.permission.CAMERA")
AddPermission("android.hardware.camera")
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")

I'm using B4A Ver. 11.80 (64 bit)

Libraries used:
Core
OkHttpUtils2
QRCodeReaderView
XUI

Thank you in advance
 
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DonManfred

Expert
Licensed User
Longtime User
You are not using Runtimepermission and even not requesting for the permission?
Why?

MANDATORY READ and understand

android.jar / targetSdkVersion / minSdkVersion

There are several versioned components that affect the compilation process and the runtime behavior of our apps. The purpose of this tutorial is to explain the differences between them and help you choose which version to use. Each Android version is mapped to an api level. You can see this...
www.b4x.com

You are also not adding the right Permission in the manifest.

AddPermission - A list of permissions in Android

Subname: Addpermission Note: This is not really an Sub. It´s more an overview of permissions available Description: A list of all permissions usable in Android (B4A). Every permission is one line of the following list. To use this permission in your app you need to add the line you need in the...
www.b4x.com

B4X: 
 ' Required to be able to access the camera device.
AddPermission(android.permission.RECORD_AUDIO)  ' Allows an application to record audio.

try remove these 3 or at least camera
B4X: 
AddManifestText(<uses-feature android:name="android.hardware.telephony" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />)



Start with this Example:

[Class] CameraEx - Extends the camera library functionality

Example based on B4XPages: https://www.b4x.com/android/forum/threads/b4x-b4xpages-barcode-reader.120417/#content CameraEx class wraps the Camera object and using reflection and other code it extends its functionality. CameraEx class requires Android 2.3+ and depends on Camera library v2.20+...
www.b4x.com

If you are using B4XPages then use this Example

[B4X] [B4XPages] Barcode Reader

B4A + B4i barcode reader. Don't miss: - #PlistExtra in B4i. - Manifest code + #AdditionalJar in B4A Depends on BCToast: https://www.b4x.com/android/forum/threads/b4x-bctoast-cross-platform-custom-toast-message.111046/#content (BCToast will be an internal library in the near future) While the...
www.b4x.com

Does it work?
 
Last edited:
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sdesan

Member
Licensed User
Longtime User
Thank you for the answer
I changed manifest with no success

B4X: 
AddManifestText(
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="30"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
AddPermission(android.permission.INTERNET)
AddPermission(android.permission.CAMERA)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")

i've also removed " from AddPermission lines

In your

' Required to be able to access the camera device.
AddPermission(android.permission.RECORD_AUDIO) ' Allows an application to record audio.
Click to expand...
Probably you did not report some words, but also with those permissions ther is not camera rights request
-> AddPermission(android.permission.CAMERA) ' Required to be able to access the camera device. <-
AddPermission(android.permission.CAPTURE_AUDIO_OUTPUT) ' Allows an application to capture audio output.
Click to expand...

My manifest is based on QRCodeReaderView and if in manifest i write <uses-sdk android:minSdkVersion="4" android:targetSdkVersion="22"/> during first app start i have camera permission request
 
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sdesan

Member
Licensed User
Longtime User
Maybe I missed a few pieces or I didn't explain myself. I need to read qr code.

For doing what i need, i use the 'a SEVEN YEARS old Library' that works perfectly but if if in manifest i write <uses-sdk android:minSdkVersion="4" android:targetSdkVersion="30"/> the first time i use app there is not request of camera permission. If i change 30 in 22 i receive camera permission resquest.

All clear?

CameraEX example works but is not a qrreader, is a simple camera picture maker.

Thanks for your support anyway
 
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sdesan

Member
Licensed User
Longtime User
Hi Hamied,
thanks for the answer.

I want everytime camera permission request to end app users, but when i targeting 30 sdk (also 23,24,25 ecc.) this does not happen.

And unfortunately I don't understand Don Manfred solution, sorry
 
Upvote 0
H

Hamied Abou Hulaikah

Well-Known Member
Licensed User
Longtime User
Now the example used in the QRCodeReaderView library will not work if you targeting recent android sdk.
Download that example and change the following:
1- Check the library Runtimepermission in library tab
2- change the code of b1_Click event to:
B4X: 
Sub b1_Click
   
    Dim rp As RuntimePermissions
    rp.CheckAndRequest(rp.PERMISSION_CAMERA)
    Wait For Activity_PermissionResult (Permission As String, Result As Boolean)
    If Result Then

        qrcrv.Visible = True
        DoEvents
        qrcrv.startScan

    End If
   
End Sub
Then the example will work, so reflect the changes in your app.
 
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