Android Question Please help~ B4XPreferencesDialog error(API 29)

[Ellen Wu]

I am getting this error when I run the same code with the emulator on API platform 29 but no problem on API platform 28. The libraries those I used are
- B4XPreferencesDialog version 1.71
- XUI Views version 2.17
- xCustomListView 1.70


*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
preferencesdialog_initialize (java line: 1170)
java.lang.NoSuchFieldException: No field mColorStateList in class Landroid/graphics/drawable/GradientDrawable$GradientState; (declaration of 'android.graphics.drawable.GradientDrawable$GradientState' appears in /system/framework/framework.jar)
at java.lang.Class.getDeclaredField(Native Method)
at anywheresoftware.b4a.objects.B4XViewWrapper.getColor(B4XViewWrapper.java:388)
at b4a.example3.customlistview._designercreateview(customlistview.java:305)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at anywheresoftware.b4a.objects.CustomViewWrapper.AfterDesignerScript(CustomViewWrapper.java:67)
at anywheresoftware.b4a.keywords.LayoutBuilder.loadLayout(LayoutBuilder.java:162)
at anywheresoftware.b4a.objects.PanelWrapper.LoadLayout(PanelWrapper.java:134)
at anywheresoftware.b4a.objects.B4XViewWrapper.LoadLayout(B4XViewWrapper.java:292)

 

[Erel]

Might be an emulator problem as B4XView.Color works properly on real Android 10 devices.

Is this an emulator created with B4A Sdk Manager?

 

[Ellen Wu]

Yes, the emulator was created with B4A tool.
And my app doesn’t work on real Android 10 device, users told that the app crashed when first started. It only happened on Android 10.

 

[Erel]

Can you upload the project? Or send it to [email protected]?

 

[Ellen Wu]

Can you upload the project? Or send it to [email protected]?

Erel, the project already sent to you. Thank you for your help.

 

[Erel]

It is related to targetSdkVersion. Don't set it to 29 for now. It should be 28.

 

[Ellen Wu]

Thank you a lot~

 

[Greg Breinholt]

I had the same issue. Setting to 28 removed it.