Android Question Problems with MobileVisionBarcodeScanner compiled with recent B4A version

[Gabino A. de la Gala]

After updating the B4A version to version 10.2 and inserting the corresponding SDK (resources_9_20.zip) I have found that I am not able to make an old application that uses the MobileVisionBarcodeScanner library work correctly.

Is there a way to make it work again?

Attached log with the error that appears when I peak at the button that launches the call to the scan window: mvbs.Start_MVBarcodeScanner

** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
EditTextActivo: EditCodigo
*** Service (wedgeservice) Create ***
BroadcastReceiver has been initialized.
** Service (wedgeservice) Start **
** Activity (main) Pause, UserClosed = false **
java.lang.RuntimeException: Unable to start activity ComponentInfo{epai.inventarios/xyz.belvi.mobilevisionbarcodesample.MainActivity}: android.view.InflateException: Binary XML file line #43 in epai.inventarios:layout/activity_main: Binary XML file line #43 in epai.inventarios:layout/activity_main: Error inflating class android.support.v7.widget.SwitchCompat
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3326)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3465)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2069)
    at android.os.Handler.dispatchMessage(Handler.java:107)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7417)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:980)
Caused by: android.view.InflateException: Binary XML file line #43 in epai.inventarios:layout/activity_main: Binary XML file line #43 in epai.inventarios:layout/activity_main: Error inflating class android.support.v7.widget.SwitchCompat
Caused by: android.view.InflateException: Binary XML file line #43 in epai.inventarios:layout/activity_main: Error inflating class android.support.v7.widget.SwitchCompat
Caused by: java.lang.ClassNotFoundException: android.support.v7.widget.SwitchCompat
    at java.lang.Class.classForName(Native Method)
    at java.lang.Class.forName(Class.java:454)
    at android.view.LayoutInflater.createView(LayoutInflater.java:815)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1010)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:961)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:1140)
    at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1101)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:1143)
    at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1101)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:1143)
    at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1101)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:682)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:534)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:481)
    at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:696)
    at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:170)
    at xyz.belvi.mobilevisionbarcodesample.MainActivity.onCreate(MainActivity.java:59)
    at android.app.Activity.performCreate(Activity.java:7817)
    at android.app.Activity.performCreate(Activity.java:7806)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1306)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3301)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3465)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2069)
    at android.os.Handler.dispatchMessage(Handler.java:107)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7417)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:980)
Caused by: java.lang.ClassNotFoundException: android.support

 

[kisoft]

I don't know if it will help you, but the latest version of B4A is 10.50... maybe it's worth trying to install the latest version according to this tutorial:

B4A – The simple way to develop native Android apps

B4A includes all the features needed to quickly develop any type of Android app. B4A is used by tens of thousands of developers from all over the world, including companies such as NASA, HP, IBM and others.

www.b4x.com

 

[aeric]

I guess it is related to Android support or appcompat. Also try click at menu Tools -> Jetifier (AndroidX)

 

[MikeSW17]

When installing B4A 10.5 (or any later version), remember to update BOTH Android SDK Command line tools and required resources

 

[Gabino A. de la Gala]

When installing B4A 10.5 (or any later version), remember to update BOTH Android SDK Command line tools and required resources

All of this already done.
I think is something about the proper library.

 

[MikeSW17]

Can you upload a cut-down or example project that shows the problem?

 

[Gabino A. de la Gala]

Can you upload a cut-down or example project that shows the problem?

The solution was in this post: https://www.b4x.com/android/forum/threads/kingsmentor-mobilevisionbarcodescanner.97010/#post-693757

Changing values in the xml file.