zeprogfactory / unitechsample Goto Github PK

I'm trying with an Ea520, but it throws an error when setting: mScanManager.SwitchOutputMode(0);
The error is:

{Java.Lang.RuntimeException: stub
at Java.Interop.JniEnvironment+InstanceMethods.CallBooleanMethod (Java.Interop.JniObjectReference instance, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x0006e] in <00c315a988634383b446eff646084784>:0
at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeVirtualBooleanMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) [0x0002a] in <00c315a988634383b446eff646084784>:0
at Android.Device.ScanManager.SwitchOutputMode (System.Int32 mode) [0x0001a] in C:\test\Android\UnitechSample-master\Sources\JarBinding\obj\Debug\generated\src\Android.Device.ScanManager.cs:1525
at ZPF.UnitechHelper.initScan () [0x0002b] in C:\test\Android\UnitechSample-master\Sources\SampleUA510.Android\UnitechHelper.cs:36
at SampleUA510.Droid.MainActivity.OnCreate (Android.OS.Bundle savedInstanceState) [0x00076] in C:\test\Android\UnitechSample-master\Sources\SampleUA510.Android\MainActivity.cs:46
at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (System.IntPtr jnienv, System.IntPtr native__this, System.IntPtr native_savedInstanceState) [0x00010] in /Users/builder/azdo/_work/1/s/xamarin-android/src/Mono.Android/obj/Release/monoandroid10/android-29/mcw/Android.App.Activity.cs:2704
at (wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.7(intptr,intptr,intptr)
--- End of managed Java.Lang.RuntimeException stack trace ---
java.lang.RuntimeException: stub
at android.device.ScanManager.switchOutputMode(ScanManager.java:120)
at crc643f00a447f24b6502.MainActivity.n_onCreate(Native Method)
at crc643f00a447f24b6502.MainActivity.onCreate(MainActivity.java:40)
at android.app.Activity.performCreate(Activity.java:8004)
at android.app.Activity.performCreate(Activity.java:7988)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3457)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3648)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2116)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7723)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:612)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:997)
}