Android Question [SOLVED] Switch error

[jayel]

Hello,

When I want to set the switch checked value I get an error :

    Dim cv As SwitchView
    cv.Switch = LayoutPanel.GetView(1)
    cv.Checked = True

Error :

itemid = 30
Error occurred on line: 47 (switchview)
java.lang.NullPointerException
at be.robotronic.robodomotica.switchview._setchecked(switchview.java:49)
at be.robotronic.robodomotica.subitems._input_contentfiller(subitems.java:538)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:636)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:302)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:238)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:121)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
at flm.b4a.ultimatelistview.b.getView(SourceFile:561)
at android.widget.AbsListView.obtainView(AbsListView.java:2724)
at android.widget.ListView.makeAndAddView(ListView.java:1811)
at android.widget.ListView.fillDown(ListView.java:697)
at android.widget.ListView.fillFromTop(ListView.java:763)
at android.widget.ListView.layoutChildren(ListView.java:1627)
at flm.b4a.ultimatelistview.UltimateListView.layoutChildren(SourceFile:549)
at android.widget.AbsListView.onLayout(AbsListView.java:2549)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at anywheresoftware.b4a.BALayout.onLayout(BALayout.java:43)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:459)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2356)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2069)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1254)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6630)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:803)
at android.view.Choreographer.doCallbacks(Choreographer.java:603)
at android.view.Choreographer.doFrame(Choreographer.java:573)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:789)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5479)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)

This is the switch I am using : https://www.b4x.com/android/forum/threads/switch-view-android-4.38971/#content

 

[jayel]

Hey,

Another question : how can I know which switch is changed (checked_changed) event?

 

[jayel]

Solved it

Sub CustomView1_CheckedChange (Checked As Boolean)
    Dim x As Int
    Dim s_view As SwitchView = Sender

End Sub