Android Question Widget will not start

William Hunter

William Hunter

Active Member
Licensed User
Longtime User
I am trying to create a widget with three ImageView buttons, and also an ImageView and label to monitor battery level. I can compile and install to a device, but the widget will not start. The Main module is free of code. Code for the Service module is shown below. The errors logged are also shown below.

I don’t understand the nature of the error code and would appreciate an explanation. Also, do I have code in my Service module that is not appropriate for a widget, and should be moved to the Main module? Any help greatly is appreciated.

Regards

Service Module
B4X: 
#Region Module Attributes
    #StartAtBoot: True
#End Region

'Service module for Widget´s
Sub Process_Globals
    Dim rv As RemoteViews
    Dim ph As PhoneEvents
    Dim admin As BluetoothAdmin
    Dim GPS1 As GPS
    Dim WifiOffFlag As Boolean : WifiOffFlag = False
    Dim BTOffFlag As Boolean : BTOffFlag = False
    Dim GpsOffFlag As Boolean : GpsOffFlag = False
End Sub

Sub Service_Create
    rv = ConfigureHomeWidget("multiwidget.bal", "rv", 0, "MultiWidget",True)
    ConfigureButtons
    ph.Initialize("Bt")
End Sub

Sub Service_Start (StartingIntent As Intent)
    If rv.HandleWidgetEvents(StartingIntent) Then Return
    StartServiceAt("",DateTime.Now + 900 * 1000,True)'every 15 mins
End Sub

Sub rv_RequestUpdate
    rv.UpdateWidget
End Sub

Sub rv_Disabled
    ph.StopListening
    Dim ph As PhoneEvents
    StopService("")
End Sub

Sub Service_Destroy

End Sub

Sub ConfigureButtons
    ' configure button images
    Dim jhw As JhWifi
    ' Initialize wifi
    jhw.Initialize()
    If jhw.Enabled = False Then 
        rv.SetImage("ImgViewWIFI",LoadBitmap(File.DirAssets,"WIFIoff.png"))
        WifiOffFlag = True
    Else
        rv.SetImage("ImgViewWIFI",LoadBitmap(File.DirAssets,"WIFIon.png"))
        WifiOffFlag = False
    End If
    admin.Initialize("Admin")
    If admin.IsEnabled = False Then
        rv.SetImage("ImgViewBtooth",LoadBitmap(File.DirAssets,"BToff.png"))
        BTOffFlag = True
    Else
        rv.SetImage("ImgViewBtooth",LoadBitmap(File.DirAssets,"BTon.png"))
        BTOffFlag = False
    End If
    GPS1.Initialize("GPS")
    If GPS1.GPSEnabled = False Then
        rv.SetImage("ImgViewGPS",LoadBitmap(File.DirAssets,"GPSoff.png"))
        GpsOffFlag = True
    Else
        rv.SetImage("ImgViewGPS",LoadBitmap(File.DirAssets,"GPSon.png"))
        GpsOffFlag = False
    End If
    Return
End Sub

Sub Bt_BatteryChanged (Level As Int, Scale As Int, Plugged As Boolean, Intent As Intent)
    ' battery level changed
    If Level = 100 Then
        If Plugged = True Then 
            rv.SetImage("ImageView1",LoadBitmap(File.DirAssets,"100b.png"))
        Else  
            rv.SetImage("ImageView1",LoadBitmap(File.DirAssets,"100.png"))
        End If
    Else If Level >= 75  AND Level < 100 Then 
        If Plugged = True Then 
            rv.SetImage("ImageView1",LoadBitmap(File.DirAssets,"80b.png"))
        Else
            rv.SetImage("ImageView1",LoadBitmap(File.DirAssets,"80.png"))
        End If
    Else If Level >= 50  AND Level < 75 Then 
        If Plugged = True Then 
            rv.SetImage("ImageView1",LoadBitmap(File.DirAssets,"60b.png"))
        Else
            rv.SetImage("ImageView1",LoadBitmap(File.DirAssets,"60.png"))
        End If
    Else If Level >= 25  AND Level < 50 Then 
        If Plugged = True Then 
            rv.SetImage("ImageView1",LoadBitmap(File.DirAssets,"40b.png"))
        Else
            rv.SetImage("ImageView1",LoadBitmap(File.DirAssets,"40.png"))
        End If
    Else 
        rv.SetImage("ImageView1",LoadBitmap(File.DirAssets,"e.png"))
    End If    
    rv.SetText("label1",Level&" %")
    rv.UpdateWidget
End Sub

Sub ImgViewWIFI_Click
    Dim jhw As JhWifi
    ' Initialize wifi
    jhw.Initialize()
    If WifiOffFlag = True Then
        rv.SetImage("ImgViewWIFI",LoadBitmap(File.DirAssets,"WIFIon.png"))
        WifiOffFlag = False
        jhw.Enabled = True
    Else
        rv.SetImage("ImgViewWIFI",LoadBitmap(File.DirAssets,"WIFIoff.png"))
        WifiOffFlag = True
        jhw.Enabled = False
    End If
End Sub

Sub ImgViewBtooth_Click
    If BTOffFlag = True Then
        rv.SetImage("ImgViewBtooth",LoadBitmap(File.DirAssets,"BTon.png"))
        BTOffFlag = False
        admin.Enable
    Else
        rv.SetImage("ImgViewBtooth",LoadBitmap(File.DirAssets,"BToff.png"))
        BTOffFlag = True
        admin.Disable
    End If
End Sub

Sub ImgViewGPS_Click
    Dim turnOn As TurnGPS
    turnOn.Initialize()
    If GpsOffFlag = True Then
        rv.SetImage("ImgViewGPS",LoadBitmap(File.DirAssets,"GPSon.png"))
        GpsOffFlag = False
        turnOn.turnGPSOn
    Else
        rv.SetImage("ImgViewGPS",LoadBitmap(File.DirAssets,"GPSoff.png"))
        GpsOffFlag = True
        turnOn.turnGPSOff
    End If
End Sub

Log
B4X: 
LogCat connected to: emulator-5554
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = true **
** Service (service) Create **
service_service_create (java line: 317)
java.lang.RuntimeException: java.lang.NoSuchFieldException: service_imgviewwifi
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.getIdForView(RemoteViewsWrapper.java:95)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.loadLayoutHelper(RemoteViewsWrapper.java:83)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.loadLayoutHelper(RemoteViewsWrapper.java:77)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.createRemoteViews(RemoteViewsWrapper.java:58)
    at WH.app.MultiWidget.service._service_create(service.java:317)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:170)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:154)
    at WH.app.MultiWidget.service.onCreate(service.java:45)
    at android.app.ActivityThread.handleCreateService(ActivityThread.java:2959)
    at android.app.ActivityThread.access$3300(ActivityThread.java:125)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2087)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:4627)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NoSuchFieldException: service_imgviewwifi
    at java.lang.ClassCache.findFieldByName(ClassCache.java:510)
    at java.lang.Class.getField(Class.java:881)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.getIdForView(RemoteViewsWrapper.java:93)
    ... 20 more
java.lang.RuntimeException: Unable to create service WH.app.MultiWidget.service: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NoSuchFieldException: service_imgviewwifi
    at android.app.ActivityThread.handleCreateService(ActivityThread.java:2969)
    at android.app.ActivityThread.access$3300(ActivityThread.java:125)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2087)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:4627)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NoSuchFieldException: service_imgviewwifi
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:154)
    at WH.app.MultiWidget.service.onCreate(service.java:45)
    at android.app.ActivityThread.handleCreateService(ActivityThread.java:2959)
    ... 10 more
Caused by: java.lang.RuntimeException: java.lang.NoSuchFieldException: service_imgviewwifi
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.getIdForView(RemoteViewsWrapper.java:95)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.loadLayoutHelper(RemoteViewsWrapper.java:83)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.loadLayoutHelper(RemoteViewsWrapper.java:77)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.createRemoteViews(RemoteViewsWrapper.java:58)
    at WH.app.MultiWidget.service._service_create(service.java:317)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:170)
    ... 13 more
Caused by: java.lang.NoSuchFieldException: service_imgviewwifi
    at java.lang.ClassCache.findFieldByName(ClassCache.java:510)
    at java.lang.Class.getField(Class.java:881)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.getIdForView(RemoteViewsWrapper.java:93)
    ... 20 more
** Service (service) Create **
service_service_create (java line: 317)
java.lang.RuntimeException: java.lang.NoSuchFieldException: service_imgviewwifi
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.getIdForView(RemoteViewsWrapper.java:95)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.loadLayoutHelper(RemoteViewsWrapper.java:83)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.loadLayoutHelper(RemoteViewsWrapper.java:77)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.createRemoteViews(RemoteViewsWrapper.java:58)
    at WH.app.MultiWidget.service._service_create(service.java:317)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:170)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:154)
    at WH.app.MultiWidget.service.onCreate(service.java:45)
    at android.app.ActivityThread.handleCreateService(ActivityThread.java:2959)
    at android.app.ActivityThread.access$3300(ActivityThread.java:125)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2087)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:4627)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NoSuchFieldException: service_imgviewwifi
    at java.lang.ClassCache.findFieldByName(ClassCache.java:510)
    at java.lang.Class.getField(Class.java:881)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.getIdForView(RemoteViewsWrapper.java:93)
    ... 20 more
java.lang.RuntimeException: Unable to create service WH.app.MultiWidget.service: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NoSuchFieldException: service_imgviewwifi
    at android.app.ActivityThread.handleCreateService(ActivityThread.java:2969)
    at android.app.ActivityThread.access$3300(ActivityThread.java:125)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2087)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:4627)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NoSuchFieldException: service_imgviewwifi
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:154)
    at WH.app.MultiWidget.service.onCreate(service.java:45)
    at android.app.ActivityThread.handleCreateService(ActivityThread.java:2959)
    ... 10 more
Caused by: java.lang.RuntimeException: java.lang.NoSuchFieldException: service_imgviewwifi
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.getIdForView(RemoteViewsWrapper.java:95)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.loadLayoutHelper(RemoteViewsWrapper.java:83)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.loadLayoutHelper(RemoteViewsWrapper.java:77)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.createRemoteViews(RemoteViewsWrapper.java:58)
    at WH.app.MultiWidget.service._service_create(service.java:317)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:170)
    ... 13 more
Caused by: java.lang.NoSuchFieldException: service_imgviewwifi
    at java.lang.ClassCache.findFieldByName(ClassCache.java:510)
    at java.lang.Class.getField(Class.java:881)
    at anywheresoftware.b4a.objects.RemoteViewsWrapper.getIdForView(RemoteViewsWrapper.java:93)
    ... 20 more
 
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William Hunter

William Hunter

Active Member
Licensed User
Longtime User
NJDude said:
The errors are related to FILE NOT FOUND. Check your pictures.
Click to expand...

Thank you for your reply NJDude. The images are in the Files directory (DirAssets). I have attached the Zip file for my app if you, or anyone else, cares to take a look.

Regards

Edit:
The NoSuchFieldException refers to “imgviewwifi”, which is an ImageView that I am using as a button. This is not a FileNotFoundException. I think the error relates to my use of the line “rv.SetImage("ImgViewWIFI",LoadBitmap(File.DirAssets,"WIFIoff.png"))”
In “Sub ConfigureButtons”, but I don’t understand why it’s causing this error.
 

Attachments

  • Widget.zip
    85.3 KB · Views: 190
Last edited:
Upvote 0
William Hunter

William Hunter

Active Member
Licensed User
Longtime User
Erel said:
The views in the widget layout file must be children of the main panel.
Click to expand...

Thank you Erel. I had four ImageViews, all of which should have been changed to have Panel1 as the Parent. I only changed the first and ignored the other three. I don’t know how I managed to forget the obvious. I guess I was so focused on learning more about widgets, that a standard of care for what I already should know took a back seat. I can now continue with my project, and hopefully retain what I learn from it.

Regards
 
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