Android Question Program not running on Android Version 4.2.2

[Jiten Shah]

B4A : 8.5

There is simple program which connect directly to MySQL database using mysql-connector-java-5.1.34-bin.jar.

This program work with Android Version 6 but not working with 4.2.2

Debug Log shows following error
java.lang.NumberFormatException: Invalid double: "Version"
java.lang.RuntimeException: Unable to create service b4a.example.starter: java.lang.RuntimeException: java.io.FileNotFoundException: /storage/emulated/0/Android/data/b4a.example/files/virtual_assets/1.bal: open failed: ENOENT (No such file or directory)

Mainfest file:
AddManifestText(
<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="16"/>
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
CreateResourceFromFile(Macro, Themes.DarkTheme)

 

[Jiten Shah]

Any one to help me

 

[jimmyF]

You might want to show us some of your start up code otherwise we have no idea.
What do you have in Starter Service_Create for one?

 

[Jiten Shah]

You might want to show us some of your start up code otherwise we have no idea.
What do you have in Starter Service_Create for one?

#Region  Service Attributes
   #StartAtBoot: False
   #ExcludeFromLibrary: True
#End Region

Sub Process_Globals
End Sub

Sub Service_Create
   'need to disable it as reading from large JdbcResultSet will cause network requests to be sent on the main thread.
   'DisableStrictMode
End Sub

Sub Service_Start (StartingIntent As Intent)

End Sub

'Sub DisableStrictMode
'   Dim jo As JavaObject
'   jo.InitializeStatic("android.os.Build.VERSION")
'   If jo.GetField("SDK_INT") > 9 Then
'       Dim policy As JavaObject
'       policy = policy.InitializeNewInstance("android.os.StrictMode.ThreadPolicy.Builder", Null)
'       policy = policy.RunMethodJO("permitAll", Null).RunMethodJO("build", Null)
'       Dim sm As JavaObject
'       sm.InitializeStatic("android.os.StrictMode").RunMethod("setThreadPolicy", Array(policy))
'   End If
'End Sub



Sub Service_TaskRemoved
   'This event will be raised when the user removes the app from the recent apps list.
End Sub

'Return true to allow the OS default exceptions handler to handle the uncaught exception.
Sub Application_Error (Error As Exception, StackTrace As String) As Boolean
   Return True
End Sub

Sub Service_Destroy

End Sub

 

[Jiten Shah]

I checked the path /storage/emulated/0/Android/data/b4a.example/files/virtual_assets/1.bal:
but I did not find anything no directory exist

Is layout file copied separately to device or is part of installation of apk file

 

[Erel]

1. Please use [code]code here...[/code] tags when posting code.

2. Where are the full error messages from the logs?

3. Are you using JdbcSQL library?

 

[Jiten Shah]

1. Please use [code]code here...[/code] tags when posting code. - Done

2. Where are the full error messages from the logs? - Attached

3. Are you using JdbcSQL library? - Yes

 

[Erel]

This error is related to the virtual assets debugging feature. Uninstall the device app, clean the project (Ctrl + P) and run again. If it still doesn't work then you can disable this feature with:

#DebuggerForceStandardAssets: true

 

[Jiten Shah]

I added these two
#BridgeLogger: True
#DebuggerForceStandardAssets: true

I have uploaded program in Release mode
Still program not able to run.

I have attached Release Debug Log

 

[Erel]

There is a problem in your code. We cannot really help you without seeing the code.

 

[Jiten Shah]

Same application is running on Android 6.0 on my phone

I have attached project

 

[Erel]

Help us help you.

Question:

Error message:

java.lang.NumberFormatException: Invalid double: "Version"
at java.lang.StringToReal.invalidReal(StringToReal.java:63)
at java.lang.StringToReal.initialParse(StringToReal.java:114)
at java.lang.StringToReal.parseDouble(StringToReal.java:263)
at java.lang.Double.parseDouble(Double.java:295)
at com.thebazaarng.main._activity_create(main.java:349)

Code in Activity_Create:

Sub Activity_Create(FirstTime As Boolean)
   'Do not forget to load the layout file created with the visual designer. For example:
   Activity.LoadLayout("main_layout")
   db.Initialize
   Activity.Title = "Version " + a_version
   
'   Wait For (db.Connect) Complete (Success As Boolean)       
End Sub

Answer:

+ operator adds two numbers.
You need to use the concatenation operator:

Activity.Title = "Version " & a_version

I recommend you to solve the debugging issues.

 

[Jiten Shah]

Thanks to point out my mistake

Even in my phone also it is not working may be I change the code later on

But why compiler is not able to catch this error???

 

[Erel]

It took 11 posts to understand the question. If you have any other question then please start a new thread.