Java Question Library that extends Activity

lorebarita

Member
Licensed User
Hi. I am trying to create a library that extends Activity. Such that when user clicks a certain button I call StartActivity(activity_in_library). I have seen similar libraries that works the same.

Using SLC I am able to create the library successfully with the package name of my java project being (com.weight.example).
I then created a B4A project with the same package name(com.weight.example) and in the manifest I added


AddApplicationText(<activity android:name="WeightCaptureActivity">
<intent-filter>
<action android:name="com.weight.example.WeightCaptureActivity" />
</intent-filter>
</activity>)

to register the activity that I want to start in my library.
To start my activity I just call StartActivity("WeightCaptureActivity")
but I get the following error.

java.lang.ClassNotFoundException: com.weight.example.weightcaptureactivity


at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:217)
at java.lang.Class.forName(Class.java:172)
at anywheresoftware.b4a.keywords.Common.getComponentIntent(Common.java:757)
at anywheresoftware.b4a.keywords.Common.StartActivity(Common.java:679)
at com.weight.example.main._button1_click(main.java:316)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:163)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:159)
at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:66)
at android.view.View.performClick(View.java:4212)
at android.view.View$PerformClick.run(View.java:17476)
at android.os.Handler.handleCallback(Handler.java:800)
at android.os.Handler.dispatchMessage(Handler.java:100)


at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5371)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NoClassDefFoundError: com/weight/example/weightcaptureactivity
... 23 more
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.weight.example.weightcaptureactivity" on path: DexPathList[[zip file "/data/app/com.weight.example-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.weight.example-1, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
... 23 more
java.lang.ClassNotFoundException: com.weight.example.weightcaptureactivity



Please help. I have attached the library and the b4a sample example.
 

Attachments

vpires

Member
Licensed User
Not tested, but...

B4X:
   Dim i As Intent
   i.Initialize("","")
  i.SetComponent("com.weight.example/com.weight.example.WeightCaptureActivity")
   StartActivity(i)
and in the manifest, this should be enough :

B4X:
AddApplicationText(
<activity android:name="com.weight.example.WeightCaptureActivity">
</activity>)
 
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