Android Question how to run java activty from class

[mzsoft]

hi
i write this class .

#If JAVA
import org.godotengine.godot.GodotActivity;
import android.os.Bundle;

public class GodotApp extends GodotActivity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        
        super.onCreate(savedInstanceState);
    }
}
#End If

and if activity create

Private NativeMe As JavaObject
NativeMe.InitializeNewInstance(Application.PackageName & ".main$GodotApp",Array(Null))

and manifest

AddApplicationText(
    <activity
        android:name="b4a.example.godot.main$GodotApp"
        android:exported='true'
        android:screenOrientation='fullUser'
        android:configChanges='orientation|screenSize|smallestScreenSize|screenLayout'
         >
<intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
          
          </activity>
)

but not work.
how can i start this activity.

 

[Erel]

It is the OS that starts activities. Create an intent with the correct component name and start it with StartActivity.

Note that you can make the B4A activity extend custom classes with the #Extends attribute.

 

[mzsoft]

i also test intent.

#AdditionalJar: godot-4.3.0.stable64.aar

Dim intent As Intent
    intent.Initialize(intent.ACTION_MAIN, "")
    intent.SetComponent("org.godotengine.godot/.GodotActivity")
    StartActivity(intent)

but error show.

android.content.ActivityNotFoundException: Unable to find explicit activity class {org.godotengine.godot/org.godotengine.godot.GodotActivity}; have you declared this activity in your AndroidManifest.xml, or does your intent not match its declared <intent-filter>?
    at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:2249)
    at android.app.Instrumentation.execStartActivity(Instrumentation.java:1878)
    at android.app.Activity.startActivityForResult(Activity.java:5760)
    at android.app.Activity.startActivityForResult(Activity.java:5718)
    at android.app.Activity.startActivity(Activity.java:6216)
    at android.app.Activity.startActivity(Activity.java:6183)
    at anywheresoftware.b4a.keywords.Common.StartActivity(Common.java:857)
    at b4a.example.godot.main._startgodotactivity(main.java:476)
    at b4a.example.godot.main._activity_create(main.java:350)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:221)
    at b4a.example.godot.main.afterFirstLayout(main.java:105)
    at b4a.example.godot.main.access$000(main.java:17)
    at b4a.example.godot.main$WaitForLayout.run(main.java:83)
    at android.os.Handler.handleCallback(Handler.java:958)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loopOnce(Looper.java:230)
    at android.os.Looper.loop(Looper.java:319)
    at android.app.ActivityThread.main(ActivityThread.java:8919)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:578)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1103)

 

[Erel]

Try this:

Dim intent As Intent
    intent.Initialize("", "")
    intent.SetComponent("b4a.example.godot/b4a.example.godot.main$GodotApp")
    StartActivity(intent)