Android Question B4XPages+Appcompat

[Joscilando]

Hello,
Some example using B4XPages and Appcompat, I know it's not recommended.

 

[Erel]

B4XPages v1.09+ works with AppCompat. Nothing special is needed. Implement exactly as you will do in a non-B4XPages project.

 

[Joscilando]

But I always get this error, even with everything updated.
B4A Version: 10.90 Parsing code. (0.02s) Java Version: 11 Building folders structure. (0.03s) Running custom action. (0.05s) Compiling code. (0.03s) Compiling layouts code. (0.01s) Organizing libraries. (0.00s) (AndroidX SDK) Compiling resources (0.81s) Linking resources (0.62s) Compiling generated Java code. Error src\b4a\example\xx.java:9: error: package android.support.v7.app does not exist public class xx extends android.support.v7.app.AppCompatActivity implements BA.SubDelegator{ ^ Note: Some input files use or override a deprecated API. Note: Recompile with -Xlint:deprecation for details. 1 error javac 11.0.1

 

[Erel]

You are using an old version of AppCompat. Download the latest version.

 

[Joscilando]

I've already updated, what am I doing wrong?
An example follows.

 

[Erel]

Check the internal libraries folder and make sure that there is no copy of AppCompat.

 

[Joscilando]

it's just what I have.

 

[Erel]

Only the activity should include: #Extends: android.support.v7.app.AppCompatActivity
Remove it from the pages classes.

 

[Joscilando]

If I remove the line from the class I get this error.

*** Service (starter) Create ***
*** Service (starter) Create ***
** Service (starter) Start **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Create, isFirst = true **
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
** Activity (main) Resume **
** Activity (main) Resume **
xx_b4xpage_created (java line: 51)
xx_b4xpage_created (java line: 51)
java.lang.NullPointerException
    at de.amberhome.objects.appcompat.ACActionBar.setShowUpIndicator(ACActionBar.java:116)
    at b4a.example.xx._b4xpage_created(xx.java:51)
    at b4a.example.xx.callSub(xx.java:81)
    at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:1066)
    at anywheresoftware.b4a.keywords.Common.CallSubNew2(Common.java:1037)
    at b4a.example.b4xpagesmanager._createpageifneeded(b4xpagesmanager.java:522)
    at b4a.example.b4xpagesmanager._showpage(b4xpagesmanager.java:859)
    at b4a.example.b4xpages._showpage(b4xpages.java:120)
    at b4a.example.b4xmainpage._button1_click(b4xmainpage.java:50)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:213)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:193)
    at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:80)
    at android.view.View.performClick(View.java:4438)
    at android.view.View$PerformClick.run(View.java:18422)
    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:5055)
    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:779)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
    at dalvik.system.NativeStart.main(Native Method)
java.lang.NullPointerException
    at de.amberhome.objects.appcompat.ACActionBar.setShowUpIndicator(ACActionBar.java:116)
    at b4a.example.xx._b4xpage_created(xx.java:51)
    at b4a.example.xx.callSub(xx.java:81)
    at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:1066)
    at anywheresoftware.b4a.keywords.Common.CallSubNew2(Common.java:1037)
    at b4a.example.b4xpagesmanager._createpageifneeded(b4xpagesmanager.java:522)
    at b4a.example.b4xpagesmanager._showpage(b4xpagesmanager.java:859)
    at b4a.example.b4xpages._showpage(b4xpages.java:120)
    at b4a.example.b4xmainpage._button1_click(b4xmainpage.java:50)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:213)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:193)
    at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:80)
    at android.view.View.performClick(View.java:4438)
    at android.view.View$PerformClick.run(View.java:18422)
    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:5055)
    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:779)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
    at dalvik.system.NativeStart.main(Native Method)

 

[Joscilando]

Erel, I found the solution in this post. ?

ACActionBar is not initialized. Why ?

test project is enclosed.

www.b4x.com