Android Question AndroidX and Chrome Custom Tabs

martin24 · Sep 6, 2019

I updated to B4A 9.30 and converted to AndroidX. In my app, everything runs fine except ChromCustomTabs. I use this lib: https://www.b4x.com/android/forum/threads/chrome-custom-tabs.70312/#content

The app crashes as soon as I try to open a page in a ChromeCustomTab. Everything worked fine before converting to AndroidX.

This is the error I get:
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/customtabs/CustomTabsServiceConnection;

Any idea how to fix this problem?

mcqueccu · Sep 7, 2019

Check this thread for another version by DonManfred

https://www.b4x.com/android/forum/threads/solved-chrom-custom-tabs-unable-to-run.93784/#post-639859

Erel · Sep 8, 2019

Works fine here. Make sure to run the jetifier tool and then clean the project (Ctrl + P).

Tested with this code:

B4X:

#AdditionalJar: com.android.support:support-v4
Sub Process_Globals

End Sub

Sub Globals

End Sub

Sub Activity_Create(FirstTime As Boolean)
   Dim c As ChromCustomTabs
   c.Initialize("c")
   c.chromeCustomTab("https://www.google.com")
End Sub

martin24 · Sep 8, 2019

I created a new project and used exactly the same code as Erel in his example, and got this error:

B4X:

*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
main_activity_create (java line: 339)
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/customtabs/CustomTabsServiceConnection;
    at b4a.example.main._activity_create(main.java:339)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
    at b4a.example.main.afterFirstLayout(main.java:104)
    at b4a.example.main.access$000(main.java:17)
    at b4a.example.main$WaitForLayout.run(main.java:82)
    at android.os.Handler.handleCallback(Handler.java:874)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loop(Looper.java:198)
    at android.app.ActivityThread.main(ActivityThread.java:6729)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.customtabs.CustomTabsServiceConnection" on path: DexPathList[[zip file "/system/framework/org.apache.http.legacy.boot.jar", zip file "/data/app/b4a.example-kyccUr2gcZz9MGd7RwHKQw==/base.apk"],nativeLibraryDirectories=[/data/app/b4a.example-kyccUr2gcZz9MGd7RwHKQw==/lib/arm64, /system/lib64, /system/vendor/lib64]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
    ... 13 more

Make sure to run the jetifier tool and then clean the project (Ctrl + P).

The crash still happens after performing these steps.

When I try to run jetifier, a window seems to popup and is automatically closed within a second, I cannot see any content in that window. Is this the correct behavior?

Check this thread for another version by DonManfred

https://www.b4x.com/android/forum/threads/solved-chrom-custom-tabs-unable-to-run.93784/#post-639859

Thanks for this link, the example project also crashes here with this error:

B4X:

*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
main_activity_create (java line: 346)
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/customtabs/CustomTabsIntent$Builder;
    at de.donmanfred.CCTwrapper.Initialize(CCTwrapper.java:57)
    at b4a.example.cct.main._activity_create(main.java:346)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
    at b4a.example.cct.main.afterFirstLayout(main.java:104)
    at b4a.example.cct.main.access$000(main.java:17)
    at b4a.example.cct.main$WaitForLayout.run(main.java:82)
    at android.os.Handler.handleCallback(Handler.java:874)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loop(Looper.java:198)
    at android.app.ActivityThread.main(ActivityThread.java:6729)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.customtabs.CustomTabsIntent$Builder" on path: DexPathList[[zip file "/system/framework/org.apache.http.legacy.boot.jar", zip file "/data/app/b4a.example.cct-Ug8wW8pX1XmDIlrY9xmz1A==/base.apk"],nativeLibraryDirectories=[/data/app/b4a.example.cct-Ug8wW8pX1XmDIlrY9xmz1A==/lib/arm64, /system/lib64, /system/vendor/lib64]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
    ... 14 more

DonManfred · Sep 8, 2019

martin24 said:
When I try to run jetifier, a window seems to popup and is automatically closed within a second, I cannot see any content in that window. Is this the correct behavior?

No.

It should look similar to

Erel · Sep 8, 2019

Have you configured the additional libraries folder?

martin24 · Sep 8, 2019

It should look similar to

This is not what I see here

Have you configured the additional libraries folder?

Yes.
Working with other libraries in that folder works well, and there is full write permission in the library folder.

Erel · Sep 8, 2019

Is Java 8 installed?

Open cmd.exe and run:

B4X:

java -jar "c:\Program Files (x86)\Anywhere Software\Basic4android\Jetifier.jar" c:\Users\H\Documents\AdditionalLibs\B4A

Change the path to your additional folder.

What do you see?

martin24 · Sep 8, 2019

Is Java 8 installed?

yes.

Change the path to your additional folder.

What do you see?

I see the correct window with installed libs and could also click the Jetify button.
The execution was successful and some androidx.jar files were created. ChromCustomTabs work fine now.

Problem solved, thank you very much.

martin24 · Sep 8, 2019

It seems that B4A has a problem with my lib folder what also caused my problems with the Jetifier window.

My lib folder is: G:\proj\apps\_libs\B4A\

Running this command opens the correct window:

java -jar "c:\Program Files (x86)\Anywhere Software\Basic4android\Jetifier.jar" G:\proj\apps\_libs\B4A\

Please try if you can reproduce these steps:

1) In "Configure paths", I have entered (with trailing backslash): G:\proj\apps\_libs\B4A\
2) Running Jetifier will not open the window correctly
3) In "Configure paths", I remove the trailing backslash, entered path now is: G:\proj\apps\_libs\B4A
4) Close this window (Jetifier works fine now)
5) Re-Open "Configure paths" and I just see: G:\proj\apps\_libs
---> B4A was removed! (closing and re-opening the "Configure paths" window is enough to automatically remove "\B4A")

When I use for example "G:\proj\apps\_libB4A", then everything works fine. Nothing is removed and Jetifier works correctly.

Erel · Sep 8, 2019

martin24 said:
Re-Open "Configure paths" and I just see: G:\proj\apps\_libs
---> B4A was removed! (closing and re-opening the "Configure paths" window is enough to automatically remove "\B4A")

This is expected with the relatively new libs folder structure. You should set the path to G:\proj\apps\_libs.
See this tutorial: https://www.b4x.com/android/forum/threads/b4x-additional-libraries-folder.103165/

martin24 · Sep 8, 2019

OK, thank you.

Android Question AndroidX and Chrome Custom Tabs

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