Hi @Boban, @ewpatton and @SteveJG
Thanks for your valuable and quick support.
@Boban , I can open the file shared with me. Thanks again. It saved much time.
Now I have another problem.
I test the code on my android phone by using AI2 Companian. It seems work well. but the List view doesn't work well. testDetay ListViews was updating when I select an item of Testler ListView. AfterPicking block doesn't work on AI2 Companion. The App is crashing after a few trials.
@SteveJG , I use the Companion 2.61. Then I reinstalled the latest version of it after this problem. It couldn't be a solution.
Then I built a .apk file. I installed it on the phone. I get the same problem. AfterPicking block doesn't work and the App is crashing after a few trials.
Then I check it on the Emulator. It works well on the Emulator.
I couldn't understand where is the problem. It was working well on the previous version. I would be very grateful if you help me with this problem.