black Screen

[new20w...@gmail.com]

If you are experiencing an issue please mention the full platform your issue applies to:
IDE: NetBeans/Eclipse/IDEA
Desktop OS
Simulator
Device

Helo

i have the same problem

after i do program and finish the all thing i send to android

but the problem when i open the program display black screen

what the reason?? 

[Shai Almog]

Hi,

that can mean a lot of things. I suggest connecting the device with a cable and looking through the printouts from the device in logcat.

Also please confirm that the app works correctly in the simulator.

[YouTube TV]

yes the app work with the simulator for that i dont know what i do work on simulator but dont work on android

and i dont know who locking 

connecting the device with a cable and looking through the printouts from the device in logcat  

‫في الاثنين، 8 يوليو 2019 في 5:10 ص تمت كتابة ما يلي بواسطة ‪Shai Almog‬‏ <‪shai....@gmail.com‬‏>:‬

Hi,

that can mean a lot of things. I suggest connecting the device with a cable and looking through the printouts from the device in logcat.

Also please confirm that the app works correctly in the simulator.

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[Shai Almog]

There are several tutorials in Google explaining how you can logcat a device: https://www.google.com/search?q=android+device+logcat

You would need the native Android SDK to do that and need to enable developer tools.

Did you change the project classpath or modify core behaviors?

A black screen can occur for multiple reasons since it's generally an exception or error before the first form is shown.