so I have a task to make a trash sorting app. well I use a webviewer but in my app it can only be used once. I made 2 screens. The first screen only contains a button to go to the next screen and screen 2 contains a webviewer to detect trash and a back button. when I press the next button on screen 1, the display immediately switches to screen 2 and can detect trash. then I press the back button on screen 2 to return to screen 1. then I tried to press the next button again to go to screen 2. but the webviewer can't be used, it's just blank white, it can't detect. what do you think should be added to the coding?
