Hello, I'm doing a program that reads 6 data files from google sheets. I have one Main Activity at the start of which starts reading this data. I also have a second activity Viewer to which I'm sending the already readed data from Main activity. But .... if the user clicks the preview button before all the data have been readed, my program starts to open and hide Viewer activit several times and stops on Main activity. Does anyone know why while reading the data in the first activity I can not load the second without resuming the first activity again.
Sorry for my english!
Thanks in advance.
Sorry for my english!
Thanks in advance.