问题
Anybody got any idea why nu applications compiled on Delphi XE8 don't work on Android 4.4? Only black screen appears. It says it should be compatible with older Android versions.
回答1:
Please try to create the new empty mobile project in XE8, copy the *.dpr *.pas and *.fmx files into the project folder and add them to the project in the IDE (remember about extra graphics, sound etc - check the deploy option for them). I had similar issue and the new project with completely unchanged source files worked well. Tested with Experia Z1 Compact, Android 4.4 and 5.
来源：https://stackoverflow.com/questions/31490610/black-screen-with-delphi-xe8-firemonkey-android-4-4