How to use assert in android?

Question

I want to use assert obj != null : \"object cannot be null\" on Android device. The assert doesn\'t seem to work, so I searched online and I found this local so

Answer 1

Tested on Android 4.x device, it is possible to use Java assert on Android device:

• Edit /system/build.prop (for example by X-plore), add line at end of file: debug.assert=1
• Reboot phone

Now your Android device is sensible to assert checks, and will throw AssertionError when assert check fails.

EDIT:

Another easy approach, enabling asserts from PC until device is restarted:

platform-tools\adb shell setprop debug.assert 1

You may for example create a .bat file (on Windows) and run it when device is attached.