android - better way to do Debug only assert code -


i writing first android application , liberally using asserts() junit.framework.assert

i find way ensure asserts compiled debug build, not in release build.

i know how query android:debuggable attribute manifest create variable , accomplish in following fashon:

static final boolean mdebug = ...

if (mdebug) assert.assertnotnull(view);

is there better way this? i.e. prefer not use if() each assert.

thanks

i think java language's assert keyword want. under covers, assert keyword compiles dalvik byte code 2 things:

  1. checks whether static variable assertionsdisabled (set in class' static constructor via call java.lang.class.desiredassertionstatus()) != 0 , if so, nothing
  2. if is 0, checks assertion expression , throws java.lang.assertionerror if expression resolves false, terminating application.

the dalvik runtime default has assertions turned off, , therefore desiredassertionstatus returns 1 (or more precisely, non-zero value). akin running in "retail" mode. in order turn on "debug" mode, can run following command against emulator or device:

adb shell setprop debug.assert 1

and should trick (should work on emulator or rooted debugging-ready device).

note aforementioned dalvik code checks value of assertionsdisabled , throws assertionerror if expression false included in byte code , liberal sprinkling of asserts in code may lead byte code bloat.

please see bit more detail: can use assert on android devices?


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