java - NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder -


there issue android appcompat v7 library on samsung devices running android 4.2. keep getting crashes following stack trace in developer console:

java.lang.noclassdeffounderror: android.support.v7.internal.view.menu.menubuilder     @ android.support.v7.widget.popupmenu.<init>(popupmenu.java:66)     @ com.[my-package-name].customactivity$5.onclick(customactivity.java:215)     @ android.view.view.performclick(view.java:4222)     @ android.view.view$performclick.run(view.java:17620)     @ android.os.handler.handlecallback(handler.java:800)     @ android.os.handler.dispatchmessage(handler.java:100)     @ android.os.looper.loop(looper.java:194)     @ android.app.activitythread.main(activitythread.java:5391)     @ java.lang.reflect.method.invokenative(native method)     @ java.lang.reflect.method.invoke(method.java:525)     @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:833)     @ com.android.internal.os.zygoteinit.main(zygoteinit.java:600)     @ dalvik.system.nativestart.main(native method)

this line 215 of customactivity.java:

popupmenu popup = new popupmenu(customactivity.this, mimageviewmenu);

the crashes come array of devices, samsung, , android 4.2.

a quick web search leads me believe many people have same issue, of steps have tried solve issue are:

  • check android project properties, make sure appcompat library added properly.
  • check java build path order , export project properties, make sure android dependencies , android private libraries checked.
  • confirm class included in library (android.support.v7.internal.view.menu.menubuilder).
  • confirm r.java located in gen directory android.support.v7.appcompat.
  • confirm appcompat theme included in manifest.xml activity.
  • clean , rebuild project.

despite these steps, , despite working on other devices , android versions crash reports still come through.

edit:

the solution worked me (using proguard) replace this:

-keep class android.support.v4.** { *; }  -keep interface android.support.v4.** { *; }  -keep class android.support.v7.** { *; } -keep interface android.support.v7.** { *; }

with this:

# allow obfuscation of android.support.v7.internal.view.menu.** # avoid problem on samsung 4.2.2 devices appcompat v21 # see https://code.google.com/p/android/issues/detail?id=78377 -keep class !android.support.v7.internal.view.menu.**,android.support.** {*;}

credit goes google group, #138.

old answer (temporary workaround): happens in project use spinner in the actionbar. solution check conditions , change app flow:

public static boolean issamsung_4_2_2() {     string deviceman = build.manufacturer;     string devicerel = build.version.release;     return "samsung".equalsignorecase(deviceman) && devicerel.startswith("4.2.2"); }

then in activity's oncreate method:

if (issamsung_4_2_2()) {     setcontentview(r.layout.activity_main_no_toolbar); } else {     setcontentview(r.layout.activity_main); }

as pointed out not definitive solution, way allow users have access limited functionality while more permanent solution found.


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