Android 6.0 Marshmallow : Weird error with fragment animation

Question

One of my apps in the app store works perfectly fine with Android 5.0, but since today I have my device upgraded to 6.0 I get strange errors. I narrowed it down to the fragment transition animations.

ftrans.setCustomAnimations(inAnim, outAnim, inAnim, outAnim);

Without this line, my app also works fine on 6.0, with it I get this error :

10-14 14:36:51.016 23750-23820/? A/libc: Fatal signal 7 (SIGBUS), code 1, fault addr 0xb1 in tid 23820 (hwuiTask1)
10-14 14:36:51.118 200-200/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
10-14 14:36:51.118 200-200/? A/DEBUG: Build fingerprint: 'google/hammerhead/hammerhead:6.0/MRA58K/2256973:user/release-keys'
10-14 14:36:51.118 200-200/? A/DEBUG: Revision: '0'
10-14 14:36:51.118 200-200/? A/DEBUG: ABI: 'arm'
10-14 14:36:51.118 200-200/? A/DEBUG: pid: 23750, tid: 23820, name: hwuiTask1  >>> com.xxx.xxx <<<
10-14 14:36:51.118 200-200/? A/DEBUG: signal 7 (SIGBUS), code 1 (BUS_ADRALN), fault addr 0xb1
10-14 14:36:51.110 200-200/? W/debuggerd: type=1400 audit(0.0:54): avc: denied { search } for name="com.xxx.xxx" dev="mmcblk0p28" ino=1499496 scontext=u:r:debuggerd:s0 tcontext=u:object_r:app_data_file:s0:c512,c768 tclass=dir permissive=0
10-14 14:36:51.136 200-200/? A/DEBUG:     r0 00000073  r1 96efeed8  r2 00000002  r3 00000005
10-14 14:36:51.136 200-200/? A/DEBUG:     r4 00000006  r5 00000073  r6 00000000  r7 96eff1e8
10-14 14:36:51.136 200-200/? A/DEBUG:     r8 00000005  r9 96efebd8  sl 96eff470  fp 00000016
10-14 14:36:51.136 200-200/? A/DEBUG:     ip 000000b1  sp 96efebd8  lr 00000006  pc b5d887d2  cpsr 300f0030
10-14 14:36:51.142 200-200/? A/DEBUG:     #00 pc 0005a7d2  /system/lib/libhwui.so
10-14 14:36:51.142 200-200/? A/DEBUG:     #01 pc 0005b8a3  /system/lib/libhwui.so
10-14 14:36:51.142 200-200/? A/DEBUG:     #02 pc 00055e0b  /system/lib/libhwui.so
10-14 14:36:51.142 200-200/? A/DEBUG:     #03 pc 0005c9fd  /system/lib/libhwui.so
10-14 14:36:51.142 200-200/? A/DEBUG:     #04 pc 0001fd93  /system/lib/libhwui.so
10-14 14:36:51.142 200-200/? A/DEBUG:     #05 pc 0001006d  /system/lib/libutils.so (android::Thread::_threadLoop(void*)+112)
10-14 14:36:51.142 200-200/? A/DEBUG:     #06 pc 0005ecd3  /system/lib/libandroid_runtime.so (android::AndroidRuntime::javaThreadShell(void*)+70)
10-14 14:36:51.142 200-200/? A/DEBUG:     #07 pc 0003f3e7  /system/lib/libc.so (__pthread_start(void*)+30)
10-14 14:36:51.142 200-200/? A/DEBUG:     #08 pc 00019b43  /system/lib/libc.so (__start_thread+6)
10-14 14:36:51.500 200-200/? W/debuggerd: type=1400 audit(0.0:55): avc: denied { read } for name="kgsl-3d0" dev="tmpfs" ino=5756 scontext=u:r:debuggerd:s0 tcontext=u:object_r:gpu_device:s0 tclass=chr_file permissive=0
10-14 14:36:52.189 799-25288/? W/ActivityManager:   Force finishing activity com.xxx.xxx/.MainActivity
10-14 14:36:52.190 200-200/? E/DEBUG: AM write failed: Broken pipe
10-14 14:36:52.190 799-815/? I/BootReceiver: Copying /data/tombstones/tombstone_01 to DropBox (SYSTEM_TOMBSTONE)
10-14 14:36:52.257 799-901/? I/OpenGLRenderer: Initialized EGL, version 1.4
10-14 14:36:52.286 799-4576/? D/GraphicsStats: Buffer count: 5
10-14 14:36:52.286 799-4576/? I/WindowState: WIN DEATH: Window{d660a8a u0 com.xxx.xxx/com.xxx.xxx.MainActivity}
10-14 14:36:52.321 799-808/? I/art: Background partial concurrent mark sweep GC freed 71211(4MB) AllocSpace objects, 18(1032KB) LOS objects, 33% free, 32MB/48MB, paused 3.554ms total 114.532ms
10-14 14:36:52.372 214-214/? I/Zygote: Process 23750 exited due to signal (7)
10-14 14:36:52.379 799-1413/? I/ActivityManager: Process com.xxx.xxx (pid 23750) has died
10-14 14:36:52.386 799-1418/? I/ActivityManager: Killing 23069:com.android.documentsui/u0a35 (adj 15): empty #17
10-14 14:36:52.864 799-817/? W/WindowAnimator: Failed to dispatch window animation state change.
10-14 14:36:52.864 799-817/? W/WindowAnimator: android.os.DeadObjectException
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.os.BinderProxy.transactNative(Native Method)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.os.BinderProxy.transact(Binder.java:503)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.view.IWindow$Stub$Proxy.onAnimationStopped(IWindow.java:534)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at com.android.server.wm.WindowAnimator.updateWindowsLocked(WindowAnimator.java:286)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at com.android.server.wm.WindowAnimator.animateLocked(WindowAnimator.java:678)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at com.android.server.wm.WindowAnimator.-wrap0(WindowAnimator.java)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at com.android.server.wm.WindowAnimator$1.doFrame(WindowAnimator.java:123)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:856)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.view.Choreographer.doCallbacks(Choreographer.java:670)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.view.Choreographer.doFrame(Choreographer.java:603)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.os.Handler.handleCallback(Handler.java:739)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.os.Handler.dispatchMessage(Handler.java:95)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.os.Looper.loop(Looper.java:148)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at android.os.HandlerThread.run(HandlerThread.java:61)
10-14 14:36:52.864 799-817/? W/WindowAnimator:     at com.android.server.ServiceThread.run(ServiceThread.java:46)
10-14 14:36:52.983 1889-2087/? W/OpenGLRenderer: Incorrectly called buildLayer on View: ShortcutAndWidgetContainer, destroying layer...
10-14 14:36:52.983 1889-2087/? W/OpenGLRenderer: Incorrectly called buildLayer on View: ShortcutAndWidgetContainer, destroying layer...

The "in" animation I use looks like this :

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:interpolator/accelerate_decelerate">

<alpha
    android:fromAlpha="0" android:toAlpha="1"
    android:startOffset="@integer/fadein_offset"
    android:duration="@integer/fadein_duration"/>

<scale
    android:fromXScale="0%" android:toXScale="100%" android:fromYScale="0%" android:toYScale="100%"
    android:pivotX="50%"
    android:pivotY="50%"
    android:startOffset="@integer/fadein_offset"
    android:duration="@integer/fadein_duration"/>

The "out" animation looks identical, just reversed.

So my question is, what does this error mean and how do you do fragment transitions in marshmallow?

Edit : my addFragment method, where I use setCustomAnimations(). I added the SDK check as I use scale animations which are problematic on lower Android versions. Note however that this code works on Android <6, the animation runs fine and did so for 3 years.

private void addFragment(Fragment f, boolean addToBackstack, String tag) {
    FragmentManager fman = getSupportFragmentManager();
    FragmentTransaction ftrans = fman.beginTransaction();

//        if(Build.VERSION.SDK_INT>= Build.VERSION_CODES.HONEYCOMB) {
//             ftrans.setCustomAnimations(inAnim, outAnim, inAnim, outAnim);
//        }

    if(addToBackstack) ftrans.addToBackStack(tag);
    ftrans.replace(R.id.content, f, tag);
    ftrans.commit();
}

On button press in fragment 1, I delegate to the activity via interface and there I call

@Override
public void showFacts(DBCategory category) {
    addFragment(FragFacts.Instance(category.id(), category.name()), true, FragFacts.TAG);
}

Edit 2 : I found out it's not animation in general, it's just the scale animation part of my transition which causes it. I took it out, now it works.

Answer 1

This is bug on Marshmallow when we do scale animation. For now we found a workaround by setting view.setLayerType(View.LAYER_TYPE_SOFTWARE) see documentation