I have android app where I embed game that I make in Unity 3D. Other part of app is written in Cordova/Ionic and I need to use Crosswalk to support older android phones.
But when I add Crosswalk to my project, app crashes right after start with following output:
W/chromium: [WARNING:xwalk_external_extension.cc(58)] Error loading extension '/data/app/com.example.app-2/lib/arm/libmono.so': couldn't get XW_Initialize function.
W/chromium: [WARNING:xwalk_extension_server.cc(407)] Failed to initialize extension: /data/app/com.example.app-2/lib/arm/libmono.so
W/chromium: [WARNING:xwalk_external_extension.cc(58)] Error loading extension '/data/app/com.example.app-2/lib/arm/libxwalkcore.so': couldn't get XW_Initialize function.
W/chromium: [WARNING:xwalk_extension_server.cc(407)] Failed to initialize extension: /data/app/com.example.app-2/lib/arm/libxwalkcore.so
I/chromium: [INFO:xwalk_extension_renderer_controller.cc(42)] EXTENSION PROCESS DISABLED.
W/chromium: [WARNING:xwalk_external_extension.cc(58)] Error loading extension '/data/app/com.example.app-2/lib/arm/libVuforiaWrapper.so': couldn't get XW_Initialize function.
W/chromium: [WARNING:xwalk_extension_server.cc(407)] Failed to initialize extension: /data/app/com.example.app-2/lib/arm/libVuforiaWrapper.so
W/chromium: [WARNING:xwalk_external_extension.cc(58)] Error loading extension '/data/app/com.example.app-2/lib/arm/libunity.so': couldn't get XW_Initialize function.
32398-32443/com.example.app A/libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x0 in tid 32443 (Chrome_FileThre)
I/DEBUG: property debug.db.uid not set; NOT waiting for gdb.
I/DEBUG: HINT: adb shell setprop debug.db.uid 100000
I/DEBUG: HINT: adb forward tcp:5039 tcp:5039
A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
A/DEBUG: Build fingerprint: 'google/razor/flo:6.0.1/MMB29Q/2480792:user/release-keys'
A/DEBUG: Revision: '0'
A/DEBUG: ABI: 'arm'
A/DEBUG: pid: 32398, tid: 32443, name: Chrome_FileThre >>> com.example.app <<<
A/DEBUG: signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
A/DEBUG: r0 00000000 r1 98034abc r2 00000002 r3 0013064c
A/DEBUG: r4 00000000 r5 00130630 r6 00001000 r7 9771a0a0
A/DEBUG: r8 b5b27000 r9 b5b27dc4 sl b6cfc444 fp 0000000c
A/DEBUG: ip 00007ebb sp 9b1fffe8 lr 9771a0e0 pc 9771ac38 cpsr 600f0010
A/DEBUG: backtrace:
A/DEBUG: #00 pc 00498c38 /data/app/com.example.app-2/lib/arm/libunity.so
A/DEBUG: #01 pc 004980dc /data/app/com.example.app-2/lib/arm/libunity.so
A/DEBUG: #02 pc 00491f88 /data/app/com.example.app-2/lib/arm/libunity.so
A/DEBUG: #03 pc 004980a8 /data/app/com.example.app-2/lib/arm/libunity.so
A/DEBUG: #04 pc 00047f9f /system/lib/libc.so (__cxa_finalize+138)
A/DEBUG: #05 pc 00002559 /system/bin/linker (__dl__ZN6soinfo13call_functionEPKcPFvvE+48)
A/DEBUG: #06 pc 00002623 /system/bin/linker (__dl__ZN6soinfo10call_arrayEPKcPPFvvEjb+134)
A/DEBUG: #07 pc 000026e3 /system/bin/linker (__dl__ZN6soinfo16call_destructorsEv+58)
A/DEBUG: #08 pc 0000668b /system/bin/linker (__dl__ZL13soinfo_unloadP6soinfo+266)
A/DEBUG: #09 pc 000068d7 /system/bin/linker (__dl__Z10do_dlcloseP6soinfo+14)
A/DEBUG: #10 pc 00001b89 /system/bin/linker (__dl_dlclose+16)
A/DEBUG: #11 pc 00287de5 /data/app/com.example.app-2/lib/arm/libxwalkcore.so
So, obviously, libunity.so have some kind of problem with libxwalkcore.so
I believe that it is because of Crosswalk is trying to find "XW_Initialize function" in libunity.so and somehow it cause crash of whole app.
When I Use Crosswalk-Lite Everything works fine, except web video (disabled in crosswalk-lite), which I, unfortunately, need.
Is there any way to tell crosswalk not to load libunity.so as a extension?
Or is there any possibility to have Unity JNI libraries in one folder and Crosswalk libraries in second?
Thanks :)
It is a little late, but when I installed Crosswalk using this command, it worked:
cordova plugin add cordova-plugin-crosswalk-webview --variable XWALK_VERSION="15" --variable XWALK_MODE="lite"
Why; I don't know. However, I am almost sure that it is not about the mysterious "XW_Initialize" function as crosswalk gives similar warnings for non-Unity .so files as well (for me, at least).
EDIT:
Apparently, settings version to 15 is not necessary; just settings mode to Lite is enough:
cordova plugin add cordova-plugin-crosswalk-webview --variable XWALK_MODE="lite"
I have had the same problem with crosswalk crashing when it reads Unity's libunity.so, but after being stuck on this for days I found a solution:
If Unity's library is loaded before crosswalk is loaded, crosswalk doesn't crash on it.
To achieve this you need to load Unity's library by calling
System.loadLibrary("unity");
before calling loadUrl(launchUrl); in your MainActivity's onCreate.
This worked on my setup with Cordova 7.0.1, Crosswalk webview plugin 2.3.0 and Unity 5.6.4p3
来源：https://stackoverflow.com/questions/41045758/android-project-with-unity-jni-libraries-crash-after-crosswalk-was-added