java - WebView.Destroy() 导致致命信号 11 崩溃

Question

我在使用 webview.destroy(); 时遇到了一个非常奇怪的崩溃。但是，这不是典型的堆栈跟踪错误。它似乎杀死了我的应用程序。我现在无法访问 logcat，但它在 WebViewCoreThread 中显示“致命信号 11”错误，并且还显示有关段错误的大量日志。

在调用 webview.destroy() 之前，我已经尝试了几乎所有的方法。我的代码目前是:

parent.removeView(wv);

wv.stopLoading();
wv.clearAnimation();
wv.clearCache(true);
wv.clearHistory();
wv.clearSslPreferences();
wv.removeAllViews();
wv.freeMemory();
wv.destroyDrawingCache();
wv.clearFocus();
wv.destroy();

这每次都会崩溃。但是，当我用 Runnable 替换 wv.destroy(); 并在 5 秒后运行 Runnable 时，它​​不会崩溃。我试过只延迟 10 毫秒发布它，但它有时有效，有时无效。无论如何，使用延迟是一种 hack，我不喜欢它，因为有些设备更快或更慢，并且会有不同的行为。似乎 WebViewCoreThread 的后台正在发生一些事情，wv.destroy(); 需要在调用之前完成。此外，我需要调用 destroy，因为在您停止操作之前，webview 不会真正停止操作。

这是一个问题的原因主要是因为我需要销毁 webview 并在 Activity 可见时创建一个全新的，这在应用程序的生命周期中可能会发生很多次。

这是日志转储: 另请注意，我知道它说“在连接时调用”但我已将其分离。这让我很困惑。

E/webview ( 3271): Error: WebView.destroy() called while still attached!
D/webviewglue( 3271): nativeDestroy view: 0x71ee4d88
F/libc    ( 3271): Fatal signal 11 (SIGSEGV) at 0x00750020 (code=1), thread 3285 (WebViewCoreThre)
D/dalvikvm( 2902): GC_CONCURRENT freed 378K, 5% free 9463K/9892K, paused 1ms+3ms, total 21ms
I/DEBUG   (13302): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
I/DEBUG   (13302): Build fingerprint: 'google/mantaray/manta:4.2.1/JOP40F/545822:user/release-keys'
I/DEBUG   (13302): Revision: '8'
I/DEBUG   (13302): pid: 3271, tid: 3285, name: WebViewCoreThre  >>> com.example.mobile.app:com.example.mobile.app.Brows <<<
I/DEBUG   (13302): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 00750020
I/DEBUG   (13302):     r0 00750000  r1 70c52458  r2 00500000  r3 71eedbc0
I/DEBUG   (13302):     r4 70c46318  r5 00000000  r6 00000000  r7 00000000
I/DEBUG   (13302):     r8 00000000  r9 7292eeec  sl 71ebf080  fp 72a2ec8c
I/DEBUG   (13302):     ip 71cbc00c  sp 72a2ec08  lr 716b6e3b  pc 716ed126  cpsr 60000030
I/DEBUG   (13302):     d0  78a329c800000100  d1  000000004059966f
I/DEBUG   (13302):     d2  776f696b2e697300  d3  65696c632e657200
I/DEBUG   (13302):     d4  6c69626f6d2e746e  d5  65772f7070612e65
I/DEBUG   (13302):     d6  6863616370706162  d7  63696c7070412f65
I/DEBUG   (13302):     d8  0000000000000000  d9  0000000000000000
I/DEBUG   (13302):     d10 0000000000000000  d11 0000000000000000
I/DEBUG   (13302):     d12 0000000000000000  d13 0000000000000000
I/DEBUG   (13302):     d14 0000000000000000  d15 0000000000000000
I/DEBUG   (13302):     d16 0000000000000001  d17 000000000000002d
I/DEBUG   (13302):     d18 000000000000002e  d19 7fffffffffffffff
I/DEBUG   (13302):     d20 00b6802e00b3802d  d21 00bc802f00b9802f
I/DEBUG   (13302):     d22 0707070703030303  d23 0000002f0000002e
I/DEBUG   (13302):     d24 0000000000000000  d25 0000000000000000
I/DEBUG   (13302):     d26 0000002f0000002f  d27 0000002f0000002f
I/DEBUG   (13302):     d28 0001000000010000  d29 0001000000010000
I/DEBUG   (13302):     d30 0003000000030000  d31 0003000000030000
I/DEBUG   (13302):     scr 20000090
I/DEBUG   (13302): 
I/DEBUG   (13302): backtrace:
I/DEBUG   (13302):     #00  pc 00158126  /system/lib/libwebcore.so
I/DEBUG   (13302):     #01  pc 00158857  /system/lib/libwebcore.so
I/DEBUG   (13302):     #02  pc 0001e290  /system/lib/libdvm.so (dvmPlatformInvoke+112)
I/DEBUG   (13302):     #03  pc 0004d411  /system/lib/libdvm.so (dvmCallJNIMethod(unsigned int const*, JValue*, Method const*, Thread*)+396)
I/DEBUG   (13302):     #04  pc 000276a0  /system/lib/libdvm.so
I/DEBUG   (13302):     #05  pc 0002b57c  /system/lib/libdvm.so (dvmInterpret(Thread*, Method const*, JValue*)+184)
I/DEBUG   (13302):     #06  pc 0005fc31  /system/lib/libdvm.so (dvmCallMethodV(Thread*, Method const*, Object*, bool, JValue*, std::__va_list)+272)
I/DEBUG   (13302):     #07  pc 0005fc5b  /system/lib/libdvm.so (dvmCallMethod(Thread*, Method const*, Object*, JValue*, ...)+20)
I/DEBUG   (13302):     #08  pc 000547d7  /system/lib/libdvm.so
I/DEBUG   (13302):     #09  pc 0000e3d8  /system/lib/libc.so (__thread_entry+72)
I/DEBUG   (13302):     #10  pc 0000dac4  /system/lib/libc.so (pthread_create+160)
I/DEBUG   (13302):     #11  pc 0001260c  <unknown>
I/DEBUG   (13302): 
I/DEBUG   (13302): stack:
I/DEBUG   (13302):          72a2ebc8  c0000000  
I/DEBUG   (13302):          72a2ebcc  405a2464  /system/lib/libsqlite.so
I/DEBUG   (13302):          72a2ebd0  78a37670  
I/DEBUG   (13302):          72a2ebd4  405a2cd8  /system/lib/libsqlite.so
I/DEBUG   (13302):          72a2ebd8  00000000  
I/DEBUG   (13302):          72a2ebdc  00000001  
I/DEBUG   (13302):          72a2ebe0  72a2ec1c  [stack:3285]
I/DEBUG   (13302):          72a2ebe4  716889a3  /system/lib/libwebcore.so
I/DEBUG   (13302):          72a2ebe8  72a2ec1c  [stack:3285]
I/DEBUG   (13302):          72a2ebec  71b10719  /system/lib/libwebcore.so
I/DEBUG   (13302):          72a2ebf0  70c52458  
I/DEBUG   (13302):          72a2ebf4  70c52458  
I/DEBUG   (13302):          72a2ebf8  71eedbc0  
I/DEBUG   (13302):          72a2ebfc  70c46318  
I/DEBUG   (13302):          72a2ec00  df0027ad  
I/DEBUG   (13302):          72a2ec04  00000000  
I/DEBUG   (13302):     #00  72a2ec08  00000040  
I/DEBUG   (13302):          72a2ec0c  72a2ec28  [stack:3285]
I/DEBUG   (13302):          72a2ec10  70c52458  
I/DEBUG   (13302):          72a2ec14  70c52458  
I/DEBUG   (13302):          72a2ec18  70c52458  
I/DEBUG   (13302):          72a2ec1c  71b10719  /system/lib/libwebcore.so
I/DEBUG   (13302):          72a2ec20  00423f3c  
I/DEBUG   (13302):          72a2ec24  716ed85b  /system/lib/libwebcore.so
I/DEBUG   (13302):     #01  72a2ec28  70c09208  
I/DEBUG   (13302):          72a2ec2c  70c46c08  
I/DEBUG   (13302):          72a2ec30  71eedcb0  
I/DEBUG   (13302):          72a2ec34  71eedcb0  
I/DEBUG   (13302):          72a2ec38  71eedbc0  
I/DEBUG   (13302):          72a2ec3c  71eedcb0  
I/DEBUG   (13302):          72a2ec40  00000000  
I/DEBUG   (13302):          72a2ec44  00000000  
I/DEBUG   (13302):          72a2ec48  00000000  
I/DEBUG   (13302):          72a2ec4c  00000000  
I/DEBUG   (13302):          72a2ec50  00000000  
I/DEBUG   (13302):          72a2ec54  00000000  
I/DEBUG   (13302):          72a2ec58  00000000  
I/DEBUG   (13302):          72a2ec5c  00000000  
I/DEBUG   (13302):          72a2ec60  6cf71c28  /dev/ashmem/dalvik-LinearAlloc (deleted)
I/DEBUG   (13302):          72a2ec64  71ebf070  
I/DEBUG   (13302):          ........  ........
I/DEBUG   (13302):     #02  72a2ec78  7292eeec  
I/DEBUG   (13302):          72a2ec7c  00000001  
I/DEBUG   (13302):          72a2ec80  41ca85d0  /dev/ashmem/dalvik-heap (deleted)
I/DEBUG   (13302):          72a2ec84  00000008  
I/DEBUG   (13302):          72a2ec88  00000000  
I/DEBUG   (13302):          72a2ec8c  40808415  /system/lib/libdvm.so (dvmCallJNIMethod(unsigned int const*, JValue*, Method const*, Thread*)+400)
I/DEBUG   (13302): 
I/DEBUG   (13302): memory near r0:
I/DEBUG   (13302):     0074ffe0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     0074fff0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00750000 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00750010 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00750020 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00750030 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00750040 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00750050 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00750060 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00750070 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00750080 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00750090 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     007500a0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     007500b0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     007500c0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     007500d0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302): 
I/DEBUG   (13302): memory near r1:
I/DEBUG   (13302):     70c52438 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     70c52448 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     70c52458 00750000 00000013 71e6d448 00000002  
I/DEBUG   (13302):     70c52468 78a2f798 00000023 40695d28 00000002  
I/DEBUG   (13302):     70c52478 00000008 70c52490 4077af2d 00000000  
I/DEBUG   (13302):     70c52488 00000000 0000002b 70c53370 70c53180  
I/DEBUG   (13302):     70c52498 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     70c524a8 00000000 80002059 00000000 00000013  
I/DEBUG   (13302):     70c524b8 00000020 00000000 70c3f2a0 00000023  
I/DEBUG   (13302):     70c524c8 40695d28 00000001 00000008 70c524e8  
I/DEBUG   (13302):     70c524d8 4077af2d 00000000 00000005 0000002b  
I/DEBUG   (13302):     70c524e8 70c52338 6fc7d068 00000000 6fc7d068  
I/DEBUG   (13302):     70c524f8 00000000 6fc7d0a8 6f93bd90 6f93bed4  
I/DEBUG   (13302):     70c52508 00000000 0000002b 00000098 00000008  
I/DEBUG   (13302):     70c52518 70c52524 00000000 00a6421a 006e006f  
I/DEBUG   (13302):     70c52528 00750073 006d0062 00740069 0000001b  
I/DEBUG   (13302): 
I/DEBUG   (13302): memory near r2:
I/DEBUG   (13302):     004fffe0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     004ffff0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00500000 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00500010 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00500020 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00500030 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00500040 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00500050 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00500060 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00500070 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00500080 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     00500090 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     005000a0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     005000b0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     005000c0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302):     005000d0 ffffffff ffffffff ffffffff ffffffff  
I/DEBUG   (13302): 
I/DEBUG   (13302): memory near r3:
I/DEBUG   (13302):     71eedba0 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedbb0 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedbc0 70c50988 70c46318 00000000 00000000  
I/DEBUG   (13302):     71eedbd0 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedbe0 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedbf0 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedc00 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedc10 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedc20 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedc30 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedc40 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedc50 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedc60 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedc70 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedc80 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71eedc90 00000000 00000000 00000000 00000000  
I/DEBUG   (13302): 
I/DEBUG   (13302): memory near r4:
I/DEBUG   (13302):     70c462f8 0065006e 00620073 00720075 00000067  
I/DEBUG   (13302):     70c46308 00000000 20009c00 00000038 0000004b  
I/DEBUG   (13302):     70c46318 70c50988 70c52358 00000040 0000003f  
I/DEBUG   (13302):     70c46328 00000000 00000001 00000000 00000000  
I/DEBUG   (13302):     70c46338 00000000 00000000 00000000 6f591900  
I/DEBUG   (13302):     70c46348 00000001 00000000 00000000 00000000  
I/DEBUG   (13302):     70c46358 70c46360 0000001b 00500000 00000000  
I/DEBUG   (13302):     70c46368 00500000 00000000 00000000 0000001b  
I/DEBUG   (13302):     70c46378 00000008 00000000 74786574 756f6a00  
I/DEBUG   (13302):     70c46388 6c616e72 0000001b 00000008 00000000  
I/DEBUG   (13302):     70c46398 74786574 080bff00 00000018 0000002b  
I/DEBUG   (13302):     70c463a8 6f709a04 ffffffff 00000000 00000000  
I/DEBUG   (13302):     70c463b8 43de3400 42eccefa 0000026c 00000029  
I/DEBUG   (13302):     70c463c8 00000028 00000023 6f708762 400f3c74  
I/DEBUG   (13302):     70c463d8 00000000 00000000 43de3400 42eccefa  
I/DEBUG   (13302):     70c463e8 00000020 00000023 6f709cd4 40695c00  
I/DEBUG   (13302): 
I/DEBUG   (13302): memory near r9:
I/DEBUG   (13302):     7292eecc 423c9510 00000000 423ca190 7292ef00  
I/DEBUG   (13302):     7292eedc 6e479470 6cf71c28 00000000 00000000  
I/DEBUG   (13302):     7292eeec 7292ef14 6e47923e 6cf71b10 6e479470  
I/DEBUG   (13302):     7292eefc 00000000 7292ef64 6e1b61f4 6d077fd8  
I/DEBUG   (13302):     7292ef0c 6e47923e 00000000 00000000 00000001  
I/DEBUG   (13302):     7292ef1c 423f4508 7292ef84 6e39f44e 6ce1b3f8  
I/DEBUG   (13302):     7292ef2c 6e3a0af4 00000000 00000000 00000000  
I/DEBUG   (13302):     7292ef3c 00000003 423f4508 00000000 423dc068  
I/DEBUG   (13302):     7292ef4c 423f4508 7292ef84 6e39f4c8 6ce68200  
I/DEBUG   (13302):     7292ef5c 6e1b61f4 00000000 00000000 423dc068  
I/DEBUG   (13302):     7292ef6c 423f4508 7292efc4 6e48cf7a 6cf12218  
I/DEBUG   (13302):     7292ef7c 6e39f4c8 00000000 00000cc7 00002753  
I/DEBUG   (13302):     7292ef8c 00000000 423cac28 423f4508 00000cc7  
I/DEBUG   (13302):     7292ef9c 00002753 423caa70 423dc068 00000000  
I/DEBUG   (13302):     7292efac 41ca7860 7292efe4 417a6028 6d070658  
I/DEBUG   (13302):     7292efbc 6e48cf7a 00000000 41ca7860 41ca7860  
I/DEBUG   (13302): 
I/DEBUG   (13302): memory near sl:
I/DEBUG   (13302):     71ebf060 00000004 00000000 70c326a0 00000453  
I/DEBUG   (13302):     71ebf070 417a601c 7292eeec 6cf71b10 6ea11000  
I/DEBUG   (13302):     71ebf080 423f4508 00000000 72a2eda0 00000000  
I/DEBUG   (13302):     71ebf090 72a2edd4 0000000c 00000000 407d9400  
I/DEBUG   (13302):     71ebf0a0 00000000 00000000 40ab7470 7292b300  
I/DEBUG   (13302):     71ebf0b0 00000000 00000000 00000001 00004000  
I/DEBUG   (13302):     71ebf0c0 00000000 71e858a0 407d9400 407de2c0  
I/DEBUG   (13302):     71ebf0d0 00000000 407e23bc 407e2430 407e22e0  
I/DEBUG   (13302):     71ebf0e0 407e2300 407e235c 00000000 00000000  
I/DEBUG   (13302):     71ebf0f0 78bd0c30 00000028 00000000 00000000  
I/DEBUG   (13302):     71ebf100 00000000 00000000 00002000 408698d4  
I/DEBUG   (13302):     71ebf110 00000000 00000000 00000001 71ec0e90  
I/DEBUG   (13302):     71ebf120 00000001 00000040 00000200 00000000  
I/DEBUG   (13302):     71ebf130 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71ebf140 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     71ebf150 00000000 00000000 00000000 00000000  
I/DEBUG   (13302): 
I/DEBUG   (13302): memory near fp:
I/DEBUG   (13302):     72a2ec6c 7292eef4 72a2ec78 407d9294 7292eeec  
I/DEBUG   (13302):     72a2ec7c 00000001 41ca85d0 00000008 00000000  
I/DEBUG   (13302):     72a2ec8c 40808415 7292eeec 6e678599 717d494b  
I/DEBUG   (13302):     72a2ec9c 71ebf080 41ca85d0 00000000 00000001  
I/DEBUG   (13302):     72a2ecac 400f4228 40858319 00000000 00000000  
I/DEBUG   (13302):     72a2ecbc 00000005 72a2ec98 00000001 0000ac79  
I/DEBUG   (13302):     72a2eccc 71ebf070 41700b18 6e61a636 6e6a8bbd  
I/DEBUG   (13302):     72a2ecdc 4375c004 6e8e8512 00000000 72a2ed54  
I/DEBUG   (13302):     72a2ecec 6cf71c3c 00000001 41ca85d0 00000001  
I/DEBUG   (13302):     72a2ecfc 6cf71c28 000001f8 6e70acd7 00000008  
I/DEBUG   (13302):     72a2ed0c 00000001 72a2ed54 40825ebd 6e70acd7  
I/DEBUG   (13302):     72a2ed1c 41ca85d0 6e70acd7 0000a890 6ea11000  
I/DEBUG   (13302):     72a2ed2c 00000002 6e147e84 400f4228 41700b18  
I/DEBUG   (13302):     72a2ed3c 40826357 72a2ed54 6e70acd7 72a2ed54  
I/DEBUG   (13302):     72a2ed4c 408269b9 71ebf070 41700b18 000015f5  
I/DEBUG   (13302):     72a2ed5c 0000000c 423caa74 7292ef00 1dcd64ff  
I/DEBUG   (13302): 
I/DEBUG   (13302): memory near ip:
I/DEBUG   (13302):     71cbbfec 400ca761 400ca651 71dff1e5 400c5d47  
I/DEBUG   (13302):     71cbbffc 400cb1d1 400fe8f7 400fe8e9 400b5ef5  
I/DEBUG   (13302):     71cbc00c 400c2560 400c1600 400c170c 400b5f1d  
I/DEBUG   (13302):     71cbc01c 400b5f09 400b5f31 400fe855 400fe8ab  
I/DEBUG   (13302):     71cbc02c 400b641c 400b6470 400b6524 400b6430  
I/DEBUG   (13302):     71cbc03c 400c0734 400bfe84 400b6fe8 400b6738  
I/DEBUG   (13302):     71cbc04c 400b6c68 400b7068 400b70a4 400b749c  
I/DEBUG   (13302):     71cbc05c 400b7494 400b73e4 400b70c0 400b60c0  
I/DEBUG   (13302):     71cbc06c 400b635c 400b6830 400b74a4 400b6a24  
I/DEBUG   (13302):     71cbc07c 400b77fc 400b75fc 400b78a8 400e1bb3  
I/DEBUG   (13302):     71cbc08c 4061720d 40619a69 400c11a4 40646c55  
I/DEBUG   (13302):     71cbc09c 409736a4 406466a1 40646335 406461bd  
I/DEBUG   (13302):     71cbc0ac 4097374c 4097376c 40973848 400e2e88  
I/DEBUG   (13302):     71cbc0bc 400ca29d 400ce121 400c6635 400fe901  
I/DEBUG   (13302):     71cbc0cc 407788c9 4061ae01 400c2690 405f2b45  
I/DEBUG   (13302):     71cbc0dc 407790e1 4076516d 40765155 407794c5  
I/DEBUG   (13302): 
I/DEBUG   (13302): memory near sp:
I/DEBUG   (13302):     72a2ebe8 72a2ec1c 71b10719 70c52458 70c52458  
I/DEBUG   (13302):     72a2ebf8 71eedbc0 70c46318 df0027ad 00000000  
I/DEBUG   (13302):     72a2ec08 00000040 72a2ec28 70c52458 70c52458  
I/DEBUG   (13302):     72a2ec18 70c52458 71b10719 00423f3c 716ed85b  
I/DEBUG   (13302):     72a2ec28 70c09208 70c46c08 71eedcb0 71eedcb0  
I/DEBUG   (13302):     72a2ec38 71eedbc0 71eedcb0 00000000 00000000  
I/DEBUG   (13302):     72a2ec48 00000000 00000000 00000000 00000000  
I/DEBUG   (13302):     72a2ec58 00000000 00000000 6cf71c28 71ebf070  
I/DEBUG   (13302):     72a2ec68 00000000 7292eef4 72a2ec78 407d9294  
I/DEBUG   (13302):     72a2ec78 7292eeec 00000001 41ca85d0 00000008  
I/DEBUG   (13302):     72a2ec88 00000000 40808415 7292eeec 6e678599  
I/DEBUG   (13302):     72a2ec98 717d494b 71ebf080 41ca85d0 00000000  
I/DEBUG   (13302):     72a2eca8 00000001 400f4228 40858319 00000000  
I/DEBUG   (13302):     72a2ecb8 00000000 00000005 72a2ec98 00000001  
I/DEBUG   (13302):     72a2ecc8 0000ac79 71ebf070 41700b18 6e61a636  
I/DEBUG   (13302):     72a2ecd8 6e6a8bbd 4375c004 6e8e8512 00000000  
I/DEBUG   (13302): 
I/DEBUG   (13302): code around pc:
I/DEBUG   (13302):     716ed104 f7994010 bd10b91e 4604b530 b0856b45  
I/DEBUG   (13302):     716ed114 1d01b9ad f7c9a802 9902fe82 68086c22  
I/DEBUG   (13302):     716ed124 6a016812 310ca801 ff12f0a1 6b609b01  
I/DEBUG   (13302):     716ed134 63639501 fdb0f79f f79f9801 6b60fdad  
I/DEBUG   (13302):     716ed144 bd30b005 461fb5d3 302cf890 46164604  
I/DEBUG   (13302):     716ed154 2201b973 f8801d01 4668202c fe5ff7c9  
I/DEBUG   (13302):     716ed164 680b9900 68806818 f8d26802 478810e0  
I/DEBUG   (13302):     716ed174 b14069a0 0018f104 463b4632 feccf7ff  
I/DEBUG   (13302):     716ed184 bf183000 bddc2001 4601b537 46686884  
I/DEBUG   (13302):     716ed194 3f04f851 0484eb03 fe41f7c9 6818e014  
I/DEBUG   (13302):     716ed1a4 e0096ac5 02f8f8d5 fb17f185 001cf105  
I/DEBUG   (13302):     716ed1b4 f7f92100 4605fcb1 d1f32d00 46689a00  
I/DEBUG   (13302):     716ed1c4 91001d11 fef5f799 42a39b00 bd3ed1e7  
I/DEBUG   (13302):     716ed1d4 4605b530 b0854c11 6824447c 4668b1dc  
I/DEBUG   (13302):     716ed1e4 f7994621 a802fb4b f7dc4621 e00efed5  
I/DEBUG   (13302):     716ed1f4 6b436858 f7ffb12b 6801ff87 4629698a  
I/DEBUG   (13302): 
I/DEBUG   (13302): code around lr:
I/DEBUG   (13302):     716b6e18 ffa5f7f7 b0134620 b537bd30 68484604  
I/DEBUG   (13302):     716b6e28 680b466d 0280eb03 93004668 f7d09201  
I/DEBUG   (13302):     716b6e38 e89df8be e8840003 46200003 0000bd3e  
I/DEBUG   (13302):     716b6e48 41f0e92d f8904604 b086305d d1662b00  
I/DEBUG   (13302):     716b6e58 f8904934 44796075 f1be6809 f10dfd77  
I/DEBUG   (13302):     716b6e68 f7d20107 4605fb69 0007f89d ea35b128  
I/DEBUG   (13302):     716b6e78 bf280525 7596f44f f44fe001 492a7596  
I/DEBUG   (13302):     716b6e88 44794620 f1be6809 f10dfd61 f7d20107  
I/DEBUG   (13302):     716b6e98 f89dfb53 b1211007 0020ea30 2096bf28  
I/DEBUG   (13302):     716b6ea8 2096e000 a9029003 f8d44620 6d678050  
I/DEBUG   (13302):     716b6eb8 f7f89502 6da0f9f2 6805b130 479068aa  
I/DEBUG   (13302):     716b6ec8 6da0b110 fda3f00e b1856a25 305cf894  
I/DEBUG   (13302):     716b6ed8 6d20b16b d1024580 428f6d61 4628d002  
I/DEBUG   (13302):     716b6ee8 f838f090 4628b11e f0a72100 6c22fcc9  
I/DEBUG   (13302):     716b6ef8 f8514621 a8045f3c 0582eb05 ff8df7ff  
I/DEBUG   (13302):     716b6f08 6818e00a 68ca6801 47904621 1d039804  
I/DEBUG   (13302): 
I/DEBUG   (13302): memory map around fault addr 00750020:
I/DEBUG   (13302):     (no map below)
I/DEBUG   (13302):     (no map for address)
I/DEBUG   (13302):     21100000-21200000 
D/dalvikvm( 2902): GC_CONCURRENT freed 399K, 5% free 9458K/9892K, paused 2ms+9ms, total 18ms
I/BootReceiver(  385): Copying /data/tombstones/tombstone_08 to DropBox (SYSTEM_TOMBSTONE)
D/dalvikvm(  385): GC_FOR_ALLOC freed 914K, 19% free 18216K/22488K, paused 55ms, total 56ms
I/WindowState(  385): WIN DEATH: Window{42862300 u0 com.example.mobile.app.BrowserMain}
I/ActivityManager(  385): Process com.example.mobile.app.BrowserMain (pid 3271) has died.
W/ActivityManager(  385): Force removing ActivityRecord{42932180 u0 com.example.mobile.app/.BrowserMain}: app died, no saved state
D/mali_winsys(  778): new_window_surface returns 0x3000
D/Zygote  (  125): Process 3271 terminated by signal (11)

Answer 1

经过一整天的搜索和测试，我弄明白了。我的浏览器有一个设置，可以在关闭浏览器时删除所有 HTML5 网络存储。当我关闭它时，一切正常。所以它实际上与 webview.destroy(); 无关，除了要说:

为了删除所有 HTML5 网络存储，您必须调用 WebStorage.getInstance().deleteAllData();。问题是此 API 调用的未记录问题(错误？)。进行此调用时，您必须有一个 webview 的“Activity ”实例。如果不这样做，WebViewCoreThread 将发送一个 Fatal Signal 11 信号，这将终止您的应用程序。在我的应用程序中，“webview.destroy()”在此 WebStorage API 函数之前被调用，这意味着我在调用时没有“实时”webview。超时之所以起作用，是因为它使 webview 保持足够长的时间，以便 WebStorage API 调用具有可用的“实时”webview。

我在用 3 个按钮制作了一个 super 简单的应用程序后发现了这一点:

1. 创建和加载 WebView
2. 销毁 WebView
3. 删除所有网络存储

如果您手动单击 1、2、3 以使其始终崩溃并出现相同的致命信号 11。但是，如果您单击 1、3 和 THEN 2，它始终有效。所以我制作了另外 2 个按钮，它们执行这 2 个不同的命令，但只需单击一次，它们就会显示相同的结果。

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长话短说:

在删除所有数据之前，始终至少有一个实时 WebView 。所以在 webview.destroy();

之前调用 WebStorage.getInstance().deleteAllData();