Kivy 在启动时在 Android 中崩溃答案

【问题标题】：Kivy crashes in Android on launchKivy 在启动时在 Android 中崩溃
【发布时间】：2014-06-19 05:21:57
【问题描述】：

当我在我的 Android 手机 (Samsung GSIII) 上启动我的 Kivy 应用程序时，会出现启动画面，然后它会崩溃并返回到我之前的屏幕。经过反复试验，我确定了我的 ws4py 导入导致了错误这一事实。

我在要求requirements = kivy,ws4py 下将ws4py 添加到我的buildozer.spec 文件中，并且在运行$>buildozer android debug 时似乎可以正确下载。查看 ws4py 的源代码并阅读文档，除了标准库中的模块之外没有其他导入，因此它似乎不是依赖问题（但也许是？）。

DDMS 日志在这里：

05-02 09:17:29.677: D/dalvikvm(22120): Trying to load lib /data/app-lib/com.shufudesign.drmb-2/libsdl.so 0x422833c8
05-02 09:17:29.687: D/dalvikvm(22120): Added shared lib /data/app-lib/com.shufudesign.drmb-2/libsdl.so 0x422833c8
05-02 09:17:29.687: D/dalvikvm(22120): Trying to load lib /data/app-lib/com.shufudesign.drmb-2/libsdl_image.so 0x422833c8
05-02 09:17:29.697: D/dalvikvm(22120): Added shared lib /data/app-lib/com.shufudesign.drmb-2/libsdl_image.so 0x422833c8
05-02 09:17:29.697: D/dalvikvm(22120): No JNI_OnLoad found in /data/app-lib/com.shufudesign.drmb-2/libsdl_image.so 0x422833c8, skipping init
05-02 09:17:29.697: D/dalvikvm(22120): Trying to load lib /data/app-lib/com.shufudesign.drmb-2/libsdl_ttf.so 0x422833c8
05-02 09:17:29.697: D/dalvikvm(22120): Added shared lib /data/app-lib/com.shufudesign.drmb-2/libsdl_ttf.so 0x422833c8
05-02 09:17:29.697: D/dalvikvm(22120): No JNI_OnLoad found in /data/app-lib/com.shufudesign.drmb-2/libsdl_ttf.so 0x422833c8, skipping init
05-02 09:17:29.697: D/dalvikvm(22120): Trying to load lib /data/app-lib/com.shufudesign.drmb-2/libsdl_mixer.so 0x422833c8
05-02 09:17:29.707: D/dalvikvm(22120): Added shared lib /data/app-lib/com.shufudesign.drmb-2/libsdl_mixer.so 0x422833c8
05-02 09:17:29.707: D/dalvikvm(22120): No JNI_OnLoad found in /data/app-lib/com.shufudesign.drmb-2/libsdl_mixer.so 0x422833c8, skipping init
05-02 09:17:29.707: D/dalvikvm(22120): Trying to load lib /data/app-lib/com.shufudesign.drmb-2/libpython2.7.so 0x422833c8
05-02 09:17:29.727: D/dalvikvm(22120): Added shared lib /data/app-lib/com.shufudesign.drmb-2/libpython2.7.so 0x422833c8
05-02 09:17:29.727: D/dalvikvm(22120): No JNI_OnLoad found in /data/app-lib/com.shufudesign.drmb-2/libpython2.7.so 0x422833c8, skipping init
05-02 09:17:29.727: D/dalvikvm(22120): Trying to load lib /data/app-lib/com.shufudesign.drmb-2/libapplication.so 0x422833c8
05-02 09:17:29.727: D/dalvikvm(22120): Added shared lib /data/app-lib/com.shufudesign.drmb-2/libapplication.so 0x422833c8
05-02 09:17:29.727: D/dalvikvm(22120): No JNI_OnLoad found in /data/app-lib/com.shufudesign.drmb-2/libapplication.so 0x422833c8, skipping init
05-02 09:17:29.727: D/dalvikvm(22120): Trying to load lib /data/app-lib/com.shufudesign.drmb-2/libsdl_main.so 0x422833c8
05-02 09:17:29.727: D/dalvikvm(22120): Added shared lib /data/app-lib/com.shufudesign.drmb-2/libsdl_main.so 0x422833c8
05-02 09:17:29.737: D/dalvikvm(22120): No JNI_OnLoad found in /data/app-lib/com.shufudesign.drmb-2/libsdl_main.so 0x422833c8, skipping init
05-02 09:17:29.737: D/dalvikvm(22120): Trying to load lib /data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/_io.so 0x422833c8
05-02 09:17:29.737: D/dalvikvm(22120): Added shared lib /data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/_io.so 0x422833c8
05-02 09:17:29.737: D/dalvikvm(22120): No JNI_OnLoad found in /data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/_io.so 0x422833c8, skipping init
05-02 09:17:29.737: D/dalvikvm(22120): Trying to load lib /data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/unicodedata.so 0x422833c8
05-02 09:17:29.747: D/dalvikvm(22120): Added shared lib /data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/unicodedata.so 0x422833c8
05-02 09:17:29.747: D/dalvikvm(22120): No JNI_OnLoad found in /data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/unicodedata.so 0x422833c8, skipping init
05-02 09:17:29.747: D/dalvikvm(22120): Trying to load lib /data/app-lib/com.shufudesign.drmb-2/libsqlite3.so 0x422833c8
05-02 09:17:29.757: D/dalvikvm(22120): Added shared lib /data/app-lib/com.shufudesign.drmb-2/libsqlite3.so 0x422833c8
05-02 09:17:29.757: D/dalvikvm(22120): No JNI_OnLoad found in /data/app-lib/com.shufudesign.drmb-2/libsqlite3.so 0x422833c8, skipping init
05-02 09:17:29.757: D/dalvikvm(22120): Trying to load lib /data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/_sqlite3.so 0x422833c8
05-02 09:17:29.757: D/dalvikvm(22120): Added shared lib /data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/_sqlite3.so 0x422833c8
05-02 09:17:29.757: D/dalvikvm(22120): No JNI_OnLoad found in /data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/_sqlite3.so 0x422833c8, skipping init
05-02 09:17:29.767: D/dalvikvm(22120): Trying to load lib /data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/_imaging.so 0x422833c8
05-02 09:17:29.767: E/dalvikvm(22120): dlopen("/data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/_imaging.so") failed: dlopen failed: library "/data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload/_imaging.so" not found
05-02 09:17:30.488: I/python(22120): ['/data/data/com.shufudesign.drmb/files/lib/python2.7/site-packages', '/data/data/com.shufudesign.drmb/files/lib/site-python']
05-02 09:17:30.488: I/python(22120): Android path ['/data/data/com.shufudesign.drmb/files/lib/python27.zip', '/data/data/com.shufudesign.drmb/files/lib/python2.7', '/data/data/com.shufudesign.drmb/files/lib/python2.7/lib-dynload', '/data/data/com.shufudesign.drmb/files/lib/python2.7/site-packages', '/data/data/com.shufudesign.drmb/files', '/data/data/com.shufudesign.drmb/files/lib/python2.7/site-packages/PIL', '/data/data/com.shufudesign.drmb/files/_applibs']
05-02 09:17:30.908: I/python(22120): [INFO              ] [Logger      ] Record log in /data/data/com.shufudesign.drmb/files/.kivy/logs/kivy_14-05-02_0.txt
05-02 09:17:31.990: I/python(22120):  /data/data/com.shufudesign.drmb/files/lib/python2.7/site-packages/kivy/core/image/img_pygame.py:12: RuntimeWarning: import cdrom: No module named cdrom
05-02 09:17:32.250: I/ActivityManager(610): Process com.shufudesign.drmb:python (pid 22120) (adj 0) has died.
05-02 09:17:32.250: W/ActivityManager(610): Force removing ActivityRecord{42ed13d0 u0 com.shufudesign.drmb/org.renpy.android.PythonActivity}: app died, no saved state

我查看了一些关于 kivy 和 python-for-android google 小组的问题，他们对 _imaging.so 错误有相同的问题。响应似乎是没有引起问题。我删除了我的应用程序中的所有内容，除了画一个圆圈（这有效）然后添加 ws4py 导入（这会破坏所有内容）。

除了将第三方库添加到规范文件之外，我还有什么遗漏的吗？在 Ubuntu 中运行时一切正常。任何帮助将不胜感激，因为我的应用程序依赖网络套接字连接到我的后端。

【问题讨论】：

RuntimeWarning: import cdrom: No module named cdrom -- 这就是杀死你的应用程序的原因。 pygame.cdrom 是一个 C 扩展模块，C 扩展模块可能会无缘无故地导致重大问题。 ;) 我注意到 ws4py 可以使用 setuptools 或 distutils 构建 - 您是否尝试将 setuptools 添加到您的要求中？
我添加了 setuptools 但它仍然给我同样的import cdrom 错误:(

标签： android python kivy ws4py

【解决方案1】：

您是否启用了 INTERNET Android 权限？

另外，ws4py 有很多你可能需要添加的依赖项。我可以看到问题，尤其是龙卷风、gevent 和 cython。 https://github.com/Lawouach/WebSocket-for-Python/blob/master/requirements/py2kreqs.txt

【讨论】：

是的，互联网权限已启用。另外我只使用 ws4py 的基本客户端，它不包含那些依赖项，只需要标准库。ws4py.readthedocs.org/en/latest/sources/requirements
我正在使用内置客户端“该客户端完全基于 Python 标准库，它使用线程来运行内部处理循环。”
@brousch：ws4py 没有强制依赖项。然而，它的一些后端确实需要其中一些，只有当你使用它们时。但是 ws4py 不会为你下载它们。

【解决方案2】：

遇到同样的问题。将 openssl 添加到所需模块列表中解决了该问题（即 buildozer.spec 中的“requirements = openssl、ws4py、kivy”）。

它有助于使用snakefood 列出由python 脚本加载的每个模块。详情请见list python package dependencies without loading them?。

【讨论】：