Kivy 应用程序使用 buildozer 成功构建，但在 android 手机上打开时崩溃

Kivy app build successfully using buildozer but crashes when opened on android phone(Kivy 应用程序使用 buildozer 成功构建，但在 android 手机上打开时崩溃)

问题描述

我正在使用 kivy 构建一个应用程序，它可以在我的 Linux 笔记本电脑上完美运行.我使用 buildozer 为 android 构建应用程序，并且日志没有显示任何错误.完成后，会在 bin 文件夹中创建 apk 文件.

然后我复制 apk 文件并将其粘贴到我的手机存储中，然后安装该应用程序.

当我打开应用程序时，它会显示 kivy 徽标并正在加载……但随后它崩溃了！我尝试了一整天来寻找解决方案，但我无法实现.

我在谷歌搜索问题时发现了这个命令，它应该有助于调试，但我无法理解输出！:

buildozer android logcat

这是我运行此命令时打印的日志

 # 确保构建布局# 检查配置令牌# 运行 'dpkg --version'# Cwd 无Debian 'dpkg' 软件包管理程序版本 1.19.0.5 (amd64).这是免费软件；请参阅 GNU 通用公共许可证版本 2 或稍后用于复制条件.没有保修.# 搜索 Git (git)#->在/usr/bin/git 找到# 搜索 Cython (cython)#->在/home/nidhal/.local/bin/cython 找到# 搜索Java编译器(javac)#->位于/usr/lib/jvm/java-11-openjdk-amd64/bin/javac# 搜索Java keytool (keytool)#->位于/usr/lib/jvm/java-11-openjdk-amd64/bin/keytool# 运行'/home/nidhal/.buildozer/android/platform/android-sdk/platform-tools/adb devices'# Cwd 无附加设备列表nidhal@nidhal-Latitude-E6320:~/Desktop/my_code/deep-translator-app$ clearnidhal@nidhal-Latitude-E6320:~/Desktop/my_code/deep-translator-app$ buildozer android logcat# 检查配置令牌# 确保构建布局# 检查配置令牌# 运行 'dpkg --version'# Cwd 无Debian 'dpkg' 软件包管理程序版本 1.19.0.5 (amd64).这是免费软件；请参阅 GNU 通用公共许可证版本 2 或稍后用于复制条件.没有保修.# 搜索 Git (git)#->在/usr/bin/git 找到# 搜索 Cython (cython)#->在/home/nidhal/.local/bin/cython 找到# 搜索Java编译器(javac)#->位于/usr/lib/jvm/java-11-openjdk-amd64/bin/javac# 搜索Java keytool (keytool)#->位于/usr/lib/jvm/java-11-openjdk-amd64/bin/keytool# 运行'/home/nidhal/.buildozer/android/platform/android-sdk/platform-tools/adb devices'# Cwd 无附加设备列表

此外，我尝试在使用此命令运行构建时存储整个日志:

buildozer android debug deploy run logcat >日志.txt

这是日志文件

此外，以下是我对默认 buildozer.spec 文件所做的更改:

[应用程序]# (str) 应用程序的标题标题 = 整体翻译# (str) 包名package.name = 整体翻译器# (str) 包域(android/ios打包需要)package.domain = org.nidhal.overallTranslator# (str) main.py 所在的源代码源.dir = .# (list) 要包含的源文件(留空以包含所有文件)source.include_exts = py,png,jpg,kv,atlas,ttf# (list) 使用模式匹配的包含列表source.include_patterns = assets/*,images/*.png, font/*.ttf# (list) 要排除的源文件(留空不排除任何内容)source.exclude_exts = 规范、txt、md、gitignore# (list) 要排除的目录列表(留空表示不排除任何内容)source.exclude_dirs = 测试、bin、venv# (list) 使用模式匹配的排除列表#source.exclude_patterns = 许可证，图像/*/*.jpg# (str) 应用程序版本控制(方法 1)#版本 = 0.1# (str) 应用程序版本控制(方法 2)version.regex = __version__ = ['"](.*)['"]version.filename = %(source.dir)s/main.py# (list) 申请要求# 逗号分隔例如要求 = sqlite3,kivy要求 = hostpython3==3.7.8,python3==3.7.8,kivy==1.11.1,beautifulsoup4,bs4,certifi,chardet,docutils,future,idna,Kivy-Garden,Pygments,requests,六,soupsieve,urllib3, 深度翻译器, 阿拉伯语整形器, python-bidi, openssl# (str) 需求的自定义源文件夹# 为带有配方的任何要求设置自定义源# requirements.source.kivy = ../../kivy#(列表)花园要求#garden_requirements =# (str) 应用程序的预启动#presplash.filename = %(source.dir)s/data/presplash.png# (str) 应用程序的图标#icon.filename = %(source.dir)s/data/icon.png# (str) 支持的方向(横向、传感器横向、纵向或全部之一)方向=纵向# (list) 要声明的服务列表#services = NAME:ENTRYPOINT_TO_PY,NAME2:ENTRYPOINT2_TO_PY## OSX 特定###作者=©版权信息# 更改应用程序使用的 python 的主要版本osx.python_version = 3# 要使用的 Kivy 版本osx.kivy_version = 1.9.1#

编辑

这是 logcat 的输出p>

Edit2:在解决了@inclement 解决的 no module found 错误后，该应用程序仍然在我的 Android 手机上崩溃.这是我在运行应用程序时收到的新 logcat

经过几天的调试，我终于找到了错误，这是我在项目中使用的一些第三方库引起的.很明显kivy、buildozer或者python-for-android都解析不了这个(不知道是怎么打包的).

如果有人遇到这个问题，我强烈建议使用模拟器进行调试，而不是依赖 logcat.就我而言，logcat 没用.它没有告诉我有关错误的任何信息.

我需要逐步尝试删除依赖项，直到发现错误.@inclement 的回答和评论也很有帮助.

I'm building an app using kivy and it works perfectly on my Linux laptop. I build the app for android using buildozer and the log does not show any errors. When it was complete, the apk file is created in the bin folder.

I then copy the apk file and paste it on my phone storage and then install the app.

When I open the app, it shows the kivy logo and loading... but then it crashes! I tried the whole day to find a solution but I could not achieve that.

I find this command while googling the problem and it should be helpful for debugging but I can't understand the output!:

buildozer android logcat

This is the log that gets printed when I run this command

    # Ensure build layout
# Check configuration tokens
# Run 'dpkg --version'
# Cwd None
Debian 'dpkg' package management program version 1.19.0.5 (amd64).
This is free software; see the GNU General Public License version 2 or
later for copying conditions. There is NO warranty.
# Search for Git (git)
#  -> found at /usr/bin/git
# Search for Cython (cython)
#  -> found at /home/nidhal/.local/bin/cython
# Search for Java compiler (javac)
#  -> found at /usr/lib/jvm/java-11-openjdk-amd64/bin/javac
# Search for Java keytool (keytool)
#  -> found at /usr/lib/jvm/java-11-openjdk-amd64/bin/keytool
# Run '/home/nidhal/.buildozer/android/platform/android-sdk/platform-tools/adb devices'
# Cwd None
List of devices attached

nidhal@nidhal-Latitude-E6320:~/Desktop/my_code/deep-translator-app$ clear

nidhal@nidhal-Latitude-E6320:~/Desktop/my_code/deep-translator-app$ buildozer android logcat
# Check configuration tokens
# Ensure build layout
# Check configuration tokens
# Run 'dpkg --version'
# Cwd None
Debian 'dpkg' package management program version 1.19.0.5 (amd64).
This is free software; see the GNU General Public License version 2 or
later for copying conditions. There is NO warranty.
# Search for Git (git)
#  -> found at /usr/bin/git
# Search for Cython (cython)
#  -> found at /home/nidhal/.local/bin/cython
# Search for Java compiler (javac)
#  -> found at /usr/lib/jvm/java-11-openjdk-amd64/bin/javac
# Search for Java keytool (keytool)
#  -> found at /usr/lib/jvm/java-11-openjdk-amd64/bin/keytool
# Run '/home/nidhal/.buildozer/android/platform/android-sdk/platform-tools/adb devices'
# Cwd None
List of devices attached

Furthermore, I tried to store the whole log when running the build using this command:

buildozer android debug deploy run logcat > log.txt

here is the log file

Moreover, here are the changes that I made to the default buildozer.spec file:

[app]

# (str) Title of your application
title = Overall Translator

# (str) Package name
package.name = overallTranslator

# (str) Package domain (needed for android/ios packaging)
package.domain = org.nidhal.overallTranslator

# (str) Source code where the main.py live
source.dir = .

# (list) Source files to include (let empty to include all the files)
source.include_exts = py,png,jpg,kv,atlas,ttf

# (list) List of inclusions using pattern matching
source.include_patterns = assets/*,images/*.png, font/*.ttf

# (list) Source files to exclude (let empty to not exclude anything)
source.exclude_exts = spec, txt, md, gitignore

# (list) List of directory to exclude (let empty to not exclude anything)
source.exclude_dirs = tests, bin, venv

# (list) List of exclusions using pattern matching
#source.exclude_patterns = license,images/*/*.jpg

# (str) Application versioning (method 1)
#version = 0.1

# (str) Application versioning (method 2)
version.regex = __version__ = ['"](.*)['"]
version.filename = %(source.dir)s/main.py

# (list) Application requirements
# comma separated e.g. requirements = sqlite3,kivy
requirements = hostpython3==3.7.8,python3==3.7.8,kivy==1.11.1, beautifulsoup4, bs4, certifi,chardet,docutils, future, idna, Kivy-Garden, Pygments, requests, six, soupsieve, urllib3, deep-translator, arabic-reshaper, python-bidi, openssl

# (str) Custom source folders for requirements
# Sets custom source for any requirements with recipes
# requirements.source.kivy = ../../kivy

# (list) Garden requirements
#garden_requirements =

# (str) Presplash of the application
#presplash.filename = %(source.dir)s/data/presplash.png

# (str) Icon of the application
#icon.filename = %(source.dir)s/data/icon.png

# (str) Supported orientation (one of landscape, sensorLandscape, portrait or all)
orientation = portrait

# (list) List of service to declare
#services = NAME:ENTRYPOINT_TO_PY,NAME2:ENTRYPOINT2_TO_PY

#
# OSX Specific
#

#
# author = © Copyright Info

# change the major version of python used by the app
osx.python_version = 3

# Kivy version to use
osx.kivy_version = 1.9.1

#

EDIT

here is the output of the logcat

Edit2: After resolving the no module found error adressed by @inclement, the app still crashes on my android phone. Here is the new logcat i receive when i run the app

After days of debugging, I finally find the error, which is caused by some third party libraries that I used in my project. Obviously, kivy, buildozer or python-for-android could not parse this (I don't know how the packaging is done).

If anyone is having this problem, I highly recommend debugging with an emulator and not relying on the logcat. In my case the logcat was useless. It did not tell me nothing about the error.

I needed to try step by step removing dependencies until I found the error. Answer and comment of @inclement were also helpful.

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