利用Python开发App实战
Python网络爬虫与数据挖掘
共 7572字,需浏览 16分钟
·
2020-12-18 18:07
来源:https://blog.csdn.net/nmask
我很早之前就想开发一款app玩玩,无奈对java不够熟悉,之前也没有开发app的经验,因此一直耽搁了。最近想到尝试用python开发一款app,google搜索了一番后,发现确实有路可寻,目前也有了一些相对成熟的模块,于是便开始了动手实战,过程中发现这其中有很多坑,好在最终依靠google解决了,因此小记一番。
说在前面的话
准备工作
搭建kivy开发环境
install kivy for mac
brew install pkg-config sdl2 sdl2_image sdl2_ttf sdl2_mixer gstreamer
安装cython以及kivy:
pip install cython==0.25
pip install kivy
如果安装kivy报错,则使用下面的方式安装kivy:
git clone https://github.com/kivy/kivy
python setup.py install
安装后测试:
$python
Python 2.7.10 (default, Jul 15 2017, 17:16:57)
[on darwin ]
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import kivy
[in /Users/didi/.kivy/logs/kivy_18-05-08_4.txt ] [Logger ] Record log
[.10.1.dev0, git-5f6c66e, 20180507 ] [Kivy ] v1
[.7.10 (default, Jul 15 2017, 17:16:57) ] [Python ] v2
[ ]
install kivy for centos7
yum install \
make \
mercurial \
automake \
gcc \
gcc-c++ \
SDL_ttf-devel \
SDL_mixer-devel \
khrplatform-devel \
mesa-libGLES \
mesa-libGLES-devel \
gstreamer-plugins-good \
gstreamer \
gstreamer-python \
mtdev-devel \
python-devel \
python-pip \
java-devel
安装cython以及kivy:
pip install Cython==0.20
pip install kivy
用kivy开发第一个python app
#! -*- coding:utf-8 -*-
from kivy.app import App
class HelloApp(App):
pass
if __name__ == '__main__':
HelloApp().run()
2)创建一个hello.kv文件,写入:
Label:
text: 'Hello, World! I am nMask'
运行第一个python app
python main.py
安装buildozer工具
pip install buildozer
使用buildozer工具将kivy程序打包成apk
buildozer init
运行成功将会创建一个配置文件buildozer.spec,可以通过修改配置文件更改app的名称等,然后运行:
buildozer android debug deploy run
python apk程序测试
buildozer使用说明
Usage:
buildozer [--profile
] [--verbose] [target] ... buildozer --version
Available targets:
android Android target, based on python-for-android project
ios iOS target, based on kivy-ios project
android_old Android target, based on python-for-android project (old toolchain)
Global commands (without target):
distclean Clean the whole Buildozer environment.
help Show the Buildozer help.
init Create a initial buildozer.spec in the current directory
serve Serve the bin directory via SimpleHTTPServer
setdefault Set the default command to run when no arguments are given
version Show the Buildozer version
Target commands:
clean Clean the target environment
update Update the target dependencies
debug Build the application in debug mode
release Build the application in release mode
deploy Deploy the application on the device
run Run the application on the device
serve Serve the bin directory via SimpleHTTPServer
Target "android_old" commands:
adb Run adb from the Android SDK. Args must come after --, or
use --alias to make an alias
logcat Show the log from the device
Target "ios" commands:
list_identities List the available identities to use for signing.
xcode Open the xcode project.
Target "android" commands:
adb Run adb from the Android SDK. Args must come after --, or
use --alias to make an alias
logcat Show the log from the device
p4a Run p4a commands. Args must come after --, or use --alias
to make an alias
buildozer打包过程中的坑点
报错:You might have missed to install 32bits libs
yum -y install --skip-broken glibc.i686 arts.i686 audiofile.i686 bzip2-libs.i686 cairo.i686 cyrus-sasl-lib.i686 dbus-libs.i686 directfb.i686 esound-libs.i686 fltk.i686 freeglut.i686 gtk2.i686 hal-libs.i686 imlib.i686 lcms-libs.i686 lesstif.i686 libacl.i686 libao.i686 libattr.i686 libcap.i686 libdrm.i686 libexif.i686 libgnomecanvas.i686 libICE.i686 libieee1284.i686 libsigc++20.i686 libSM.i686 libtool-ltdl.i686 libusb.i686 libwmf.i686 libwmf-lite.i686 libX11.i686 libXau.i686 libXaw.i686 libXcomposite.i686 libXdamage.i686 libXdmcp.i686 libXext.i686 libXfixes.i686 libxkbfile.i686 libxml2.i686 libXmu.i686 libXp.i686 libXpm.i686 libXScrnSaver.i686 libxslt.i686 libXt.i686 libXtst.i686 libXv.i686 libXxf86vm.i686 lzo.i686 mesa-libGL.i686 mesa-libGLU.i686 nas-libs.i686 nss_ldap.i686 cdk.i686 openldap.i686 pam.i686 popt.i686 pulseaudio-libs.i686 sane-backends-libs-gphoto2.i686 sane-backends-libs.i686 SDL.i686 svgalib.i686 unixODBC.i686 zlib.i686 compat-expat1.i686 compat-libstdc++-33.i686 openal-soft.i686 alsa-oss-libs.i686 redhat-lsb.i686 alsa-plugins-pulseaudio.i686 alsa-plugins-oss.i686 alsa-lib.i686 nspluginwrapper.i686 libXv.i686 libXScrnSaver.i686 qt.i686 qt-x11.i686 pulseaudio-libs.i686 pulseaudio-libs-glib2.i686 alsa-plugins-pulseaudio.i686 python-matplotli
报错:Error compiling Cython file
pip install cython==0.25
报错:IOError: [Errno 2] No such file or directory…..
from distutils.version import LooseVersion
(2) 将786行:XXX found how the apk name is really built from the title这一行以下的代码替换为:
__sdk_dir = self.android_sdk_dir
build_tools_versions = os.listdir(join(__sdk_dir, 'build-tools'))
build_tools_versions = sorted(build_tools_versions, key=LooseVersion)
build_tools_version = build_tools_versions[-1]
gradle_files = ["build.gradle", "gradle", "gradlew"]
is_gradle_build = any((exists(join(dist_dir, x)) for x in gradle_files)) and build_tools_version >= ’25.0'
buildozer虚拟机
kivy开发实例
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