安卓应用实现自动更新比较简单,例方这里跟大家介绍下 。源码下载实现
1. web接口
需要提供一个接口供客户端查询更新状态 ,安卓案并且在需要更新时 ,动更告知客户端新APK地址。新功
接口参数如下:
package 包名 ,例方因为有时候会出现同一个应用换包名打包的实现情况
version 版本号 ,即android清单文件里面的安卓案versionCode
channel 渠道号
os 操作系统 ,android/ios。香港云服务器动更ios 这里仅作预留 。新功
之所以传入这些字段 ,例方是要在与服务器端的包匹配时,务必满足:
package, channel, os 相等,并且服务器端的version 大于 客户端传入的version
代码如下:
os = request.GET.get(os)
pkg_name = request.GET.get(package)
channel = request.GET.get(channel)
version = request.GET.get(version)
if not os or not pkg_name or not channel or not version:
return jsonify(**ret_dict)
pkg = Package.objects.filter(
os=os,
package=pkg_name,
channel=channel,
status__gt=config.PACKAGE_STATUS_NOT_UPDATE
).order_by(-version).first
if pkg and int(version) pkg.version:
ret_dict[pkg_status] = str(pkg.status)
ret_dict[pkg_url] = config.WEB_HOST + pkg.file.url
ret_dict[update_prompt] = pkg.info
return jsonify(**ret_dict)
2. 数据库设计
由于web端使用的高防服务器是django ,所以可以很方便的给出运营同学可以操作的后台界面,如下:

注意红框内的元素,运营同学在上传时,是服务器租用不允许修改的,而是由程序自动解析APK文件得到后填入的。
具体的解析方法,我们稍后给出。
而对应的云计算models代码如下:
class Package(models.Model):
file = models.FileField(u文件, upload_to=config.PACKAGE_UPLOAD_PATH)
package = models.CharField(u包名, max_length=255, blank=True, default=)
version = models.IntegerField(u"版本号", blank=True, default=0, null=True)
channel = models.CharField(u"渠道", max_length=128, blank=True, default=)
status = models.IntegerField(u更新状态, default=config.PACKAGE_STATUS_NOT_UPDATE,
choices=config.PACKAGE_UPDATE_STATUS)
info = models.TextField(u通知信息, blank=True, null=True)
os = models.CharField(u操作系统, max_length=64, default=config.PACKAGE_CLIENT_UNKNOW,
choices=config.PACKAGE_CLIENT_OS, blank=True, null=True)
def __unicode__(self):
_,name = os.path.split(self.file.name)
return name
class Meta:
unique_together = (package, version, channel, os)
def save(self, * args, ** kwargs):
# 文件上传成功后,文件名会加上PACKAGE_UPLOAD_PATH路径
path,_ = os.path.split(self.file.name)
if not path:
if self.file.name.endswith(.apk):
self.os = config.PACKAGE_CLIENT_ANDROID
path = os.path.join(/tmp, uuid.uuid4.hex + self.file.name)
# logger.error(path: %s, path)
with open(path, wb+) as destination:
for chunk in self.file.chunks:
destination.write(chunk)
info = parse_apk_info(path)
os.remove(path)
self.package = info.get(package, )
self.version = info.get(version, 0)
self.channel = info.get(channel, )
elif self.file.name.endswith(ipa):
self.os = config.PACKAGE_CLIENT_IOS
super(self.__class__, self).save(*args, ** kwargs)
def display_filename(self):
_,name = os.path.split(self.file.name)
return name
display_filename.short_description = u"文件"
3. APK文件解析
def parse_apk_info(apk_path, tmp_dir=/tmp):
"""
获取包名 、版本、渠道:
{ version: 17, channel: CN_MAIN, package: ‘com.fff.xxx}
:param apk_path:
:return:
"""
from bs4 import BeautifulSoup
import os
import shutil
import uuid
abs_apk_path = os.path.abspath(apk_path)
dst_dir = os.path.join(tmp_dir, uuid.uuid4.hex)
jar_path = os.path.abspath(os.path.join(os.path.dirname(__file__), apktool.jar))
cmd = java -jar %s d %s %s % (jar_path, abs_apk_path, dst_dir)
if isinstance(cmd, unicode):
cmd = cmd.encode(utf8)
# 执行
os.system(cmd)
manifest_path = os.path.join(dst_dir, AndroidManifest.xml)
result = dict
with open(manifest_path, r) as f:
soup = BeautifulSoup(f.read)
result.update(
version=soup.manifest.attrs.get(android:versioncode),
package=soup.manifest.attrs.get(package),
)
channel_soup = soup.find(meta-data, attrs={ android:name: UMENG_CHANNEL})
if channel_soup:
result[channel] = channel_soup.attrs[android:value]
shutil.rmtree(dst_dir)
return result
当然,正如大家所看到的,我们需要依赖于 apktool.jar 这个文件,具体大家可以在网上下载 。
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