目前Android多渠道打包主要两种方式:
Gradle方式。
在build.gradle配置:
productFlavors {
huawei {
manifestPlaceholders = [UMENG_CHANNEL_VALUE: "huawei"]
}
xiaomi {
manifestPlaceholders = [UMENG_CHANNEL_VALUE: "xiaomi"]
}
...
}
渠道多的时候会导致gradle文件很长,如果想简化书写可以这样做:
在build.gradle中配置如下:
Properties properties = new Properties()
properties.load(project.rootProject.file('local.properties').newDataInputStream())
...
android{
...
productFlavors {
def channelArray = properties.getProperty("channel").split(";");
for (int i = 0; i < channelArray.size(); i++) {
def channel = channelArray[i]
"${channel}" {
manifestPlaceholders = [CHANNEL_VALUE: channel]
}
}
}
...
}
local.properties中添加所有渠道号:channel=wandoujia;_360;yingyongbao;xiaomi;baidu;huawei;...
当渠道很多的时候,每次打包的时间要几十分钟到几个小时,那么有没有更快速的方式呢,请看第二种方式。
META-INF方式。
使用此种方式可以动态获取当前渠道号,极大节省了打包时间。
/**
* 友盟配置
在application onCreate方法调用
*/
private void umengConfig() {
String channel = getChannelFromApk(application, "channel-");
if (TextUtils.isEmpty(channel)) {
channel = "default";
}
if (BuildConfig.IS_DEBUG) {
Toast.makeText(application, "当前渠道:" + channel, Toast.LENGTH_SHORT).show();
}
AnalyticsConfig.setChannel(channel);
}
/**
* 从apk中获取版本信息
* @param context
* @param channelPrefix 渠道前缀
* @return
*/
public static String getChannelFromApk(Context context, String channelPrefix) {
//从apk包中获取
ApplicationInfo appinfo = context.getApplicationInfo();
String sourceDir = appinfo.sourceDir;
//默认放在meta-inf/里, 所以需要再拼接一下
String key = "META-INF/" + channelPrefix;
String ret = "";
ZipFile zipfile = null;
try {
zipfile = new ZipFile(sourceDir);
Enumeration<?> entries = zipfile.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = ((ZipEntry) entries.nextElement());
String entryName = entry.getName();
if (entryName.startsWith(key)) {
ret = entryName;
break;
}
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (zipfile != null) {
try {
zipfile.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
String[] split = ret.split(channelPrefix);
String channel = "";
if (split != null && split.length >= 2) {
channel = ret.substring(key.length());
}
return channel;
}
每次动态获取应用包下meta-inf文件夹中的渠道文件取得渠道号,那么meta-inf下的渠道文件如何添加呢?我们可以使用python脚本来做这件事。
#!/usr/bin/python
# coding=utf-8
import zipfile
import shutil
import os
import ConfigParser
#读取配置文件
config = ConfigParser.ConfigParser()
config.read("channels-config.ini")
#apk路径
apk_path = config.get("Build-Config", "apk.path")
print "src apk path=" + apk_path
#渠道识别前缀
channel_prefix = config.get("Build-Config", "channel.prefix")
print "channel prefix=" + channel_prefix
#渠道列表
channel_list = config.get("Build-Config", "channel.list")
print "channel list=" + channel_list
#解析渠道,生成渠道数组
channel_array = channel_list.split(',')
# 空文件 便于写入此空文件到apk包中作为channel文件
src_temp_file = 'temp_.txt'
# 创建一个空文件(不存在则创建)
f = open(src_temp_file, 'w')
f.close()
src_apk = apk_path
# file name (with extension)
src_apk_file_name = os.path.basename(src_apk)
# 分割文件名与后缀
temp_list = os.path.splitext(src_apk_file_name)
# name without extension
src_apk_name = temp_list[0]
# 后缀名,包含. 例如: ".apk "
src_apk_extension = temp_list[1]
# 创建生成目录,与文件名相关
output_dir = 'apks_' + src_apk_name + '/'
# 目录不存在则创建
if not os.path.exists(output_dir):
os.mkdir(output_dir)
# 遍历渠道号并创建对应渠道号的apk文件
for line in channel_array:
# 获取当前渠道号,因为从渠道文件中获得带有\n,所有strip一下
target_channel = line.strip()
# 拼接对应渠道号的apk
target_apk = output_dir + src_apk_name + "-" + target_channel + src_apk_extension
# 拷贝建立新apk
shutil.copy(src_apk, target_apk)
# zip获取新建立的apk文件
zipped = zipfile.ZipFile(target_apk, 'a', zipfile.ZIP_DEFLATED)
# 初始化渠道信息
target_channel_file = "META-INF/" + channel_prefix + "{channel}".format(channel = target_channel)
# 写入渠道信息
zipped.write(src_temp_file, target_channel_file)
# 关闭zip流
zipped.close()
#删除临时文件
os.remove(src_temp_file)
channels-config.ini文件如下:
[Build-Config]
apk.path = your apk path
channel.prefix = channel-
channel.list = baidu,xiaomi