打包方法

因为Android在安装apk时，不对META-INF文件夹的文件经行签名校验，

所以可以在这个文件夹随添加/修改相关文件作为渠道标识

python ./package.py xxxxx.apk dev

最后一个参数是想要的渠道名称

读取渠道包

public static String getCustomChannelInfo(Context context){

    if(!TextUtils.isEmpty(mChannel)){
        return mChannel;
    }

    mChannel = "default";

    ApplicationInfo appinfo = context.getApplicationInfo();
    String sourceDir = appinfo.sourceDir;
    Log.d("getChannel sourceDir", sourceDir);

    ZipFile zf = null;
    InputStream in = null;
    ZipInputStream zin = null;

    try {
        zf = new ZipFile(sourceDir);

        in = new BufferedInputStream(new FileInputStream(sourceDir));
        zin = new ZipInputStream(in);

        ZipEntry ze;
        Enumeration<?> entries = zf.entries();

        while (entries.hasMoreElements()) {
            ZipEntry entry = ((ZipEntry) entries.nextElement());
            Log.d("getChannel getName", entry.getName());
            if( entry.getName().equalsIgnoreCase("META-INF/channel_info")){
                long size = entry.getSize();
                if (size > 0) {
                    BufferedReader br = new BufferedReader( new InputStreamReader(zf.getInputStream(entry)));
                    String line;
                    while ((line = br.readLine()) != null) {
                        mChannel = line;
                    }

                    br.close();
                }
            }

        }

    } catch (IOException e) {
        e.printStackTrace();
    }
    finally {
        if(in != null){
            try {
                in.close();
            }
            catch (Exception e){

            }
        }

        if(zin != null){
            try {
                zin.closeEntry();
            }
            catch (Exception e){

            }
        }

        if(zf != null){
            try {
                zin.closeEntry();
            }
            catch (Exception e){

            }
        }
    }

    Log.d("getChannel", mChannel);

    return mChannel;

}