Android快速打包多了渠道APK

直接使用加压工具打开apk 在META-INF/channel_渠道信息 就可以改变渠道 一个apk

ChannelUtils

import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.text.TextUtils;
import android.util.Log;
import java.io.IOException;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
public class ChannelUtils {
    private static final String TAG = "ChannelUtils"; 
    public static String getChannel(Context context){
        String encrypteCN = "";
        try{
            encrypteCN = SyhdEncrypt.Encrypt(getSDKChannel(context), SyhdEncrypt.SYHD_ENCRPYT_PWD);
            Log.i(TAG,"encrypteCN = "+encrypteCN);
        } catch(Exception e){
            Log.i(TAG, "login e = "+e.getMessage());
        }
        return encrypteCN;
    }
    public static String getSDKChannel(Context context){
        return TextUtils.isEmpty(ChannelUtils.getChannelName(context))? getAppChannel(context):ChannelUtils.getChannelName(context);
    }
    public static String getAppChannel(Context context) {
        String channelName = null;
        try {
            String pkgName = context.getPackageName();
            PackageManager manager = context.getPackageManager();
            ApplicationInfo appInfo = manager.getApplicationInfo(
                    pkgName, PackageManager.GET_META_DATA);
            channelName = appInfo.metaData.getString("CHANNEL");
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        } finally {
            if (null == channelName || channelName.equals("MTest")) {
                channelName = "test";
            }
        }
        Log.i("-ChannelName-",channelName);
        return channelName;
    }
    public static String getChannelName(Context context) {
        //从apk包中获取
        ApplicationInfo appInfo = context.getApplicationInfo();
        String sourceDir = appInfo.sourceDir;
        //注意这里：默认放在meta-inf/里， 所以需要再拼接一下
        String key = "META-INF/channel";
        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();
            Log.i("-ChannelName-",e.getMessage());
        } finally {
            if (zipfile != null) {
                try {
                    zipfile.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        String[] split = ret.split("_");
        String channel = "";
        if (split != null && split.length >= 2) {
            channel = ret.substring(split[0].length() + 1);
        }
        Log.i("-ChannelName-",channel);
        return channel;
    }
}

SyhdEncrypt

import android.util.Base64;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

public class SyhdEncrypt {
    final public static String SYHD_ENCRPYT_PWD = "2AUxV49EGeJTwvLc";

    public static String Encrypt(String sSrc, String sKey) throws Exception {
        if (sKey == null) {
            return null;
        }
        if (sKey.length() != 16) {
            return null;
        }
        byte[] raw = sKey.getBytes("utf-8");
        SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
        byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
        //return new String(Base64.encode(encrypted,Base64.URL_SAFE|Base64.NO_WRAP|Base64.NO_PADDING));
        return new String(Base64.encode(encrypted,Base64.DEFAULT)).replaceAll("[\\s*\t\n\r]", "");
    }

}

在文件META-INF/中添加渠道信息导致无法安装

原因 使用v2签名对apk文件修改后需要重签名