获取手机已安装APK的签名摘要，获取apk签名摘要,将APK发布到应用商店或

获取手机已安装APK的签名摘要，获取apk签名摘要,将APK发布到应用商店或

将APK发布到应用商店或接入第三方的SDK时,有时需要提供APK的签名摘要信息,可以通过摘要算法MD5或SHA-1来获取签名的摘要,除了获取自己的APK签名,也可以获取手机上其他已安装的APK签名,只需要传入其他APK的包名即可. 源码和APK下载地址：https://github.com/whinc/apk-signature-digest

[Java]代码

private static final char[] HEX_CHAR = {    '0', '1', '2', '3', '4', '5', '6', '7',    '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};/** 获取签名的MD5摘要 */public String[] signatureDigest() {   pkgInfo = mContext.getPackageManager().getPackageInfo(               mContext.getPackageName(), PackageManager.GET_SIGNATURES);    int length = pkgInfo.signatures.length;    String[] digests = new String[length];    for (int i = 0; i < length; ++i) {        Signature sign = mPkgInfo.signatures[i];        try {            MessageDigest md5 = MessageDigest.getInstance("MD5");            byte[] digest = md5.digest(sign.toByteArray()); // get digest with md5 algorithm            digests[i] = toHexString(digest);        } catch (NoSuchAlgorithmException e) {            e.printStackTrace();            digests[i] = null;        }    }    return digests;}/** 将字节数组转化为对应的十六进制字符串 */private String toHexString(byte[] rawByteArray) {    char[] chars = new char[rawByteArray.length * 2];    for (int i = 0; i < rawByteArray.length; ++i) {        byte b = rawByteArray[i];        chars[i*2] = HEX_CHAR[(b >>> 4 &amp; 0x0F)];        chars[i*2+1] = HEX_CHAR[(b &amp; 0x0F)];    }    return new String(chars);}

Screenshot.png