android取得パケット名パケット名取得アプリケーション署名

MainActivity    ：

private Signature[] getRawSignature(Context paramContext, String paramString) {
    if ((paramString == null) || (paramString.length() == 0)) {

        return null;
    }
    PackageManager localPackageManager = paramContext.getPackageManager();
    PackageInfo localPackageInfo;
    try {
        localPackageInfo = localPackageManager.getPackageInfo(paramString, PackageManager.GET_SIGNATURES);
        if (localPackageInfo == null) {

            return null;
        }
    } catch (PackageManager.NameNotFoundException localNameNotFoundException) {

        return null;
    }
    return localPackageInfo.signatures;
}

/**
 *       
 * @param packageName   
 * @return
 */
private void getSign(String packageName) {
    Signature[] arrayOfSignature = getRawSignature(this, packageName);
    if ((arrayOfSignature == null) || (arrayOfSignature.length == 0)){

        return;
    }

    Log.e(TAG, Md5.getMessageDigest(arrayOfSignature[0].toByteArray()));
}

 
新規MD 5クラス:

public final class Md5
{
    public static final String getMessageDigest(byte[] paramArrayOfByte)
    {
        char[] arrayOfChar1 = { 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 97, 98, 99, 100, 101, 102 };
        try
        {
            MessageDigest localMessageDigest = MessageDigest.getInstance("MD5");
            localMessageDigest.update(paramArrayOfByte);
            byte[] arrayOfByte = localMessageDigest.digest();
            int i = arrayOfByte.length;
            char[] arrayOfChar2 = new char[i * 2];
            int j = 0;
            int k = 0;
            while (true)
            {
                if (j >= i)
                    return new String(arrayOfChar2);
                int m = arrayOfByte[j];
                int n = k + 1;
                arrayOfChar2[k] = arrayOfChar1[(0xF & m >>> 4)];
                k = n + 1;
                arrayOfChar2[n] = arrayOfChar1[(m & 0xF)];
                j++;
            }
        }
        catch (Exception localException)
        {
        }
        return null;
    }

    public static final byte[] getRawDigest(byte[] paramArrayOfByte)
    {
        try
        {
            MessageDigest localMessageDigest = MessageDigest.getInstance("MD5");
            localMessageDigest.update(paramArrayOfByte);
            byte[] arrayOfByte = localMessageDigest.digest();
            return arrayOfByte;
        }
        catch (Exception localException)
        {
        }
        return null;
    }
}