Is there a way to check if an app signature is debug or published?

Question

I am currently developing RPC services for developers to use, but would like to make sure that I can distinguish between another app\'s debug key and their public key. Is there

Answer 1

static final String DEBUGKEY = 
      " key ";    


public static boolean signedWithDebugKey(Context context, Class cls) 
{
    boolean result = false;
    try {
        PackageInfo pinfo = context.getPackageManager().getPackageInfo("your package name",PackageManager.GET_SIGNATURES);
        Signature sigs[] = pinfo.signatures;

        Log.d(TAG,sigs[0].toCharsString());

        if (DEBUGKEY.equals(sigs[0].toCharsString())) {
            result = true;
            Log.d(TAG,"package has been signed with the debug key");
        } else {
            Log.d(TAG,"package signed with a key other than the debug key");
        }

    } catch (android.content.pm.PackageManager.NameNotFoundException e) {
        return false;
    }

    return result;

} 

Run this code first time with debugkey, this will alway return false, but you'll get the encoded key in the Logcat. Copy that encoded key, and replace value " key " of DEBUGKEY, and it will work fine.