Create signature from package manager.

MemberActivity.java

try {
            String appVersion = getPackageManager().getPackageInfo(getPackageName(), 0).versionName;
            contentAdapter.addItem(new ItemObject("版本 " + appVersion, null));


            Signature[] sigs = getPackageManager().getPackageInfo(getPackageName(), PackageManager.GET_SIGNATURES).signatures;

            StringBuffer signBffer = new StringBuffer();
            for (Signature sign: sigs) {
                signBffer.append(sign.toCharsString());
            }
            Log.i(Itaoway.TAG, "Sign: " + signBffer.toString());

        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }