Android- string not added after second

Question

I am trying to append few strings in android, I don't know why after second-string it does not work, the following is the code.

 String code_challenge = CryptoHash.getSHA256(code_verifier);
            Log.d(code_challenge,"Code challange");

            StringBuilder s = new StringBuilder(100);
            s.append(URL);
            s.append(code_verifier);
            s.append("&code_challenge=");
            s.append(code_challenge);
            s.append("&code_challenge_method=S256");


            String OAuthURL = URL + code_verifier + "&code_challenge=" + code_challenge + "&code_challenge_method=S256";
            Log.d(OAuthURL,"test");
            Log.d(s.toString(),"test2");

it is giving me the following result in log.

http://10.0.2.2:4431/OAuth/Login?response_type=code&state=Es0wjDVkhRwQ7kTM2TMPO6EJXoCgk

What's wrong with this code?

Following is the log

2020-03-17 17:08:33.600 15174-15196/com.example.oauthdemo I/ample.oauthdem: Background concurrent copying GC freed 4427(899KB) AllocSpace objects, 4(80KB) LOS objects, 49% free, 1639KB/3MB, paused 5.380ms total 57.233ms
2020-03-17 17:08:33.615 15174-15174/com.example.oauthdemo D/Es0wjDVkhRwQ7kTM2TMPO6EJXoCgkfxNeheKcftc: Code Verifier
2020-03-17 17:08:33.616 15174-15174/com.example.oauthdemo D/236531d42fc589f28f7024f250eb6164764ffd1714057eb95429539eab4d316b: Code challange

    [          1584445113.616 15174:15174 D/http://10.0.2.2:4431/OAuth/Login?response_type=code&state=Es0wjDVkhRwQ7kTM2TMPO6EJXoCgktest

    [          1584445113.616 15174:15174 D/http://10.0.2.2:4431/OAuth/Login?response_type=code&state=Es0wjDVkhRwQ7kTM2TMPO6EJXoCgktest2
2020-03-17 17:08:33.643 15174-15174/com.example.oauthdemo D/OpenGLRenderer: HWUI GL Pipeline

Please help!

The full string should be like this... 10.0.2.2:4431/OAuth/… — Rober
– Rober, Commented Mar 17, 2020 at 11:52
you are setting limit to StringBuilder when instantiating the instance, remove the 100 char limit. — darwin
– darwin, Commented Mar 17, 2020 at 12:20

Fahad Alotaibi · Accepted Answer · 2020-03-17 12:02:06Z

1

you should remove the limit or increase it

    StringBuilder s = new StringBuilder();

best wishes for you

edited Mar 17, 2020 at 12:02

answered Mar 17, 2020 at 11:57

Fahad Alotaibi

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1 Comment

Fahad Alotaibi Over a year ago

remove the length make it default constructor new StringBuilder()

gevondov · Accepted Answer · 2020-03-17 12:04:39Z

0

The problem is that you are passing arguments to Log.d method in incorrect order. Change to Log.d("test2", s.toString());, because tag you are passing has max symbols restriction

answered Mar 17, 2020 at 12:04

gevondov

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