안드로이드 android.os.NetworkOnMainThreadException 에러해결

안드로이드 킷캣에서.

import android.os.StrictMode;

if (android.os.Build.VERSION.SDK_INT > 9) {

    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();

    StrictMode.setThreadPolicy(policy);

}