@SuppressLint("SetJavaScriptEnabled")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Force to login on every launch.
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.removeAllCookie();
button = (Button) findViewById(R.id.button);
webView = (WebView) findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
}