LoginActivity.java

private void initUI() {
    AGApplication.the().getmAgoraAPI().channelJoin(channelName);
}

public void onClickLogin(View v) {

    if (enableLoginBtnClick) {
        account = textAccountName.getText().toString();

        if (account == null || account.equals("")) {
            ToastUtils.show(new WeakReference<Context>(LoginActivity.this), getString(R.string.str_msg_not_empty));

        } else if (account.length() >= Constant.MAX_INPUT_NAME_LENGTH) {
            ToastUtils.show(new WeakReference<Context>(LoginActivity.this), getString(R.string.str_msg_not_128));

        } else if (account.contains(" ")) {
            ToastUtils.show(new WeakReference<Context>(LoginActivity.this), getString(R.string.str_msg_not_contains_space));

        } else {
            enableLoginBtnClick = false;

            AGApplication.the().getmAgoraAPI().login2(appId, account, "_no_need_token", 0, "", 5, 1);
        }
    }

}