@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    //建议在页面加载时进行获取预取号
    preLogin();
}

private void preLogin() {
    //判断SDK初始化状态
    if (JVerificationInterface.isInitSuccess()){
        JVerificationInterface.preLogin(this, 5000, new PreLoginListener() {
            @Override
            public void onResult(final int code, final String content, JSONObject operatorReturn) {
                //回调响应结果
            }
        });
    }
}

        

          
private void  loginAuth() {
        //建议拉起授权页面之前设置自定义UI
        setUIConfig();
        //以下为拉起授权页面部分
        ..............
}

private void setUIConfig() {
        //UIConfig案例，具体参考API文档JVerifyUIConfig 一键登录-配置元素说明
        JVerifyUIConfig uiConfig = new JVerifyUIConfig.Builder().setAuthBGImgPath("main_bg")
                    .setNavColor(0xff0086d0)
                    .setNavText("登录")
                    .setNavTextColor(0xffffffff)
                    .setNavReturnImgPath("umcsdk_return_bg")
                    .setLogoWidth(70)
                    .setLogoHeight(70)
                    .setLogoHidden(false)
                    .setNumberColor(0xff333333)
                    .setLogBtnText("本机号码一键登录")
                    .setLogBtnTextColor(0xffffffff)
                    .setLogBtnImgPath("umcsdk_login_btn_bg")
                    .setPrivacyNameAndUrlBeanList(List<PrivacyBean>)
                    .setPrivacyNameAndUrlBeanList(List<PrivacyBean>)
                    .setUncheckedImgPath("umcsdk_uncheck_image")
                    .setCheckedImgPath("umcsdk_check_image")
                    .setSloganTextColor(0xff999999)
                    .setLogoOffsetY(50)
                    .setLogoImgPath("logo_cm")
                    .setNumFieldOffsetY(170)
                    .setSloganOffsetY(230)
                    .setLogBtnOffsetY(254)
                    .setNumberSize(18)
                    .setPrivacyState(false)
                    .setNavTransparent(false)
                    .addCustomView(mBtn, true, new JVerifyUIClickCallback() {
                        @Override
                        public void onClicked(Context context, View view) {Toast.makeText(context,"动态注册的其他按钮",Toast.LENGTH_SHORT).show();}
                    }).addCustomView(mBtn2, false, new JVerifyUIClickCallback() {
                        @Override
                        public void onClicked(Context context, View view) {Toast.makeText(context,"动态注册的其他按钮 222",Toast.LENGTH_SHORT).show();}
                    }).addNavControlView(navBtn, new JVerifyUIClickCallback() {
                        @Override
                        public void onClicked(Context context, View view) {Toast.makeText(context,"导航栏按钮点击",Toast.LENGTH_SHORT).show();}
                    }).setPrivacyOffsetY(30).build();

        //设置自定义页面UI
        JVerificationInterface.setCustomUIWithConfig(uiConfig);
}


        

          
private void  loginAuth() {
    //设置自定义UI
    setUIConfig();
    
    //LoginSettings为登录配置
    LoginSettings settings = new LoginSettings();
    settings.setAutoFinish(true);// 设置登录完成后是否自动关闭授权页
    settings.setTimeout(15 * 1000);// 设置超时时间，单位毫秒。 合法范围（0，30000], 范围以外默认设置为 10000
    settings.setAuthPageEventListener(new AuthPageEventListener() {
        @Override
        public void onEvent(int cmd, String msg) {//do something...}
    });// 设置授权页事件监听
    
    //拉起授权页面
    JVerificationInterface.loginAuth(this, settings, new VerifyListener() {
         @Override
              public void onResult(int code, String content, String operator, JSONObject operatorReturn) {
                  //回调授权页面响应结果
                  //得到loginToken以完成登录

              }
          });
}

private void setUIConfig() {
        ......
}