<com.libraray.spinnerview.view.SpinnerView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:id="@+id/sv_lib_activity"/>
<Button
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:layout_marginLeft="20dp"
 android:layout_marginRight="20dp"
 android:text="登 录"
 android:textColor="#ffffff"
 android:background="@drawable/bt_bg_selector_main"
 android:id="@+id/bt_login_main"
 android:onClick="login"/>

 mSv_lib_activity = (SpinnerView) findViewById(R.id.sv_lib_activity);
 
 public void login(View v){
 //获取输入的数据
 final String loginAccount = mSv_lib_activity.getLoginAccount();
 if (!TextUtils.isEmpty(loginAccount)){
 //刷新界面
 mSv_lib_activity.setOnLoginChangeListener(new SpinnerView.OnLoginChangeListener() {
 @Override
 public String getLoginAccount() {
 return loginAccount;
 }
 });
 }else {
 Toast.makeText(getApplicationContext(), "账号不能为空", Toast.LENGTH_SHORT).show();
 }
}