Unity 3D model operation and UI conflict Scrollview

（ The second solution has been updated , The second scheme is the best ）

Old title ：Scrollview And drag and drop the 3D scene model slide Roller Conflict

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Problem description ： The following figure shows my screen interface layout , Sliding ScrollView When the component , It will be linked to the operation function of the model at the same time .

Solution ： In the model operation script , Add a judgment to the corresponding operation method ：

 Mouse version ：if(Input.mousePosition.x < Screen.width * 0.75f){...}
 Touch screen version ：if(gesture.position.x < Screen.width * 0.75f){...}

Plan ideas ： Partition the operation according to the screen , That is, the 3D scene area on the left has an effect on the operation of the model , So add judgment and let it in 75% Zone operation is valid （ The lower left corner is the screen resolution 0 spot ）, The specific percentage is divided according to the interface layout area , So as to shield the influence of the operation on the right side on the 3D scene .

summary ： This solution has a limited scope , If ScrollView Components are used as the UI, This method is not applicable , Perhaps we can use ray judgment to solve , And other methods to be explored .

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Solution 2 ：

if (Input.GetMouseButton(2) && !EventSystem.current.IsPointerOverGameObject())
   {
       // function 
   }

// perhaps =====
if (Input.GetMouseButton(2))
   {
       if(EventSystem.current.IsPointerOverGameObject()) 
          return; 

       // function 
   }

EventSystem.current.IsPointerOverGameObject(), yes EventSystem Methods provided , Used to determine whether the cursor is in UI Upper , I often do to solve the problem of ray penetration UI The problem of , Ah , I didn't think of this method before , Wrote the first solution , Now I feel a little ridiculous , But each has its uses , Let it be ！