我不明白如何在 Unity 中使用滚动视图。这是我用来创建滚动视图的脚本:
#pragma strict
//not implemented yet
var selectObjectIcon : Texture2D;
var addEntityIcon : Texture2D;
var selectNextEntityIcon : Texture2D;
var createPathIcon : Texture2D;
var assignPathIcon : Texture2D;
var changeSpeedIcon : Texture2D;
var deleteObjectIcon : Texture2D;
var zoomIcon : Texture2D;
//not supposed to be implemented
var dragEntityIcon : Texture2D;
var assignPointIcon : Texture2D;
var haltIcon : Texture2D;
var warpIcon : Texture2D;
var glowStickIcon : Texture2D;
var selectWeaponIcon : Texture2D;
var reviveIcon : Texture2D;
var lineOfSightIcon : Texture2D;
var buttonDimensions : float;
var buttonStyle : GUIStyle;
private var scrollPosition : Vector2 = Vector2.zero;
function OnGUI () {
//scrollPosition = GUI.BeginScrollView(Rect(Screen.width-buttonDimensions, 0, buttonDimensions, Screen.height), scrollPosition, Rect(0, 0, buttonDimensions, buttonDimensions));
scrollPosition = GUI.BeginScrollView(Rect(Screen.width-buttonDimensions, 0, buttonDimensions, Screen.height), scrollPosition, Rect(0, 0, buttonDimensions, Screen.height));
GUILayout.BeginVertical();
if(GUILayout.Button(selectObjectIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(addEntityIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(selectNextEntityIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(createPathIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(assignPathIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(changeSpeedIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(deleteObjectIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(zoomIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(dragEntityIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(assignPointIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(haltIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(warpIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(glowStickIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(selectWeaponIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(reviveIcon, buttonStyle)){
Debug.Log("select object pressed");
}
if(GUILayout.Button(lineOfSightIcon, buttonStyle)){
Debug.Log("select object pressed");
}
GUILayout.EndVertical();
GUI.EndScrollView();
}
但这并没有按预期工作。按钮太靠右了,被切断了,我无法向上滚动它们。我也不明白 BeginScrollView 的第三个参数应该是什么。文档只是说“滚动视图内使用的矩形。”。我应该计算滚动视图窗口和内容窗口的值吗?我来自 Android GUI 开发,这似乎比必要的工作要多得多。