I have this weird issue, which I am not able to fix. This is my third attempt and I need some help. Basically I have a hover element which spawns when I hover over a gameobject. The height of the element is determined by the amount of text (TextMeshProUGUI).
The issue happens only when I hover first time, also not always (I have no clue how to reliably to reproduce it).
Here is what happens (sec 10~):
I have tried to add these everywhere and different combinations:
LayoutRebuilder.ForceRebuildLayoutImmediate(hoverElementRect); hoverElementRect.ForceUpdateRectTransforms(); Canvas.ForceUpdateCanvases(); txtMeshPro.ForceMeshUpdate(); They dont seem to help. I assume the problem is here:
float bgHeight = txtMeshPro.bounds.size.y + 25; The bounds.size.y is wrong the first time I hover, but I have no clue why.
Here is the whole code for spawning the GUI element:
public static void SpawnGeneralHoverElement(string descText, RectTransform hoverOverRect, float guiWidth) { Canvas hoverCanvas = instance.hoverElementGeneral.GetComponent<Canvas>(); EnableCanvas(hoverCanvas); TextMeshProUGUI txtMeshPro = hoverCanvas.GetComponentInChildren<TextMeshProUGUI>(); RectTransform hoverElementRect = hoverCanvas.GetComponentsInChildren<RectTransform>()[1]; float scale = hoverCanvas.GetComponent<RectTransform>().localScale.x; txtMeshPro.text = descText; // Need this to be dynamic, if I change hover element size, it will still work float hoverElementWidth = guiWidth; // Forces canvas update because of: stackoverflow.com/questions/55417905/why-is-textmeshpro-not-updating-textbounds-after-setting-text Canvas.ForceUpdateCanvases(); LayoutRebuilder.ForceRebuildLayoutImmediate(hoverElementRect); hoverElementRect.ForceUpdateRectTransforms(); txtMeshPro.ForceMeshUpdate(); // Need this because otherwise the element spawns too far away on smaller resultions float spawnOffset = (txtMeshPro.bounds.size.y * hoverCanvas.GetComponent<RectTransform>().localScale.x) + (Screen.height * 0.022f); float bgHeight = txtMeshPro.bounds.size.y + 25; hoverElementRect.position = new Vector3(hoverOverRect.position.x, hoverOverRect.position.y + spawnOffset, hoverOverRect.position.z); hoverElementRect.sizeDelta = new Vector2(guiWidth, bgHeight); Debug.Log(hoverElementRect.sizeDelta); LayoutRebuilder.ForceRebuildLayoutImmediate(hoverElementRect); hoverElementRect.ForceUpdateRectTransforms(); Canvas.ForceUpdateCanvases(); txtMeshPro.ForceMeshUpdate(); // Slide in form left to right if off bounds, need for traps for example float leftOffset = hoverElementRect.position.x - ((hoverElementRect.sizeDelta.x * scale) / 2); if (leftOffset < 0) { hoverElementRect.position = new Vector2(hoverElementRect.position.x + (leftOffset * -1) + 15, hoverElementRect.position.y); } // Slide in form right to left if off bounds, need for traps for example float rightOffset = Screen.width - (hoverElementRect.position.x + ((hoverElementRect.sizeDelta.x * scale) / 2)); //Debug.Log("Screen width: " + Screen.width + "\nrightOffset: " + rightOffset); if (rightOffset < 0) { hoverElementRect.position = new Vector2(hoverElementRect.position.x - (rightOffset * -1) - 15, hoverElementRect.position.y); } LayoutRebuilder.ForceRebuildLayoutImmediate(hoverElementRect); hoverElementRect.ForceUpdateRectTransforms(); Canvas.ForceUpdateCanvases(); txtMeshPro.ForceMeshUpdate(); } 