WebMar 7, 2011 · The shouldRelayout method is called when a new instance of the class is provided, to check if the new instance actually represents different information. The most efficient way to trigger a relayout is to supply a relayout argument to the constructor of the SingleChildLayoutDelegate. WebMar 7, 2010 · Place the children as close to the middle of the main axis as possible. spaceBetween → const MainAxisAlignment. Place the free space evenly between the children. spaceAround → const MainAxisAlignment. Place the free space evenly between the children as well as half of that space before and after the first and last child.
Flutter-Texture外接纹理上手 实现视频播放 - 掘金
WebWe found that the TextureLayer.paint will be called even if its content is not updated. For example, we use Texture to show 20 static images and 1 animated image. When the … WebMar 7, 2010 · During painting, the render tree generates a tree of composited layers that are uploaded into the engine and displayed by the compositor. This class is the base class … gak fußball
MainAxisSize enum - rendering library - Dart API
WebMar 7, 2010 · Values idle → const ScrollDirection. No scrolling is underway. forward → const ScrollDirection. Scrolling is happening in the positive scroll offset direction. For example, for the GrowthDirection.forward part of a vertical AxisDirection.down list, this means the content is moving up, exposing lower content.. reverse → const … WebMar 7, 2010 · An interface for providing custom clips. This class is used by a number of clip widgets (e.g., ClipRect and ClipPath ). The getClip method is called whenever the custom clip needs to be updated. The shouldReclip method is called when a new instance of the class is provided, to check if the new instance actually represents different information. auktionshaus henrys katalog