删除所有CALayer的子图层 [英] Removing all CALayer's sublayers

问题描述

我无法删除图层的所有子图层。我目前手动这样做，但这带来不必要的杂乱。

I have trouble with deleting all of layer's sublayers. I currently do this manually, but that brings unnecessary clutter. I found many topics about this in google, but no answer.

我尝试做这样的事情：

for(CALayer *layer in rootLayer.sublayers)
{
    [layer removeFromSublayer];
}

但不起作用。

，我试图克隆rootLayer.sublayers到单独的NSArray，但结果是一样的。

Also, i tried to clone rootLayer.sublayers into separate NSArray, but result was the same.

任何想法？

编辑：

我以为它现在工作，但我错了。它适用于CALayers，但它不工作与CATextLayers。任何想法？

I thought it works now, but I was wrong. It works good with CALayers, but it doesn't work with CATextLayers. Any ideas?

推荐答案

从图层中删除所有子图层的最简单的方法是将sublayer属性设置为nil：

The simplest way to remove all sublayers from a layer is to set the sublayer property to nil:

rootLayer.sublayers = nil;

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