相信iOS開發(fā)者工作中經(jīng)常會寫到按鈕btn.layer.cornerRadius = 50;btn.clipsToBounds = YES;，面...
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iOS圓角觸發(fā)離屏渲染原理和時機 -
iOS離屏渲染以及切圓角所產(chǎn)生的離屏渲染1. 什么是離屏渲染 在正常情況下，經(jīng)過CPU的計算以及GPU的渲染之后，會將結(jié)果存放到幀緩存區(qū)，隨后視頻控制器會讀取幀緩存區(qū)的數(shù)據(jù)，經(jīng)過數(shù)模轉(zhuǎn)...
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