https://cotin.tech/iOS/RunLoop/
https://blog.ibireme.com/2015/05/18/runloop/
解耦
Mach port用于进程间通信
优化相关
- UI主线程阻塞优化
UIImage *downloadImage = ....;
[imageview performSelector:@selector(setImage:) withObject:downloadImage afterDelay:0 inModes:@[NSDefaultRunLoopMode]];
//如此,特别是页面滚动的时候就不会造成页面卡顿了
-
crash后重启