就是指在你的组件将要移除的时候做一些事情。你可以在compoWillUnmount里面做你想做的事,比如你可以cons...
Invoked immediately before a component is unmounted from the DOM 这个 hook 是你实现这个方法,等 re...
- node_modules/fbjs/lib/warning.js:33:20 in printWarning - node_modules/fbjs/lib/warning.js:57:25 in warning - node_modules/react-native/Libraries/Renderer/ReactNativeRenderer-dev.js:12196:6 in warnAboutUpdateOnUnmounted - node_modules/react-native/Libraries/Renderer/ReactNativeRenderer-dev.js...
对,就是类似于调用remove 隐藏,或不可见是不会触发的 .
再此指出:componentWillUnMount ->componentWillUnmount 后面那个是正确的,M应该小写。
React calls thecomponentWillUnmount() lifecycle hook so the timer is stopped.就豁然开朗了。。。
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