如何解决eval的脚本陷入了React Native版本0.63.1iOS的困扰
“反应本地”:“ 0.63.1”
我在React Native iOS中使用eval运行了一些动态javascript。如果在eval中未包装相同的代码,则可以正常工作,但如果通过eval执行,则卡住了,我不得不点击手机屏幕或摇动/摇动手机以恢复脚本执行。卡住的地方归结为WebView.ios.js(“ react-native-webview”:“ ^ 10.8.3”)中的以下调用:
_this.injectJavaScript = function (data) {
UIManager.dispatchViewManagerCommand(_this.getWebViewHandle(),_this.getCommands().injectJavaScript,[data]);
console.log('injectJavaScript5 dispatched',data); // instrumented
}
该调度调用实际上已完成,因为我看到打印了“ injectJavaScript5调度”日志: [dispatchViewManagerCommand日志来自检测node_modules / react-native / React / Modules / RCTUIManager.m:RCTLogWarn(@“ dispatchViewManagerCommand start”);]
2020-09-07 11:24:34.463462-0400 myapp[810:118124] [javascript] 'injectJavaScript5 dispatched',----- !!! 9 seconds nothing happened until tap/rock/shake the phone
2020-09-07 11:24:43.378875-0400 myapp[810:120363] [native] dispatchViewManagerCommand start
2020-09-07 11:24:43.379158-0400 myapp[810:120363] [native] dispatchViewManagerCommand before block start
2020-09-07 11:24:43.379336-0400 myapp[810:120363] [native] dispatchViewManagerCommand managerCLass before
2020-09-07 11:24:43.379532-0400 myapp[810:120363] [native] dispatchViewManagerCommand managerCLass after
2020-09-07 11:24:43.379711-0400 myapp[810:120363] [native] dispatchViewManagerCommand managerCLass Number method before
2020-09-07 11:24:43.379876-0400 myapp[810:120363] [native] dispatchViewManagerCommand managerCLass Number method after
2020-09-07 11:24:43.380040-0400 myapp[810:120363] [native] dispatchViewManagerCommand managerCLass args before
2020-09-07 11:24:43.380209-0400 myapp[810:120363] [native] dispatchViewManagerCommand managerCLass args after
2020-09-07 11:24:43.380424-0400 myapp[810:120363] [native] dispatchViewManagerCommand end
2020-09-07 11:24:43.383301-0400 myapp[810:118124] [javascript] dispatchViewManagerCommand start
2020-09-07 11:24:43.386167-0400 myapp[810:117952] [native] injectJavasScript3 start:
---- why dispatchViewManagerCommand logs are in both [native] and [javascript]?
2020-09-07 11:24:34.335216-0400 myapp[810:118124] [javascript] dispatchViewManagerCommand before block start
2020-09-07 11:24:34.351613-0400 myapp[810:118124] [javascript] dispatchViewManagerCommand managerCLass before
2020-09-07 11:24:34.371906-0400 myapp[810:118124] [javascript] dispatchViewManagerCommand managerCLass after
2020-09-07 11:24:34.381274-0400 myapp[810:118124] [javascript] dispatchViewManagerCommand managerCLass Number method before
2020-09-07 11:24:34.390347-0400 myapp[810:118124] [javascript] dispatchViewManagerCommand managerCLass Number method after
2020-09-07 11:24:34.397696-0400 myapp[810:118124] [javascript] dispatchViewManagerCommand managerCLass args before
2020-09-07 11:24:34.405117-0400 myapp[810:118124] [javascript] dispatchViewManagerCommand managerCLass args after
2020-09-07 11:24:34.410255-0400 myapp[810:118124] [javascript] dispatchViewManagerCommand end
- react-native-webview和react-native-wkwebview-reborn都经过尝试,行为相同。
- 尝试使用钩子和类,行为相同。
- react native 0.57.2在类上正常工作(没有尝试钩子),即脚本执行没有卡住。
- 不是每个电话都被卡住,有些电话可以,其他电话被卡住,
- 曾经有一次我从WiFi切换到LTE,脚本顺利运行了几次,我认为问题出在WiFi。但是一旦我杀死并重新启动应用程序,就会返回相同的卡死行为。
- 我怀疑事件队列/循环在某种程度上受eval的影响,因为点击/摇动/摇动手机都会生成一些事件。但是在哪里检查?这是RN中的错误还是安全功能?
顺便说一句,myapp [810:118124]是什么意思?我知道myapp是应用名称,但810:118124吗?
谢谢。
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