ios14 出现[__NSArrayM insertObject:atIndex:]: object cannot be nil奔溃

本文解决了一个在iOS 14系统中出现的特定崩溃问题。该问题是由于UIActivityIndicatorView(小菊花加载动画)未正确关闭导致的。文章提供了具体的崩溃错误信息,并给出了解决方案:在调用停止动画之前增加一个条件判断。

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil'


在这里插入图片描述

要是你在ios 14系统上调试突然出现这样的奔溃,很可能我们是遇到同样的问题了。
出现这个奔溃的原因是在使用小菊花(UIActivityIndicatorView )的时候没有正确关闭动画。
奔溃情况:

[activityIndicator stopAnimating];

修正后:

if ([activityIndicator isAnimating]) {
	 [activityIndicator stopAnimating];
}

需要判断当前的小菊花是否动画中,否则直接调用停止函数的话,就炸了。

Proxying [POST /elements] to [POST http://127.0.0.1:8100/session/3E06EDD0-507D-41DF-AC63-F4D949C01A92/elements] with body: {"using":"predicate string","value":"name == \"允许\""} [WD Proxy] Got response with status 200: {"value":[{"ELEMENT":"31000000-0000-0000-9E44-000000000000","element-6066-11e4-a52e-4f735466cecf":"31000000-0000-0000-9E44-000000000000"}],"sessionId":"3E06EDD0-507D-41DF-AC63-F4D949C01A92"} [W3C (c55273bd)] Responding to client with driver.findElements() result: [{"element-6066-11e4-a52e-4f735466cecf":"31000000-0000-0000-9E44-000000000000","ELEMENT":"31000000-0000-0000-9E44-000000000000"}] [HTTP] <-- POST /wd/hub/session/c55273bd-5ec0-4623-bd95-d26c53801e78/elements 200 336 ms - 139 [HTTP] [HTTP] --> POST /wd/hub/session/c55273bd-5ec0-4623-bd95-d26c53801e78/element/31000000-0000-0000-9E44-000000000000/click [HTTP] {"id":"31000000-0000-0000-9E44-000000000000"} [W3C (c55273bd)] Driver proxy active, passing request on via HTTP proxy [XCUITest] Executing command 'proxyReqRes' [WD Proxy] Matched '/wd/hub/session/c55273bd-5ec0-4623-bd95-d26c53801e78/element/31000000-0000-0000-9E44-000000000000/click' to command name 'click' [WD Proxy] Proxying [POST /wd/hub/session/c55273bd-5ec0-4623-bd95-d26c53801e78/element/31000000-0000-0000-9E44-000000000000/click] to [POST http://127.0.0.1:8100/session/3E06EDD0-507D-41DF-AC63-F4D949C01A92/element/31000000-0000-0000-9E44-000000000000/click] with body: {"id":"31000000-0000-0000-9E44-000000000000"} [WD Proxy] Got response with status 500: {"value":{"error":"unknown error","message":"*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil","traceback":"(\n\t0 CoreFoundation 0x000000019d0fadc0 5F4831C9-4949-34EA-B373-3F45C312B753 + 40384\n\t1 libobjc.A.dylib 0x000000019b5859a0 objc_exception_throw + 56\n\t2 CoreFoundation 0x000000019d287b44 5F4831C9-4949-34EA-B373-3F45C312B753 + 1665860\n\t3 CoreFoundation 0x000000019d284df4 5F4831C9-4949-34EA-B373-3F45C312B753 + 1654260\n\t4 CoreFoundation 0x000000019d104d04 5F4831C9-4949-34EA-B373-3F45C312B753 + 81156\n\t5 XCUIAutomation 0x0000000101352e70 __104-[XCAXClient_iOS interruptingUIElementsAffectingSnapshot:checkForHandledElement:containsHandledElement:]_block_invoke + 1008\n\t6 XCTestCore 0x0000000100d91a84 -[XCTContext _runActivityNamed:type:block:] + 244\n\t7 XCTestCore 0x0000000100d90cc8 +[XCTContext... [W3C] Matched W3C error code 'unknown error' to UnknownError [HTTP] <-- POST /wd/hub/session/c55273bd-5ec0-4623-bd95-d26c53801e78/element/31000000-0000-0000-9E44-000000000000/click 500 413 ms - 857 [HTTP]
10-12
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