iOS 之各种Crash

1.*** Terminating app due to uncaught exception 'CALayerInvalidGeometry', reason: 'CALayer position contains NaN: [nan 135]'

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2.-[_NSInlineData objectForKeyedSubscript:]: unrecognized selector sent to instance 0x13dabd600

原因：

By default AFNetworking will parse your JSON for you. AFHTTPResponseSerializer will just give you an NSData object as responseObject

解决：

remove:

manager.responseSerializer=[AFHTTPResponseSerializer serializer];

or

manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/plain", @"text/html",@"application/javascript",@"application/json", nil];

stackoverflow链接