ios Presenting view controllers on detached view controllers is discouraged <BasicInfoVC: 0x7fb2dc24

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出现的原因：

　　在控制器A中添加控制器B--[A.view addSubView: B.view]

　　在控制器B中弹出新的控制器时报此waring

解决：

[A addChildViewController:B];

[B.parentViewController presentViewController:alertController animated:YES completion:nil];

详见：http://stackoverflow.com/questions/19890761/warning-presenting-view-controllers-on-detached-view-controllers-is-discourage

ios Presenting view controllers on detached view controllers is discouraged <BasicInfoVC: 0x7fb2dc24

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原文地址：http://www.cnblogs.com/zmtBK/p/5895656.html