UIButton of UIButtonTypeCustom with title does not show as clicked

按钮custom之后进行单击无法显示 title

http://stackoverflow.com/questions/9561427/uibutton-of-uibuttontypecustom-with-title-does-not-show-as-clicked

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原文地址：https://www.cnblogs.com/easonoutlook/p/2642849.html