方法中此句代码黄色提醒
AppDelegate *appDelegate = [[UIApplication sharedApplication]delegate];
需要将id类型强转一下,使得类型一致:
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];
AppDelegate *appDelegate = [[UIApplication sharedApplication]delegate];
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];
本文标题:Assigning to 'AppDelegate *' fro
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