iOS 开发小坑[持续更新]

1. AVAudioPlayer
   使用AVAudioPlayer播放本地音乐的时候，是否没有声音没有什么反应？试一试把AVAudioPlayer作为全局变量 O(∩_∩)O哈哈~

   1. pod 报错：

/Users/xxx/.rvm/gems/ruby-2.4.0/gems/cocoapods-1.2.1/lib/cocoapods/command.rb:129:in `verify_minimum_git_version!': [!] You need at least git version 1.8.5 to use CocoaPods (Pod::Informative)    from /Users/xxx/.rvm/gems/ruby-2.4.0/gems/cocoapods-1.2.1/lib/cocoapods/command.rb:49:in `run'    from /Users/xxx/.rvm/gems/ruby-2.4.0/gems/cocoapods-1.2.1/bin/pod:55:in `<top (required)>'    from /Users/xxx/.rvm/gems/ruby-2.4.0/bin/pod:23:in `load'    from /Users/xxx/.rvm/gems/ruby-2.4.0/bin/pod:23:in `<main>'    from /Users/xxx/.rvm/gems/ruby-2.4.0/bin/ruby_executable_hooks:15:in `eval'    from /Users/xxx/.rvm/gems/ruby-2.4.0/bin/ruby_executable_hooks:15:in `<main>'

经查阅，1.有人说是xcode版本太低，需要升级xcode
2.可我是最新的版本，可能跟我之前有两个一毛一样的xcode(为了安装插件，修改其中一个xcode的签名， 虽然后来还是给卸掉了)有关系，用命令指定xcode路径 – sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer，就解决了。

1. This application’s application-identifier entitlement does not match that of the installed application. These values must match for an upgrade to be allowed.
   <— 卸掉真机上的程序重新运行>

4.TableViewHeaderView在iOS8.0下显示不全

解决方法：1.将tableView.headerView = HeaderView写在 viewWillAppear方法里
2.Nib文件里的自带的View删除 自己重新添加
【摘自http://www.jianshu.com/p/4e809c19a27e 亲测有效】