首先要在项目的info.plist里面添加,你要判断的APP里面添加URL Schemes!
//是否安装APP
func isInstallation(urlString:String?) -> Bool {
let url = URL(string: urlString!)
if url == nil {
return false
}
if UIApplication.shared.canOpenURL(url!) {
return true
}
return false
}
转载于:https://www.jianshu.com/p/52dec7333a96