swift内存泄露，与OC的混合

概述1. 避免内存泄露  1）由于闭包引用了self而可能导致的内存泄露，必须如下这样写:   weak var weakSelf = self;         nearByVM = BMKNearByViewModel(onResult: { (address) -> () in              weakSelf?.onGetAddress(address);          }); 

1. 避免内存泄露

1）由于闭包引用了self而可能导致的内存泄露，必须如下这样写:

weak var weakSelf = self;

nearByVM = BMKNearByviewmodel(onResult: { (address) -> () in

weakSelf?.onGetAddress(address);

});

或者这样

nearByVM = BMKNearByviewmodel(onResult: {[weak self] (address) -> () in

self?.onGetAddress(address);

});

2）使用delegate代理循环引用可能导致的内存泄露，必须如下这样写：

weakvar delegate : BMKMapVIEwDelegate?

2. swift的枚举与oc的枚举比较

枚举值后加value

如
switch error.errorCode.value{case EMErrorServerNotReachable.value:}

3.It's the same as the Objective-C API,but uses Swift's Syntax.

NSNotificationCenter.defaultCenter().addobserver(self,selector:"batterylevelChanged:",name:UIDevicebatterylevelDIDChangeNotification,object:nil)

If your observer does not inherit from an Objective-C object,you must prefix your method with@objc in order to use it as a selector.

@objcfuncbatterylevelChanged(notification:NSNotification){//dostuff}

总结

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