Summary of iOS knowledge points

1

Nsarray *paths=nssearchpathfordirectoriesindomains (NSDocumentDirectory, Nsuserdomainmask, YES);

NSString *path=[paths objectatindex:0];

NSString *dest=[path stringbyappendingpathcomponent: @ ""];

NSLog (@ "%@", tmpcontent);

[Self loadhtmlstring:tmpcontent baseurl:[nsurl fileurlwithpath:dest];

Explanation of the above red font:

If you use stringbyappendingstring, you need to manually add the "/" symbol to the name, and stringByAppendingPathComponent does not, it will be added automatically

The difference between stringbyappendingpathcomponent and stringbyappendingstring:

NSString *imagepath = [Skinpath stringbyappendingstring:[nsstring stringwithformat:@ "/%@" , ImageName]]; // stringbyappendingstring is the meaning    of the suffix in Skinpath NSString *imagepath = [Skinpath stringbyappendingpathcomponent:imagename]; // stringByAppendingPathComponent is to add a "/" sign to the Skinpath after the imagename to make it the full path    NSLog (@ "imagepath:%@", ImagePath);

Print:

2013-11-27 14:44:30.052 willing[2757:70b] imagepath:/users/will/library/application Support/iPhone Simulator/7.0.3/ Applications/da5b603d-4d07-4425-b7cc-5d49232189be/willing.app/tabbar_home.png

Summary of iOS knowledge points