iOS Development Package Custom structure object, Cgrect,cgsize common structure basic use

How can I use OC to encapsulate a struct into nsvalue in iOS?

Here's how:

typedef  struct{  //Custom a struct    int age;    int number;} Student; Nsvalue *stu=[nsvalue valuewithbytes:&stu objctype: @encode (Student)];//encapsulate the structure as an object Student  value2;// Define a struct variable to accept the structure obtained from Nsvalue [Stu getvalue:&value2];//the structure in the Stu object to take out int a=value2.age;  Get the fields in the structure other, the system comes with Cgpoint P=[value  Cgpointvalue];

The system comes with the method of creating nsvalue and acquiring CG structure body values

    Nsvalue *v=[nsvalue valuewithcgrect:cgrectmake (0, 0, 0, 0)];    CGRect rect=[v Cgrectvalue];    Nsvalue *v2=[nsvalue Valuewithcgsize:cgsizezero];    Cgsize size=[v2 Cgsizevalue];    Nsvalue *v3=[nsvalue valuewithcgpoint:cgpointmake (0, 0)];    Cgpoint P=[v3 Cgpointvalue];

Original address:http://blog.csdn.net/yangbingbinga/article/details/43114469

iOS Development Package Custom structure object, Cgrect,cgsize common structure basic use