选择Picker项会在textfields中显示详细信息并保存

Question

我想在保存数据后，分别在文本字段中选择第一个选择器项目，在选择器中保留3个项目。我不知道如何编写代码来保存appdelegate类中的数据 -

(void)applicationDidEnterBackground:(UIApplication *)application{}

Answer 1

hi just check this link you will find the demo example their. [Click Here][1]


  [1]: http://www.roseindia.net/tutorial/iphone/examples/UIPickerView/UIPickerViewExample.html

and for the store data in appdelegate //
in .h
@interface Hiar_Style_NewAppDelegate :
{
NSString *strselect;
}
@property(nonatomic,retain)NSString *strselect;

in .m 
@synthesize strselect;

and whenever you want to use it just make delegate  of app deegate file like this 

Hiar_Style_NewAppDelegate *objappdel=(Hiar_Style_NewAppDelegate *)[[UIApplication sharedApplication]delegate];


and use that object like this

objappdel.strselect=@"";