The implementation of the simple picture browser in the UI Foundation article-ios

1 //2 3 //HYVIEWCONTROLLER.M4 5 //01-Image Browser Review6 7 //8 9 //Created by Apple on 15-4-10.Ten  One //Copyright (c) 2015 Apple. All rights reserved. A  - // -  the   -  - #import "HYViewController.h" -  +   -  + @interfaceHyviewcontroller () A  at-(ibaction) last; -  --(ibaction) next; -  - /** Display the number of pictures*/ -  in@property (Weak, nonatomic) Iboutlet UILabel *numlable; -  to /** Show Pictures*/ +  -@property (Weak, nonatomic) Iboutlet Uiimageview *MyImage; the  * /** Display the description of the picture*/ $ Panax Notoginseng@property (Weak, nonatomic) Iboutlet UILabel *desclable; -  the /** Show the status of the button*/ +  A@property (Weak, nonatomic) Iboutlet UIButton *lastbtn; the  +@property (Weak, nonatomic) Iboutlet UIButton *nextbtn; -  $   $  - /** Collection of picture data*/ -  the@property (nonatomic,strong) Nsarray *Arrayimage; - Wuyi /** Record the index of the picture display*/ the  -@property (nonatomic,assign)intindex; Wu  - @end About  $   -  - @implementationHyviewcontroller -  A /** Lazy loading of data*/ +  the-(Nsarray *) Arrayimage -  $ { the  the     if(_arrayimage==Nil) the  the     { -  in         //First time loading the  the         //Initializing Data About  the         //1. Use Mainboundle to access any resource on the mobile resource bundle the  theNSBundle *bdle=[NSBundle Mainbundle]; +  -         //2. Get the full path the BayiNSString *path= [Bdle pathforresource:@"Changedata"OfType:@"plist"]; the  the         //3. Read resources under the full path -  -_arrayimage=[Nsarray Arraywithcontentsoffile:path]; the  the     } the  the      -  the     return_arrayimage; the  the }94  the   the  the //This method is called when the controller's view initialization is complete98  About- (void) Viewdidload - 101 {102 103 [Super Viewdidload];104  the [self changedata];106 107 108 }109  the  111  the /** Changes in data*/113  the-(void) Changedata the  the {117 118     //1. Change the serial number119  -Self.numlable.text=[nsstring stringWithFormat:@"%d/%d", self.index+1, Self.arrayimage.count];121 122     //2. Remove the array of values in the dictionary array name [index subscript]123 124Nsdictionary *dectimage=Self.arrayimage[self.index]; the 126     //3. Change the picture127  -Self.myimage.image=[uiimage imagenamed:dectimage[@"icon"]];129  the     //4. Change the description131  theself.desclable.text=dectimage[@"desc"];133 134     //5. Change the state of the button135 136Self.lastbtn.enabled= (self.index!=0);137 138Self.nextbtn.enabled= (self.index!=self.arrayimage.count-1);139  $ }141 142  143 144 /** Show Previous picture*/145 146-(ibaction) last147 148 {149  Maxself.index--;151  the [self changedata];153 154     155 156 } 157 158 /** Show Next picture*/159  the-(ibaction) Next161 162 {163 164self.index++;165 166 [self changedata];167 168 }169  the @end171 172 173 174 //Personal Summary: Deferred load design, use of nsboundle, use of plist files

The implementation of the simple picture browser in the UI Foundation article-ios