数组与字典的应用

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一组数据有图片及文字描述

//  设置数组属性

@interface

@property (nonatomic, strong) NSArray *imageData;

@property (nonatomic, assign) int index;

@end

@implementation     //   创建包含 图片名称及描述 的字典    NSMutableDictionary *imageWithDesc1 = [NSMutableDictionary dictionary];

    imageWithDesc1[@"icon"] = @"图片名称1";    imageWithDesc1[@"desc"] = @"图片描述1";    NSMutableDictionary *imageWithDesc2 = [NSMutableDictionary dictionary];    imageWithDesc2[@"icon"] = @"图片名称2";    imageWithDesc2[@"desc"] = @"图片描述2";    NSMutableDictionary *imageWithDesc3 = [NSMutableDictionary dictionary];    imageWithDesc3[@"icon"] = @"图片名称3";    imageWithDesc3[@"desc"] = @"图片描述3";

<pre name="code" class="objc"><span style="white-space:pre"></span>

    //  创建数组

    self.imageData = @[imageWithDesc1, imageWithDesc2, imageWithDesc3];

   <pre name="code" class="objc">    //  提出数组里index对应的字典数据

    NSArray *imageDict = imageData[self.index];

    <pre name="code" class="objc">    //  设置图片名称

    NSString *iconName = imageDict[@"icon"];

    //  设置图片描述

    NSString *iconDesc = imageDict[@"desc"];

</pre><pre name="code" class="objc"><span style="font-family: Arial, Helvetica, sans-serif;">@end</span>

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