@implementation BEViewController

 

NSArray *_allDescs;

 

- (void)viewDidLoad

{

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

//定义图片描述供给其他方法使用

NSBundle *bundel = [NSBundle mainBundle];

NSString *path   = [bundel pathForResource:@"imageDesc" ofType:@"plist"];

_allDescs = [NSArray arrayWithContentsOfFile:path];

_imageDesc.text = _allDescs[0];

}

 

- (void)didReceiveMemoryWarning

{

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

 

- (IBAction)onChange:(UISlider *)sender {

//%.f 意思为只取得整数部分

NSString *imageName = [NSString stringWithFormat:@"%.f.png",sender.value];

//1. 改变图片的image

_images.image = [UIImage imageNamed:imageName];

//2. 改变图片的计数器

_imageNo.text = [NSString stringWithFormat:@"%.f/16",sender.value+1];

//3. 改变图片的描述

int nums = (int)(sender.value+0.5);

_imageDesc.text = _allDescs[nums];

}

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