ios UIImage

//
//  ViewController.h
//  05-图片浏览器
//
//  Created by zjj on 15/5/5.
//  Copyright (c) 2015年 zjj. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController

- (IBAction)setting;
- (IBAction)siderValueChange:(UISlider *)sender;
@property (weak, nonatomic) IBOutlet UIImageView *imageView;
@property (weak, nonatomic) IBOutlet UILabel *imageDesc;
@property (weak, nonatomic) IBOutlet UILabel *imageNo;
@property (weak, nonatomic) IBOutlet UIView *settingView;
- (IBAction)imageSizeChange:(UISlider *)sender;
- (IBAction)nightMode:(UISwitch *)sender;

@end

//
//  ViewController.m
//  05-图片浏览器
//
//  Created by zjj on 15/5/5.
//  Copyright (c) 2015年 zjj. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()
{
    NSArray *_addDess;// 成员变量，只要对象在 控制器在该变量就存在
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    // 通过plist文件获取字符串数组
    // 获得所有描述 （通过解析plist文件来创建数组对象，比如传入文件的全路径）
    // 如果要访问项目中资源包里面的所有资源应该使用mainBundle
    NSBundle *bundel = [NSBundle mainBundle];
    // 获得文件全路径
    NSString *path=[bundel pathForResource:@"descs" ofType:@"plist"];
    // 加载path对应文件来创建数组
     _addDess = [NSArray arrayWithContentsOfFile:path];
    //设置默认描述
    _imageDesc.text = _addDess[0];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
#pragma mark 点击设置
- (IBAction)setting {
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:1.0];
   CGPoint tempCenter = _settingView.center;

    if (_settingView.frame.origin.y == self.view.frame.size.height) {
        //    tempCenter.y -= _settingView.center.y;
    tempCenter.y -= _settingView.bounds.size.height;
    }else
    {
    tempCenter.y += _settingView.bounds.size.height;
    }
    _settingView.center = tempCenter;
    [UIView commitAnimations];
}
#pragma mark slider 滑动进度条显示图片
- (IBAction)siderValueChange:(UISlider *)sender {
    // 设置图片 %.f 不保留任何小数
    NSString *imgPath =[NSString stringWithFormat:@"%.f.png",sender.value] ;
    _imageView.image = [UIImage imageNamed:imgPath];
    // 设置序号
    _imageNo.text = [NSString stringWithFormat:@"%.f/16",sender.value+1];
    // 设置文字
//    NSArray *desc =
//    @[
//     @{@"depict":@"1还有比这更纠结的表情么"},
//     @{@"depict":@"2"},
//     @{@"depict":@"3hoho"},
//     @{@"depict":@"4wowo"},
//     @{@"depict":@"5还有比这更纠结的表情么"},
//     @{@"depict":@"6hahah"},
//     @{@"depict":@"7hoho"},
//     @{@"depict":@"8wowo"},
//     @{@"depict":@"9还有比这更纠结的表情么"},
//     @{@"depict":@"10hah10ah"},
//     @{@"depict":@"11hoho"},
//     @{@"depict":@"12wowo"},
//     @{@"depict":@"13hoho"},
//     @{@"depict":@"14hahah"},
//     @{@"depict":@"15hoho"},
//     @{@"depict":@"16wowo"}
//     ];

//     _imageDesc.text = desc[(int) sender.value][@"depict"] ;
// flot 强制转换成整数四舍五入bug修正
    _imageDesc.text =  _addDess[(int)(sender.value + 0.5)];
}
//滑动缩放
- (IBAction)imageSizeChange:(UISlider *)sender {
    _imageView.transform = CGAffineTransformMakeScale(sender.value, sender.value);
}
//夜间模式
- (IBAction)nightMode:(UISwitch *)sender {
    if (sender.on) {
        self.view.backgroundColor = [UIColor darkGrayColor];
    }
    else
    {
       self.view.backgroundColor = [UIColor whiteColor];
    }
}
@end