终于效果图:

BeyondViewController.h

//

//  BeyondViewController.h

//  03_图片浏览

//

//  Created by beyond on 14-7-22.

//  Copyright (c) 2014年 com.beyond. All rights reserved.

//

#import <UIKit/UIKit.h>

@interface BeyondViewController : UIViewController

@property (weak, nonatomic) IBOutlet UILabel *pageNoLabel;

@property (weak, nonatomic) IBOutlet UIImageView *pictureView;

@property (weak, nonatomic) IBOutlet UILabel *descriptionLabel;

@property (weak, nonatomic) IBOutlet UIView *viewSetting;

- (IBAction)slideValueChanged:(UISlider *)sender;

- (IBAction)setting:(UIButton *)sender;

// switch 开关

- (IBAction)switchClick:(UISwitch *)sender;

// 图片大小 缩放

- (IBAction)sliderScaleValueChanged:(UISlider *)sender;

@end

BeyondViewController.m

//

//  BeyondViewController.m

//  03_图片浏览

//

//  Created by beyond on 14-7-22.

//  Copyright (c) 2014年 com.beyond. All rights reserved.

//

#import "BeyondViewController.h"

@interface BeyondViewController ()

{

    // 从mainBundle中载入plist,返回数组

    NSArray *_descArray;

}

@end

@implementation BeyondViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    // 从mainBundle中载入plist,返回数组,仅载入一次就可以

    // sg_bundle模板代码,1,获得.app基本的包;2,返回基本的包中某个文件的fullPath全路径

    NSBundle *mainBundle = [NSBundle mainBundle];

    NSString *fullPath = [mainBundle pathForResource:@"descs.plist" ofType:nil];

    // 成员变量记住,由于其它方法slideValueChanged中要用到

    _descArray = [NSArray arrayWithContentsOfFile:fullPath];

    // _descriptionLabel.text = _descArray[0];

}

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

    NSLog(@"%d",(int)sender.value);

    // 图片名 从0 ~ 15,相应的slide最小值0 最大值15

    int pageNo = (int)sender.value;

    // 1,控制图片显示

    NSString *imageName = [NSString stringWithFormat:@"%d.png",pageNo];

    _pictureView.image = [UIImage imageNamed:imageName];

    // 2,控制标题显示

    _pageNoLabel.text = [NSString stringWithFormat:@"%d/16",(pageNo+1)];

    // 3,控制描写叙述显示 plist在模拟器中的全path

    // /Users/beyond/Library/Developer/Xcode/DerivedData/03_图片浏览-cwowmkgqqqqmfcfxckpaqtzykyus/Build/Products/Debug-iphonesimulator/03_图片浏览.app/descs.plist

    // /Users/beyond/Library/Application Support/iPhone Simulator/7.1/Applications/02291F09-5446-40E2-82AE-18B6D039D88A/03_图片浏览.app/descs.plist

    // NSString *descPlistFullPath = [[NSBundle mainBundle] pathForResource:@"descs.plist" ofType:nil];

    // _descriptionLabel.text = [_descArray objectAtIndex:pageNo];

    _descriptionLabel.text = _descArray[pageNo];

}

#pragma mark - 设置:1,夜间模式; 2,图片缩放

- (IBAction)setting:(UIButton *)sender {

    // UIView的类方法 实现动画效果(開始动画)

    [UIView beginAnimations:nil context:nil];

    // 默认动画持续时间是 0.2

    [UIView setAnimationDuration:1];

    int winHeight = self.view.bounds.size.height;

    CGFloat targetY = _viewSetting.frame.origin.y==winHeight?(winHeight-self.viewSetting.frame.size.height):winHeight;

    // 下面三步为OC标准代码,由于OC中不同意直接修该对象中结构体属性的成员的值,要通过中间的暂时结构体变量

    CGRect frame = self.viewSetting.frame;

    frame.origin.y = targetY;

    self.viewSetting.frame=frame;

    // UIView的类方法 实现动画效果(结束动画)

    [UIView commitAnimations];

}

- (IBAction)switchClick:(UISwitch *)sender {

    if (sender.isOn) {

        self.view.backgroundColor = [UIColor darkGrayColor];

    } else {

        self.view.backgroundColor = [UIColor whiteColor];

    }

}

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

    // UIView的类方法 实现动画效果(開始动画)

    [UIView beginAnimations:nil context:nil];

    // 默认动画持续时间是 0.2

    [UIView setAnimationDuration:1];

    self.pictureView.transform = CGAffineTransformMakeScale(sender.value, sender.value);

    // UIView的类方法 实现动画效果(结束动画)

    [UIView commitAnimations];

}

@end

效果图

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