Question

我的UIScrollView 自定义类存在问题，我用它来保存UIImageView。

我有另一个带有主UIScrollView 的ViewController，我添加了CustomScrollViewClass类的一些对象。我正在尝试在此自定义UIScrollvView内启用缩放，但没有成功！

一切似乎都很好但我无法从UIImageView缩放对象里面的CustomScrollViewClass！我已经尝试了很多东西，但现在没有任何工作。

//CustomScrollViewClass .h file

#import <UIKit/UIKit.h>

@interface CustomScrollViewClass : UIScrollView <UIScrollViewDelegate>
{
    BOOL iPad;
    BOOL iPhone5;

    NSString *imageName;

    UIImageView *imageView;
}

@property (nonatomic,strong) NSString *imageName;
@property (nonatomic,strong) UIImageView *imageView;

- (id)initWithImageAndFrame:(CGRect)frame imageName:(NSString*)image;

@end

这是 .m 文件

//CustomScrollViewClass .m file

#import "CustomScrollViewClass.h"

@implementation CustomScrollViewClass

@synthesize imageName,imageView;

- (id)initWithImageAndFrame:(CGRect)frame imageName:(NSString*)image
{
    self = [super initWithFrame:frame];

    if (self) {

        CGRect imagef;

        CGSize screenSize = [[UIScreen mainScreen] bounds].size;

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
            if (screenSize.height > 480.0f) {
                iPhone5 = YES;
                imagef = CGRectMake(0, 0, 320, 388);
            } else {
                iPhone5 = NO;
                imagef = CGRectMake(0, 0, 320, 420);
            }
            iPad = NO;
        } else {
            iPad = YES;
            iPhone5 = NO;
            imagef = CGRectMake(0, 0, 768, 824);
        }

        self.contentSize = imagef.size;
        self.maximumZoomScale = 2.0;
        self.minimumZoomScale = 1.0;
        self.zoomScale = 1.0;
        self.userInteractionEnabled = YES;
        self.multipleTouchEnabled = YES;

        imageName = image;

        UIImageView *imageAux = [[UIImageView alloc] initWithImage:[UIImage imageNamed:imageName]];
        imageAux.frame = imagef;
        imageAux.contentMode = UIViewContentModeScaleAspectFit;
        imageView = imageAux;
        [self addSubview:imageView];

        NSLog(@"%@",imageName);
    }
    return self;
}

-(UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
    NSLog(@"%@",@"viewForZoomingInScrollView");
    return self.imageView;
}

- (void)scrollViewDidZoom:(UIScrollView *)scrollView {
    NSLog(@"%@",@"scrollViewDidZoom");
}

@end

正如你所看到它应该适用于缩放，但事实并非如此！图像显得非常明显。我用来添加自定义视图的部分代码就是这一部分（在本例中我在主UIScrollView 中添加了5个自定义视图）：

//Method in MainView that I add objects from CustomScrollViewClass

-(void)PrepareScrollView
{
    CGSize scrollviewc;

    //Add Main ScrollView
    UIScrollView *scroll = [[UIScrollView alloc] init];

    if (iPad) {
        scrollviewf = CGRectMake(0, 200, 768, 824);
        scrollviewc = CGSizeMake((768 * 5), 824);
    }
    else {
        if (iPhone5){
            scrollviewf = CGRectMake(0, 180, 320, 388);
            scrollviewc = CGSizeMake((320 * 5), 388);
        } else {
            scrollviewf = CGRectMake(0, 60, 320, 420);
            scrollviewc = CGSizeMake((320 * 5), 420);
        }
    }

    scroll.frame = scrollviewf;
    scroll.contentSize = scrollviewc;
    scroll.pagingEnabled = YES;

    for (int i = 0; i < 5; i++) {
        CGRect imagef;

        if (iPad) {
            imagef = CGRectMake((i * 768), 0, 768, 824);
        } else {
            if (iPhone5){
                imagef = CGRectMake((i * 320), 0, 320, 388);
            } else {
                imagef = CGRectMake((i * 320), 0, 320, 420);
            }
        }

        //Add Custom ScrollView with UIImageView
        CustomScrollViewClass *AUX = [[ImageView alloc] initWithImageAndFrame:imagef imageName:[NSString stringWithFormat:@"%i%@",i+1,@"_pt.jpg"]];
        [scroll addSubview:AUX];

    }

    self.scrollView = scroll;
    [self.view addSubview:self.scrollView];
}

缩放不在自定义UIScrollView中工作

0 个答案: