Question

我正在尝试通过ScrollView添加图像。我在plist文件中有x和y点，它们由枚举调用。

enum {
    kLogoImage = 1,
    kNewLogoImage,
};


@implementation

- (void) _setupStaticViews
{
    UIButton *image = [UIButton buttonWithType:UIButtonTypeCustom];
    [image setBackgroundImage:[UIImage imageNamed:@"logo.png"] forState:UIControlStateNormal];
    [image addTarget:self action:@selector(_addContactButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
    image.frame = CGRectMake(0.0 ,0.0, 150.0, 150.0);
    image.tag = kLogoImage;
    [_mapImageView addSubview:image];
    _staticViews = @[image]; 


    UIButton *image2 = [UIButton buttonWithType:UIButtonTypeCustom];
    [image2 setBackgroundImage:[UIImage imageNamed:@"Time Bakground.png"] forState:UIControlStateNormal];
    [image2 addTarget:self action:@selector(_addContactButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
    image2.frame = CGRectMake(0.0 ,0.0, 250.0, 150.0);
    image2.tag = kNewLogoImage;
    [_mapImageView addSubview:image2];
    _staticViews = @[image2];


    for ( UIView *view in _staticViews ) {
        CGPoint point = [self _basePositionForView:view];
        CGRect frame = view.frame;
        frame.origin = point;
        view.frame = frame;

    }
}

如果我只显示图像，它可以正常工作。但我需要添加多个并添加第二个导致第一个位于xy点0,0，而Image2不可见。我该如何添加另一张图片？

- (CGPoint) _basePositionForView:(UIView *)view {
    NSString *key = [NSString stringWithFormat:@"%d", view.tag];
    NSString *stringValue = [_coordinates objectForKey:key];
    NSArray *values = [stringValue componentsSeparatedByString:@":"];

    if ( [values count] < 2 ) return CGPointZero;

    CGPoint result = CGPointMake([[values objectAtIndex:0] floatValue], [[values objectAtIndex:1] floatValue]);
    return result;
}

Answer 1

我注意到你先做

_staticViews = @[image];

以后

_staticViews = @[image2];

你不是想要拥有

_staticViews = @[image, image2];

Answer 2

您应该在框架中相应地迭代并更改x：

for ( int iterator=0; iterator< [[_staticViews subviews] count]; iterator++){
...     
current_image.frame = CGRectMake(YOUR_IMG_WIDTH * iterator ,0.0, YOUR_IMG_WIDTH, 150.0);
...}

子视图上的多个图像未加载

2 个答案: