Question

试图连续3天解决这个问题，但仍然没有。所以我想使用pop菜单中的滑块来控制uiview的alpha，该滑块从rect按钮出现（按下按钮）所以我已经做了，

mainview .h文件：

@class popView;
@interface brightscreenViewController : UIViewController <UIPopoverControllerDelegate>
{    
    IBOutlet UIView *darkView;
    IBOutlet UIButton *brightbtn;
    UIPopoverController *popvover;
    popView *pop;   
}

@property(nonatomic, retain) UIPopoverController *popover;
@property (nonatomic, retain) UIView *darkView;
@property (nonatomic, retain) popView *pop;

- (IBAction)showPop:(id)sender;

mainview .m文件：

#import "brightscreenViewController.h"
#import "popView.h"

@class popView;
@interface brightscreenViewController ()

@end

@implementation brightscreenViewController
@synthesize popover;
@synthesize darkView;
@synthesize pop;

-(IBAction)showPop:(id)sender
{    
    popView *brightpop = [[popView alloc] init];
    popover = [[UIPopoverController alloc] initWithContentViewController:brightpop];
    [popover setDelegate:self];
    [popover presentPopoverFromRect:[brightbtn bounds] inView:brightbtn permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
    [popover setPopoverContentSize:CGSizeMake(229, 57)];
}

和第二个视图.h，其中包含uipopview和滑块：

@class brightscreenViewController;

@interface popView : UIViewController
{

    brightscreenViewController *brightscreen;
    IBOutlet UISlider *slider;   
}

@property (nonatomic, retain)UISlider *slider;
@property (nonatomic, retain) brightscreenViewController *brightscreen;

-(IBAction)setBrightness:(id)sender;

secondview .m文件：

#import "popView.h"
#import "brightscreenViewController.h"


@interface popView ()

@end

@implementation popView
@synthesize slider;
@synthesize brightscreen;

-(IBAction)setBrightness:(id)sender
{   
    brightscreen.darkView.alpha = slider.value;
}

pop over工作得很好但不是滑块。它只是没有回应。我已经尝试使用相同的代码将滑块直接放在主视图上，它工作得很好，但当我把它与uipopover一起工作时不工作我真的希望有人可以帮助我。

Answer 1

怎么样：

popView *brightpop = [[popView alloc] init];

// New line
brightpop.brightscreen = self;

popover = [[UIPopoverController alloc] initWithContentViewController:brightpop];

如何控制另一个uiviewcontroller的插座

1 个答案: