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ipadまたはiphoneアプリで半透明のヘルプ画面を作成する方法に誰かが光を当てることができるかどうか疑問に思っていますか？Googleアプリに似たもの。

splitViewControllerがあり、splitViewControllerの上にシースルーの黒いオーバーレイをオーバーレイしたいのですが、splitViewControllerでクリックできる各アイテムに関するヘルプ情報を表示できます。

http://cocoawithlove.com/2009/04/showing-message-over-iphone-keyboard.htmlに従ってオーバーレイを取得しましたが、クリック可能なUIViewを追加しています（たとえば、オーバーレイを閉じるための閉じるボタン）。問題は、touchesEnded：withEventを設定したときに、クリックをメインのLoadingViewからcloseButtonに変換して、実際にクリックされたものを確認できないように見えることです。

コードの最後で終了したタッチを参照してください

================================================== ==============

#import "HelpView.h"
#import <QuartzCore/QuartzCore.h>

//

CGPathRef NewPathWithRoundRect(CGRect rect, CGFloat cornerRadius)
{
//
// Create the boundary path
//
CGMutablePathRef path = CGPathCreateMutable();
CGPathMoveToPoint(path, NULL,
    rect.origin.x,
    rect.origin.y + rect.size.height - cornerRadius);

// Top left corner
CGPathAddArcToPoint(path, NULL,
    rect.origin.x,
    rect.origin.y,
    rect.origin.x + rect.size.width,
    rect.origin.y,
    cornerRadius);

// Top right corner
CGPathAddArcToPoint(path, NULL,
    rect.origin.x + rect.size.width,
    rect.origin.y,
    rect.origin.x + rect.size.width,
    rect.origin.y + rect.size.height,
    cornerRadius);

// Bottom right corner
CGPathAddArcToPoint(path, NULL,
    rect.origin.x + rect.size.width,
    rect.origin.y + rect.size.height,
    rect.origin.x,
    rect.origin.y + rect.size.height,
    cornerRadius);

// Bottom left corner
CGPathAddArcToPoint(path, NULL,
    rect.origin.x,
    rect.origin.y + rect.size.height,
    rect.origin.x,
    rect.origin.y,
    cornerRadius);

// Close the path at the rounded rect
CGPathCloseSubpath(path);

return path;
}

@implementation HelpView

@synthesize closeButton = _closeButton;

- (id)loadingViewInView:(UIView *)aSuperview
{


HelpView *loadingView =
    [[HelpView alloc] initWithFrame:[aSuperview bounds]];
if (!loadingView)
{
    return nil;
}

loadingView.opaque = NO;
loadingView.autoresizingMask =
    UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
[aSuperview addSubview:loadingView];

const CGFloat DEFAULT_LABEL_WIDTH = 100.0;
const CGFloat DEFAULT_LABEL_HEIGHT = 40.0;
CGRect labelFrame = CGRectMake(0, 0, DEFAULT_LABEL_WIDTH, DEFAULT_LABEL_HEIGHT);
UILabel *loadingLabel = [[UILabel alloc] initWithFrame:labelFrame];
loadingLabel.text = NSLocalizedString(@"Close", nil);
loadingLabel.textColor = [UIColor whiteColor];
loadingLabel.backgroundColor = [UIColor clearColor];
loadingLabel.textAlignment = UITextAlignmentCenter;
loadingLabel.font = [UIFont boldSystemFontOfSize:[UIFont labelFontSize]];
loadingLabel.autoresizingMask =
    UIViewAutoresizingFlexibleLeftMargin |
    UIViewAutoresizingFlexibleRightMargin |
    UIViewAutoresizingFlexibleTopMargin |
    UIViewAutoresizingFlexibleBottomMargin;


// Background for Close button
CALayer *closeButtonBackground = [CALayer layer];
closeButtonBackground.opacity = 0.3;
closeButtonBackground.borderColor = [UIColor whiteColor].CGColor;
closeButtonBackground.borderWidth = 2.0;
closeButtonBackground.cornerRadius = 5.0;
closeButtonBackground.backgroundColor = [UIColor blackColor].CGColor;

// Finish setting up frame for Close button
labelFrame.origin.x = 0;
labelFrame.origin.y = 0;
loadingLabel.frame = labelFrame;
closeButtonBackground.frame = labelFrame;



CGRect viewRect = CGRectMake(loadingView.frame.size.width -150   ,loadingView.frame.size.height - 85,100,40);
self.closeButton = [[UIView alloc] initWithFrame:viewRect];
self.closeButton.userInteractionEnabled = YES;
self.userInteractionEnabled = NO;
[loadingView addSubview:self.closeButton];
[self.closeButton.layer addSublayer:closeButtonBackground]; 
[self.closeButton addSubview:loadingLabel];


// Set up the fade-in animation
CATransition *animation = [CATransition animation];
[animation setType:kCATransitionFade];
[[aSuperview layer] addAnimation:animation forKey:@"layerAnimation"];

//[loadingView createGestureRecognizer];

return loadingView;
}




- (void)removeView
{
UIView *aSuperview = [self superview];
[super removeFromSuperview];

// Set up the animation
CATransition *animation = [CATransition animation];
[animation setType:kCATransitionFade];

[[aSuperview layer] addAnimation:animation forKey:@"layerAnimation"];
}


- (void)drawRect:(CGRect)rect
{
rect.size.height -= 1;
rect.size.width -= 1;

const CGFloat RECT_PADDING = 0.0;
rect = CGRectInset(rect, RECT_PADDING, RECT_PADDING);

const CGFloat ROUND_RECT_CORNER_RADIUS = 0.0;
CGPathRef roundRectPath = NewPathWithRoundRect(rect, ROUND_RECT_CORNER_RADIUS);

CGContextRef context = UIGraphicsGetCurrentContext();

const CGFloat BACKGROUND_OPACITY = 0.85;
CGContextSetRGBFillColor(context, 0, 0, 0, BACKGROUND_OPACITY);
CGContextAddPath(context, roundRectPath);
CGContextFillPath(context);

const CGFloat STROKE_OPACITY = 0.25;
CGContextSetRGBStrokeColor(context, 1, 1, 1, STROKE_OPACITY);
CGContextAddPath(context, roundRectPath);
CGContextStrokePath(context);

CGPathRelease(roundRectPath);
}

- (void)handleSingleDoubleTap:(UITapGestureRecognizer *)sender {
NSLog(@"");    
CGPoint tapPoint = [sender locationInView:sender.view];
CALayer* layerThatWasTapped = [self.layer hitTest:tapPoint];

CGPoint convertedPoint = [layerThatWasTapped convertPoint:layerThatWasTapped.position toLayer:self.closeButton.layer];
BOOL myBool = [self.closeButton.layer containsPoint:convertedPoint];


[UIView beginAnimations:nil context:NULL];

sender.view.center = tapPoint;

[UIView commitAnimations];
}

- (void) touchesEnded: (NSSet *) touches  withEvent: (UIEvent *) event {
UITouch *touch = [touches anyObject];
CGPoint point = [touch locationInView: self];
CGPoint convertedPoint = [self convertPoint:point toView:[self.closeButton superview]];

if (CGRectContainsPoint(self.closeButton.bounds, convertedPoint)) {
    NSLog (@"YAY!");
}

} // touchesEnded
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1 に答える 1

0

NSNotificationsでこれを解決しました。このようなもの...少し静的です...もっと動的なはずです。

 [[NSNotificationCenter defaultCenter]
   addObserver:self
   selector:@selector(eventHandler:)
   name:@"SomeButtonClicked"
   object:nil ];

-(void)eventHandler: (NSNotification *) notification
{
    NSString *buttonWhichWasClicked = [[notification userInfo]   objectForKey:@"buttonName"];
    NSLog(@" %@", buttonWhichWasClicked);

    if ([buttonWhichWasClicked isEqualToString:@"close"]){
    [self removeView];
    }
     //Tell other buttons to dim/remove themselves as a new one was selected
 }

- (void)removeView
{
//code to remove view
}
于 2012-05-31T20:04:38.177 に答える