这是我的代码：
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
[self setupSubviewsWithContentFrame:frame];
self.backgroundColor = [UIColor colorWithRed:0.0f/255.0 green:0.0f/255.0 blue:0.0f/255.0 alpha:.75];
self.opaque = NO;
}
return self;
}
- (void)setupSubviewsWithContentFrame:(CGRect)frameRect
{
// Get and set needed information for views/layout
NSMutableDictionary *punchButtonDict = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"Add a Punch", @"title", nil];
// Create the selector
SEL punchSelector = @selector(showScanner);
// Add selector to the dictionary
[punchButtonDict setObject:NSStringFromSelector(punchSelector) forKey:@"selectorKey"];
// Create dictionary for email button
NSMutableDictionary *okButtonDict = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"OK!", @"title", nil];
// Create the selector
SEL okSelector = @selector(hideView);
// Add selector to the dictionary
[okButtonDict setObject:NSStringFromSelector(okSelector) forKey:@"selectorKey"];
// Create an array of the button dictionaries
blackButtons = [NSArray arrayWithObjects:punchButtonDict, okButtonDict, nil];
// Count how many buttons are on this screen
NSUInteger itemCount = blackButtons.count;
// Stretchable image for counter background (placed here so it can be used for height)
UIImage* counterBg =[[UIImage imageNamed:@"CounterStretchableBackground.png"]stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0];
// Create a start x and y point for the view holder (to center it)
int xPoint = ((self.bounds.size.width - SUBVIEW_WIDTH)/2);
int yPoint = (((self.bounds.size.height - STATUS_BAR_HEIGHT) - (counterBg.size.height + (PADDING*(itemCount - 1)) + BUTTON_HEIGHT*itemCount)) / 2);
// Setup each subview
// First View viewHolder
UIView *viewHolder = [[UIView alloc] init];
// Get the height for viewHolder
int viewHolderHeight = (counterBg.size.height + (PADDING*2) + (BUTTON_HEIGHT*itemCount));
// Set the frame for the first view
viewHolder.frame = CGRectMake(xPoint, yPoint, SUBVIEW_WIDTH, viewHolderHeight);
// Create view for counter
UIImageView* counterView = [[UIImageView alloc] initWithImage:counterBg];
// Set the frame to center (with respect to other buttons)
counterView.frame = CGRectMake(0, 0, SUBVIEW_WIDTH, counterBg.size.height);
// Create numberCount label (subview of counterView)
_numberCount = [[UILabel alloc] initWithFrame:CGRectMake(0, COUNTER_PADDING, SUBVIEW_WIDTH, (((counterBg.size.height - COUNTER_PADDING)/2)))];
// Set label background to clear
_numberCount.backgroundColor = [UIColor clearColor];
// Set text
_numberCount.text = @"0";
// Set font
_numberCount.font = [UIFont fontWithName:@"Oswald" size:32.0];
// Set font color
_numberCount.textColor = [UIColor colorWithRed:255.0f/255.0 green:255.0f/255.0 blue:255.0f/255.0 alpha:.9];
// Set alignment
_numberCount.textAlignment = UITextAlignmentCenter;
// Set shadow color
_numberCount.shadowColor = [UIColor colorWithRed:0.0f/255.0 green:0.0f/255.0 blue:0.0f/255.0 alpha:1.0];
// Set shadow offset
_numberCount.shadowOffset = CGSizeMake(0.0, 1.0);
// Create numberCount label (subview of counterView)
UILabel *punchesLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, (((counterBg.size.height)/2) + PADDING*2), SUBVIEW_WIDTH, 13)];
// Set label background to clear
punchesLabel.backgroundColor = [UIColor clearColor];
// Set text
punchesLabel.text = @"Punches";
// Set font
punchesLabel.font = [UIFont fontWithName:@"PTSans-Bold" size:13.0];
// Set font color
punchesLabel.textColor = [UIColor colorWithRed:255.0f/255.0 green:255.0f/255.0 blue:255.0f/255.0 alpha:.9];
// Set alignment
punchesLabel.textAlignment = UITextAlignmentCenter;
// Set shadow color
punchesLabel.shadowColor = [UIColor colorWithRed:0.0f/255.0 green:0.0f/255.0 blue:0.0f/255.0 alpha:1.0];
// Set shadow offset
punchesLabel.shadowOffset = CGSizeMake(0.0, 1.0);
// Create toGoLabel (subview of counterView)
_toGoLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, (((counterBg.size.height)/2) + PADDING*3 + punchesLabel.frame.size.height), SUBVIEW_WIDTH, 12)];
// Set label background to clear
_toGoLabel.backgroundColor = [UIColor clearColor];
// Set text
_toGoLabel.text = @"7 more to go!";
// Set font
_toGoLabel.font = [UIFont fontWithName:@"PTSans-Regular" size:11.0];
// Set font color
_toGoLabel.textColor = [UIColor colorWithRed:240.0f/255.0 green:240.0f/255.0 blue:240.0f/255.0 alpha:.9];
// Set alignment
_toGoLabel.textAlignment = UITextAlignmentCenter;
// Set shadow color
_toGoLabel.shadowColor = [UIColor colorWithRed:0.0f/255.0 green:0.0f/255.0 blue:0.0f/255.0 alpha:1.0];
// Set shadow offset
_toGoLabel.shadowOffset = CGSizeMake(0.0, 1.0);
// Add views in proper order and location
[self addSubview:viewHolder];
[viewHolder addSubview:counterView];
[counterView addSubview:_numberCount];
[counterView addSubview:punchesLabel];
[counterView addSubview:_toGoLabel];
// First button y start point
int buttonY = counterBg.size.height + PADDING;
// Stretchable image for counter background (placed here so it can be used for height)
UIImage* blackButton =[[UIImage imageNamed:@"UIButtonBlack.png"]stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0];
// Iterate through each item
for (NSUInteger i = 0 ; i < itemCount ; i++)
{
// Get the right data
NSDictionary* data = [blackButtons objectAtIndex:i];
// Return the title for this button
NSString *buttonText = [data objectForKey:@"title"];
SEL buttonSelector = NSSelectorFromString([data objectForKey:@"selectorKey"]);
NSLog(@"%@", [data objectForKey:@"selectorKey"]);
// Create button frame
CGRect buttonFrame = CGRectMake(0, buttonY, SUBVIEW_WIDTH, BUTTON_HEIGHT);
UIButton *newButton;
UIImage *iconImage = [UIImage imageNamed:@"EmailIcon.png"];
newButton = [self buttonWithTitle:buttonText target:self selector:buttonSelector frame:buttonFrame image:blackButton insertImage:iconImage];
[self addSubview:newButton];
buttonY += (PADDING + BUTTON_HEIGHT);
}
// for (UIView *view in self.subviews)
//
// view.userInteractionEnabled=NO;
[self setNeedsDisplay];
}
- (UIButton *)buttonWithTitle:(NSString *)title target:(id)target selector:(SEL)inSelector frame:(CGRect)frame image:(UIImage*)image insertImage:(UIImage*)insertImage
{
// Create button
UIButton *button = [[UIButton alloc] initWithFrame:frame];
// Set button content alignment
button.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;
// Set button title
[button setTitle:title forState:UIControlStateNormal & UIControlStateHighlighted & UIControlStateSelected];
// Set button title color
[button setTitleColor:[UIColor colorWithRed:255.0f/255.0 green:255.0f/255.0 blue:255.0f/255.0 alpha:1.0] forState:UIControlStateNormal & UIControlStateHighlighted & UIControlStateSelected];
// Add the background image
[button setBackgroundImage:image forState:UIControlStateNormal];
// Add Events
[button addTarget:target action:inSelector forControlEvents:UIControlEventTouchUpInside & UIControlEventTouchDown];
// in case the parent view draws with a custom color or gradient, use a transparent color
[button setBackgroundColor:[UIColor clearColor]];
// Set titleShadowColor this way (apparently, titleLabel.shadowcolor does not work)
[button setTitleShadowColor:[UIColor colorWithRed:0.0f/255.0 green:0.0f/255.0 blue:0.0f/255.0 alpha:.75] forState:UIControlStateNormal & UIControlStateHighlighted & UIControlStateSelected];
// Set button titleLabel properties
button.titleLabel.font = [UIFont fontWithName:@"PTSans-Bold" size:13.0];
button.titleLabel.shadowOffset = CGSizeMake(1, 1);
// If there is an insertImage icon
if(insertImage != nil)
{
// padding between image and text
int seperate = 6;
// Image and title frame (used to center text/image)
int width = (button.titleLabel.frame.size.width + insertImage.size.width + seperate);
int buttonWidth = button.frame.size.width;
int xPadding = (buttonWidth - width)/2;
int yPadding = (button.frame.size.height - insertImage.size.height)/2;
// Create an image view for the image (standard icon is 12x13)
UIImageView *insertImageView = [[UIImageView alloc] initWithFrame:CGRectMake(xPadding, yPadding, insertImage.size.width, insertImage.size.height)];
// add the insertImage to the view
[insertImageView setImage:insertImage];
// add the insertImageView to the button
[button addSubview:insertImageView];
// Add offset with title
button.titleEdgeInsets = UIEdgeInsetsMake(BUTTON_VERTICAL_INSET, insertImage.size.width + seperate, 0, 0);
}
else
{
// No image so no horizontal offset but PTSans font needs a 2 vertical offset
button.titleEdgeInsets = UIEdgeInsetsMake(BUTTON_VERTICAL_INSET, 0, 0, 0);
}
return button;
}
这就是我将视图设置为视图控制器
的方法rewardsView = [[RewardsView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
self.view = rewardsView;
答案 0 :(得分：1)
在NSLog中，您不应该检查数据字典中存储的选择器字符串，但SEL变量是否包含正确的选择器。
我强烈建议简化代码。将按钮的参数存储在字典数组中的方法非常容易出错。你最终得到了很多参数。找到像你这样的错误（选择器不会触发）变得比必要的困难得多。