自定义UIButton for Iphone [英] Custom UIButton for Iphone

问题描述

我的应用程序中有一个视图，它有许多基于服务器返回的项目数的按钮。因此，如果服务器返回10个项目，则应该有10个按钮，并且单击每个按钮应该呼叫另一个人。

I have an view in my App which has a number of buttons based on the number of items returned by the server. So if the server returns say 10 items, there should be 10 buttons and clicking on each button should call a different person.

出于上述目的，我创建了一个自定义按钮类源自UIButton。

For the above purpose I created a custom button class deriving from UIButton.

@implementation HopitalButton

@synthesize index;
@synthesize button_type;

- (id)initWithFrame:(CGRect)frame {

    if (self = [super initWithFrame:frame]) {
        UIImage* img = [UIImage imageNamed:@"dr_btn.png"];
        [img stretchableImageWithLeftCapWidth:10 topCapHeight:10];
        [self setBackgroundImage:img forState:UIControlStateNormal];
        [self setTitleColor:[UIColor colorWithRed:0.698 green:0.118 blue:0.376 alpha:1] forState:UIControlStateNormal] ;
        [self setFont:[UIFont fontWithName:@"Helvetica Bold" size:13]];
        self.titleLabel.textColor = [UIColor colorWithRed:178 green:48 blue:95 alpha:1];
        self.adjustsImageWhenHighlighted = YES;
    }
    return self;
}

- (void)dealloc {
    [super dealloc];
}


@end

现在上述代码的问题在于它不会创建与接口构建器中默认创建的按钮类似的按钮。边框丢失。

Now the problem with the above code is that it does not create buttons that look similar to the buttons created by default in Interface builder. The borders are missing.

我通过以下代码创建上述类型的按钮：

And I create buttons of the above type by the following code:

    HopitalButton* hb = [[HopitalButton alloc] init];
    hb.button_type = @"call";
    hb.frame = CGRectMake(50, 50 + i * 67, 220, 40);
    [self.scroll_view addSubview:hb];
    [hb setTitle:[[[self.office_full_list objectAtIndex:i] objectForKey:@"Staff" ]objectForKey:@"FullName"] forState:UIControlStateNormal];
    hb.index = [NSNumber numberWithInt:[self.button_items count]];
    [self.button_items insertObject:hb atIndex:[self.button_items count]];
    [hb addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];

我找不到设置此自定义按钮的按钮类型的方法。
我有办法吗？或者是否有更好的方法来设计代码。

I am not finding a way to set the button type for this custom button. Is there a way i can do it ? Or is there a better way to design the code.

推荐答案

首先从带有边框的可伸缩图像开始：

You first start with a stretchable image with a border:

替代文字http://grab.by/4lP

然后你制作一个拉伸图像作为背景的按钮并应用文字。

Then you make a button with the stretched image as the background and apply text.

INDEX_OFFSET = 82753; // random

UIButton *sampleButton = [UIButton buttonWithType:UIButtonTypeCustom];
[sampleButton setFrame:CGRectMake(kLeftMargin, 10, self.view.bounds.size.width - kLeftMargin - kRightMargin, 52)];
[sampleButton setTitle:@"Button Title" forState:UIControlStateNormal];
[sampleButton setFont:[UIFont boldSystemFontOfSize:20]];
[sampleButton setTag:<INDEX>+INDEX_OFFSET];
[sampleButton setBackgroundImage:[[UIImage imageNamed:@"redButton.png"] stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0] forState:UIControlStateNormal];
[sampleButton addTarget:self action:@selector(buttonPressed) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:sampleButton];

显然，您需要调整框架原点和尺寸以匹配您的应用，以及目标，选择器和标题。并且

Obviously, you will need to adjust the frame origin and size to match your app, as well as the target, selector, and title. And

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