我以编程方式创建了10个按钮,并在按钮中设置了标题。现在我想动态增加按钮框架大小,它取决于文本。
我给出了一些条件并设置了帧大小。但是我如何设置确切的帧大小取决于文本(动态获取文本)。
我的示例代码是
float x=0, y=0, w, h=20;
for(int i = 100; i < 110; i++)
{
btn = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];
UIImage * img = [UIImage imageNamed:@"Round_Rect4.png"];
[btn setBackgroundImage:img forState:UIControlStateSelected];
titleString = [titleArray objectAtIndex:i-100]; // get button title
if([titleString length] <= 5)
{
w = 50;
btn.frame = CGRectMake(x,y,w,h);
x = x + 70;
}
if (([titleString length] >= 6) && ([titleString length] <=10))
{
w = 70;
btn.frame = CGRectMake(x,y,w,h);
x = x + 90;
}
if(([titleString length] >= 11) && ([titleString length] <=15))
{
w = 105;
btn.frame = CGRectMake(x,y,w,h);
x = x + 120;
}
if([titleString length] >= 16)
{
w = 120;
btn.frame = CGRectMake(x,y,w,h);
x = x + 140;
}
[btn setTitle:titleString forState: UIControlStateNormal];
[btn setTag:i];
[self.view addSubview:btn];
}
参见示例图片,
image-2 http://www.freeimagehosting.net/uploads/b6e0f234dc.png image-1 http://www.freeimagehosting.net/uploads/6b3daab12f.png
那么这可以设置确切的按钮帧大小,这取决于文本吗?plz指导我。
由于
答案 0 :(得分:14)
[btn sizeToFit]
答案 1 :(得分:7)
我得到了答案,我的工作代码是,
float x=0;
for(int i = 100; i < 110; i++)
{
btn = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];
UIImage * img = [UIImage imageNamed:@"Round_Rect4.png"];
[btn setBackgroundImage:img forState:UIControlStateSelected];
titleString = [titleArray objectAtIndex:i-100]; // get button title
CGSize fontSize = [titleString sizeWithFont:[UIFont systemFontOfSize:12.0]];
CGRect currentFrame = btn.frame;
CGRect buttonFrame = CGRectMake(x, currentFrame.origin.y, fontSize.width + 22.0, fontSize.height + 12.0);
[btn setFrame:buttonFrame];
x = x + fontSize.width + 35.0;
[btn setTitle:titleString forState: UIControlStateNormal];
[btn setTag:i];
[self.view addSubview:btn];
}
答案 2 :(得分:3)
非常简单的解决方案:
TestButton.titleEdgeInsets = UIEdgeInsetsMake(0, 8, 0, 8);
[TestButton sizeToFit];
float width = TestButton.frame.size.width + 20;
TestButton.frame = CGRectMake(TestButton.frame.origin.x, TestButton.frame.origin.y, width, 40);
答案 3 :(得分:1)
复制粘贴的Apples Bubble Level源代码。
这是你想要的行
UIImage *newImage = [image stretchableImageWithLeftCapWidth:10 topCapHeight:10];
这里的完整代码
- (UIButton *)buttonWithTitle:(NSString *)title target:(id)target selector:(SEL)inSelector frame:(CGRect)frame image:(UIImage*)image {
UIButton *button = [[UIButton alloc] initWithFrame:frame];
button.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;
[button setTitle:title forState:UIControlStateNormal & UIControlStateHighlighted & UIControlStateSelected];
[button setTitleColor:[UIColor blackColor] forState:UIControlEventTouchDown];
UIImage *newImage = [image stretchableImageWithLeftCapWidth:10 topCapHeight:10];
[button setBackgroundImage:newImage forState:UIControlStateNormal];
[button addTarget:target action:inSelector forControlEvents:UIControlEventTouchUpInside];
button.adjustsImageWhenDisabled = YES;
button.adjustsImageWhenHighlighted = YES;
[button setBackgroundColor:[UIColor clearColor]]; // in case the parent view draws with a custom color or gradient, use a transparent color
[button autorelease];
return button;
}