[英]How do I add resizing without IB
自从开始iPhone应用程序开发(过去9个月)以来,我仅使用过IB。 我有一个需要由其他开发人员构建的项目,需要针对iPhone屏幕进行优化。 在IB中没有问题,我知道该怎么做,但是在此项目中,导航栏仅使用代码添加,并且是图像视图。 有人可以建议我不使用IB时如何调整导航栏的大小/位置吗? 我正在尝试为iPhone 5屏幕增强此应用程序。
#define BAR_FRAME CGRectMake(0,0,320.0f,43.0f)
@implementation ICNavbarView
@synthesize homeButton=__homeButton;
@synthesize prevButton=__prevButton;
@synthesize nextButton=__nextButton;
@synthesize delegate=__delegate;
- (id)initWithFrame:(CGRect)frame
{
LogCmd();
self = [super initWithFrame:BAR_FRAME];
if (self) {
self.backgroundColor = [UIColor clearColor];
self.alpha = 0.9f;
// Add Navigation bar background // <<<<<< navigation bar from ui image
UIImageView *bgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"BgNavBarNew"]];
[self addSubview:bgView];
// Add back button
__prevButton = [UIButton buttonWithType:UIButtonTypeCustom];
__prevButton.frame = CGRectMake(30.0f, 6.0f, 29.0f, 31.0f);
UIImage *prevButtonPressed = [UIImage imageNamed:@"BtnPrevPressed"];
[__prevButton setImage:[UIImage imageNamed:@"BtnPrev"] forState:UIControlStateNormal];
[__prevButton setImage:prevButtonPressed forState:UIControlStateSelected];
[__prevButton setImage:prevButtonPressed forState:UIControlStateHighlighted];
[__prevButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:__prevButton];
// Add next button
__nextButton = [UIButton buttonWithType:UIButtonTypeCustom];
__nextButton.frame = CGRectMake(262.0f, 6.0f, 29.0f, 31.0f);
UIImage *nextButtonPressed = [UIImage imageNamed:@"BtnNextPressed"];
[__nextButton setImage:[UIImage imageNamed:@"BtnNext"] forState:UIControlStateNormal];
[__nextButton setImage:nextButtonPressed forState:UIControlStateSelected];
[__nextButton setImage:nextButtonPressed forState:UIControlStateHighlighted];
[__nextButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:__nextButton];
// Add home button
__homeButton = [UIButton buttonWithType:UIButtonTypeCustom];
__homeButton.frame = CGRectMake(145.0f, 6.0f, 31.0f, 30.0f);
UIImage *homeButtonPressed = [UIImage imageNamed:@"BtnHomePressed"];
[__homeButton setImage:[UIImage imageNamed:@"BtnHome"] forState:UIControlStateNormal];
[__homeButton setImage:homeButtonPressed forState:UIControlStateSelected];
[__homeButton setImage:homeButtonPressed forState:UIControlStateHighlighted];
[__homeButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:__homeButton];
}
return self;
}
- (id)init
{
return [self initWithFrame:CGRectZero];
}
#pragma mark - Button handlers
- (void)buttonPressed:(id)sender
{
if (sender == __prevButton) {
[self.delegate performSelector:@selector(navBarPrevButtonPressed)];
} else if (sender == __homeButton) {
[self.delegate performSelector:@selector(navBarHomeButtonPressed)];
} else {
[self.delegate performSelector:@selector(navBarNextButtonPressed)];
}
}
@end
到目前为止,我尝试了UIViewAutoresizingFlexibleHeight;
像这样
// Add Navigation bar background
UIImageView *bgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"BgNavBarNew"]];
[self addSubview:bgView];
//resize
bgView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
这似乎没有什么区别,导航栏也没有移动
我以前使用过此方法,但是我使用了setter函数而不是使用该属性。 我不知道这是否会改变任何东西,但是可以这样尝试:
[bgView setAutoresizingMask:(UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth)];
如果您有多个调整大小选项,则有效期很重要。
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