我为带有一些 subview 的 Iphone 5 (8.1) 制作了一个没有 Storyboard的代码。它适用于 Iphone 5 设备,但不适用于其他设备……我尝试插入自动调整大小功能,但我不知道为什么它仍然不起作用。
这是我的代码:
#import "MenuViewController.h"
#import "RevealViewController.h"
@interface MenuViewController ()
@property UIView *blurMask;
@property UIImageView *blurredBgImage;
@end
@implementation MenuViewController
@synthesize blurMask, blurredBgImage;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle*)nibBundleOrNil{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad{
_barButton.target = self.revealViewController;
_barButton.action = @selector(revealToggle:);
[self.view addGestureRecognizer:self.revealViewController.panGestureRecognizer];
[super viewDidLoad];
[self Blur:blurredBgImage];
}
- (void)loadView{
[super loadView];
self.view = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.view.backgroundColor = [UIColor whiteColor];
[[self view] setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
[[self view] setAutoresizesSubviews:YES];
// content view
[self.view addSubview:[self createContentView]];
// slide view
[self.view addSubview:[self createScrollView]];
blurMask = [[UIView alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 50, self.view.frame.size.width, 50)];
blurMask.backgroundColor = [UIColor whiteColor];
blurredBgImage.layer.mask = blurMask.layer;
}
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
blurMask.frame = CGRectMake(blurMask.frame.origin.x,
self.view.frame.size.height - 0 - scrollView.contentOffset.y,
blurMask.frame.size.width,
blurMask.frame.size.height + scrollView.contentOffset.y);
}
- (UIView *)createContentView
{
UIView *contentView = [[UIView alloc] initWithFrame:self.view.frame];
[contentView setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
[contentView setAutoresizesSubviews:YES];
UIImageView *contentImage = [[UIImageView alloc] initWithFrame:contentView.frame];
contentImage.image = [UIImage imageNamed:@"back-ground.png"];
[contentView addSubview:contentImage];
return contentView;
}
- (UIView *)createScrollView{
UIView *containerView = [[UIView alloc] initWithFrame:self.view.frame];
[containerView setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
[containerView setAutoresizesSubviews:YES];
blurredBgImage = [[UIImageView alloc] initWithFrame:CGRectMake(0, -57, self.view.frame.size.width, 568)];
[blurredBgImage setContentMode:UIViewContentModeScaleToFill];
[containerView addSubview:blurredBgImage];
UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:self.view.frame];
[containerView addSubview:scrollView];
scrollView.contentSize = CGSizeMake(self.view.frame.size.width, self.view.frame.size.height*2 - 110);
scrollView.pagingEnabled = YES;
scrollView.delegate = self;
scrollView.bounces = NO;
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.showsVerticalScrollIndicator = NO;
UIView *slideContentView = [[UIView alloc] initWithFrame:CGRectMake(0, 455, self.view.frame.size.width, 508)];
slideContentView.backgroundColor = [UIColor clearColor];
[scrollView addSubview:slideContentView];
UILabel *slideUpLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 6, self.view.frame.size.width, 50)];
slideUpLabel.text = @"Informations";
[slideUpLabel setFont:[UIFont fontWithName:@"HelveticaNeue-Light" size:18]];
[slideUpLabel setTextAlignment:NSTextAlignmentCenter];
[slideUpLabel setContentMode:UIViewContentModeScaleToFill];
slideUpLabel.textColor = [UIColor colorWithWhite:1 alpha:0.5];
[slideContentView addSubview:slideUpLabel];
UIImageView *slideUpImage = [[UIImageView alloc] initWithFrame:CGRectMake(self.view.frame.size.width/2 - 12, 4, 24, 22.5)];
slideUpImage.image = [UIImage imageNamed:@"up-arrow.png"];
[slideContentView addSubview:slideUpImage];
UITextView *detailsText = [[UITextView alloc] initWithFrame:CGRectMake(20, 60, 275, 350)];
detailsText.backgroundColor = [UIColor clearColor];
detailsText.text = @"Details text… with information ";
[detailsText setFont:[UIFont fontWithName:@"HelveticaNeue-Light" size:16]];
[detailsText setTextAlignment:NSTextAlignmentCenter];
detailsText.textColor = [UIColor colorWithWhite:1 alpha:0.6];
[slideContentView addSubview:detailsText];
UIImageView *Facebook = [[UIImageView alloc] initWithFrame:CGRectMake(105, 260, 42, 42)];
Facebook.image = [UIImage imageNamed:@"facebook.png"];
[slideContentView addSubview:Facebook];
UIImageView *Twitter = [[UIImageView alloc] initWithFrame:CGRectMake(168, 260, 42, 42)];
Twitter.image = [UIImage imageNamed:@"twitter.png"];
[slideContentView addSubview:Twitter];
UITextView *rsText = [[UITextView alloc] initWithFrame:CGRectMake(20, 300, 275, 350)];
rsText.backgroundColor = [UIColor clearColor];
rsText.text = @"Text Facebook text Twitter. mail ";
[rsText setFont:[UIFont fontWithName:@"HelveticaNeue-Light" size:16]];
[rsText setTextAlignment:NSTextAlignmentCenter];
rsText.textColor = [UIColor colorWithWhite:1 alpha:0.6];
[slideContentView addSubview:rsText];
UITextView *endText = [[UITextView alloc] initWithFrame:CGRectMake(25, 450, 270, 350)];
endText.backgroundColor = [UIColor clearColor];
endText.text = @"Thank you ";
[endText setFont:[UIFont fontWithName:@"HelveticaNeue-Light" size:12]];
[endText setTextAlignment:NSTextAlignmentCenter];
endText.textColor = [UIColor colorWithWhite:1 alpha:0.6];
[slideContentView addSubview:endText];
return containerView;
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)Blur:(UIView *)view {
UIView *blurView=nil;
if ([UIBlurEffect class]) {
UIBlurEffect *blurEffect= [UIBlurEffect effectWithStyle:UIBlurEffectStyleDark];
blurView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
blurView.frame = view.frame;
}else {
blurView = [[UIToolbar alloc] initWithFrame:view.bounds];
}
[blurView setTranslatesAutoresizingMaskIntoConstraints:NO];
[view addSubview:blurView];
[view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[blurView]|" options:0 metrics:0 views:NSDictionaryOfVariableBindings(blurView)]];
[view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[blurView]|" options:0 metrics:0 views:NSDictionaryOfVariableBindings(blurView)]];
}
@end
有什么想法吗?反馈? 谢谢。
最佳答案
以下内容更多地属于反馈:
- 这看起来像是您的代码是复制/粘贴的,但是您的
@property
调用没有指定原子性或 ARC 应该如何对待它们,所以这可能有点释义。 - 如果您要以编程方式创建 View Controller ,它不会调用
initWithNib:
- 要将目标/操作分配给按钮,您将使用
addTarget:action:forControlEvents:
@synthesize
是不需要的,除非您要编写自定义 setter- Objc 中的方法始终以小写字母开头 (
[MenuViewController Blur]
) - 来自
loadView
文档:Your custom implementation of this method should not call super.
- 如果您明确设置 View Controller
view
属性以具有[UIScreen mainScreen].bounds
框架,则无需设置其自动调整行为——它已经与屏幕尺寸相匹配了。这适用于您这样做的所有观点。 - 不确定此处减去 0 的原因:
self.view.frame.size.height - 0 -scrollView.contentOffset.y
- 在您的
createScrollView
方法中发生了相当多的事情...如果您的代码中没有注释或某种图像显示每个 subview 的位置,则很难理解。正在设置的 View 层次结构似乎过于复杂,最好在自定义子类UIView
或UIScrollView
中完成。我会这样想:如果你一个月不看这段代码,你能轻松地说出这个 View 会是什么样子吗? - 这可能只适用于 5,因为您将
UIKit
元素设置到框架中的特定位置,而不是使用自动布局或自动调整大小掩码(尽管使用自动布局,这是 future ,苹果有倾向于停止支持旧技术)
关于ios - 如何以编程方式使用 autoresizing IOS?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28653245/