全部在iOS 7.1上
>模拟器iPhone Retina 3.5英寸;
>模拟器iPhone Retina 4英寸;
>模拟器iPhone Retina 4英寸(64位)
> Iphone 4
> iPhone 4s
我没有iPhone 5设备可以测试.
它不适用于新的iPhone 5s.有什么不同？
这是代码：
-(void)setupNavigationBar
{
self.saveSearchButton = [UIButton buttonWithType:UIButtonTypeCustom];
[self.saveSearchButton setimage:[UIImage imageNamed:@"Save Search"] forState:UIControlStatenormal];
[self.saveSearchButton setimage:[UIImage imageNamed:@"Save Search Active"] forState:UIControlStateHighlighted|UIControlStateSelected];
[self.saveSearchButton addTarget:self action:@selector(saveSearchButtonpressed)forControlEvents:UIControlEventTouchUpInside];
[self.saveSearchButton setFrame:CGRectMake(0,23,31)];
self.changeLayutButton = [UIButton buttonWithType:UIButtonTypeCustom];
[self.changeLayutButton setimage:[UIImage imageNamed:@"View List"] forState:UIControlStatenormal];
[self.changeLayutButton setimage:[UIImage imageNamed:@"View Grid"] forState:UIControlStateHighlighted|UIControlStateSelected];
[self.changeLayutButton addTarget:self action:@selector(changeViewLayoutButtonpressed)forControlEvents:UIControlEventTouchUpInside];
[self.changeLayutButton setFrame:CGRectMake(0,31)];
self.sortByButton = [UIButton buttonWithType:UIButtonTypeCustom];
[self.sortByButton setimage:[UIImage imageNamed:@"Sort By"] forState:UIControlStatenormal];
[self.sortByButton setimage:[UIImage imageNamed:@"Sort By Active"] forState:UIControlStateHighlighted|UIControlStateSelected];
[self.sortByButton addTarget:self action:@selector(sortByButtonpressed)forControlEvents:UIControlEventTouchUpInside];
[self.sortByButton setFrame:CGRectMake(0,31)];
UIBarButtonItem *fixedItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedspace target:nil action:nil];
fixedItem.width = 20;
UIBarButtonItem *saveSearchButton = [[UIBarButtonItem alloc] initWithCustomView:self.saveSearchButton];
UIBarButtonItem *changeViewButton = [[UIBarButtonItem alloc] initWithCustomView:self.changeLayutButton];
UIBarButtonItem *sortByButton = [[UIBarButtonItem alloc] initWithCustomView:self.sortByButton];
NSArray *barbuttonitems = @[sortByButton,fixedItem,changeViewButton,saveSearchButton];
self.navigationItem.rightBarButtonItems = barbuttonitems;
self.lastLayoutUsed = [[NSUserDefaults standardUserDefaults]objectForKey:@"LastLayoutUsed"];
if ([self.lastLayoutUsed isEqualToString:@"GridLayout"]){
self.changeLayutButton.selected = YES;
[NSTimer scheduledTimerWithTimeInterval:0.0 target:self selector:@selector(highlightButton:) userInfo:self.changeLayutButton repeats:NO];
}
}
我已经逐步完成了代码,并且所有属性都不是nil并且具有有效值.我已经检查过所有图像都是正确的一面.
如何在模拟器上的每个设备上工作,而不是真正的iPhone 5S？
此外,由于这两款手机(iPhone 4S和5S)拥有完全相同的屏幕宽度和iOS版本,我真的很困惑？
UPDATE
在iPhone 5上测试了上面的代码,它运行得很好.这导致相信它必须与iPhone 5S的64位有关吗？
更新2
从方法中删除了所有代码并将其更改为一个非常简单的按钮,如下所示：
self.saveSearchButton = [UIButton buttonWithType:UIButtonTypeCustom]; [self.saveSearchButton setTitle:@"Save" forState:UIControlStatenormal]; [self.saveSearchButton setTintColor:[UIColor blueColor]]; UIBarButtonItem *saveSearchButton = [[UIBarButtonItem alloc] initWithCustomView:self.saveSearchButton]; self.navigationItem.rightBarButtonItem = saveSearchButton;
现在,这不适用于任何设备或模拟器.
我在这做错了什么？
更新3 – 解决方案！
是的,所以这是一件简单的事情,引起了所有这些大惊小怪.我宣称我的UIButtons很弱而且不强 – 我的印象是UI元素需要很弱,因为它们常常会脱离视线？
我在评论部分的帮助下找到了这个答案.
这也无法解释为什么它在声称为弱的情况下适用于iPhone 4S和iPhone 5.它也适用于声称为弱的64位模拟器
这是否意味着64位模拟器将被用作指南,并且必须在设备上进行实际测试,因为在UIKit测试中模拟器似乎不准确？
我想知道更多关于此事的信息.
解决方法
AppleDocs中说明的解决方案是使用alloc init构造来创建一个按钮.
buttonWithType:
“This method is a convenience constructor for creating button objects with specific configurations. If you subclass UIButton,this method does not return an instance of your subclass. If you want to create an instance of a specific subclass,you must alloc/init the button directly.”
