在旋转时更改动态创建的按钮大小
在旋转时更改动态创建的按钮大小
提问于 2013-05-23 08:15:49
我已经动态创建了这个按钮。它将被创建并填充来自我们数据库的数据，所以我不能使用IB。然而，在IB中，你可以声明一个@属性，并在以后做一些事情(比如旋转时调整大小和位置)。我的问题是:如何为动态创建的按钮提供属性，以便我可以在使用UIInterfaceOrientation theOrientation == self.interfaceOrientation；旋转到横向时更改大小？
UIButton *buttonWineries = [[UIButton alloc]initWithFrame:CGRectMake(10,yPositionWineries, 300, 160)];
buttonWineries.layer.borderColor = [UIColor lightGrayColor].CGColor;
buttonWineries.layer.borderWidth = 1.0;
buttonWineries.layer.cornerRadius = 5;
[buttonWineries setBackgroundColor:[UIColor darkGrayColor]];
[self.wineriesMenu addSubview:buttonWineries];
yPositionWineries += 190;
[buttonWineries addTarget:self action:@selector(btnWineryDetails:) forControlEvents:UIControlEventTouchDown];回答 3
Stack Overflow用户
回答已采纳
发布于 2013-05-23 13:00:39
我有一个更好的解决方案。只需做一件事，即在.h文件中实现这一行
@interface yourViewController:UIViewController
{
UIButton *buttonWineries;
}并将此代码实现为.m文件
-(void)ViewDidLoad
{
[super viewDidLoad];
buttonWineries = [[UIButton alloc]init];
buttonWineries.layer.borderColor = [UIColor lightGrayColor].CGColor;
buttonWineries.layer.borderWidth = 1.0;
buttonWineries.layer.cornerRadius = 5;
[buttonWineries setBackgroundColor:[UIColor darkGrayColor]];
[self.wineriesMenu addSubview:buttonWineries];
yPositionWineries += 190;
[buttonWineries addTarget:self action:@selector(btnWineryDetails:) forControlEvents:UIControlEventTouchDown];
BOOL isPortrait = UIDeviceOrientationIsPortrait(self.interfaceOrientation);
// now do whatever you need
if(isPortrait)
[buttonWineriessetFrame:CGRectMake(10,yPositionWineries, 300, 160)];
else
[buttonWineriessetFrame:CGRectMake(//your frame size for lanscape)];
}
// check your orientation angel and change your button size inside this delegate method
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
// Return YES for supported orientations
if (willRotateToInterfaceOrientation == UIInterfaceOrientationPortrait) {
if (buttonWineries)
[buttonWineries setFrame:CGRectMake(//put your frame size here)];
}
if (willRotateToInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) {
if (buttonWineries)
[buttonWineries setFrame:CGRectMake(//put your frame size here)];
}
}或
您可以添加didRotateFromInterfaceOrientation来代替willRotateToInterfaceOrientation来在调整大小或更改位置时停止动画
- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{
// Return YES for supported orientations
if (willRotateToInterfaceOrientation == UIInterfaceOrientationPortrait) {
if (buttonWineries)
[buttonWineries setFrame:CGRectMake(//put your frame size here)];
}
if (willRotateToInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) {
if (buttonWineries)
[buttonWineries setFrame:CGRectMake(//put your frame size here)];
}
if (fromInterfaceOrientation == UIDeviceOrientationLandscapeRight) {
if (buttonWineries)
[buttonWineries setFrame:CGRectMake(//put your frame size here)];
}
}我希望它能对你有所帮助。如果您仍然面临任何问题，请让我知道。谢谢
Stack Overflow用户
发布于 2013-05-23 10:30:45
只需设置框架即可。
buttonWineries.frame = CGRectMake(...);Stack Overflow用户
发布于 2013-05-23 12:36:29
您仍然可以使用@property来声明动态创建的视图的属性，使用您所熟悉的语法(不过如果您愿意，也可以删除IBOutlet )。要将属性连接到按钮，而不是执行以下操作：
UIButton *buttonWineries = [[UIButton alloc]initWithFrame:CGRectMake(10,yPositionWineries, 300, 160)];只需执行以下操作：
self.buttonWineries = [[UIButton alloc]initWithFrame:CGRectMake(10,yPositionWineries, 300, 160)];使用self.buttonWineries访问该按钮，方法与使用Interface Builder插座时的方式相同。
如果您实际创建了几个不同的按钮，您可能希望将@property设置为NSMutableArray而不是UIButton。使用-addObject:将每个按钮添加到数组中。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/16703644
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