![](/img/trans.png)
[英]How can i Load my main ViewController's view, from another viewcontroller's icon action?
[英]How can I load a ViewController or View into another ViewController with transparent background?
在我的应用程序中,我希望从UIButton调用时出现一个自定义弹出窗口。 当前,我正在使用TSAlertView,但我想实现更多的UI项并具有更多的自定义版本。 因此,我想做的是加载一个视图控制器或另一个视图控制器中的视图,并能够在它们之间传递信息。 请参阅以下示例:
根据我所读的内容,在另一个视图控制器中加载另一个视图控制器应该不是一个好习惯。 在这种情况下,我认为uiview是推荐的方法。 这个对吗?
我希望弹出窗口后面的viewcontroller外观变暗,也许是深色,不透明度设置为70%。 我该如何实现?
本质上,我正在尝试构建外观类似于AlertView的东西。
如果打算完全阻止背景视图,则可以将viewControllerB
设置为Form Sheet
。
准备显示viewControllerB
,请使用:
[viewControllerA presentViewController:viewControllerB animated:TRUE completion:nil]
您将需要一种方法来消除viewControllerB
; 按钮,网络操作等
故事板的一个示例:
- (void)someMethod {
UIStoryboard *storyboard = self.storyboard;
ViewControllerB *viewCotrollerB = [storyboard instantiateViewControllerWithIdentifier:@"ViewControllerB"];
[self presentModalViewController:viewControllerB animated:YES];
}
嗨,SReca,我也有相同的要求(如上图所示)来创建像UIalertview这样的视图。
在这里,您将需要创建一个新的UIView类而不是UIViewController,而无需.xib。
在新的UIView的init方法类中,您将需要以编程方式创建用户界面。 并尽可能保持其高度宽度。
为了加载这个新的UIView,您将只需要创建该uiview的对象并调用initwithframe,它将像uialerview一样以编程方式呈现该视图。
这是参考代码。
ModalPreviewViewController_iPhone.h
@interface ModalPreviewViewController_iPhone : UIView
@end
ModalPreviewViewController_iPhone.m
只需根据需要在initWithFrame中修改此示例代码
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
popUpView = [[UIView alloc] initWithFrame:CGRectMake(30,30,260,420)];
popUpBgView = [[UIView alloc] init];
popUpBgView.frame =CGRectMake(0,0,260,420);
[popUpBgView setBackgroundColor:[UIColor colorWithRed:51.0/255 green:51.0/255 blue:51.0/255 alpha:1]];
[popUpView addSubview:popUpBgView];
imageGalleryView=[[UIWebView alloc]initWithFrame:CGRectMake(0, 0, 260, 360)];
[imageGalleryView setBackgroundColor:[UIColor redColor]];
CGRect btnTempFrame=CGRectMake(5, 385, 90, 30);
btnTemp=[[UIButton alloc]initWithFrame:btnTempFrame];
[btnTemp setBackgroundImage:[UIImage imageNamed:@"btn_plain_iphone.png"] forState:UIControlStateNormal];
[btnTemp.titleLabel setFont:[UIFont boldSystemFontOfSize:13]];
[btnTemp.titleLabel setTextColor:[UIColor whiteColor]];
[btnTemp addTarget:self action:@selector(onDownloadClick:) forControlEvents:UIControlEventTouchUpInside];
CGRect btnSubscribeFrame=CGRectMake(100, 385, 90, 30);
UIButton *btnSubscribe=[[UIButton alloc]initWithFrame:btnSubscribeFrame];
[btnSubscribe setBackgroundImage:[UIImage imageNamed:@"btn_plain_iphone.png"] forState:UIControlStateNormal];
[btnSubscribe.titleLabel setFont:[UIFont boldSystemFontOfSize:13]];
[btnSubscribe.titleLabel setTextColor:[UIColor whiteColor]];
[btnSubscribe setTitle:@"Subscribe" forState:UIControlStateNormal];
[btnSubscribe addTarget:self action:@selector(moveTosubscribe:) forControlEvents:UIControlEventTouchUpInside];
CGRect closeButtonFrame=CGRectMake(195, 385, 60, 30);
UIButton *closeButton=[[UIButton alloc]initWithFrame:closeButtonFrame];
[closeButton setBackgroundImage:[UIImage imageNamed:@"btn_plain_iphone.png"] forState:UIControlStateNormal];
[closeButton.titleLabel setFont:[UIFont boldSystemFontOfSize:13]];
[closeButton.titleLabel setTextColor:[UIColor whiteColor]];
[closeButton setTitle:@"Close" forState:UIControlStateNormal];
[closeButton addTarget:self action:@selector(closeView:) forControlEvents:UIControlEventTouchUpInside];
CGRect swipeLabelFrame=CGRectMake(0, 0, 140, 15);
UILabel *swipeLabel=[[UILabel alloc]initWithFrame:swipeLabelFrame];
[swipeLabel setBackgroundColor:[UIColor clearColor]];
[swipeLabel setText:@"> SWIPE TO SEE MORE"];
[swipeLabel setTextColor:[UIColor lightGrayColor]];
[swipeLabel setFont:[UIFont systemFontOfSize:12]];
CGRect dateLabelFrame=CGRectMake(5, 365, 100, 15);
dateLabel=[[UILabel alloc]initWithFrame:dateLabelFrame];
[dateLabel setBackgroundColor:[UIColor clearColor]];
[dateLabel setText:@"July 2013 #93"];
[dateLabel setTextColor:[UIColor whiteColor]];
[dateLabel setFont:[UIFont systemFontOfSize:13]];
CGRect priceLabelFrame=CGRectMake(155, 365, 100, 15);
priceLabel=[[UILabel alloc]initWithFrame:priceLabelFrame];
[priceLabel setBackgroundColor:[UIColor clearColor]];
[priceLabel setText:@"$3.9"];
[priceLabel setTextColor:[UIColor colorWithRed:71.0/255 green:191.0/255 blue:226.0/255 alpha:1]];
[priceLabel setFont:[UIFont systemFontOfSize:13]];
[priceLabel setTextAlignment:NSTextAlignmentRight];
CGRect labelFrame=swipeLabel.frame;
labelFrame.origin=CGPointMake(popUpView.frame.origin.x+popUpView.frame.size.width - labelFrame.size.width, popUpView.frame.origin.y - labelFrame.size.height);
[swipeLabel setFrame:labelFrame];
[popUpView addSubview:imageGalleryView];
[popUpView addSubview:btnTemp];
[popUpView addSubview:closeButton];
[popUpView addSubview:btnSubscribe];
[popUpView addSubview:dateLabel];
[popUpView addSubview:priceLabel];
[UIView beginAnimations:@"curlup" context:nil];
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:.5];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:popUpView cache:YES];
[self addSubview:popUpView];
[self addSubview:swipeLabel];
[UIView commitAnimations];
UIColor *color = [[UIColor alloc] initWithRed:0.0 green:0.0 blue:0.0 alpha:0.5];
self.backgroundColor = color;
[[[UIApplication sharedApplication] keyWindow] addSubview:self];
[self initializeVariables];
}
return self;
}
在父视图控制器中,只需创建UIView类的对象,然后使用所需的initWithFrame和大小调用它即可
ModalPreviewViewController_iPhone *mpvc=[ModalPreviewViewController_iPhone alloc];
if(appDelegate.isIphone5)
mpvc=[mpvc initWithFrame:CGRectMake(0,0,320,480)];
else
mpvc=[mpvc initWithFrame:CGRectMake(0,0,320,568)];
和解雇UivewClass
在它的(UIviewClass的)方法之一(如closeView)中写下以下句子以消除它
[self removeFromSuperview];
如果您遇到任何问题,请告诉我
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