I want to create custom navigation bar like WhatsApp uses to display call indicator in the application as given below.
I have successfully added view like above but it's not responsive because I am not able to detect touch on status bar. I can touch only part below "Touch to return to call".
Code is as given below.
#property (nonatomic) UIView *navigationBarTopView;
UIWindow *window = [UIApplication sharedApplication].keyWindow;
if (_navigationBarTopView == nil) {
_navigationBarTopView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, window.frame.size.width, 60.0)];
[_navigationBarTopView setBackgroundColor:[UIColor colorWithRed:76.0/255.0 green:217.0/255.0 blue:100.0/255.0 alpha:1]];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, _navigationBarTopView.frame.size.height - 15, window.frame.size.width, 10)];
[label setText:#"Touch to return to call"];
[label setTextColor:[UIColor whiteColor]];
[label setFont:[UIFont preferredFontForTextStyle:UIFontTextStyleFootnote]];
[label setTextAlignment:NSTextAlignmentCenter];
[_navigationBarTopView addSubview:label];
//The setup code (in viewDidLoad in your view controller)
UITapGestureRecognizer *singleFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(handleSingleTap:)];
[_navigationBarTopView addGestureRecognizer:singleFingerTap];
UITapGestureRecognizer *singleFingerTap1 = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(handleSingleTap:)];
[label addGestureRecognizer:singleFingerTap1];
}
[window addSubview:_navigationBarTopView];
I have also tried to add touch on status bar as give below but it doesn't work.
How do I detect touches on UIStatusBar/iPhone
Also navigation bar is not coming downside. I have tried to set keyWindow frame. But that is also not working.
UIStatusBar has higher priority than your application's window, so you won't get any touch event through status bar.
To get touch event through status bar you need a window with higher window level than UIStatusBar.
Try below code:
#import "AppDelegate.h"
#interface AppDelegate ()
#property (nonatomic) UIWindow *buttonWindow;
#property (nonatomic) UIWindow *textWindow;
#property (nonatomic) CGFloat callViewHeight;
#end
#implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
if (#available(iOS 11.0, *)) {
if (([[[UIApplication sharedApplication] delegate] window].safeAreaInsets.top > 20.0)) {
self.callViewHeight = 55.0f;
} else {
self.callViewHeight = 35.0f;
}
} else {
self.callViewHeight = 35.0f;
}
return YES;
}
-(void)showVideoCallButton{
self.textWindow = [[UIWindow alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, self.callViewHeight)];
self.textWindow.windowLevel = self.window.windowLevel + 1;
self.textWindow.hidden = FALSE;
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, self.callViewHeight)];
view.backgroundColor = [UIColor colorWithRed:76.0/255.0 green:217.0/255.0 blue:100.0/255.0 alpha:1];
view.clipsToBounds = TRUE;
UILabel *lblName = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, self.callViewHeight)];
lblName.textAlignment = NSTextAlignmentCenter;
[lblName setFont:[UIFont preferredFontForTextStyle:UIFontTextStyleFootnote]];
lblName.text = #"";
UILabel *lblTouch = [[UILabel alloc] initWithFrame:CGRectMake(0, self.callViewHeight - 20.0f, [UIScreen mainScreen].bounds.size.width, 20.0f)];
lblTouch.textAlignment = NSTextAlignmentCenter;
[lblTouch setFont:[UIFont preferredFontForTextStyle:UIFontTextStyleFootnote]];
lblTouch.text = #"Touch to return to call";
lblTouch.textColor = UIColor.whiteColor;
[view addSubview:lblTouch];
[view addSubview:lblName];
[self.textWindow addSubview:view];
self.buttonWindow = [[UIWindow alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, self.callViewHeight)];
self.buttonWindow.windowLevel = UIWindowLevelStatusBar + 1;
self.buttonWindow.hidden = FALSE;
UIButton *button = [[UIButton alloc] initWithFrame:lblName.bounds];
[button setTitle:#"" forState:UIControlStateNormal];
[button addTarget:self action:#selector(buttonTouched) forControlEvents:UIControlEventTouchUpInside];
[self.buttonWindow addSubview:button];
self.textWindow.transform = CGAffineTransformMakeTranslation(0, -self.callViewHeight);
self.buttonWindow.transform = CGAffineTransformMakeTranslation(0, -self.callViewHeight);
[UIView animateWithDuration:0.25
animations:^{
self.textWindow.transform = CGAffineTransformIdentity;
self.buttonWindow.transform = CGAffineTransformIdentity;
if (#available(iOS 11.0, *)) {
if (([[[UIApplication sharedApplication] delegate] window].safeAreaInsets.top > 20.0)) {
self.window.frame = CGRectMake(0, self.callViewHeight - 40.0f, self.window.bounds.size.width, self.window.bounds.size.height - self.callViewHeight + 40.0f);
} else {
self.window.frame = CGRectMake(0, self.callViewHeight - 20.0f, self.window.bounds.size.width, self.window.bounds.size.height - self.callViewHeight + 20.0f);
}
} else {
self.window.frame = CGRectMake(0, self.callViewHeight - 20.0f, self.window.bounds.size.width, self.window.bounds.size.height - self.callViewHeight + 20.0f);
}
}];
}
-(void)hideVideoCallButton{
[UIView animateWithDuration:0.25
animations:^{
self.textWindow.transform = CGAffineTransformMakeTranslation(0, -self.callViewHeight);
self.buttonWindow.transform = CGAffineTransformMakeTranslation(0, -self.callViewHeight);
self.window.frame = [UIScreen mainScreen].bounds;
} completion:^(BOOL finished) {
dispatch_async(dispatch_get_main_queue(), ^{
self.buttonWindow.hidden = TRUE;
self.buttonWindow = nil;
self.textWindow.hidden = TRUE;
self.textWindow = nil;
});
}];
}
-(void)buttonTouched{
NSLog(#"Button Touched");
}
#end
I tried in singleViewcontroller and UITabbar Controller also, the sample project I attached here, for status bar Tap action I followed Flar answer
- (void)viewDidLoad {
[super viewDidLoad];
dispatch_async(dispatch_get_main_queue(), ^(void){
//Run UI Updates
[self createDummyView];
});
}
-(void)createDummyView{
if (_navigationBarTopView == nil) {
float statusBarHeight = [self statusBarHeight];
CGFloat width = [UIScreen mainScreen].bounds.size.width;
_navigationBarTopView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, width, self.navigationController.navigationBar.frame.size.height + statusBarHeight)];
[_navigationBarTopView setBackgroundColor:[UIColor colorWithRed:76.0/255.0 green:217.0/255.0 blue:100.0/255.0 alpha:1]];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, _navigationBarTopView.frame.size.height - 15,width, 10)];
[label setText:#"Touch to return to call"];
[label setTextColor:[UIColor whiteColor]];
[label setFont:[UIFont preferredFontForTextStyle:UIFontTextStyleFootnote]];
[label setTextAlignment:NSTextAlignmentCenter];
[label setUserInteractionEnabled:YES];
[_navigationBarTopView addSubview:label];
UITapGestureRecognizer *singleFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(handleSingleTap:)];
[_navigationBarTopView addGestureRecognizer:singleFingerTap];
[self.navigationController.view addSubview:_navigationBarTopView];
}
-(float) statusBarHeight
{
CGSize statusBarSize = [[UIApplication sharedApplication] statusBarFrame].size;
return MIN(statusBarSize.width, statusBarSize.height);
}
-(void)handleSingleTap:(UITapGestureRecognizer*)recognizer{
NSLog(#"recognizer == %#", recognizer.view.tag);
}
Related
In my app I have a UINavigationController with a UISplitViewController as rootViewController. The masterViewController of this UISplitViewController sets a UIView with a UITextField centered inside it as titleView. This is wat it looks like in the storyboard.
- (void)viewDidLoad {
[super viewDidLoad];
self.titleView = [[UIView alloc] initWithFrame:CGRectMake((self.view.frame.size.width-((self.view.frame.size.width/2)+150))/2, 0, (self.view.frame.size.width/2)+150, 30)];
self.rightButton = [[UIButton alloc] init];
[self.rightButton setImage:newImage forState:UIControlStateNormal];
[self.rightButton addTarget:self action:#selector(barButtonRight:) forControlEvents:UIControlEventTouchUpInside];
self.rightButton.frame = CGRectMake(0, 0, 30, 30);
self.rightButton.tintColor = [UIColor whiteColor];
[self.rightButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc] initWithCustomView:self.rightButton];
self.splitViewController.navigationItem.rightBarButtonItem = rightButton;
self.textField = [[UITextField alloc]init];
if (IDIOM == IPAD) {
self.textField.frame = CGRectMake(0, 0, self.titleView.frame.size.width, 30);
} else {
self.textField.frame = CGRectMake(65, 0, (self.view.frame.size.width-20)-110, 30);
}
self.textField.backgroundColor = [UIColor purpleColor];
if (IDIOM == IPAD) {
UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 15, 20)];
self.textField.leftView = paddingView;
self.textField.leftViewMode = UITextFieldViewModeAlways;
}
[self.titleView addSubview:self.textField];
self.splitViewController.navigationItem.titleView = self.titleView;
[self.navigationController setNavigationBarHidden:YES animated:NO];
}
Now, when a the right button is pressed a strange thing happens.
- (IBAction)barButtonRight:(id)sender {
[self performSegueWithIdentifier:#"showDetail" sender:self];
}
The UITextField is pushed all the way to the left inside the UIView. I commented out most of my viewDidLoad code and this is still happening. Any ideas as to what's causing this?
I have an app.In this app so many class methods used.I want to know is it possible to remove subview from class mehtod?
+(void)addPregressIndicator:(NSString *)strText view:(UIView *)ShowView
{
CGRect appFrame = [[UIScreen mainScreen] applicationFrame];
UIView *busyView = [[UIView alloc] initWithFrame:appFrame];
busyView.backgroundColor = [UIColor clearColor];
busyView.opaque = YES;
UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 95, 95)];
container.layer.borderWidth = 5;
container.layer.cornerRadius = 10;
container.layer.borderColor = [UIColor whiteColor].CGColor;
[container setBackgroundColor:[UIColor blackColor]];
UIActivityIndicatorView *av = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
av.center = CGPointMake(container.center.x, 34);
av.hidesWhenStopped = NO;
[av startAnimating];
UILabel *lbl = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 95, 30)];
lbl.text = strText;
lbl.textAlignment = NSTextAlignmentCenter;
lbl.center = CGPointMake(container.center.x, 70);
lbl.textColor = [UIColor whiteColor];
lbl.backgroundColor = [UIColor clearColor];
[container addSubview:av];
[container addSubview:lbl];
container.center = busyView.center;
[busyView addSubview:container];
[ShowView addSubview:busyView];
}
+(void)removePregressIndicator:(UIView *)hideView;
{
// i want remove busyview that subview in viewcontroller.
}
Please help me to remove subivew.
You can set a unique tag for the busyView like this busyView.tag = your unique tag;
And then you can remove the view with this code
+(void)removePregressIndicator:(UIView *)hideView;
{
UIView *busyView = [hideView viewWithTag:your unique tag];
if (busyView){
[busyView removeFromSuperview];
}
}
You should make sure that the busyView tag is unique for all the subviews of hideView.
Assigne tag to a each view and access the view with tag and put it
+(void)removePregressIndicator:(UIView *)hideView;
{
UIView *viewToRemove = [self.view viewWithTag:assigne_tag];
[viewToRemove removeFromSuperview];
}
+ (void)removePregressIndicator:(UIView *)hideView;
{
UIView *progView=[self.view viewWithTag:YourTag];
[progView removeFromSuperview];
}
I am trying to add the uiLabel on top of the uiImageVIew which is the background image. When it comes to adding the uiLabel on top of the uiImageView, the uilabel cannot be aded when testing and running. Would you please tell me the alternatives or precautions if doing so ?
The below is my code :
#implementation CoverViewController
- (void)viewDidLoad {
[super viewDidLoad];
_container = [[UIView alloc] initWithFrame:[self.view bounds]];
[self setTapDemo :[UIImage imageNamed:#"cover_1_d.png"] ] ;
}
- (void) setTapDemo: (UIImage *) cover {
_image = [UIImage imageNamed:#"shaded_region.png"];
_imageShaded = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
[_imageShaded setImage:_image];
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
[imageView setImage: cover ];
_imageShaded.userInteractionEnabled = YES;
UITapGestureRecognizer *myGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:#selector(touchesBegan:)];
myGesture.numberOfTapsRequired = 1;
myGesture.delegate=self;
[_imageShaded addGestureRecognizer:myGesture];
[_imageShaded setContentMode:UIViewContentModeScaleAspectFill];
NSString * text = #"Quad name:";
CGSize labelSize = CGSizeMake(60, CGFLOAT_MAX);
UILabel *fromLabel = [[UILabel alloc]initWithFrame:CGRectMake(91, 15, labelSize.width, labelSize.height)];
fromLabel.text = text;
fromLabel.numberOfLines = 1;
fromLabel.lineBreakMode = NSLineBreakByWordWrapping;
fromLabel.baselineAdjustment = UIBaselineAdjustmentAlignBaselines; // or UIBaselineAdjustmentAlignCenters, or UIBaselineAdjustmentNone
fromLabel.adjustsFontSizeToFitWidth = YES;
fromLabel.minimumScaleFactor = 10.0f/12.0f;
fromLabel.clipsToBounds = YES;
fromLabel.backgroundColor = [UIColor clearColor];
fromLabel.textAlignment = NSTextAlignmentLeft;
[_imageShaded addSubview:fromLabel];
[imageView addSubview:fromLabel];
[_container addSubview:_imageShaded];
[_container addSubview:imageView];
[_container addSubview:fromLabel];
[self.view addSubview:_container];
[self.view sendSubviewToBack:_container];
}
Check This
- (void) setTapDemo: (UIImage *) cover {
_image = [UIImage imageNamed:#"images.jpg"];
_imageShaded = [[UIImageView alloc] initWithFrame:CGRectMake(0, 60, self.view.frame.size.width, self.view.frame.size.height)];
[_imageShaded setImage:_image];
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 60, self.view.frame.size.width, self.view.frame.size.height)];
[imageView setImage: cover ];
_imageShaded.userInteractionEnabled = YES;
UITapGestureRecognizer *myGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:#selector(touchesBegan:)];
myGesture.numberOfTapsRequired = 1;
myGesture.delegate=self;
[_imageShaded addGestureRecognizer:myGesture];
[_imageShaded setContentMode:UIViewContentModeScaleAspectFill];
NSString * text = #"Quad name:";
// CGSize labelSize = CGSizeMake(60, CGFLOAT_MAX);
UILabel *fromLabel = [[UILabel alloc]initWithFrame:CGRectMake(91, 15, 300, 40)];
fromLabel.text = text;
fromLabel.textColor = [UIColor greenColor];
fromLabel.numberOfLines = 1;
fromLabel.lineBreakMode = NSLineBreakByWordWrapping;
fromLabel.baselineAdjustment = UIBaselineAdjustmentAlignBaselines; // or UIBaselineAdjustmentAlignCenters, or UIBaselineAdjustmentNone
fromLabel.adjustsFontSizeToFitWidth = YES;
fromLabel.minimumScaleFactor = 10.0f/12.0f;
fromLabel.clipsToBounds = YES;
fromLabel.backgroundColor = [UIColor clearColor];
fromLabel.textAlignment = NSTextAlignmentLeft;
[_container addSubview:_imageShaded];
[_container addSubview:imageView];
[self.view addSubview:_container];
[self.view sendSubviewToBack:_container];
[imageView addSubview:fromLabel];
}
You are adding your UILabel more than once on different views. you should add it on a single view at a time;
//[_imageShaded addSubview:fromLabel]; // 1
//[imageView addSubview:fromLabel]; // 2
[_container addSubview:_imageShaded];
[_container addSubview:imageView];
//[_container addSubview:fromLabel]; //3
I'm setting up a subclass of UIView to roll my own UIAlertView style view. I've got everything set up properly with displaying the view, but I'm at a bit of a loss as to how to dismiss the view properly. Specifically, when a user taps on the button in the view, it needs to animate out of the main view. This is the code for the view itself:
+ (void)showCustomAlertWithTitle:(NSString *)titleString andMessage:(NSString *)messageString inView:(UIView *)view andButton1Title: (NSString *)button1Title andButton2Title: (NSString *)button2Title
{
UIWindow *window = [[[UIApplication sharedApplication] windows] lastObject];
CGRect windowFrame = window.frame;
[view setAlpha:0.5f];
UIColor *buttonColor = [UIColor colorWithRed:0/255.0f green:130/255.0f blue:216/255.0f alpha:1];
UIColor *titleColor = [UIColor colorWithRed:0/255.0f green:153/255.0f blue:102/255.0f alpha:1];
// Shade
UILabel *shadeWindow = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, windowFrame.size.width, windowFrame.size.height)];
shadeWindow.backgroundColor = [UIColor blackColor];
shadeWindow.alpha = 0.50f;
// Define size and origin of alert box
float alertBoxHeight = 225;
float alertBoxWidth = 200;
float alertBoxXorigin = windowFrame.size.width / 2 - (alertBoxWidth / 2);
float alertBoxYorigin = windowFrame.size.height / 2 - (alertBoxHeight / 2);
// Initialize background
UIView *alertBackground = [[UIView alloc] initWithFrame:CGRectMake(alertBoxXorigin, alertBoxYorigin, alertBoxWidth, alertBoxHeight)];
alertBackground.layer.cornerRadius = 5.0f;
[alertBackground.layer setMasksToBounds:YES];
alertBackground.layer.backgroundColor = [UIColor whiteColor].CGColor;
// Title Label
UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, alertBoxWidth, 40)];
titleLabel.text = titleString;
titleLabel.textAlignment = NSTextAlignmentCenter;
titleLabel.textColor = titleColor;
titleLabel.layer.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.05f].CGColor;
[titleLabel setFont:[UIFont fontWithName:#"AvenirNext-Bold" size:20.0]];
// Title Divider
UILabel *titleDivider = [[UILabel alloc] initWithFrame:CGRectMake(0, 40, alertBoxWidth, 1.0)];
titleDivider.backgroundColor = [UIColor grayColor];
titleDivider.alpha = 0.5f;
// Alert Message Text
UITextView *alertMessage = [[UITextView alloc] initWithFrame:CGRectMake(0, 40, alertBoxWidth, alertBoxHeight - 90)];
alertMessage.text = messageString;
alertMessage.layer.backgroundColor = [UIColor whiteColor].CGColor;
[alertMessage setFont:[UIFont fontWithName:#"Avenir" size:15.0]];
alertMessage.textAlignment = NSTextAlignmentCenter;
alertMessage.textColor = [UIColor grayColor];
[alertMessage setEditable:NO];
// Button 1
UIButton *button1 = [[UIButton alloc] init];
UIButton *button2 = [[UIButton alloc] init];
[button1 addTarget:self action:#selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
if (button2Title == nil)
{
button1.frame = CGRectMake(10, alertBoxHeight - 50, alertBoxWidth - 20, 40);
}
else
{
button1.frame = CGRectMake(10, alertBoxHeight - 50, (alertBoxWidth / 2) - 20, 40);
button2.frame = CGRectMake(alertBoxWidth / 2 + 10, alertBoxHeight - 50, (alertBoxWidth / 2) - 20, 40);
}
button1.layer.backgroundColor = buttonColor.CGColor;
[button1 setTitle:button1Title forState:UIControlStateNormal];
[button1.titleLabel setFont:[UIFont fontWithName:#"AvenirNext-Bold" size:15.0f]];
button1.layer.cornerRadius = 2.5f;
[button1.layer setMasksToBounds:YES];
// Button 2
button2.layer.backgroundColor = buttonColor.CGColor;
[button2 setTitle:button2Title forState:UIControlStateNormal];
[button2.titleLabel setFont:[UIFont fontWithName:#"AvenirNext-Bold" size:15.0f]];
button2.layer.cornerRadius = 2.5f;
[button2.layer setMasksToBounds:YES];
// Bounce Implementation
alertBackground.transform = CGAffineTransformMakeScale(0.01, 0.01);
[UIView animateWithDuration:0.25 delay:0 options:UIViewAnimationOptionCurveEaseOut animations:^
{
alertBackground.transform = CGAffineTransformIdentity;
}
completion:^(BOOL finished)
{
// do something once the animation finishes, put it here
}];
[window addSubview:view];
[window addSubview:alertBackground];
[view addSubview:shadeWindow];
[view bringSubviewToFront:alertBackground];
[alertBackground addSubview:button1];
[alertBackground addSubview:titleLabel];
[alertBackground addSubview:titleDivider];
[alertBackground addSubview:alertMessage];
[alertBackground addSubview:button2];
[alertBackground bringSubviewToFront:titleDivider];
/* [[[customAlerts sharedInstance] subViewArray] addObject:alertBackground];
[[[customAlerts sharedInstance] subViewArray] addObject:view];
[[[customAlerts sharedInstance] subViewArray] addObject:window];*/
}
When button1 is tapped, for instance, I need to have it animate the view out of the superView and remove it from the stack. I'm not sure how to handle this. Does anyone have any ideas?
To permanently remove a view, I generally use the UIView instance method removeFromSuperview. followed by a line setting the relevant variable to nil:
[myAlertView removeFromSuperview];
myAlertView = nil;
In your case then, I think you need to move the view off the screen by animating the its bounds property, then use the above couple of lines to remove any references to it.
Just found the answer here:
Dismiss view controller from #selector without creating seperate method
Had to download some custom classes but it worked:
[button1 addEventHandler:^(id sender, UIEvent *event)
{
[UIView animateWithDuration:0.25f animations:^{
[alertBackground setAlpha:0.0f];
[shadeWindow setAlpha:0.0f];
[window setAlpha:0.0f];
}];
} forControlEvent:UIControlEventTouchUpInside];
Custom classes can be found here:
https://github.com/ZeR0-Wu/JTTargetActionBlock
I am interested in creating a pop-up notification view similar to the design patterns seen below, where a UIView pops up and the rest of the screen is darkened, and done without using a new modal view. Since this design pattern is so commonly seen, I was wondering if there is a "tried-and-true" way to doing it (or there a widely used open source framework like AFNetworking for downloading/uploading files and images)?
Thanks.
Here's a good start:
PopupView.h
#import <UIKit/UIKit.h>
#interface PopupView : NSObject
+ (void)addSubview:(UIView *)view;
+ (void)show;
+ (void)hide;
#end
PopupView.m:
#import "PopupView.h"
#implementation PopupView
+(UIView *)sharedView {
static UIView *_view = nil;
static dispatch_once_t onceToken = 0;
dispatch_once(&onceToken, ^{
_view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.width, [[UIScreen mainScreen] bounds].size.height)];
_view.backgroundColor = [UIColor blackColor];
_view.alpha = 0.6;
UITapGestureRecognizer *singleFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(hide)];
[_view addGestureRecognizer:singleFingerTap];
});
return _view;
}
+ (void)addSubview:(UIView *)view {
UIView *v = [PopupView sharedView];
[v addSubview:view];
}
+ (void)show {
UIView *v = [PopupView sharedView];
v.frame = CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.width, [[UIScreen mainScreen] bounds].size.height);
id<UIApplicationDelegate> appDelegate = [[UIApplication sharedApplication] delegate];
[[appDelegate window] addSubview:v];
}
+ (void)hide {
UIView *v = [PopupView sharedView];
[v removeFromSuperview];
[v.subviews makeObjectsPerformSelector: #selector(removeFromSuperview)];
}
Usage:
UILabel *l = [[UILabel alloc] initWithFrame:CGRectMake(50, 50, 200, 21)];
l.text = #"Hello";
l.textColor = [UIColor whiteColor];
[PopupView addSubview:l];
[PopupView show];
Or course instead of a label you can put any view(s) you want.