本文介绍了在导航栏中添加自定义视图,如WhatsApp的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我要创建自定义导航栏,就像WhatsApp用来在应用程序中显示呼叫指示器一样,如下所示。
我已成功添加了类似上面的视图,但它没有响应,因为我无法检测到状态栏上的触摸。我只能触摸"触摸返回呼叫"下面的部分。代码如下所示。
@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];
我还尝试在状态栏上添加触摸,如下所示,但不起作用。
How do I detect touches on UIStatusBar/iPhone
导航栏也不会下降。我已尝试设置keyWindow
帧。但这也不管用。
推荐答案
UIStatusBar的优先级高于应用程序的窗口,所以您不会通过状态栏获得任何触摸事件。
若要通过状态栏获取触摸事件,您需要一个窗口级别高于UIStatusBar的窗口。
尝试以下代码:
#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
这篇关于在导航栏中添加自定义视图,如WhatsApp的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!