tabbar

Creating a Custom Tab Bar

*爱你&永不变心* 提交于 2019-12-10 11:07:13
问题 I want to create a custom tab bar at the top. Just like 9gag. Do you know a place where i can learn how to do it? (documentiation or video tutorial) Thanks 9gag custom tab bar 回答1: A work around which I implemented. Create a view to have the custom tab bar. let tabView = UIView(frame: CGRect(x: 0, y: 0, width: self.view.frame.size.width, height: 60)) tabView.backgroundColor = UIColor(red: 45/255, green: 58/255, blue: 114/255, alpha: 1) self.view.addSubview(tabView) Depending on the number of

iOS tabbar 选择图片默认为蓝色

隐身守侯 提交于 2019-12-10 03:31:47
用storyboard设计TabBar相当的快捷、方便。 但是在属性板栗设置TabBarItem背景图片的时候, Selected Image设置的图片颜色明明是红色,但是实际运行后却变为蓝色。 在StoryBoard中搞了很久也没解决,后来查到是要在代码中更改。 UITabItem的头文件,发现下面的内容: /* The unselected image is autogenerated from the image argument. The selected image is autogenerated from the selectedImage if provided and the image argument otherwise. To prevent system coloring, provide images with UIImageRenderingModeAlwaysOriginal (see UIImage.h) */ - (instancetype)initWithTitle:(NSString *)title image:(UIImage *)image tag:(NSInteger)tag; - (instancetype)initWithTitle:(NSString *)title image:(UIImage *)image

How to segue from UIButton to a Tab Bar Item?

血红的双手。 提交于 2019-12-09 23:43:30
问题 I have an app with a tab bar, which contains 5 tabs. I decided to have a "Home screen" instead of opening the app directly in the first tab. My home screen will contain a welcome message AND 5 buttons to segue directly to the wanted tab. Example: the 4th button will go to the 4th tab. After clicking one button, the home screen should never be seen again. The navigation mode will by the tab bar. My Home View Controller 5 buttons and a reference to the Tab Bar Controller, to pass the button

Passing data between Tabs using delegate not working

[亡魂溺海] 提交于 2019-12-08 07:34:12
问题 I want to pass data from second tab to first tab using delegates.But delegate method not triggered.here is the code (I m using storyboard) in SecondViewController.h #import <UIKit/UIKit.h> @class SecondViewController; @protocol SecondViewControllerDelegate <NSObject> -(void) sliderValueDidChanged: (SecondViewController *)controller data:(float) sliderValue; @end @interface SecondViewController : UIViewController{ __weak id<SecondViewControllerDelegate> delegate; } - (IBAction)sliderPressed:

android自定义tabbar,并带badgeview消息提示

Deadly 提交于 2019-12-07 20:09:21
最早的时候,我用的tab都是在屏幕底端的,后来慢慢的流行在屏幕顶端了,按照用户体验来说,顶部确实比底部好,不仅可以防止按到返回键或者Home等引起误操作,而且tab标题在头顶很显眼很醒目。 一开始朋友推荐使用viewpageindicator,这个可以在 github 上有例子,大家如果没什么特殊需求,基本可以满足要求。根据项目要求我就使用了viewpageindicator,后来项目要求有消息提示,就像ios的badge一样,因此就对viewpageindicator进行修改,改了之后,就出现了下图的情况 就是badge是有了,但是把原本的tab给破坏了,后来我按照viewpageindicator的方式自己写了个例子,加上badge也出现了这种情况,估计tabwidget不适合这种模式(也可能是我水平有限,高手们应该有办法),而且viewpageindicator比较负责,有那么多代码和样式,还得引入library,还得把原本的android-support-v4.jar给删除等等,从而会引起别的问题,虽然都能解决,但是觉得很麻烦,就打算自己再重写一个,tabbar不用tabwidget,而是自己自定义布局tabbar.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http:/

Android Get height of the visible layout programmatically

孤街醉人 提交于 2019-12-07 17:25:03
问题 I want to get the exact height of the visible layout programmatically as I shown in figure. I used Sherlock fragment activity as main activity which contain different fragments. I tried to get the height and width of the screen through Display and display matrix, but it give whole screen height and width.but i want to get only visible view of the child activity. please help me. thanks in advance. Main XML (of Tabbar) <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

flex 4 tabbar - disable tab

烂漫一生 提交于 2019-12-07 09:07:26
问题 is there a common way to disable a tab of a spark tabbar component in flex 4? with the mx tabnavigator component you can just disable the content corresponding to the tab and the tab is also disabled then. but doing this with the spark tab bar component disables just the content not the tab. here is my simple example: <mx:TabNavigator x="122" y="155" width="200" height="200"> <s:NavigatorContent label="Tab 1" width="100%" height="100%"> <s:Label text="Label1"/> </s:NavigatorContent> <s

Reload screen when data change - react native app

拜拜、爱过 提交于 2019-12-07 03:24:28
I have two tabbar : ListMusic | Favourite. When I add a song to favourite in tab ListMusic, how can I set listener for tab Favourite know that it need for reload to display new data. Thanks! You can set one prop state which will be set on each change of ListMusic and use that prop in Favourite as key in render() 's parent view component. So, whenever state changes it will re-render Favourite. Example: render() { const unconfirmedErrorMsgToken = this.props.unconfirmedErrorMsgToken; return ( <View key={this.state.ListMusicSuccess} > ... </View> ); } 来源: https://stackoverflow.com/questions

Are there any Tab Bar events for notifying when someone hides/shows the Tab Bar?

狂风中的少年 提交于 2019-12-07 02:54:30
问题 I have a Nav controller inside a custom subclass of Tab Bar controller that i created. I want to know from within the (custom) Tab Bar whenever one of the displayed controllers attempts to hide or show the Tab Bar. (for example when pushing a VC that has its hidesBottomBarWhenPushed=YES onto the Nac controller). In short i want to be notified of events hiding/showing the Tab Bar but could not find anything in Apple's reference. I tried looking at UITabBar, UITabBarDelegate, UITabBarController

LargeTitles UIScrollView does not support multiple observers implementing _scrollViewWillEndDraggingWithVelocity:targetContentOffset

那年仲夏 提交于 2019-12-07 02:51:04
问题 I have implemented large titles in my app with the following code: if #available(iOS 11.0, *) { navigationController?.navigationBar.prefersLargeTitles = true navigationItem.largeTitleDisplayMode = .always } else { // Fallback on earlier versions } } func scrollViewDidScroll(_ scrollView: UIScrollView) { if scrollView.contentOffset.y <= 0 { if #available(iOS 11.0, *) { self.navigationItem.largeTitleDisplayMode = .always } else { // Fallback on earlier versions } } else { if #available(iOS 11.0