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How to make a Navigation Bar and Status Bar blurred (UIBlurEffect)? iOS, Swift 3

匿名 (未验证) 提交于 2019-12-03 08:33:39
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: How to make the Navigation Bar and Status Bar blurred (UIBlurEffect)? When I'm by clicking on the image to scroll down (Scroll View) to other pictures, this picture (in this case with a white machine) is simply lost under the Navigation Bar, and it is necessary that this figure would be visible under the Navigation Bar with effect UIBlurEffect. NO UIBlurEffect I have tried so, but did not work: func addBlurEffect() { // Add blur view let bounds = self.navigationController?.navigationBar.bounds as CGRect! let visualEffectView =

Limit width size of Bar chart

匿名 (未验证) 提交于 2019-12-03 08:30:34
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I created simple example of Bar Chart but I notices that size of the bar fits the chart. How I can limit the size? Foe example I would like to limit the width size. 回答1: As we already discussed here , to set a maximum width on every bar, we have to change either barGap or categoryGap accordingly, every time the scene or the chart are resized. The only difference from the refered question, is we have to resize the chart the first time is displayed. Based on the same code, let's create the setMaxBarWidth() method: private final NumberAxis

bash之set命令

走远了吗. 提交于 2019-12-03 08:24:14
set 命令是 Bash 脚本的重要环节,却常常被忽视,导致脚本的安全性和可维护性出问题。本文介绍它的基本用法,让你可以更安心地使用 Bash 脚本。 一、简介 我们知道,Bash 执行脚本的时候,会创建一个新的 Shell。 $ bash script.sh 上面代码中, script.sh 是在一个新的 Shell 里面执行。这个 Shell 就是脚本的执行环境,Bash 默认给定了这个环境的各种参数。 set 命令用来修改 Shell 环境的运行参数,也就是可以定制环境。一共有十几个参数可以定制, 官方手册 有完整清单,本文介绍其中最常用的四个。 顺便提一下,如果命令行下不带任何参数,直接运行 set ,会显示所有的环境变量和 Shell 函数。 $ set 二、set -u 执行脚本的时候,如果遇到不存在的变量,Bash 默认忽略它。 #!/usr/bin/env bash echo $a echo bar 上面代码中, $a 是一个不存在的变量。执行结果如下。 $ bash script.sh bar 可以看到, echo $a 输出了一个空行,Bash 忽略了不存在的 $a ,然后继续执行 echo bar 。大多数情况下,这不是开发者想要的行为,遇到变量不存在,脚本应该报错,而不是一声不响地往下执行。 set -u 就用来改变这种行为。脚本在头部加上它

Ajax form upload progress bar

匿名 (未验证) 提交于 2019-12-03 07:50:05
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Trying to make a progress bar for a form upload (old HTML4 form upload, not new HTML5 API). The progress actually tracks additional work being done after the file has moved. The way it has been designed is that the stream stays opened until after the additional work is done, and then the server-side method finally returns, which closes the stream. I'm having some issues that may be specific to Chrome. I do also have a working implementation, but I'm hoping to get something "better". For anybody who is likely to ask for code: it's

tab bar icon selected image

匿名 (未验证) 提交于 2019-12-03 07:50:05
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: How to customize the selected image/icon on the tab bar? Is this possible? Pls advise. Thanks 回答1: Its possible without adding any subView. In the class where you define the tab bar set the property of the tabBarItem to ->> UITabBarItem *tabBarItem1 = [[self.tabBar.tabBar items] objectAtIndex:0]; [tabBarItem1 setFinishedSelectedImage:[UIImage imageNamed:@"campaigns_hover.png"] withFinishedUnselectedImage:[UIImage imageNamed:@"campaigns.png"]]; Its a property of tabBarItem and u can change the default blue image to a custom image. campaigns

Pass data from tableview to tab bar view controller in Swift.

匿名 (未验证) 提交于 2019-12-03 07:50:05
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: At my storyboard I have a part where a view controller with a table view is placed before a tab bar controller. This tab bar has two view controllers. Earlier I used the table view already, and when I clicked on one cell I passed to another Viewcontroller which loaded another view controller with table and cells with the id from the pushed cell from the first table. Like this: The tableview controller, prepare for segue: if segue.identifier == "overviewSegue" { var caseViewController: CaseViewController = segue.destinationViewController as

Xcode: Getting rid of black bar when hiding navigation bar

匿名 (未验证) 提交于 2019-12-03 07:36:14
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Scenario I have an app that allows users to scroll up on a UITableView to view posts. When they scroll up the navigation bar will hide. I use the code from the following SO post... Imitate iOS 7 Facebook hide/show expanding/contracting Navigation Bar Problem When I tried the first answer on there it worked the first time I used it, perfectly. After I got it to where it was working I tried to get my Tab Bar to drop down as well. When I fidgeted around with my code I must have fudged something up. Because now when I run the same code, I get

Swift 4 - iOS 11 Search bar scope won't appear as it should

匿名 (未验证) 提交于 2019-12-03 07:36:14
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have an app which works nice and without any problems on iOS 10 but with iOS 11 and Xcode Beta 5, I have this strange problem with search bar scope where the scope bar seems like it was cut from the bottom. (It was the same with all versions of Xcode beta and iOS 11) I would really really be glad if someone can put me in the right direction. Thanks Above you can see what I see when I press the hamburger menu button. No problem here.. searchbar also has a scopebar which shows up when clicked on.I did not set it to show up programatically

In Selenium Webdriver, ExpectedCondition.elementToBeClickable is not waiting until the progress bar disappears

匿名 (未验证) 提交于 2019-12-03 07:36:14
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: This question is similar to the one below: i.e. How to wait till Progress bar disappears. How to wait dynamically until the progress bar to load completely in Selenium Webdriver? Mine is bit different. Here when the progress bar appears, all the elements are disabled. So am using explicit wait but still getting the Exception. Scenario: In the Signup Page, , after providing all the details, the script clicks on "Create Account" button. At this instant, a circular progress bar appears and it persists for 1 or 2 seconds, if the

Angular 2 HTTP Progress bar

匿名 (未验证) 提交于 2019-12-03 03:10:03
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Is there currently a way within Angular 2 to retrieve the progress (i.e. percentage done) of an ajax call, using the angular2/http module? I use the following code to make my HTTP calls: let body = JSON.stringify(params); let headers = new Headers({ 'Content-Type': 'application/json' }); let options = new RequestOptions({ headers: headers }); this.http.post(url, body, options) .timeout(10000, new Error('Timeout exceeded during login')) .toPromise() .then((res) => { ... }).catch((err) => { ... }); The goal is to write a synchronisation system