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Does opacity:0 have exactly the same effect as visibility:hidden
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According to philnash's answer, elements with opacity:0 are still read by screen readers, while visible:hidden elements are not.
According to Chris Noe's answer, visibility has more options (such as collapse) and elements that are not visible no longer respond to clicks and cannot be tabbed to.
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“wait_fences: failed to receive reply: 10004003”?
...per viewDidAppear:]. You should not perform animations when you are not on screen ("will appear"). And the -viewDidAppear: docs explain that you must call super because they have their own things to do.
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Android ListView Divider
...xceptions for the "everything should be dip" rule. It'll be 1 pixel on all screens. Plus, 1px usually looks better on hdpi and above screens
"It's not 2012 anymore" edit: you may have to switch over to dp/dip starting at a certain screen density
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What is the difference between screenX/Y, clientX/Y and pageX/Y?
What is the difference between screenX / Y , clientX / Y and pageX / Y ?
7 Answers
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How to check if an activity is the last one in the activity stack for an application?
I want to know if user would return to the home screen if he exit the current activity.
10 Answers
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linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...BLES基础知识还不了解,建议先去看看.开始配置我们来配置一个filter表的防火墙.(1)查看本机关于IPTABLES的设置情况[root@tp ~]...如果你的IPTABLES基础知识还不了解,建议先去看看.
开始配置
我们来配置一个filter表的防火墙.
(1)查看本...
How can one display images side by side in a GitHub README.md?
...t as well. (Well, I can vouch at least that it works on their pull request screen.)
– Nate Cook
Dec 20 '17 at 1:27
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CALayer with transparent hole in it
...te this effect, I found it easiest to create an entire view overlaying the screen, then subtracting portions of the screen using layers and UIBezierPaths. For a Swift implementation:
// Create a view filling the screen.
let overlay = UIView(frame: CGRectMake(0, 0,
UIScreen.mainScreen().bounds....
乐视全员合伙人制的背后 - 资讯 - 清泛网 - 专注C/C++及内核技术
...变思维方式，会有无数个像我一样的人推动公司发展。靠一个人拉动，一个阶段是可以的，但如果要成为第一个千亿美元的公司，需要大家的力量。”贾跃亭说。
在他看来，一个正确的战略最重要的就是组织，合伙人制对乐视...
How to best display in Terminal a MySQL SELECT returning too many fields?
... F will quit less immediately, if the output already fits the screen. X is to prevent less from trying to clear the screen on exit. See the less man page.
– Daniel Schneller
Jun 10 '16 at 6:32
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