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Retrieve a Fragment from a ViewPager
...yItem() of your Fragment(State)PagerAdapter:
public class MyPagerAdapter em>x m>tends FragmentStatePagerAdapter {
SparseArray<Fragment> registeredFragments = new SparseArray<Fragment>();
public MyPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public i...
String concatenation: concat() vs “+” operator
...fference in semantics. If a is null, then a.concat(b) throws a NullPointerEm>x m>ception but a+=b will treat the original value of a as if it were null. Furthermore, the concat() method only accepts String values while the + operator will silently convert the argument to a String (using the toString() me...
Use of Finalize/Dispose method in C#
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The recommended IDisposable pattern is here. When programming a class that uses IDisposable, generally you should use two patterns:
When implementing a sealed class that doesn't use unmanaged resources, you simply implement a Dispos...
How to concatenate two MP4 files using FFmpeg?
...so they share the same codec and other parameters, then use the concat demum>x m>er to avoid re-encoding the other inputs).
ffmpeg -i opening.mkv -i episode.mkv -i ending.mkv \
-filter_complem>x m> "[0:v] [0:a] [1:v] [1:a] [2:v] [2:a]
concat=n=3:v=1:a=1 [v] [a]" \
-map ...
CSS selector for a checked radio button's label
..., with or without divs etc as long as the label follows the radio input.
Em>x m>ample:
input[type="radio"]:checked+label { font-weight: bold; }
<input id="rad1" type="radio" name="rad"/><label for="rad1">Radio 1</label>
<input id="rad2" type="radio" name="rad"/><label f...
Autoincrement VersionCode with gradle em>x m>tra properties
...ncrease the versionCode, but I would like to read the versionCode from an em>x m>ternal file and depending if it is the release flavor or the debug flavor increase the versionCode. I tried the em>x m>tra properties, but you can't save them, which means that nem>x m>t time I build it I'm getting the same versionCod...
App Inventor 2 CustomWebView 拓展：高级版Web浏览器，完美浏览现代Web前...
...，无法浏览带端口url的页面，这款拓展统统解决。
.aim>x m> 拓展下载：
cn.fun123.CustomWebView.aim>x m>
基础使用方法：
例如，使用此拓展访问 react 写的网页，效果如下：
而使用原生的Web浏览器则无法访问：
属性
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Cryptic “Script Error.” reported in Javascript in Chrome and Firefom>x m>
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The "Script error." happens in Firefom>x m>, Safari, and Chrome when an em>x m>ception violates the browser's same-origin policy - i.e. when the error occurs in a script that's hosted on a domain other than the domain of the current page.
This behavior is intentional, to...
How do I update a GitHub forked repository?
I recently forked a project and applied several fim>x m>es. I then created a pull request which was then accepted.
21 Answers
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What is an uninterruptible process?
Sometimes whenever I write a program in Linum>x m> and it crashes due to a bug of some sort, it will become an uninterruptible process and continue running forever until I restart my computer (even if I log out). My questions are:
...