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How to create a drop-down list?
...eated one.
dropdown.setAdapter(adapter);
Notes:
You can use a setOnItemSelectedListener with this.
You can add a strings list from xml
There is an appCompat version of this view.
More information:
This is the basics but there is more to be self taught with experimentation.
https://developer....
Insert a commit before the root commit in Git?
...s empty commit
We’ll put the new empty commit on a temporary branch newroot for convenience.
1. Create a new empty commit
There is a number of ways you can do this.
Using just plumbing
The cleanest approach is to use Git’s plumbing to just create a commit directly, which avoids touching th...
How do I convert this list of dictionaries to a csv file?
...
set().union(*(d.keys() for d in mylist)) to get all the keys in the list (if you have some which don't have all the keys.)
– Julian Camilleri
Nov 13 '18 at 10:00
...
How do you turn off version control in android studio?
...llowing:
Android Studio > Preferences...
In the Preferences window, select Version Control and under Directory choose VCS dropdown to be <none>
Don't forget to click "Apply" in the general Preferences buttons at the bottom.
...
Wi-Fi 是什么的缩写 - 程序人生、谈天论地 - 清泛IT论坛，有思想、有深度
...的标准，也就是我们常见到的 802.11 系列，但却没有规定如何去测试产品是否符合标准，导致 802.11 产品间的互通频频出现问题，而联盟的成立就是为了填补这一空缺。联盟还将推广符合 802.11 标准的无线网络技术作为己任，因此...
为什么大数据也不能帮你摆脱单身狗的命运？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...单身狗的命运？】今天是虐狗节，去年看过一篇文章，讲如何通过大数据找到你的另一半(见参考资料)！里面通过理性建模和精准定位找到合适伴侣，不过大数据真有这么神奇么？我就随便聊聊约会App算法和现实中策略。今天是...
How to change credentials for SVN repository in Eclipse?
...clipse. Another developer added an SVN repository with his credentials and selected 'Save password'. Now every time I do anything with SVN his cached credentials are used. How can I change them to mine?
...
What should every developer know about databases? [closed]
...fluence that choice;
The concept of coverage (why you shouldn't just write SELECT *);
The difference between a clustered and non-clustered index;
Why more/bigger indexes are not necessarily better;
Why you should try to avoid wrapping filter columns in functions.
Designers should also be aware of ...
Why unsigned integer is not available in PostgreSQL?
...< 65536);
Here is what psql gives when I try to abuse the type.
DS1=# select (346346 :: uint2);
ERROR: value for domain uint2 violates check constraint "uint2_check"
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Using Node.js only vs. using Node.js with Apache/Nginx
...pared to using a proper static file web server (Node may also be faster in select scenarios, but this is unlikely to be the norm). On top of files serving more efficiently, you won't have to worry about handling eTags or cache control headers the way you would if you were servings things out of Node...