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How can you make a custom keyboard in Android?
I want to make a custom keyboard. I don't know how to do it using XML and Java. The following picture is a model of the keyboard I want to make. It only needs numbers.
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How can I find out the total physical memory (RAM) of my linux box suitable to be parsed by a shell
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If you're interested in the physical RAM, use the command dmidecode. It gives you a lot more information than just that, but depending on your use case, you might also want to know if the 8G in the system come from 2x4GB sticks or 4x2GB sticks.
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how to prevent “directory already exists error” in a makefile when using mkdir
I need to generate a directory in my makefile and I would like to not get the "directory already exists error" over and over even though I can easily ignore it.
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Input placeholders for Internet Explorer
...s, one I saw was jQuery-html5-placeholder.
I tried the demo out with IE9, and it looks like it wraps your <input> with a span and overlays a label with the placeholder text.
<label>Text:
<span style="position: relative;">
<input id="placeholder1314588474481" name="text" ...
MIT官方已升级至2.71版本，几乎就是仅增加一个全新主题 - App Inventor 2 ...
2.71 版本主要更新内容：Changes between nb196 and nb197 (July 7, 2024)
This is a component release which includes bugfixes and improvements. It includes a new Android MIT AI2 Companion versions 2.71 (from Google Play) and 2.71u (directly downloaded from MIT App Inventor).
Features:
Ne...
Android. WebView and loadData
... "text/html; charset=UTF-8", null);
This works flawlessly, especially on Android 4.0, which apparently ignores character encoding inside HTML.
Tested on 2.3 and 4.0.3.
In fact, I have no idea about what other values besides "base64" does the last parameter take. Some Google examples put null in ...
Docker can't connect to docker daemon
...dd the user to the docker group.
sudo usermod -aG docker $(whoami)
Log out and log back in to ensure docker runs with correct permissions.
Start docker.
sudo service docker start
Mac OS X
As Dayel Ostraco says is necessary to add environments variables:
docker-machine start # Start virtual machi...
SQL join: selecting the last records in a one-to-many relationship
Suppose I have a table of customers and a table of purchases. Each purchase belongs to one customer. I want to get a list of all customers along with their last purchase in one SELECT statement. What is the best practice? Any advice on building indexes?
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When saving, how can you check if a field has changed?
... if you make changes to the object, save it, then makes additional changes and call save() on it AGAIN, it will still work correctly.
– philfreo
Mar 14 '12 at 22:57
17
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Disable sorting for a particular column in jQuery DataTables
...argets': [ -1 ], for second 'aTargets': [ 1 ], for third 'aTargets': [ 2 ] and so on.
– Lasang
Mar 20 '13 at 7:19
5
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