大约有 46,000 项符合查询结果（耗时：0.0560秒） [XML]
I want my android application to be only run in portrait mode?
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In the manifest, set this for all your activities:
<activity android:name=".YourActivity"
android:configChanges="orientation"
android:screenOrientation="portrait"/>
Let me explain:
With android:configChanges="orienta...
Why we should not use protected static in java
...ty close.
The only case I can see where you might use the two together is if you had an abstract class that was designed to be extended and the extending class could then modify the behavior using constants defined in the original. That sort of arrangement would most likely end up very messy though...
Regular expression to match a line that doesn't contain a word
...rep -v ). However, is it possible to match lines that do not contain a specific word, e.g. hede , using a regular expression?
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Bash: Syntax error: redirection unexpected
...s hash bang line? The default system shell in Ubuntu is dash, not bash, so if you have #!/bin/sh then your script will be using a different shell than you expect. Dash does not have the <<< redirection operator.
sha...
What characters do I need to escape in XML documents?
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If you use an appropriate class or library, they will do the escaping for you. Many XML issues are caused by string concatenation.
XML escape characters
There are only five:
" &quot;
' &apos;
< &lt;
&g...
Append value to empty vector in R?
...abits). ;-)
Note that vector <- c() isn't an empty vector; it's NULL. If you want an empty character vector, use vector <- character().
Pre-allocate the vector before looping
If you absolutely must use a for loop, you should pre-allocate the entire vector before the loop. This will be muc...
Android: Force EditText to remove focus? [duplicate]
I would like to be able to remove the focus from the EditText. For example if the Keyboard appears, and the user hides it with the back button, I would like the focus and the cursor to disappear. How can it be done?
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Gson - convert from Json to a typed ArrayList
...stom class JsonLog ? Basically, JsonLog is an interface implemented by different kinds of logs made by my Android app--SMS logs, call logs, data logs--and this ArrayList is a collection of all of them. I keep getting an error in line 6.
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VIM + Syntastic: how to disable the checker?
...icCheck instead.
For more, see :help syntastic-commands
On another note: if Syntastic is slow for you consider trying ale as an alternative. Unlike Syntastic it runs asynchronously, so even if it's slow it shouldn't hinder you.
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MySQL get row position in ORDER BY
...LE t
WHERE t.name = 'Beta'
...will give ties the same value. IE: If there are two values at second place, they'll both have a position of 2 when the first query will give a position of 2 to one of them, and 3 to the other...
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