大约有 22,000 项符合查询结果（耗时：0.0260秒） [XML]
Clicking the back button twice to exit an activity
... }
this.doubleBackToExitPressedOnce = true;
Toast.makeText(this, R.string.exit_press_back_twice_message, Toast.LENGTH_SHORT).show();
}
And it just works exactly as I want. Including the reset of the state whenever the activity is resumed.
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Inspect hovered element in Chrome?
...t is far and beyond better than the rest. This is simple and easy without extra scripts.
– Alexander Dixon
Jan 6 '17 at 20:06
2
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Hidden Features of SQL Server
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Connection String extras:
MultipleActiveResultSets=true;
This makes ADO.Net 2.0 and above read multiple, forward-only, read-only results sets on a single database connection, which can improve performance if you're doing a lot of read...
Count Rows in Doctrine QueryBuilder
...3600)
->getSingleScalarResult();
}
In some simple cases using EXTRA_LAZY entity relations is good
http://doctrine-orm.readthedocs.org/projects/doctrine-orm/en/latest/tutorials/extra-lazy-associations.html
share
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Hibernate SessionFactory vs. JPA EntityManagerFactory
...lback method annotations like @PrePersist, @PostPersist,@PreUpdate with no extra configuration.
Using similar callbacks while using SessionFactory will require extra efforts.
Related Hibernate docs can be found here and here.
Related SOF Question and Spring Forum discussion
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#pragma once vs include guards? [duplicate]
...inks, network filesystems, and even name collision --try with a file named string.h or something like that--). Not taking into account speed, you could have a script that substituted any, say, %INCLUDE_GUARD% in a file for an automatically-managed guard symbol; you would write headers as header.hpp....
How do I open an old MVC project in Visual Studio 2012 or Visual Studio 2013?
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.csproj : error : The operation could not be completed. Invalid class string
I can't find any citations for the real cause of that, but I was able to get VS2012RTM to load the project successfully by changing the <ProjectGuid>. (No idea how this happened - its part of a large solution ...
Is there a 'foreach' function in Python 3?
...nt:
// PHP:
foreach ($array as $val) {
print($val);
}
// C#
foreach (String val in array) {
console.writeline(val);
}
// Python
for val in array:
print(val)
So, yes, there is a "foreach" in python. It's called "for".
What you're describing is an "array map" function. This could be ...
MemoryCache does not obey memory limits in configuration
...s intended, tested out with a generator which fills up cache with loads of strings of 1000 characters. Although, adding up what should be like 100MB to the cache adds up actually 200 - 300MB to the cache, which I found quite strange. Maybe some overheards I'm not counting.
– K...
Best way to add Activity to an Android project in Eclipse?
... a "changes to be performed" list. In this list you can see manifest file, strings.xml etc already checked. So, unless you uncheck them, it is added automatically
– berkuqo
Aug 16 '12 at 8:55
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