大约有 25,000 项符合查询结果（耗时：0.0287秒） [XML]
getting the screen density programmatically in android?
... screen size. So the metrics.densityDpi property will be one of the DENSITY_xxx constants (120, 160, 213, 240, 320, 480 or 640 dpi).
If you need the actual lcd pixel density (perhaps for an OpenGL app) you can get it from the metrics.xdpi and metrics.ydpi properties for horizontal and vertical dens...
Scala Doubles, and Precision
...igDecimal:
BigDecimal(1.23456789).setScale(2, BigDecimal.RoundingMode.HALF_UP).toDouble
There are a number of other rounding modes, which unfortunately aren't very well documented at present (although their Java equivalents are).
...
How can I delete multiple lines in vi?
...You can delete multiple(range) lines if you know the line numbers:
:[start_line_no],[end_line_no]d
Note: d stands for delete
where,
start_line_no is the beginning line no you want to delete and
end_line_no is the ending line no you want to delete.
The lines between the start and end, includin...
kill -3 to get java thread dump
...'s stdout is placed. If you have a Tomcat server, this will be the catalina_(date).out file.
share
|
improve this answer
|
follow
|
...
How many Activities vs Fragments?
...lication component that provides a screen with which users can interact in order to do something, ". I do see an error in my original statement, I didn't mean to put "are another screen",
– EFlisio
May 24 '15 at 17:10
...
Java / Android - How to print out a full stack trace?
... yup you're right @PhilippReichart. Here's the code for Log.d on AOSP 4.2.2_r1
– Ehtesh Choudhury
Apr 25 '13 at 17:06
...
How to remove the border highlight on an input text element
.../tabbed into), many browsers (at least Safari and Chrome) will put a blue border around it.
17 Answers
...
Fastest check if row exists in PostgreSQL
...ex on contact, it can usually reduce time cost to 1 ms.
CREATE INDEX index_contact on contact(id);
share
|
improve this answer
|
follow
|
...
How do I use $scope.$watch and $scope.$apply in AngularJS?
...
You need to be aware about how AngularJS works in order to understand it.
Digest cycle and $scope
First and foremost, AngularJS defines a concept of a so-called digest cycle. This cycle can be considered as a loop, during which AngularJS checks if there are any changes to ...
Running V8 Javascript Engine Standalone
...
and if your on x86_64 do a: 'scons arch=x64' until its fixed in trunk code.google.com/p/v8/issues/detail?id=429#c1
– EdH
Sep 19 '11 at 3:15
...