大约有 18,500 项符合查询结果（耗时：0.0219秒） [XML]
how to show progress bar(circle) in an activity having a listview before loading the listview with d
...rminateVisibility(true);
And after you are done displaying the list, to hide it.
setProgressBarIndeterminateVisibility(false);
IN THE LAYOUT (The XML)
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:orien...
SQL Joins Vs SQL Subqueries (Performance)?
...vary. The speed will depend a lot on indexes (do you have indexes on both ID columns? That will help a lot...) among other things.
The only REAL way to tell with 100% certainty which is faster is to turn on performance tracking (IO Statistics is especially useful) and run them both. Make sure to...
Is it possible to rename a maven jar-with-dependencies?
...property to give the jar the name you want, and specify that appendAssemblyId should be false to avoid the "jar-with-dependencies" suffix.
The configuration below will output a jar called "test.jar"
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.2-be...
How can I exclude some folders from my Eclipse project?
...
Filters will hide resources from view, but they're still in the project.
If you create a project in another location you can create linked resources to the folders you want to include in your project.
For reference I posted another answer...
postgresql: INSERT INTO … (SELECT * …)
...te database and fetch result. For example:
psql dbtest
CREATE TABLE tblB (id serial, time integer);
INSERT INTO tblB (time) VALUES (5000), (2000);
psql postgres
CREATE TABLE tblA (id serial, time integer);
INSERT INTO tblA
SELECT id, time
FROM dblink('dbname=dbtest', 'SELECT id, time FRO...
find() with nil when there are no records
...
Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
share
|
improve this answer
|
follow
...
How to round an image with Glide library?
So, anybody know how to display an image with rounded corners with Glide?
I am loading an image with Glide, but I don't know how to pass rounded params to this library.
...
Parse query string into an array
...the second parameter to have the data put in an array instead of into individual variables.
$get_string = "pg_id=2&parent_id=2&document&video";
parse_str($get_string, $get_array);
print_r($get_array);
share
...
Making TextView scrollable on Android
...
You don't need to use a ScrollView actually.
Just set the
android:scrollbars = "vertical"
properties of your TextView in your layout's xml file.
Then use:
yourTextView.setMovementMethod(new ScrollingMovementMethod());
in your code.
Bingo, it scrolls!
...
LINQ: Distinct values
...")
.Select(element => new {
id = (int) element.Attribute("id"),
category = (int) element.Attribute("cat") })
.Distinct();
If you're trying to get a distinct set of values of a "larger" type, but only looking...