大约有 47,000 项符合查询结果（耗时：0.0942秒） [XML]
How to implement an android:background that doesn't stretch?
...its in height and keeps aspect ratio
android:contentDescription="@string/image"
android:src="@drawable/your_image" />
<LinearLayout
android:id="@+id/main_root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android...
How do I parse JSON with Objective-C?
...who
// knows how your third-party library intends to react?
if(NSClassFromString(@"NSJSONSerialization"))
{
NSError *error = nil;
id object = [NSJSONSerialization
JSONObjectWithData:returnedData
options:0
error:&error];
...
nodeValue vs innerHTML and textContent. How to choose?
...word story right here.</p>
So, that second example parses the string I assign to the DOM element's innerHTML property as HTML.
This is awesome, and a big security vulnerability : )
(look up XSS if you want to know about security for this)
...
Is there documentation for the Rails column types?
...
Guidelines built from personal experience:
String:
Limited to 255 characters (depending on DBMS)
Use for short text fields (names, emails, etc)
Text:
Unlimited length (depending on DBMS)
Use for comments, blog posts, etc. General rule of thumb: if it's captured v...
How to swap two variables in JavaScript
...t; the values are auto-cast to int32s. This means it can work with numeric strings, Booleans (0/1), null (0), and empty arrays/objects (0). Though the original type isn't preserved, so affected Booleans wouldn't work with typeof a == 'boolean' or a === false, for example. Real numbers work, except t...
QLabel: set color of text and background
...ler.
enum {msg_info, msg_notify, msg_alert};
:
:
void bits::sendMessage(QString& line, int level)
{
QTextCursor cursor = ui->messages->textCursor();
QString alertHtml = "<font color=\"DeepPink\">";
QString notifyHtml = "<font color=\"Lime\">";
QString infoHtm...
How can I get the executing assembly version?
...y(typeof(MyWebProject.Mvc.Controllers.HomeController)).GetName().Version.ToString(2))
– James McCormack
Mar 6 '14 at 15:19
...
ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
...
Answer for BigDecimal throws ArithmeticException
public static void main(String[] args) {
int age = 30;
BigDecimal retireMentFund = new BigDecimal("10000.00");
retireMentFund.setScale(2,BigDecimal.ROUND_HALF_UP);
BigDecimal yearsInRetirement = new BigDecimal("20.00"...
Getting command-line password input in Python
...ompt is on the stderr (you will also need import sys): getpass.getpass(<string>,sys.stderr)
– Philip Kearns
May 28 '19 at 9:29
...
public friend swap member function
...ction is just noise. A member function allows for e.g. std::vector<std::string>().swap(someVecWithData);, which isn't possible with a swap free function because both arguments are passed by non-const reference.
– ildjarn
Apr 18 '11 at 1:34
...