大约有 40,000 项符合查询结果（耗时：0.0685秒） [XML]
Difference between getContext() , getApplicationContext() , getBaseContext() and “this”
...hat is created around an existing Context using:
ContextWrapper wrapper = new ContextWrapper(context);
The benefit of using a ContextWrapper is that it lets you “modify behavior without changing the original Context”. For example, if you have an activity called myActivity then can create a Vi...
Check if a value is in an array (C#)
...rinter).Contains("Jupiter") which is more type-safe. The Linq approach was new in .NET 3.5.
– Jeppe Stig Nielsen
Nov 8 '16 at 13:01
|
show 1...
How to inherit constructors?
...
The most annoying one for me is custom exceptions - Sub New(), Sub New(Message As String), Sub New(Message As String, InnerEx as Exception), Sub New(Info As Serialization.SerializationInfo, Context As Serialization.StreamingContext)... Yawn `
– Basic
...
How do I convert Long to byte[] and back in java
...ly faster.
public static byte[] longToBytes(long l) {
byte[] result = new byte[8];
for (int i = 7; i >= 0; i--) {
result[i] = (byte)(l & 0xFF);
l >>= 8;
}
return result;
}
public static long bytesToLong(final byte[] bytes, final int offset) {
long r...
LINQ Select Distinct with Anonymous Types
...t; equals, Func<T,int> hashCode)
{
return items.Distinct(new DelegateComparer<T>(equals, hashCode));
}
public static IEnumerable<T> Distinct<T>(this IEnumerable<T> items,
Func<T, T, bool> equals)
{
return items.Distinct(...
Open directory dialog
...mind that it's in the System.Windows.Forms namespace.
using (var dialog = new System.Windows.Forms.FolderBrowserDialog())
{
System.Windows.Forms.DialogResult result = dialog.ShowDialog();
}
If you want the window to be modal over some WPF window, see the question How to use a FolderBrowserDia...
Flask-SQLAlchemy how to delete all rows in a single table
...ete() db.session.commit() and then if I do a db.session.add() again to add new records, the next record gets an id of 5. Since my table is now empty, I want my new records to now get an id starting from 1 again. How can I do this ?
– qre0ct
Oct 19 '16 at 19:16
...
Validate uniqueness of multiple columns
...l = function(e) {
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
...
Can not deserialize instance of java.util.ArrayList out of START_OBJECT token
...ol of the deserialization process:
Collection<COrder> readValues = new ObjectMapper().readValue(
jsonAsString, new TypeReference<Collection<COrder>>() { }
);
You would loose a bit of the convenience of not having to do that yourself, but you would easily sort out the proble...
Getting JavaScript object key list
...works correctly in old browsers and doesn't overwrite the functionality in newer browsers. Also see my answer below.
– Sandro
Dec 1 '14 at 11:07
...