大约有 47,000 项符合查询结果（耗时：0.0772秒） [XML]
Android Fragment no view found for ID?
...e getChildFragmentManager()
instead of getFragmentManager()
when calling from a fragment. If you are calling the method from an activity, then use getFragmentManager().
That will solve the problem.
share
|
...
Accessing bash command line args $@ vs $*
...
A nice handy overview table from the Bash Hackers Wiki:
where c in the third row is the first character of $IFS, the Internal Field Separator, a shell variable.
If the arguments are to be stored in a script variable and the arguments are expected to...
Using [UIColor colorWithRed:green:blue:alpha:] doesn't work with UITableView seperatorColor?
...y simple UIColor category that does the messy looking division by itself: (from http://github.com/Jon889/JPGeneral)
//.h file
@interface UIColor (JPExtras)
+ (UIColor *)colorWithR:(CGFloat)red G:(CGFloat)green B:(CGFloat)blue A:(CGFloat)alpha;
@end
//.m file
@implementation UIColor (JPExtras)
+ (U...
When to use std::begin and std::end instead of container specific versions [duplicate]
...e fact that it works on arrays is the reason I would always use std::begin from template.
– mark
Dec 9 '11 at 22:03
8
...
How do I remove blank elements from an array?
I have the following array
20 Answers
20
...
What are the differences between a multidimensional array and an array of arrays in C#?
...sembly with an IL disassembler you will see that the storage and retrieval from jagged (or single dimensional) arrays are simple IL instructions while the same operations for multidimensional arrays are method invocations which are always slower.
Consider the following methods:
static void SetElem...
Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
...ne. it over complicates things, and breaks everything. All to save people from adapting hard-coded "System32" to "System64" when converting to 64bit. Idiocy
– Armand
Sep 17 '14 at 0:18
...
Convert a string representation of a hex dump to a byte array using Java?
I am looking for a way to convert a long string (from a dump), that represents hex values into a byte array.
24 Answers
...
Why can't yield return appear inside a try block with a catch?
...tered:
Attributes not being able to be generic
Inability for X to derive from X.Y (a nested class in X)
Iterator blocks using public fields in the generated classes
In each of these cases it would be possible to gain a little bit more freedom, at the cost of extra complexity in the compiler. The...
“Collection was mutated while being enumerated” on executeFetchRequest
...
OK, I think I've solved my problem and I must thank this blog post from Fred McCann's :
http://www.duckrowing.com/2010/03/11/using-core-data-on-multiple-threads/
The problem seems to come from the fact that I instantiate my background moc on the main thread instead of the background thread...