大约有 44,000 项符合查询结果（耗时：0.0654秒） [XML]
How to correctly save instance state of Fragments in back stack?
.... In the fragment, save instance state by overriding onSaveInstanceState() and restore in onActivityCreated():
class MyFragment extends Fragment {
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
...
i...
Preserve colouring after piping grep to grep
... You can override this behavior with grep --color=always
The correct command line would be
grep --color=always WORD * | grep -v AVOID
This is pretty verbose, alternatively you can just add the line
alias cgrep="grep --color=always"
to your .bashrc for example and use cgrep as the colored gr...
Determine device (iPhone, iPod Touch) with iOS
... the device running an application. I want to distinguish between iPhone and iPod Touch , if possible.
31 Answers
...
NSRange to Range
...o one simple solution is to convert String to NSString first. The delegate and replacement method names are slightly different in Swift 3 and 2, so depending on which Swift you're using:
Swift 3.0
func textField(_ textField: UITextField,
shouldChangeCharactersIn range: NSRange,
...
What does the “@” symbol mean in reference to lists in Haskell?
... = Tree a [Tree a], then t@(Tree _ kids) gives you access to both the tree and its children.
share
|
improve this answer
|
follow
|
...
Was PreferenceFragment intentionally excluded from the compatibility package?
I'm looking to write preferences that can be applied to both 3.0 and pre-3.0 devices. Discovering that PreferenceActivity contains deprecated methods (although these are used in the accompanying sample code), I looked at PreferenceFragement and the compatibility package to solve my woes.
...
How can I get name of element with jQuery?
...his).attr('name'); on a class selector $('.jobSelect').change(function() { and I didn't encounter problems.
– Ömer An
Dec 28 '19 at 8:57
add a comment
|
...
Where should virtualenvs be created?
...ich keeps all virtualenvs in the same place (the ~/.virtualenvs directory) and allows shortcuts for creating and keeping them there. For example, you might do:
mkvirtualenv djangoproject
and then later:
workon djangoproject
It's probably a bad idea to keep the virtualenv directory in the proje...
How to return a result (startActivityForResult) from a TabHost Activity?
...
Oh, god! After spending several hours and downloading the Android sources, I have finally come to a solution.
If you look at the Activity class, you will see, that finish() method only sends back the result if there is a mParent property set to null. Otherwise t...
Why would I use Scala/Lift over Java/Spring? [closed]
...pen but I have been looking at Scala/Lift as an alternative to Java/Spring and I wonder what are the real advantages that Scala/Lift has over it. From my perspective and experience, Java Annotations and Spring really minimizes the amount of coding that you have to do for an application. Does Scala/L...