大约有 30,000 项符合查询结果（耗时：0.0561秒） [XML]
Detecting when user has dismissed the soft keyboard
... Wait wait wait, I just looked at this a third time - shouldn't the super call be to onKeyPreIme? Or is there a particular reason for it not to be so?
– Erhannis
Jul 3 '14 at 0:55
...
Drawing text to with @font-face does not work at the first time
...
Drawing on canvas has to happen and return immediately when you call the fillText method. However, the browser has not yet loaded the font from the network, which is a background task. So it has to fall back to the font it does have available.
If you want to make sure the font is availab...
Android List Preferences: have summary as selected value?
...
You can use OnPreferenceChangeListener to dynamically change the summary. The problem is that it gets the selected value (from android:entryValues), not the caption (android:entries). In the following code I used toString(), but the proper solution is to find the caption f...
How to output loop.counter in python jinja template?
...
The counter variable inside the loop is called loop.index in jinja2.
>>> from jinja2 import Template
>>> s = "{% for element in elements %}{{loop.index}} {% endfor %}"
>>> Template(s).render(elements=["a", "b", "c", "d"])
1 2 3 4
See ...
Clicking the back button twice to exit an activity
...code uses System.currentTimeMillis(); to store the time onBackPressed() is called;
private static final int TIME_INTERVAL = 2000; // # milliseconds, desired time passed between two back presses.
private long mBackPressed;
@Override
public void onBackPressed()
{
if (mBackPressed + TIME_INTERVAL...
What does @: (at symbol colon) mean in a Makefile?
...
It can be useful in makefiles that call a lot of external programs, and where you want to use echo a lot to make it look nice, like this one
– dwcoder
Jul 17 '15 at 15:04
...
Difference between shared objects (.so), static libraries (.a), and DLL's (.so)?
...s and shared objects are just different terms for the same thing - Windows calls them DLLs, while on UNIX systems they're shared objects, with the general term - dynamically linked library - covering both (even the function to open a .so on UNIX is called dlopen() after 'dynamic library').
They are...
PendingIntent does not send Intent extras
...city starts RefreshService with a Intent which has a boolean extra called isNextWeek .
3 Answers
...
Difference between os.getenv and os.environ.get
...
See this related thread. Basically, os.environ is found on import, and os.getenv is a wrapper to os.environ.get, at least in CPython.
EDIT: To respond to a comment, in CPython, os.getenv is basically a shortcut to os.environ.get ; since os.environ is lo...
What is the entry point of swift code execution?
...
The entry point in a plain Swift module is the file in the module called main.swift. main.swift is the only file which is allowed to have expressions and statements at the top level (all other Swift files in the module can only contain declarations).
Cocoa Touch uses the @UIApplicationMain...