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Circular (or cyclic) imports in Python
...* from, if you attempt to access an element in the circular import, at the top level, so before the script completes its run, then you will have the same issue. For instance if you are setting a package global in one package from another, and they both include each other. I was doing this to crea...
How to get current foreground activity context in android?
...Context.ACTIVITY_SERVICE);
ComponentName cn = am.getRunningTasks(1).get(0).topActivity;
UPDATE 2018/10/03
getRunningTasks() is DEPRECATED. see the solutions below.
This method was deprecated in API level 21.
As of Build.VERSION_CODES.LOLLIPOP, this method is no longer available to third party app...
“android.view.WindowManager$BadTokenException: Unable to add window” on buider.show()
...ty because they make it
impossible for malicious applications to draw on top of the windows of
other applications. The window manager protects against this by
requiring applications to pass their application's window token as
part of each request to add or remove a window. If the tokens don'...
Android: How to handle right to left swipe gestures
...SwipeBottom();
} else {
onSwipeTop();
}
result = true;
}
} catch (Exception exception) {
exception.printStackTrace();
}
return result;
}
...
Why does `True == False is False` evaluate to False? [duplicate]
...ue)
3 LOAD_GLOBAL 1 (False)
6 DUP_TOP
7 ROT_THREE
8 COMPARE_OP 2 (==)
11 JUMP_IF_FALSE_OR_POP 21 <---------this step
14 LOAD_GLOBAL 1 (Fals...
UITableView load more when scrolling to bottom like Facebook application
...bottom
Here is the Swift version of Pedro Romão's answer. When the user stops scrolling it checks if it has reached the bottom.
func scrollViewDidEndDragging(scrollView: UIScrollView, willDecelerate decelerate: Bool) {
// UITableView only moves in one direction, y axis
let currentOffset ...
How can I list (ls) the 5 last modified files in a directory?
...
This ignores the Total at the top: ls -1t | head -n 6 | tail -n 5
– Ryan
Mar 28 '13 at 21:50
2
...
How to modify a text file?
...t goes out of scope... but other implementations don't, and CPython might stop doing it some day, so "with" is recommended)
– Jürgen A. Erhard
Jun 22 '13 at 11:16
add a comme...
Why is argc not a constant?
...n of) existing C code was an early goal of C++.
Some UNIX APIs, such as getopt, actually do manipulate argv[], so it can't be made const for that reason also.
(Aside: Interestingly, although getopt's prototype suggests it won't modify argv[] but may modify the strings pointed to, the Linux man p...
CDC:DrawText 多行显示文本（文本自动换行） - C++ UI - 清泛IT社区，为创新赋能！
//长文本自动换行
dc.DrawText(str, &rect, DT_LEFT | DT_TOP | DT_WORDBREAK | DT_EDITCONTROL, m_pfSongTi);
函数原型：
int DrawText(
HDC hDC, // handle to DC
LPCTSTR lpString, // text to draw
int nCount,...