大约有 40,000 项符合查询结果（耗时：0.0669秒） [XML]
How to calculate dp from pixels in android programmatically [duplicate]
...
float ht_px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, ht, getResources().getDisplayMetrics());
float wt_px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, wt, getResources().getDisplayMetrics());
...
how to listen to N channels? (dynamic select statement)
...o a shared "aggregate" channel. For example:
agg := make(chan string)
for _, ch := range chans {
go func(c chan string) {
for msg := range c {
agg <- msg
}
}(ch)
}
select {
case msg <- agg:
fmt.Println("received ", msg)
}
If you need to know which channel the message ...
Prevent the keyboard from displaying on activity start
...wing may work
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
I've used it for this sort of thing before.
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f...
Sending POST data in Android
...onn.getResponseCode();
if (responseCode == HttpsURLConnection.HTTP_OK) {
String line;
BufferedReader br=new BufferedReader(new InputStreamReader(conn.getInputStream()));
while ((line=br.readLine()) != null) {
response+=line;
}
...
Is it .yaml or .yml?
...
Wikipedia's Category:Filename_extensions page lists entries for .a, .o and .z. Somehow, it missed .c and .h. These single-letter extensions help us see that extensions should be as long as necessary, but no longer (to half-quote A. Einstein).
...
'python' is not recognized as an internal or external command [duplicate]
... variables are set correctly. Any reason why?
– alpha_989
Sep 30 '17 at 23:40
superb! But, I think in my organization ...
How do I detect if Python is running as a 64-bit application? [duplicate]
... at least since Py2.3: struct.calcsize('P') == 8. Or ctypes.sizeof(ctypes.c_void_p) == 8. There can be builds with gcc option -mx32 or so, which are 64bit apps, but use 32bit pointers as default. 'sys.maxsize = ssize_t' may not strictly represent the C pointer size (its usually 2**31 - 1 anyway), th...
'setInterval' vs 'setTimeout' [duplicate]
... edited May 19 '14 at 8:48
gion_13
38.3k99 gold badges9090 silver badges101101 bronze badges
answered Apr 23 '10 at 6:39
...
Get the current displaying UIViewController on the screen in AppDelegate.m
...ViewController)
}
public static func getVisibleViewControllerFrom(_ vc: UIViewController?) -> UIViewController? {
if let nc = vc as? UINavigationController {
return UIWindow.getVisibleViewControllerFrom(nc.visibleViewController)
} else if let tc = vc as? UITab...
switch / pattern matching idea
...Car as car when car.EngineType = Gasoline -> 200 + car.Doors * 20
| _ -> failwith "blah"
assuming you'd defined a class hierarchy along the lines of
type Vehicle() = class end
type Motorcycle(cyl : int) =
inherit Vehicle()
member this.Cylinders = cyl
type Bicycle() = inherit ...