大约有 6,600 项符合查询结果（耗时：0.0307秒） [XML]
How to detect when WIFI Connection has been established in Android?
...lse {
// wifi connection was lost
}
}
}
For more info, see the documentation for BroadcastReceiver and WifiManager
Of course you should check whether the device is already connected to WiFi before this.
EDIT:
Thanks to ban-geoengineering, here's a method to check whether ...
How to export JavaScript array info to csv (on client side)?
...do this using JavaScript. I am using Dojo 1.8 and have all the attribute info in array, which looks like this:
28 Answers...
How to do a JUnit assert on a message in a logger
...pender(appender);
try {
Logger.getLogger(MyTest.class).info("Test");
}
finally {
logger.removeAppender(appender);
}
final List<LoggingEvent> log = appender.getLog();
final LoggingEvent firstLogEntry = log.get(0);
...
Adding data attribute to DOM
...
Use the .data() method:
$('div').data('info', '222');
Note that this doesn't create an actual data-info attribute. If you need to create the attribute, use .attr():
$('div').attr('data-info', '222');
...
In Python, how do I read the exif data for an image?
... It doesn't work for me, I can see only the exif data using the .info method in binary
– G M
Mar 16 at 20:23
add a comment
|
...
How to implement the --verbose or -v option into a script?
....basicConfig(format="%(levelname)s: %(message)s", level=log.DEBUG)
log.info("Verbose output.")
else:
log.basicConfig(format="%(levelname)s: %(message)s")
log.info("This should be verbose.")
log.warning("This is a warning.")
log.error("This is an error.")
All of these automatically go to s...
How to print register values in GDB?
...
info registers shows all the registers; info registers eax shows just the register eax. The command can be abbreviated as i r
share
|
...
LINQ with groupby and count
...t() on that Grouping to get the subtotal.
foreach(var line in data.GroupBy(info => info.metric)
.Select(group => new {
Metric = group.Key,
Count = group.Count()
})
...
Measure elapsed time in Swift
...
Use clock, ProcessInfo.systemUptime, or DispatchTime for simple start-up time.
There are, as far as I know, at least ten ways to measure elapsed time:
Monotonic Clock based:
ProcessInfo.systemUptime.
mach_absolute_time with mach_timebase...
How do I log a Python error with debug information?
...
The exception method simply calls error(message, exc_info=1). As soon as you pass exc_info to any of the logging methods from an exception context, you will get a traceback.
– Helmut Grohne
Jun 25 '13 at 18:46
...