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How to clear the canvas for redrawing
... images on the canvas I'm now trying to remove images and compositing. How do I do this?
23 Answers
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How to produce a range with step n in bash? (generate a sequence of numbers with increments)
...
I'd do
for i in `seq 0 2 10`; do echo $i; done
(though of course seq 0 2 10 will produce the same output on its own).
Note that seq allows floating-point numbers (e.g., seq .5 .25 3.5) but bash's brace expansion only allows i...
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android
...orking with lots of images if you get the outOfMemory systematically, like doing always the same, then its a leak. If you get it like once a day or something, its because you are too close to the limit. My suggestion in this case is try to remove some stuff and try again. Also Image memory is outs...
Are there any SHA-256 javascript implementations that are generally considered trustworthy?
...hat the project has some oversight by someone who actually knows what he's doing. The project is also supported by the NSF.
It's worth pointing out, however...
... that if you hash the password client-side before submitting it, then the hash is the password, and the original password becomes irrele...
Running multiple async tasks and waiting for them all to complete
...
Both answers didn't mention the awaitable Task.WhenAll:
var task1 = DoWorkAsync();
var task2 = DoMoreWorkAsync();
await Task.WhenAll(task1, task2);
The main difference between Task.WaitAll and Task.WhenAll is that the former will block (similar to using Wait on a single task) while the latt...
What does LayoutInflater in Android do?
...where you place android widgets and then in the adapter's code you have to do something like this:
public MyAdapter(Context context, List<MyObject> objects) extends ArrayAdapter {
super(context, 1, objects);
/* We get the inflator in the constructor */
mInflater = (LayoutInflater) conte...
Parse usable Street Address, City, State, Zip from a string [closed]
...the address into their appropriate fields in a normalized table. I need to do this for approximately 4,000 records and it needs to be repeatable.
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What's the difference between RSpec and Cucumber? [closed]
...e application in isolation from the rest of the application. So your model does what your model is supposed to do, the controller does what it is supposed to do, etc).
RSpec and Cucumber both are used for Acceptance Testing (Which is called ATDD, BDD, Specification by Example, etc depending on who ...
How do I change the default location for Git Bash on Windows?
I am using Git on Windows 7 and access my repositories through Git Bash. How can I change the default location that Git Bash opens in a convenient folder when I start it?
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AsyncProcedures异步过程扩展 · App Inventor 2 中文网
...过程的基本模式：
// 异步执行耗时过程
when Button1.Click
do
// 异步调用耗时过程
call AsyncProcedures1.RunProcedure LongRunningProcess
// 异步过程完成后的回调
when AsyncProcedures1.ProcedureCompleted
do
show notification "异步过程执行完成"
...