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How to turn on front flash light programmatically in Android?
...ng on/off camera flashlight in android..
Update 4
If you want to set the intensity of light emerging from camera LED you can refer Can I change the LED intensity of an Android device? full post. Note that only rooted HTC devices support this feature.
** Issues:**
There are also some problems whi...
How can I add an animation to the activity finish()
... fixed this issue using this kind of approach:
to open with animation:
Intent newUser = new Intent(getBaseContext(), NewUserActivity.class);
startActivity(newUser);
overridePendingTransition(R.anim.slide_in_right,R.anim.slide_out_left);
To close with animation:
@Override
public boolea...
How to go from Blob to ArrayBuffer
...ing Blobs, and I noticed that when you have an ArrayBuffer, you can easily convert this to a Blob as follows:
6 Answers
...
How do I make a transparent border with CSS?
...
And you can use this tool to convert from hex to rgba colour... hexcolortool.com ... where you can optionally specify the hex colour in the URL, like so... hexcolortool.com/#ffcc00
– clayRay
Aug 7 '17 at 1:31
...
Send JSON data via POST (ajax) and receive json response from Controller (MVC)
...
@Dave no, an endpoint (in this case an mvc controller function) should NEVER trust a client, therefore the XSS check should be done at the server. The controller is responsible for parsing the data in the correct way and send the data back to ...
Pandas DataFrame Groupby two columns and get counts
... 3
C 1
4 B 1
5 B 2
6 B 1
dtype: int64
To get the same answer as waitingkuo (the "second question"), but slightly cleaner, is to groupby the level:
In [12]: df.groupby(['col5', 'col2']).size().groupby(level=1).max()
Out[12]:
col2
A 3
B 2
C ...
Python assigning multiple variables to same value? list behavior
... b
True
You then ask:
what is different from this?
d=e=f=3
e=4
print('f:',f)
print('e:',e)
Here, you're rebinding the name e to the value 4. That doesn't affect the names d and f in any way.
In your previous version, you were assigning to a[0], not to a. So, from the point of view of a[...
When to use generic methods and when to use wild-card?
...er> src)
it won't work as expected. In 2nd case, you can pass List<Integer> and List<Float> as dest and src. So, moving elements from src to dest wouldn't be type safe anymore.
If you don't need such kind of relation, then you are free not to use type parameters at all.
Some other ...
Building vs. Compiling (Java)
...
Build is a compiled version of a program.
Compile means, convert (a program) into a machine-code or lower-level form in which the program can be executed.
In Java: Build is a Life cycle contains sequence of named phases.
for example: maven it has three build life cycles, the ...
Java 反射最佳实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...tpRequest);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
...