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List View Filter Android
...d.inputSearch);
// Adding items to listview
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
lv.setAdapter(adapter);
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg...
How to add Action Bar from support library into PreferenceActivity?
...oid:minHeight="?attr/actionBarSize"
app:navigationContentDescription="@string/abc_action_bar_up_description"
android:background="?attr/colorPrimary"
app:navigationIcon="?attr/homeAsUpIndicator"
app:title="@string/action_settings"
/>
SettingsActivity.java :
public class Settin...
JavaScript string encryption and decryption?
...TML = decrypted;
document.getElementById("demo3").innerHTML = decrypted.toString(CryptoJS.enc.Utf8);
Full working sample actually is:
<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/rollups/aes.js" integrity="sha256-/H4YS+7aYb9kJ5OKhFYPUjSJdrtV6AeyJOtTkw6X72o=" crosso...
Why does C# disallow readonly local variables?
...ether the benefit of getting the compiler to do that checking is worth the extra "fluff" when reading the code and not actually caring about it.
– Jon Skeet
Jan 14 '09 at 20:52
4
...
Can ordered list produce result that looks like 1.1, 1.2, 1.3 (instead of just 1, 2, 3, …) with css?
...n "li:after" with "display: block". See jsFiddle for a full example. As an extra bonus I added "text-align: right" to "li:before" to make the numbers right aligned.
– mmlr
Dec 14 '17 at 12:28
...
Getting a map() to return a list in Python 3.x
...
I guess because it's more verbose, you have to write an extra variable (twice)... If the operation is more complex and you end up writing a lambda, or you need also to drop some elements, I think a comprehension is definitively better than a map+filter, but if you already have the...
@UniqueConstraint annotation in Java
...
To ensure a field value is unique you can write
@Column(unique=true)
String username;
The @UniqueConstraint annotation is for annotating multiple unique keys at the table level, which is why you get an error when applying it to a field.
References (JPA TopLink):
@UniqueConstraint
@Column
...
Generate Java class from JSON?
... only flat JSON and don't take care of types, but automate some routine
String str =
"{"
+ "'title': 'Computing and Information systems',"
+ "'id' : 1,"
+ "'children' : 'true',"
+ "'groups' : [{"
+ "'title' : 'Level one CIS'...
What does threadsafe mean?
... the definition of thread safety as found of Wikipedia.
3 important things extracted from the links :
“A piece of code is thread-safe if it functions correctly during
simultaneous execution by multiple threads.”
“In particular, it must satisfy the need for multiple threads to
access the same ...
Cannot install packages using node package manager in Ubuntu
... package shall also provide a nodejs-legacy binary package at Priority: extra that contains /usr/bin/node as a symlink to
/usr/bin/nodejs. No package in the archive may depend on or recommend
the nodejs-legacy package, which is provided solely for upstream
compatibility. This package decl...