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Live character count for EditText
... //This sets a textview to the current length
mTextView.setText(String.valueOf(s.length()));
}
public void afterTextChanged(Editable s) {
}
};
you set the TextWatcher for the edittext with
mEditText.addTextChangedListener(mTextEditorWatcher);
...
ActionBar text color
...ortActionBar() */.setTitle(Html.fromHtml("<font color=\"red\">" + getString(R.string.app_name) + "</font>"));
You can also use the red hex code #FF0000 instead of the word red. If you are having trouble with this, see Android Html.fromHtml(String) doesn't work for <font color='#'>...
Elegant way to invert a map in Scala
...t; "b", 4 -> "b")
scala> m.groupBy(_._2).mapValues(_.keys)
res0: Map[String,Iterable[Int]] = Map(b -> Set(2, 4), a -> Set(1))
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What's the difference between BaseAdapter and ArrayAdapter?
...ctor in the subclass constructor.
UserListAdapter extends ArrayAdapter<String>{
List<String> UserList;
Context context;
public UserListAdapter(Context context, int resource,List<String> listUsers) {
super(context, resource, listUsers); /* Super class construct...
Why `null >= 0 && null
...orithm.
In Summary:
Relational Comparison: if both values are not type String, ToNumber is called on both. This is the same as adding a + in front, which for null coerces to 0.
Equality Comparison: only calls ToNumber on Strings, Numbers, and Booleans.
...
C#: How to convert a list of objects to a list of a single property of that object?
...
List<string> firstNames = people.Select(person => person.FirstName).ToList();
And with sorting
List<string> orderedNames = people.Select(person => person.FirstName).OrderBy(name => name).ToList();
...
Chrome Uncaught Syntax Error: Unexpected Token ILLEGAL [duplicate]
...gramming languages, anyway) for there to be embedded Unicode characters in string constants, for example. The problems start happening when the language parser encounters the characters when it doesn't expect them.
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'Missing contentDescription attribute on image' in XML
...e android:contentDescription
for my ImageView
android:contentDescription="@string/desc"
Android Lint support in ADT 16 throws this warning to ensure that
image widgets provide a contentDescription
This defines text that briefly describes the content of the view. This
property is used primarily for a...
How to iterate over a TreeMap? [duplicate]
...
Assuming type TreeMap<String,Integer> :
for(Map.Entry<String,Integer> entry : treeMap.entrySet()) {
String key = entry.getKey();
Integer value = entry.getValue();
System.out.println(key + " => " + value);
}
(key and Value typ...
JavaScript .replace only replaces first Match [duplicate]
...
Try using a regex instead of a string for the first argument.
"this is a test".replace(/ /g,'%20') // #=> "this%20is%20a%20test"
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