TextRange class

A range of characters in a string of text.

Implemented by
Annotations
  • @immutable

Constructors

TextRange({@required int start, @required int end })
Creates a text range. [...]
const
TextRange.collapsed(int offset)
A text range that starts and ends at offset. [...]
const

Properties

end → int
The next index after the characters in this range. [...]
final
hashCode → int
The hash code for this object. [...]
read-only
isCollapsed → bool
Whether this range is empty (but still potentially placed inside the text).
read-only
isNormalized → bool
Whether the start of this range precedes the end.
read-only
isValid → bool
Whether this range represents a valid position in the text.
read-only
start → int
The index of the first character in the range. [...]
final
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited

Methods

textAfter(String text) → String
The text after this range.
textBefore(String text) → String
The text before this range.
textInside(String text) → String
The text inside this range.
toString() → String
Returns a string representation of this object.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited

Operators

operator ==(dynamic other) → bool
The equality operator. [...]

Constants

empty → const TextRange
A text range that contains nothing and is not in the text.
const TextRange(start: -1, end: -1)