TextDirectionHeuristics
public
class
TextDirectionHeuristics
extends Object
java.lang.Object | |
↳ | android.text.TextDirectionHeuristics |
Some objects that implement TextDirectionHeuristic
. Use these with
the unicodeWrap()
methods in BidiFormatter
.
Also notice that these direction heuristics correspond to the same types of constants
provided in the View
class for setTextDirection()
, such as View.TEXT_DIRECTION_RTL
.
To support versions lower than Build.VERSION_CODES.JELLY_BEAN_MR2
,
you can use the support library's TextDirectionHeuristicsCompat
class.
Summary
Fields | |
---|---|
public
static
final
TextDirectionHeuristic |
ANYRTL_LTR
If the text contains any strong right to left non-format character, determines that the direction is right to left, falling back to left to right if it finds none. |
public
static
final
TextDirectionHeuristic |
FIRSTSTRONG_LTR
Determines the direction based on the first strong directional character, including bidi format chars, falling back to left to right if it finds none. |
public
static
final
TextDirectionHeuristic |
FIRSTSTRONG_RTL
Determines the direction based on the first strong directional character, including bidi format chars, falling back to right to left if it finds none. |
public
static
final
TextDirectionHeuristic |
LOCALE
Force the paragraph direction to the Locale direction. |
public
static
final
TextDirectionHeuristic |
LTR
Always decides that the direction is left to right. |
public
static
final
TextDirectionHeuristic |
RTL
Always decides that the direction is right to left. |
Public constructors | |
---|---|
TextDirectionHeuristics()
|
Inherited methods | |
---|---|
Fields
ANYRTL_LTR
public static final TextDirectionHeuristic ANYRTL_LTR
If the text contains any strong right to left non-format character, determines that the direction is right to left, falling back to left to right if it finds none.
FIRSTSTRONG_LTR
public static final TextDirectionHeuristic FIRSTSTRONG_LTR
Determines the direction based on the first strong directional character, including bidi format chars, falling back to left to right if it finds none. This is the default behavior of the Unicode Bidirectional Algorithm.
FIRSTSTRONG_RTL
public static final TextDirectionHeuristic FIRSTSTRONG_RTL
Determines the direction based on the first strong directional character, including bidi format chars, falling back to right to left if it finds none. This is similar to the default behavior of the Unicode Bidirectional Algorithm, just with different fallback behavior.
LOCALE
public static final TextDirectionHeuristic LOCALE
Force the paragraph direction to the Locale direction. Falls back to left to right.
LTR
public static final TextDirectionHeuristic LTR
Always decides that the direction is left to right.
RTL
public static final TextDirectionHeuristic RTL
Always decides that the direction is right to left.
Public constructors
TextDirectionHeuristics
public TextDirectionHeuristics ()