android.text
public class
public class
android.text.DynamicLayout
| java.lang.Object | |||
| android.text.Layout | |||
| android.text.DynamicLayout | |||
DynamicLayout is a text layout that updates itself as the text is edited.
This is used by widgets to control text layout. You should not need to use this class directly unless you are implementing your own widget or custom display object, or need to call Canvas.drawText() directly.
Summary
Constants inherited
from class
android.text.Layout
Public Constructors
| DynamicLayout(CharSequence base, TextPaint paint, int width, Alignment align, float spacingmult, float spacingadd, boolean includepad) | |||||
| Make a layout for the specified text that will be updated as the text is changed. | |||||
| DynamicLayout(CharSequence base, CharSequence display, TextPaint paint, int width, Alignment align, float spacingmult, float spacingadd, boolean includepad) | |||||
| Make a layout for the transformed text (password transformation being the primary example of a transformation) that will be updated as the base text is changed. | |||||
Public Methods
| int | getBottomPadding() | ||||
| Returns the number of extra pixels of descent padding in the bottom line of the Layout. | |||||
| boolean | getLineContainsTab(int line) | ||||
| Returns whether the specified line contains one or more tabs. | |||||
| int | getLineCount() | ||||
| Return the number of lines of text in this layout. | |||||
| int | getLineDescent(int line) | ||||
| Return the descent of the specified line. | |||||
| final | Directions | getLineDirections(int line) | |||
| Returns an array of directionalities for the specified line. | |||||
| int | getLineStart(int line) | ||||
| Return the text offset of the beginning of the specified line. | |||||
| int | getLineTop(int line) | ||||
| Return the vertical position of the top of the specified line. | |||||
| int | getParagraphDirection(int line) | ||||
| Returns the primary directionality of the paragraph containing the specified line. | |||||
| int | getTopPadding() | ||||
| Returns the (negative) number of extra pixels of ascent padding in the top line of the Layout. | |||||
Methods inherited
from class
android.text.Layout
draw,
draw,
getAlignment,
getBottomPadding,
getCursorPath,
getDesiredWidth,
getDesiredWidth,
getHeight,
getLineAscent,
getLineBaseline,
getLineBottom,
getLineBounds,
getLineContainsTab,
getLineCount,
getLineDescent,
getLineDirections,
getLineEnd,
getLineForOffset,
getLineForVertical,
getLineLeft,
getLineMax,
getLineRight,
getLineStart,
getLineTop,
getLineVisibleEnd,
getOffsetForHorizontal,
getOffsetToLeftOf,
getOffsetToRightOf,
getPaint,
getParagraphAlignment,
getParagraphDirection,
getParagraphLeft,
getParagraphRight,
getPrimaryHorizontal,
getSecondaryHorizontal,
getSelectionPath,
getSpacingAdd,
getSpacingMultiplier,
getText,
getTopPadding,
getWidth,
increaseWidthTo,
isSpanned
Methods inherited
from class
java.lang.Object
Details
Public Constructors
public DynamicLayout(CharSequence base, TextPaint paint, int width, Alignment align, float spacingmult, float spacingadd, boolean includepad)
Make a layout for the specified text that will be updated as
the text is changed.
public DynamicLayout(CharSequence base, CharSequence display, TextPaint paint, int width, Alignment align, float spacingmult, float spacingadd, boolean includepad)
Make a layout for the transformed text (password transformation
being the primary example of a transformation)
that will be updated as the base text is changed.
Public Methods
public int getBottomPadding()
Returns the number of extra pixels of descent padding in the
bottom line of the Layout.
public boolean getLineContainsTab(int line)
Returns whether the specified line contains one or more tabs.
public int getLineCount()
Return the number of lines of text in this layout.
public int getLineDescent(int line)
Return the descent of the specified line.
public final Directions getLineDirections(int line)
Returns an array of directionalities for the specified line.
The array alternates counts of characters in left-to-right
and right-to-left segments of the line.
public int getLineStart(int line)
Return the text offset of the beginning of the specified line.
If the specified line is one beyond the last line, returns the
end of the last line.
public int getLineTop(int line)
Return the vertical position of the top of the specified line.
If the specified line is one beyond the last line, returns the
bottom of the last line.
public int getParagraphDirection(int line)
Returns the primary directionality of the paragraph containing
the specified line.
public int getTopPadding()
Returns the (negative) number of extra pixels of ascent padding in the
top line of the Layout.