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Added in API level 1

Summary: Inherited Constants | Ctors | Methods | Inherited Methods | [Expand All]

DynamicLayout

public class DynamicLayout
extends Layout

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

Inherited constants

From class


    android.text.Layout

Public constructors
`DynamicLayout(CharSequence base, TextPaint paint, int width, Layout.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, Layout.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.
`DynamicLayout(CharSequence base, CharSequence display, TextPaint paint, int width, Layout.Alignment align, float spacingmult, float spacingadd, boolean includepad, TextUtils.TruncateAt ellipsize, int ellipsizedWidth)` 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.
`int`	`getEllipsisCount(int line)` Returns the number of characters to be ellipsized away, or 0 if no ellipsis is to take place.
`int`	`getEllipsisStart(int line)` Return the offset of the first character to be ellipsized away, relative to the start of the line.
`int`	`getEllipsizedWidth()` Return the width to which this Layout is ellipsizing, or `getWidth()` if it is not doing anything special.
`boolean`	`getLineContainsTab(int line)` Returns whether the specified line contains one or more characters that need to be handled specially, like tabs.
`int`	`getLineCount()` Return the number of lines of text in this layout.
`int`	`getLineDescent(int line)` Return the descent of the specified line(0…getLineCount() - 1).
`final Layout.Directions`	`getLineDirections(int line)` Returns the directional run information for the specified line.
`int`	`getLineStart(int line)` Return the text offset of the beginning of the specified line ( 0…getLineCount()).
`int`	`getLineTop(int line)` Return the vertical position of the top of the specified line (0…getLineCount()).
`int`	`getParagraphDirection(int line)` Returns the primary directionality of the paragraph containing the specified line, either 1 for left-to-right lines, or -1 for right-to-left lines (see `DIR_LEFT_TO_RIGHT`, `DIR_RIGHT_TO_LEFT`).
`int`	`getTopPadding()` Returns the (negative) number of extra pixels of ascent padding in the top line of the Layout.

Inherited methods

From class


  
    android.text.Layout

`void`	`draw(Canvas c)` Draw this Layout on the specified Canvas.
`void`	`draw(Canvas canvas, Path highlight, Paint highlightPaint, int cursorOffsetVertical)` Draw this Layout on the specified canvas, with the highlight path drawn between the background and the text.
`final Layout.Alignment`	`getAlignment()` Return the base alignment of this layout.
`abstract int`	`getBottomPadding()` Returns the number of extra pixels of descent padding in the bottom line of the Layout.
`void`	`getCursorPath(int point, Path dest, CharSequence editingBuffer)` Fills in the specified Path with a representation of a cursor at the specified offset.
`static float`	`getDesiredWidth(CharSequence source, TextPaint paint)` Return how wide a layout must be in order to display the specified text with one line per paragraph.
`static float`	`getDesiredWidth(CharSequence source, int start, int end, TextPaint paint)` Return how wide a layout must be in order to display the specified text slice with one line per paragraph.
`abstract int`	`getEllipsisCount(int line)` Returns the number of characters to be ellipsized away, or 0 if no ellipsis is to take place.
`abstract int`	`getEllipsisStart(int line)` Return the offset of the first character to be ellipsized away, relative to the start of the line.
`int`	`getEllipsizedWidth()` Return the width to which this Layout is ellipsizing, or `getWidth()` if it is not doing anything special.
`int`	`getHeight()` Return the total height of this layout.
`final int`	`getLineAscent(int line)` Get the ascent of the text on the specified line.
`final int`	`getLineBaseline(int line)` Return the vertical position of the baseline of the specified line.
`final int`	`getLineBottom(int line)` Return the vertical position of the bottom of the specified line.
`int`	`getLineBounds(int line, Rect bounds)` Return the baseline for the specified line (0…getLineCount() - 1) If bounds is not null, return the top, left, right, bottom extents of the specified line in it.
`abstract boolean`	`getLineContainsTab(int line)` Returns whether the specified line contains one or more characters that need to be handled specially, like tabs.
`abstract int`	`getLineCount()` Return the number of lines of text in this layout.
`abstract int`	`getLineDescent(int line)` Return the descent of the specified line(0…getLineCount() - 1).
`abstract Layout.Directions`	`getLineDirections(int line)` Returns the directional run information for the specified line.
`final int`	`getLineEnd(int line)` Return the text offset after the last character on the specified line.
`int`	`getLineForOffset(int offset)` Get the line number on which the specified text offset appears.
`int`	`getLineForVertical(int vertical)` Get the line number corresponding to the specified vertical position.
`float`	`getLineLeft(int line)` Get the leftmost position that should be exposed for horizontal scrolling on the specified line.
`float`	`getLineMax(int line)` Gets the unsigned horizontal extent of the specified line, including leading margin indent, but excluding trailing whitespace.
`float`	`getLineRight(int line)` Get the rightmost position that should be exposed for horizontal scrolling on the specified line.
`abstract int`	`getLineStart(int line)` Return the text offset of the beginning of the specified line ( 0…getLineCount()).
`abstract int`	`getLineTop(int line)` Return the vertical position of the top of the specified line (0…getLineCount()).
`int`	`getLineVisibleEnd(int line)` Return the text offset after the last visible character (so whitespace is not counted) on the specified line.
`float`	`getLineWidth(int line)` Gets the unsigned horizontal extent of the specified line, including leading margin indent and trailing whitespace.
`int`	`getOffsetForHorizontal(int line, float horiz)` Get the character offset on the specified line whose position is closest to the specified horizontal position.
`int`	`getOffsetToLeftOf(int offset)`
`int`	`getOffsetToRightOf(int offset)`
`final TextPaint`	`getPaint()` Return the base Paint properties for this layout.
`final Layout.Alignment`	`getParagraphAlignment(int line)` Get the alignment of the specified paragraph, taking into account markup attached to it.
`abstract int`	`getParagraphDirection(int line)` Returns the primary directionality of the paragraph containing the specified line, either 1 for left-to-right lines, or -1 for right-to-left lines (see `DIR_LEFT_TO_RIGHT`, `DIR_RIGHT_TO_LEFT`).
`final int`	`getParagraphLeft(int line)` Get the left edge of the specified paragraph, inset by left margins.
`final int`	`getParagraphRight(int line)` Get the right edge of the specified paragraph, inset by right margins.
`float`	`getPrimaryHorizontal(int offset)` Get the primary horizontal position for the specified text offset.
`float`	`getSecondaryHorizontal(int offset)` Get the secondary horizontal position for the specified text offset.
`void`	`getSelectionPath(int start, int end, Path dest)` Fills in the specified Path with a representation of a highlight between the specified offsets.
`final float`	`getSpacingAdd()` Return the number of units of leading that are added to each line.
`final float`	`getSpacingMultiplier()` Return what the text height is multiplied by to get the line height.
`final CharSequence`	`getText()` Return the text that is displayed by this Layout.
`abstract int`	`getTopPadding()` Returns the (negative) number of extra pixels of ascent padding in the top line of the Layout.
`final int`	`getWidth()` Return the width of this layout.
`final void`	`increaseWidthTo(int wid)` Increase the width of this layout to the specified width.
`boolean`	`isRtlCharAt(int offset)` Returns true if the character at offset is right to left (RTL).
`final boolean`	`isSpanned()`

From class


  
    java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

DynamicLayout

Added in API level 1

DynamicLayout (CharSequence base, 
                TextPaint paint, 
                int width, 
                Layout.Alignment align, 
                float spacingmult, 
                float spacingadd, 
                boolean includepad)

Make a layout for the specified text that will be updated as the text is changed.

Parameters
`base`	`CharSequence`
`paint`	`TextPaint`
`width`	`int`
`align`	`Layout.Alignment`
`spacingmult`	`float`
`spacingadd`	`float`
`includepad`	`boolean`

DynamicLayout

Added in API level 1

DynamicLayout (CharSequence base, 
                CharSequence display, 
                TextPaint paint, 
                int width, 
                Layout.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.

Parameters
`base`	`CharSequence`
`display`	`CharSequence`
`paint`	`TextPaint`
`width`	`int`
`align`	`Layout.Alignment`
`spacingmult`	`float`
`spacingadd`	`float`
`includepad`	`boolean`

DynamicLayout

Added in API level 1

DynamicLayout (CharSequence base, 
                CharSequence display, 
                TextPaint paint, 
                int width, 
                Layout.Alignment align, 
                float spacingmult, 
                float spacingadd, 
                boolean includepad, 
                TextUtils.TruncateAt ellipsize, 
                int ellipsizedWidth)

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. If ellipsize is non-null, the Layout will ellipsize the text down to ellipsizedWidth.

Parameters
`base`	`CharSequence`
`display`	`CharSequence`
`paint`	`TextPaint`
`width`	`int`
`align`	`Layout.Alignment`
`spacingmult`	`float`
`spacingadd`	`float`
`includepad`	`boolean`
`ellipsize`	`TextUtils.TruncateAt`
`ellipsizedWidth`	`int`

Public methods

getBottomPadding

Added in API level 1

int getBottomPadding ()

Returns the number of extra pixels of descent padding in the bottom line of the Layout.

Returns
`int`

getEllipsisCount

Added in API level 1

int getEllipsisCount (int line)

Returns the number of characters to be ellipsized away, or 0 if no ellipsis is to take place.

Parameters
`line`	`int`

Returns
`int`

getEllipsisStart

Added in API level 1

int getEllipsisStart (int line)

Return the offset of the first character to be ellipsized away, relative to the start of the line. (So 0 if the beginning of the line is ellipsized, not getLineStart().)

Parameters
`line`	`int`

Returns
`int`

getEllipsizedWidth

Added in API level 1

int getEllipsizedWidth ()

Return the width to which this Layout is ellipsizing, or getWidth() if it is not doing anything special.

Returns
`int`

getLineContainsTab

Added in API level 1

boolean getLineContainsTab (int line)

Returns whether the specified line contains one or more characters that need to be handled specially, like tabs.

Parameters
`line`	`int`

Returns
`boolean`

getLineCount

Added in API level 1

int getLineCount ()

Return the number of lines of text in this layout.

Returns
`int`

getLineDescent

Added in API level 1

int getLineDescent (int line)

Return the descent of the specified line(0…getLineCount() - 1).

Parameters
`line`	`int`

Returns
`int`

getLineDirections

Added in API level 1

Layout.Directions getLineDirections (int line)

Returns the directional run information for the specified line. The array alternates counts of characters in left-to-right and right-to-left segments of the line.

NOTE: this is inadequate to support bidirectional text, and will change.

Parameters
`line`	`int`

Returns
`Layout.Directions`

getLineStart

Added in API level 1

int getLineStart (int line)

Return the text offset of the beginning of the specified line ( 0…getLineCount()). If the specified line is equal to the line count, returns the length of the text.

Parameters
`line`	`int`

Returns
`int`

getLineTop

Added in API level 1

int getLineTop (int line)

Return the vertical position of the top of the specified line (0…getLineCount()). If the specified line is equal to the line count, returns the bottom of the last line.

Parameters
`line`	`int`

Returns
`int`

getParagraphDirection

Added in API level 1

int getParagraphDirection (int line)

Returns the primary directionality of the paragraph containing the specified line, either 1 for left-to-right lines, or -1 for right-to-left lines (see DIR_LEFT_TO_RIGHT, DIR_RIGHT_TO_LEFT).

Parameters
`line`	`int`

Returns
`int`

getTopPadding

Added in API level 1

int getTopPadding ()

Returns the (negative) number of extra pixels of ascent padding in the top line of the Layout.

Returns
`int`

Interfaces

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DynamicLayout

Summary

Inherited constants

Public constructors

Public methods

Inherited methods

Public constructors

DynamicLayout

DynamicLayout

DynamicLayout

Public methods

getBottomPadding

getEllipsisCount

getEllipsisStart

getEllipsizedWidth

getLineContainsTab

getLineCount

getLineDescent

getLineDirections

getLineStart

getLineTop

getParagraphDirection

getTopPadding