IT. Expert System.

Android Reference

BoringLayout

android.text

Class BoringLayout

java.lang.Object
- android.text.Layout
- - android.text.BoringLayout

All Implemented Interfaces:

TextUtils.EllipsizeCallback
```
public class BoringLayout
extends Layout
implements TextUtils.EllipsizeCallback
```
A BoringLayout is a very simple Layout implementation for text that fits on a single line and is all left-to-right characters. You will probably never want to make one of these yourself; if you do, be sure to call isBoring(java.lang.CharSequence, android.text.TextPaint) first to make sure the text meets the criteria.
This class 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, in which case you are encouraged to use a Layout instead of calling Canvas.drawText() directly.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class BoringLayout.Metrics
- Nested classes/interfaces inherited from class android.text.Layout
  Layout.Alignment, Layout.Directions

Nested Classes
Modifier and Type	Class and Description
`static class`	`BoringLayout.Metrics`

Field Summary
- Fields inherited from class android.text.Layout
  DIR_LEFT_TO_RIGHT, DIR_RIGHT_TO_LEFT

Constructor Summary

Constructors
Constructor and Description
`BoringLayout(CharSequence source, TextPaint paint, int outerwidth, Layout.Alignment align, float spacingmult, float spacingadd, BoringLayout.Metrics metrics, boolean includepad)`
`BoringLayout(CharSequence source, TextPaint paint, int outerwidth, Layout.Alignment align, float spacingmult, float spacingadd, BoringLayout.Metrics metrics, boolean includepad, TextUtils.TruncateAt ellipsize, int ellipsizedWidth)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`draw(Canvas c, Path highlight, Paint highlightpaint, int cursorOffset)` Draw this Layout on the specified canvas, with the highlight path drawn between the background and the text.
`void`	`ellipsized(int start, int end)` Callback for the ellipsizer to report what region it ellipsized.
`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 `Layout.getWidth()` if it is not doing anything special.
`int`	`getHeight()` Return the total height of this layout.
`boolean`	`getLineContainsTab(int line)` Returns whether the specified line contains one or more characters that need to be handled specially, like tabs or emoji.
`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).
`Layout.Directions`	`getLineDirections(int line)` Returns the directional run information for the specified line.
`float`	`getLineMax(int line)` Gets the unsigned horizontal extent of the specified line, including leading margin indent, but excluding trailing whitespace.
`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 `Layout.DIR_LEFT_TO_RIGHT`, `Layout.DIR_RIGHT_TO_LEFT`).
`int`	`getTopPadding()` Returns the (negative) number of extra pixels of ascent padding in the top line of the Layout.
`static BoringLayout.Metrics`	`isBoring(CharSequence text, TextPaint paint)` Returns null if not boring; the width, ascent, and descent if boring.
`static BoringLayout.Metrics`	`isBoring(CharSequence text, TextPaint paint, BoringLayout.Metrics metrics)` Returns null if not boring; the width, ascent, and descent in the provided Metrics object (or a new one if the provided one was null) if boring.
`static BoringLayout.Metrics`	`isBoring(CharSequence text, TextPaint paint, TextDirectionHeuristic textDir)` Returns null if not boring; the width, ascent, and descent if boring.
`static BoringLayout.Metrics`	`isBoring(CharSequence text, TextPaint paint, TextDirectionHeuristic textDir, BoringLayout.Metrics metrics)` Returns null if not boring; the width, ascent, and descent in the provided Metrics object (or a new one if the provided one was null) if boring.
`static BoringLayout`	`make(CharSequence source, TextPaint paint, int outerwidth, Layout.Alignment align, float spacingmult, float spacingadd, BoringLayout.Metrics metrics, boolean includepad)`
`static BoringLayout`	`make(CharSequence source, TextPaint paint, int outerwidth, Layout.Alignment align, float spacingmult, float spacingadd, BoringLayout.Metrics metrics, boolean includepad, TextUtils.TruncateAt ellipsize, int ellipsizedWidth)`
`BoringLayout`	`replaceOrMake(CharSequence source, TextPaint paint, int outerwidth, Layout.Alignment align, float spacingmult, float spacingadd, BoringLayout.Metrics metrics, boolean includepad)` Returns a BoringLayout for the specified text, potentially reusing this one if it is already suitable.
`BoringLayout`	`replaceOrMake(CharSequence source, TextPaint paint, int outerwidth, Layout.Alignment align, float spacingmult, float spacingadd, BoringLayout.Metrics metrics, boolean includepad, TextUtils.TruncateAt ellipsize, int ellipsizedWidth)` Returns a BoringLayout for the specified text, potentially reusing this one if it is already suitable.

Methods inherited from class android.text.Layout
draw, drawBackground, drawText, getAlignment, getCursorPath, getDesiredWidth, getDesiredWidth, getLineAscent, getLineBaseline, getLineBottom, getLineBounds, getLineEnd, getLineForOffset, getLineForVertical, getLineLeft, getLineRangeForDraw, getLineRight, getLineVisibleEnd, getLineWidth, getOffsetForHorizontal, getOffsetToLeftOf, getOffsetToRightOf, getPaint, getParagraphAlignment, getParagraphLeft, getParagraphRight, getPrimaryHorizontal, getSecondaryHorizontal, getSelectionPath, getSpacingAdd, getSpacingMultiplier, getText, getTextDirectionHeuristic, getWidth, increaseWidthTo, isLevelBoundary, isRtlCharAt, isSpanned

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - BoringLayout
```
public BoringLayout(CharSequence source,
            TextPaint paint,
            int outerwidth,
            Layout.Alignment align,
            float spacingmult,
            float spacingadd,
            BoringLayout.Metrics metrics,
            boolean includepad)
```
  - BoringLayout
```
public BoringLayout(CharSequence source,
            TextPaint paint,
            int outerwidth,
            Layout.Alignment align,
            float spacingmult,
            float spacingadd,
            BoringLayout.Metrics metrics,
            boolean includepad,
            TextUtils.TruncateAt ellipsize,
            int ellipsizedWidth)
```
- Method Detail
  - make
```
public static BoringLayout make(CharSequence source,
                TextPaint paint,
                int outerwidth,
                Layout.Alignment align,
                float spacingmult,
                float spacingadd,
                BoringLayout.Metrics metrics,
                boolean includepad)
```
  - make
```
public static BoringLayout make(CharSequence source,
                TextPaint paint,
                int outerwidth,
                Layout.Alignment align,
                float spacingmult,
                float spacingadd,
                BoringLayout.Metrics metrics,
                boolean includepad,
                TextUtils.TruncateAt ellipsize,
                int ellipsizedWidth)
```
  - replaceOrMake
```
public BoringLayout replaceOrMake(CharSequence source,
                         TextPaint paint,
                         int outerwidth,
                         Layout.Alignment align,
                         float spacingmult,
                         float spacingadd,
                         BoringLayout.Metrics metrics,
                         boolean includepad)
```
    Returns a BoringLayout for the specified text, potentially reusing this one if it is already suitable. The caller must make sure that no one is still using this Layout.
  - replaceOrMake
```
public BoringLayout replaceOrMake(CharSequence source,
                         TextPaint paint,
                         int outerwidth,
                         Layout.Alignment align,
                         float spacingmult,
                         float spacingadd,
                         BoringLayout.Metrics metrics,
                         boolean includepad,
                         TextUtils.TruncateAt ellipsize,
                         int ellipsizedWidth)
```
    Returns a BoringLayout for the specified text, potentially reusing this one if it is already suitable. The caller must make sure that no one is still using this Layout.
  - isBoring
```
public static BoringLayout.Metrics isBoring(CharSequence text,
                            TextPaint paint)
```
    Returns null if not boring; the width, ascent, and descent if boring.
  - isBoring
```
public static BoringLayout.Metrics isBoring(CharSequence text,
                            TextPaint paint,
                            TextDirectionHeuristic textDir)
```
    Returns null if not boring; the width, ascent, and descent if boring.
  - isBoring
```
public static BoringLayout.Metrics isBoring(CharSequence text,
                            TextPaint paint,
                            BoringLayout.Metrics metrics)
```
    Returns null if not boring; the width, ascent, and descent in the provided Metrics object (or a new one if the provided one was null) if boring.
  - isBoring
```
public static BoringLayout.Metrics isBoring(CharSequence text,
                            TextPaint paint,
                            TextDirectionHeuristic textDir,
                            BoringLayout.Metrics metrics)
```
    Returns null if not boring; the width, ascent, and descent in the provided Metrics object (or a new one if the provided one was null) if boring.
  - getHeight
```
public int getHeight()
```
    Description copied from class: Layout
    
    Return the total height of this layout.
    
    Overrides:
    
    getHeight in class Layout
  - getLineCount
```
public int getLineCount()
```
    Description copied from class: Layout
    
    Return the number of lines of text in this layout.
    
    Specified by:
    
    getLineCount in class Layout
  - getLineTop
```
public int getLineTop(int line)
```
    Description copied from class: Layout
    
    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.
    
    Specified by:
    
    getLineTop in class Layout
  - getLineDescent
```
public int getLineDescent(int line)
```
    Description copied from class: Layout
    
    Return the descent of the specified line(0…getLineCount() - 1).
    
    Specified by:
    
    getLineDescent in class Layout
  - getLineStart
```
public int getLineStart(int line)
```
    Description copied from class: Layout
    
    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.
    
    Specified by:
    
    getLineStart in class Layout
  - getParagraphDirection
```
public int getParagraphDirection(int line)
```
    Description copied from class: Layout
    
    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 Layout.DIR_LEFT_TO_RIGHT, Layout.DIR_RIGHT_TO_LEFT).
    
    Specified by:
    
    getParagraphDirection in class Layout
  - getLineContainsTab
```
public boolean getLineContainsTab(int line)
```
    Description copied from class: Layout
    
    Returns whether the specified line contains one or more characters that need to be handled specially, like tabs or emoji.
    
    Specified by:
    
    getLineContainsTab in class Layout
  - getLineMax
```
public float getLineMax(int line)
```
    Description copied from class: Layout
    
    Gets the unsigned horizontal extent of the specified line, including leading margin indent, but excluding trailing whitespace.
    
    Overrides:
    
    getLineMax in class Layout
  - getLineDirections
```
public final Layout.Directions getLineDirections(int line)
```
    Description copied from class: Layout
    
    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.
    
    Specified by:
    
    getLineDirections in class Layout
  - getTopPadding
```
public int getTopPadding()
```
    Description copied from class: Layout
    
    Returns the (negative) number of extra pixels of ascent padding in the top line of the Layout.
    
    Specified by:
    
    getTopPadding in class Layout
  - getBottomPadding
```
public int getBottomPadding()
```
    Description copied from class: Layout
    
    Returns the number of extra pixels of descent padding in the bottom line of the Layout.
    
    Specified by:
    
    getBottomPadding in class Layout
  - getEllipsisCount
```
public int getEllipsisCount(int line)
```
    Description copied from class: Layout
    
    Returns the number of characters to be ellipsized away, or 0 if no ellipsis is to take place.
    
    Specified by:
    
    getEllipsisCount in class Layout
  - getEllipsisStart
```
public int getEllipsisStart(int line)
```
    Description copied from class: Layout
    
    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().)
    
    Specified by:
    
    getEllipsisStart in class Layout
  - getEllipsizedWidth
```
public int getEllipsizedWidth()
```
    Description copied from class: Layout
    
    Return the width to which this Layout is ellipsizing, or Layout.getWidth() if it is not doing anything special.
    
    Overrides:
    
    getEllipsizedWidth in class Layout
  - draw
```
public void draw(Canvas c,
        Path highlight,
        Paint highlightpaint,
        int cursorOffset)
```
    Description copied from class: Layout
    
    Draw this Layout on the specified canvas, with the highlight path drawn between the background and the text.
    
    Overrides:
    
    draw in class Layout
    
    Parameters:
    c - the canvas
    highlight - the path of the highlight or cursor; can be null
    highlightpaint - the paint for the highlight
    cursorOffset - the amount to temporarily translate the canvas while rendering the highlight
  - ellipsized
```
public void ellipsized(int start,
              int end)
```
    Callback for the ellipsizer to report what region it ellipsized.
    
    Specified by:
    
    ellipsized in interface TextUtils.EllipsizeCallback

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IT. Expert System.

Android Reference

BoringLayout

Class BoringLayout

Nested Class Summary

Nested classes/interfaces inherited from class android.text.Layout

Field Summary

Fields inherited from class android.text.Layout

Constructor Summary

Method Summary

Methods inherited from class android.text.Layout

Methods inherited from class java.lang.Object

Constructor Detail

BoringLayout

BoringLayout

Method Detail

make

make

replaceOrMake

replaceOrMake

isBoring

isBoring

isBoring

isBoring

getHeight

getLineCount

getLineTop

getLineDescent

getLineStart

getParagraphDirection

getLineContainsTab

getLineMax

getLineDirections

getTopPadding

getBottomPadding

getEllipsisCount

getEllipsisStart

getEllipsizedWidth

draw

ellipsized

Android Reference

Java basics

Java Enterprise Edition (EE)

Java Standard Edition (SE)

SQL

HTML

PHP

CSS

Java Script

MYSQL

JQUERY

VBS

REGEX

C

C++

C#

Design patterns

RFC (standard status)

RFC (proposed standard status)

RFC (draft standard status)

RFC (informational status)

RFC (experimental status)

RFC (best current practice status)

RFC (historic status)

RFC (unknown status)

IT dictionary