IT. Expert System.

public class BitmapDrawable
extends Drawable

• Nested Class Summary

  • Nested classes/interfaces inherited from class android.graphics.drawable.Drawable

    Drawable.Callback, Drawable.ConstantState

• Constructor Summary

  Constructors

  Constructor and Description
  BitmapDrawable() Deprecated. Use BitmapDrawable(Resources) to ensure that the drawable has correctly set its target density.
  BitmapDrawable(Bitmap bitmap) Deprecated. Use BitmapDrawable(Resources, Bitmap) to ensure that the drawable has correctly set its target density.
  BitmapDrawable(InputStream is) Deprecated. Use BitmapDrawable(Resources, java.io.InputStream) to ensure that the drawable has correctly set its target density.
  BitmapDrawable(Resources res) Create an empty drawable, setting initial target density based on the display metrics of the resources.
  BitmapDrawable(Resources res, Bitmap bitmap) Create drawable from a bitmap, setting initial target density based on the display metrics of the resources.
  BitmapDrawable(Resources res, InputStream is) Create a drawable by decoding a bitmap from the given input stream.
  BitmapDrawable(Resources res, String filepath) Create a drawable by opening a given file path and decoding the bitmap.
  BitmapDrawable(String filepath) Deprecated. Use BitmapDrawable(Resources, String) to ensure that the drawable has correctly set its target density.

• Method Summary

  Methods

  Modifier and Type	Method and Description
  void	draw(Canvas canvas) Draw in its bounds (set via setBounds) respecting optional effects such as alpha (set via setAlpha) and color filter (set via setColorFilter).
  Bitmap	getBitmap() Returns the bitmap used by this drawable to render.
  int	getChangingConfigurations() Return a mask of the configuration parameters for which this drawable may change, requiring that it be re-created.
  Drawable.ConstantState	getConstantState() Return a Drawable.ConstantState instance that holds the shared state of this Drawable.
  int	getGravity() Get the gravity used to position/stretch the bitmap within its bounds.
  int	getIntrinsicHeight() Return the intrinsic height of the underlying drawable object.
  int	getIntrinsicWidth() Return the intrinsic width of the underlying drawable object.
  int	getOpacity() Return the opacity/transparency of this Drawable.
  Paint	getPaint() Returns the paint used to render this drawable.
  Shader.TileMode	getTileModeX() Indicates the repeat behavior of this drawable on the X axis.
  Shader.TileMode	getTileModeY() Indicates the repeat behavior of this drawable on the Y axis.
  void	inflate(Resources r, XmlPullParser parser, AttributeSet attrs) Inflate this Drawable from an XML resource.
  Drawable	mutate() A mutable BitmapDrawable still shares its Bitmap with any other Drawable that comes from the same resource.
  protected void	onBoundsChange(Rect bounds) Override this in your subclass to change appearance if you recognize the specified state.
  void	setAlpha(int alpha) Specify an alpha value for the drawable.
  void	setAntiAlias(boolean aa) Enables or disables anti-aliasing for this drawable.
  void	setColorFilter(ColorFilter cf) Specify an optional colorFilter for the drawable.
  void	setDither(boolean dither) Set to true to have the drawable dither its colors when drawn to a device with fewer than 8-bits per color component.
  void	setFilterBitmap(boolean filter) Set to true to have the drawable filter its bitmap when scaled or rotated (for drawables that use bitmaps).
  void	setGravity(int gravity) Set the gravity used to position/stretch the bitmap within its bounds.
  void	setTargetDensity(Canvas canvas) Set the density scale at which this drawable will be rendered.
  void	setTargetDensity(DisplayMetrics metrics) Set the density scale at which this drawable will be rendered.
  void	setTargetDensity(int density) Set the density at which this drawable will be rendered.
  void	setTileModeX(Shader.TileMode mode) Sets the repeat behavior of this drawable on the X axis.
  void	setTileModeXY(Shader.TileMode xmode, Shader.TileMode ymode) Sets the repeat behavior of this drawable on both axis.
  void	setTileModeY(Shader.TileMode mode) Sets the repeat behavior of this drawable on the Y axis.

  • Methods inherited from class android.graphics.drawable.Drawable

    clearColorFilter, copyBounds, copyBounds, createFromPath, createFromResourceStream, createFromResourceStream, createFromStream, createFromXml, createFromXmlInner, getBounds, getCallback, getCurrent, getLayoutDirection, getLayoutInsets, getLevel, getMinimumHeight, getMinimumWidth, getPadding, getState, getTransparentRegion, invalidateSelf, isStateful, isVisible, jumpToCurrentState, onLevelChange, onStateChange, resolveOpacity, scheduleSelf, setBounds, setBounds, setCallback, setChangingConfigurations, setColorFilter, setLayoutDirection, setLevel, setState, setVisible, unscheduleSelf

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Constructor Detail

  • BitmapDrawable

    @Deprecated
    public BitmapDrawable()

    Deprecated. Use BitmapDrawable(Resources) to ensure that the drawable has correctly set its target density.
    Create an empty drawable, not dealing with density.

  • BitmapDrawable

    public BitmapDrawable(Resources res)

    Create an empty drawable, setting initial target density based on the display metrics of the resources.

  • BitmapDrawable

    @Deprecated
    public BitmapDrawable(Bitmap bitmap)

    Deprecated. Use BitmapDrawable(Resources, Bitmap) to ensure that the drawable has correctly set its target density.
    Create drawable from a bitmap, not dealing with density.

  • BitmapDrawable

    public BitmapDrawable(Resources res,
                  Bitmap bitmap)

    Create drawable from a bitmap, setting initial target density based on the display metrics of the resources.

  • BitmapDrawable

    @Deprecated
    public BitmapDrawable(String filepath)

    Deprecated. Use BitmapDrawable(Resources, String) to ensure that the drawable has correctly set its target density.
    Create a drawable by opening a given file path and decoding the bitmap.

  • BitmapDrawable

    public BitmapDrawable(Resources res,
                  String filepath)

    Create a drawable by opening a given file path and decoding the bitmap.

  • BitmapDrawable

    @Deprecated
    public BitmapDrawable(InputStream is)

    Deprecated. Use BitmapDrawable(Resources, java.io.InputStream) to ensure that the drawable has correctly set its target density.
    Create a drawable by decoding a bitmap from the given input stream.

  • BitmapDrawable

    public BitmapDrawable(Resources res,
                  InputStream is)

    Create a drawable by decoding a bitmap from the given input stream.

• Method Detail

  • getPaint

    public final Paint getPaint()

    Returns the paint used to render this drawable.

  • getBitmap

    public final Bitmap getBitmap()

    Returns the bitmap used by this drawable to render. May be null.

  • setTargetDensity

    public void setTargetDensity(Canvas canvas)

    Set the density scale at which this drawable will be rendered. This method assumes the drawable will be rendered at the same density as the specified canvas.

    Parameters:

    canvas - The Canvas from which the density scale must be obtained.

    See Also:

    Bitmap.setDensity(int), Bitmap.getDensity()

  • setTargetDensity

    public void setTargetDensity(DisplayMetrics metrics)

    Set the density scale at which this drawable will be rendered.

    Parameters:

    metrics - The DisplayMetrics indicating the density scale for this drawable.

    See Also:

    Bitmap.setDensity(int), Bitmap.getDensity()

  • setTargetDensity

    public void setTargetDensity(int density)

    Set the density at which this drawable will be rendered.

    Parameters:

    density - The density scale for this drawable.

    See Also:

    Bitmap.setDensity(int), Bitmap.getDensity()

  • getGravity

    public int getGravity()

    Get the gravity used to position/stretch the bitmap within its bounds. See android.view.Gravity

    Returns:

    the gravity applied to the bitmap

  • setGravity

    public void setGravity(int gravity)

    Set the gravity used to position/stretch the bitmap within its bounds. See android.view.Gravity

    Parameters:

    gravity - the gravity

  • setAntiAlias

    public void setAntiAlias(boolean aa)

    Enables or disables anti-aliasing for this drawable. Anti-aliasing affects the edges of the bitmap only so it applies only when the drawable is rotated.

    Parameters:

    aa - True if the bitmap should be anti-aliased, false otherwise.

  • setFilterBitmap

    public void setFilterBitmap(boolean filter)

    Description copied from class: Drawable
    Set to true to have the drawable filter its bitmap when scaled or rotated (for drawables that use bitmaps). If the drawable does not use bitmaps, this call is ignored. This can improve the look when scaled or rotated, but also slows down the drawing.

    Overrides:

    setFilterBitmap in class Drawable

  • setDither

    public void setDither(boolean dither)

    Description copied from class: Drawable
    Set to true to have the drawable dither its colors when drawn to a device with fewer than 8-bits per color component. This can improve the look on those devices, but can also slow down the drawing a little.

    Overrides:

    setDither in class Drawable

  • getTileModeX

    public Shader.TileMode getTileModeX()

    Indicates the repeat behavior of this drawable on the X axis.

    Returns:

    Shader.TileMode#CLAMP if the bitmap does not repeat, Shader.TileMode#REPEAT or Shader.TileMode#MIRROR otherwise.

  • getTileModeY

    public Shader.TileMode getTileModeY()

    Indicates the repeat behavior of this drawable on the Y axis.

    Returns:

    Shader.TileMode#CLAMP if the bitmap does not repeat, Shader.TileMode#REPEAT or Shader.TileMode#MIRROR otherwise.

  • setTileModeX

    public void setTileModeX(Shader.TileMode mode)

    Sets the repeat behavior of this drawable on the X axis. By default, the drawable does not repeat its bitmap. Using Shader.TileMode#REPEAT or Shader.TileMode#MIRROR the bitmap can be repeated (or tiled) if the bitmap is smaller than this drawable.

    Parameters:

    mode - The repeat mode for this drawable.

    See Also:

    setTileModeY(android.graphics.Shader.TileMode), setTileModeXY(android.graphics.Shader.TileMode, android.graphics.Shader.TileMode)

  • setTileModeY

    public final void setTileModeY(Shader.TileMode mode)

    Sets the repeat behavior of this drawable on the Y axis. By default, the drawable does not repeat its bitmap. Using Shader.TileMode#REPEAT or Shader.TileMode#MIRROR the bitmap can be repeated (or tiled) if the bitmap is smaller than this drawable.

    Parameters:

    mode - The repeat mode for this drawable.

    See Also:

    setTileModeX(android.graphics.Shader.TileMode), setTileModeXY(android.graphics.Shader.TileMode, android.graphics.Shader.TileMode)

  • setTileModeXY

    public void setTileModeXY(Shader.TileMode xmode,
                     Shader.TileMode ymode)

    Sets the repeat behavior of this drawable on both axis. By default, the drawable does not repeat its bitmap. Using Shader.TileMode#REPEAT or Shader.TileMode#MIRROR the bitmap can be repeated (or tiled) if the bitmap is smaller than this drawable.

    Parameters:

    xmode - The X repeat mode for this drawable.

    ymode - The Y repeat mode for this drawable.

    See Also:

    setTileModeX(android.graphics.Shader.TileMode), setTileModeY(android.graphics.Shader.TileMode)

  • getChangingConfigurations

    public int getChangingConfigurations()

    Description copied from class: Drawable
    Return a mask of the configuration parameters for which this drawable may change, requiring that it be re-created. The default implementation returns whatever was provided through Drawable.setChangingConfigurations(int) or 0 by default. Subclasses may extend this to or in the changing configurations of any other drawables they hold.

    Overrides:

    getChangingConfigurations in class Drawable

    Returns:

    Returns a mask of the changing configuration parameters, as defined by Configuration.

    See Also:

    Configuration

  • onBoundsChange

    protected void onBoundsChange(Rect bounds)

    Description copied from class: Drawable
    Override this in your subclass to change appearance if you recognize the specified state.

    Overrides:

    onBoundsChange in class Drawable

  • draw

    public void draw(Canvas canvas)

    Description copied from class: Drawable
    Draw in its bounds (set via setBounds) respecting optional effects such as alpha (set via setAlpha) and color filter (set via setColorFilter).

    Specified by:

    draw in class Drawable

    Parameters:

    canvas - The canvas to draw into

  • setAlpha

    public void setAlpha(int alpha)

    Description copied from class: Drawable
    Specify an alpha value for the drawable. 0 means fully transparent, and 255 means fully opaque.

    Specified by:

    setAlpha in class Drawable

  • setColorFilter

    public void setColorFilter(ColorFilter cf)

    Description copied from class: Drawable
    Specify an optional colorFilter for the drawable. Pass null to remove any filters.

    Specified by:

    setColorFilter in class Drawable

  • mutate

    public Drawable mutate()

    A mutable BitmapDrawable still shares its Bitmap with any other Drawable that comes from the same resource.

    Overrides:

    mutate in class Drawable

    Returns:

    This drawable.

    See Also:

    Drawable.ConstantState, Drawable.getConstantState()

  • inflate

    public void inflate(Resources r,
               XmlPullParser parser,
               AttributeSet attrs)
                 throws XmlPullParserException,
                        IOException

    Description copied from class: Drawable
    Inflate this Drawable from an XML resource.

    Overrides:

    inflate in class Drawable

    Throws:

    XmlPullParserException

    IOException

  • getIntrinsicWidth

    public int getIntrinsicWidth()

    Description copied from class: Drawable
    Return the intrinsic width of the underlying drawable object. Returns -1 if it has no intrinsic width, such as with a solid color.

    Overrides:

    getIntrinsicWidth in class Drawable

  • getIntrinsicHeight

    public int getIntrinsicHeight()

    Description copied from class: Drawable
    Return the intrinsic height of the underlying drawable object. Returns -1 if it has no intrinsic height, such as with a solid color.

    Overrides:

    getIntrinsicHeight in class Drawable

  • getOpacity

    public int getOpacity()

    Description copied from class: Drawable
    Return the opacity/transparency of this Drawable. The returned value is one of the abstract format constants in PixelFormat: PixelFormat.UNKNOWN, PixelFormat.TRANSLUCENT, PixelFormat.TRANSPARENT, or PixelFormat.OPAQUE.

    Generally a Drawable should be as conservative as possible with the value it returns. For example, if it contains multiple child drawables and only shows one of them at a time, if only one of the children is TRANSLUCENT and the others are OPAQUE then TRANSLUCENT should be returned. You can use the method Drawable.resolveOpacity(int, int) to perform a standard reduction of two opacities to the appropriate single output.

    Note that the returned value does not take into account a custom alpha or color filter that has been applied by the client through the Drawable.setAlpha(int) or Drawable.setColorFilter(android.graphics.ColorFilter) methods.

    Specified by:

    getOpacity in class Drawable

    Returns:

    int The opacity class of the Drawable.

    See Also:

    PixelFormat

  • getConstantState

    public final Drawable.ConstantState getConstantState()

    Description copied from class: Drawable
    Return a Drawable.ConstantState instance that holds the shared state of this Drawable. q

    Overrides:

    getConstantState in class Drawable

    Returns:

    The ConstantState associated to that Drawable.

    See Also:

    Drawable.ConstantState, Drawable.mutate()