| java.lang.Object | |||
| ↳ | android.graphics.drawable.Drawable | ||
| ↳ | com.facebook.drawee.drawable.ForwardingDrawable | ||
| ↳ | com.facebook.drawee.drawable.ScaleTypeDrawable | ||
Class Overview
Drawable that can scale underlying drawable based on specified ScalingUtils.ScaleType options.
Based on android.widget.ImageView.ScaleType.
Summary
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Inherited Fields | |||||||||||
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 From class
com.facebook.drawee.drawable.ForwardingDrawable
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| Public Constructors | |||||||||||
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ScaleTypeDrawable(Drawable drawable, ScalingUtils.ScaleType scaleType)
Creates a new ScaleType drawable with given underlying drawable and scale type.
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ScaleTypeDrawable(Drawable drawable, ScalingUtils.ScaleType scaleType, PointF focusPoint)
Creates a new ScaleType drawable with given underlying drawable, scale type, and focus point.
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| Public Methods | |||||||||||
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| void | draw(Canvas canvas) | ||||||||||
| PointF |
getFocusPoint()
Gets the focus point.
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| ScalingUtils.ScaleType |
getScaleType()
Gets the current scale type.
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| void |
getTransform(Matrix transform)
TransformationCallback method
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| Drawable |
setCurrent(Drawable newDelegate)
Sets a new drawable to be the delegate, and returns the old one (or null).
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| void |
setFocusPoint(PointF focusPoint)
Sets the focus point.
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| void |
setScaleType(ScalingUtils.ScaleType scaleType)
Sets the scale type.
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| Protected Methods | |||||||||||
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| void | onBoundsChange(Rect bounds) | ||||||||||
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Inherited Methods | |||||||||||
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From class
com.facebook.drawee.drawable.ForwardingDrawable
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From class
android.graphics.drawable.Drawable
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From class
java.lang.Object
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From interface
android.graphics.drawable.Drawable.Callback
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From interface
com.facebook.drawee.drawable.DrawableParent
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From interface
com.facebook.drawee.drawable.TransformAwareDrawable
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From interface
com.facebook.drawee.drawable.TransformCallback
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Public Constructors
public ScaleTypeDrawable (Drawable drawable, ScalingUtils.ScaleType scaleType)
Creates a new ScaleType drawable with given underlying drawable and scale type.
Parameters
| drawable | underlying drawable to apply scale type on |
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| scaleType | scale type to be applied |
public ScaleTypeDrawable (Drawable drawable, ScalingUtils.ScaleType scaleType, PointF focusPoint)
Creates a new ScaleType drawable with given underlying drawable, scale type, and focus point.
Parameters
| drawable | underlying drawable to apply scale type on |
|---|---|
| scaleType | scale type to be applied |
| focusPoint | focus point of the image |
Public Methods
public void draw (Canvas canvas)
public PointF getFocusPoint ()
Gets the focus point.
Returns
- focus point of the image
public void getTransform (Matrix transform)
TransformationCallback method
Parameters
| transform | Matrix that is applied to the drawable by the parent drawables. |
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public Drawable setCurrent (Drawable newDelegate)
Sets a new drawable to be the delegate, and returns the old one (or null).
This method will cause the drawable to be invalidated.
Returns
- the previous delegate
public void setFocusPoint (PointF focusPoint)
Sets the focus point. If ScaleType.FOCUS_CROP is used, focus point will attempted to be centered within a view. Each coordinate is a real number in [0,1] range, in the coordinate system where top-left corner of the image corresponds to (0, 0) and the bottom-right corner corresponds to (1, 1).
Parameters
| focusPoint | focus point of the image |
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public void setScaleType (ScalingUtils.ScaleType scaleType)
Sets the scale type.
Parameters
| scaleType | scale type to set |
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