ImageFilterView
public
class
ImageFilterView
extends AppCompatImageView
java.lang.Object | ||
↳ | android.support.v7.widget.AppCompatImageView | |
↳ | android.support.constraint.utils.ImageFilterView |
An ImageView that can display, combine and filter images. Added in 2.0
Subclass of ImageView to handle various common filtering operations
ImageFilterViewattributes
altSrc | Provide and alternative image to the src image to allow cross fading |
saturation | Sets the saturation of the image. 0 = grayscale, 1 = original, 2 = hyper saturated |
brightness | Sets the brightness of the image. 0 = black, 1 = original, 2 = twice as bright |
warmth | This adjust the apparent color temperature of the image. 1=neutral, 2=warm, .5=cold |
contrast | This sets the contrast. 1 = unchanged, 0 = gray, 2 = high contrast |
crossfade | Set the current mix between the two images. 0=src 1= altSrc image |
round | (id) call the TransitionListener with this trigger id |
roundPercent &nbs; | Set the corner radius of curvature as a fraction of the smaller side. For squares 1 will result in a circle |
overlay | Defines whether the alt image will be faded in on top of the original image or if it will be crossfaded with it. Default is true. Set to false for semitransparent objects |
Summary
Public constructors | |
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ImageFilterView(Context context)
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ImageFilterView(Context context, AttributeSet attrs)
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ImageFilterView(Context context, AttributeSet attrs, int defStyleAttr)
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Public methods | |
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void
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draw(Canvas canvas)
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float
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getBrightness()
Returns the currently applied brightness |
float
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getContrast()
Returns the currently applied contrast |
float
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getCrossfade()
Returns the currently applied crossfade. |
float
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getRound()
Get the corner radius of curvature NaN = RoundPercent in effect. |
float
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getRoundPercent()
Get the fractional corner radius of curvature. |
float
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getSaturation()
Returns the currently applied saturation |
float
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getWarmth()
Returns the currently applied warmth |
void
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setBrightness(float brightness)
sets the brightness of the image; 0 = black, 1 = original, 2 = twice as bright |
void
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setContrast(float contrast)
This sets the contrast. |
void
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setCrossfade(float crossfade)
Set the current mix between the two images that can be set on this view. |
void
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setRound(float round)
Set the corner radius of curvature |
void
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setRoundPercent(float round)
Set the corner radius of curvature as a fraction of the smaller side. |
void
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setSaturation(float saturation)
sets the saturation of the image; 0 = grayscale, 1 = original, 2 = hyper saturated |
void
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setWarmth(float warmth)
This makes the apparent color temperature of the image warmer or colder. |
Inherited methods | |
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Public constructors
ImageFilterView
public ImageFilterView (Context context)
Parameters | |
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context |
Context |
ImageFilterView
public ImageFilterView (Context context, AttributeSet attrs)
Parameters | |
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context |
Context |
attrs |
AttributeSet |
ImageFilterView
public ImageFilterView (Context context, AttributeSet attrs, int defStyleAttr)
Parameters | |
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context |
Context |
attrs |
AttributeSet |
defStyleAttr |
int |
Public methods
draw
public void draw (Canvas canvas)
Parameters | |
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canvas |
Canvas |
getBrightness
public float getBrightness ()
Returns the currently applied brightness
Returns | |
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float |
brightness 0 = black, 1 = original, 2 = twice as bright |
getContrast
public float getContrast ()
Returns the currently applied contrast
Returns | |
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float |
1 = unchanged, 0 = gray, 2 = high contrast |
getCrossfade
public float getCrossfade ()
Returns the currently applied crossfade.
Returns | |
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float |
a number from 0 to 1 |
getRound
public float getRound ()
Get the corner radius of curvature NaN = RoundPercent in effect.
Returns | |
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float |
Radius of curvature |
getRoundPercent
public float getRoundPercent ()
Get the fractional corner radius of curvature.
Returns | |
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float |
Fractional radius of curvature with respect to smallest size |
getSaturation
public float getSaturation ()
Returns the currently applied saturation
Returns | |
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float |
0 = grayscale, 1 = original, 2 = hyper saturated |
getWarmth
public float getWarmth ()
Returns the currently applied warmth
Returns | |
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float |
warmth 1 is neutral, 2 is warm, .5 is cold |
setBrightness
public void setBrightness (float brightness)
sets the brightness of the image; 0 = black, 1 = original, 2 = twice as bright
setContrast
public void setContrast (float contrast)
This sets the contrast. 1 = unchanged, 0 = gray, 2 = high contrast
setCrossfade
public void setCrossfade (float crossfade)
Set the current mix between the two images that can be set on this view.
Parameters | |
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crossfade |
float : a number from 0 to 1
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setRound
public void setRound (float round)
Set the corner radius of curvature
Parameters | |
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round |
float : the radius of curvature NaN = default meaning roundPercent in effect
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setRoundPercent
public void setRoundPercent (float round)
Set the corner radius of curvature as a fraction of the smaller side. For squares 1 will result in a circle
Parameters | |
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round |
float : the radius of curvature as a fraction of the smaller width
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setSaturation
public void setSaturation (float saturation)
sets the saturation of the image; 0 = grayscale, 1 = original, 2 = hyper saturated
setWarmth
public void setWarmth (float warmth)
This makes the apparent color temperature of the image warmer or colder.
Parameters | |
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warmth |
float : 1 is neutral, 2 is warm, .5 is cold
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