CrossfadeDrawable

public class CrossfadeDrawable
extends Drawable implements Drawable.Callback

java.lang.Object
↳	android.graphics.drawable.Drawable
	↳	android.support.wearable.view.CrossfadeDrawable

包含两个子drawable，并提供直接调整两者之间混合的方法。

基础层总是被涂成完全不透明的，并且根据当前进度值调整衰落层。

也可以看看：

Summary

Public constructors
`CrossfadeDrawable()`

Public methods
`void`	`clearColorFilter()`
`void`	`draw(Canvas canvas)`
`int`	`getAlpha()`
`Drawable`	`getBase()`
`int`	`getChangingConfigurations()`
`Drawable`	`getFading()`
`int`	`getIntrinsicHeight()`
`int`	`getIntrinsicWidth()`
`int`	`getOpacity()`
`void`	`invalidateDrawable(Drawable who)`
`boolean`	`isStateful()`
`void`	`jumpToCurrentState()`
`void`	`scheduleDrawable(Drawable who, Runnable what, long when)`
`void`	`setAlpha(int alpha)`
`void`	`setBase(Drawable d)` 设置基础图层。
`void`	`setChangingConfigurations(int configs)`
`void`	`setColorFilter(ColorFilter cf)`
`void`	`setColorFilter(int color, PorterDuff.Mode mode)`
`void`	`setDither(boolean dither)`
`void`	`setFading(Drawable d)` 为衰落层设置图像。
`void`	`setFilterBitmap(boolean filter)`
`void`	`setProgress(float progress)`
`void`	`unscheduleDrawable(Drawable who, Runnable what)`

Protected methods
`void`	`onBoundsChange(Rect bounds)`
`boolean`	`onLevelChange(int level)`
`boolean`	`onStateChange(int[] state)`

Inherited methods

From class android.graphics.drawable.Drawable

`void`	`applyTheme(Resources.Theme arg0)`
`boolean`	`canApplyTheme()`
`void`	`clearColorFilter()`
`void`	`clearMutated()`
`final Rect`	`copyBounds()`
`final void`	`copyBounds(Rect arg0)`
`static Drawable`	`createFromPath(String arg0)`
`static Drawable`	`createFromResourceStream(Resources arg0, TypedValue arg1, InputStream arg2, String arg3, BitmapFactory.Options arg4)`
`static Drawable`	`createFromResourceStream(Resources arg0, TypedValue arg1, InputStream arg2, String arg3)`
`static Drawable`	`createFromStream(InputStream arg0, String arg1)`
`static Drawable`	`createFromXml(Resources arg0, XmlPullParser arg1)`
`static Drawable`	`createFromXml(Resources arg0, XmlPullParser arg1, Resources.Theme arg2)`
`static Drawable`	`createFromXmlInner(Resources arg0, XmlPullParser arg1, AttributeSet arg2, Resources.Theme arg3)`
`static Drawable`	`createFromXmlInner(Resources arg0, XmlPullParser arg1, AttributeSet arg2)`
`abstract void`	`draw(Canvas arg0)`
`int`	`getAlpha()`
`final Rect`	`getBounds()`
`Drawable.Callback`	`getCallback()`
`int`	`getChangingConfigurations()`
`ColorFilter`	`getColorFilter()`
`Drawable.ConstantState`	`getConstantState()`
`Drawable`	`getCurrent()`
`Rect`	`getDirtyBounds()`
`void`	`getHotspotBounds(Rect arg0)`
`int`	`getIntrinsicHeight()`
`int`	`getIntrinsicWidth()`
`int`	`getLayoutDirection()`
`final int`	`getLevel()`
`int`	`getMinimumHeight()`
`int`	`getMinimumWidth()`
`abstract int`	`getOpacity()`
`Insets`	`getOpticalInsets()`
`void`	`getOutline(Outline arg0)`
`boolean`	`getPadding(Rect arg0)`
`int[]`	`getState()`
`Region`	`getTransparentRegion()`
`void`	`inflate(Resources arg0, XmlPullParser arg1, AttributeSet arg2, Resources.Theme arg3)`
`void`	`inflate(Resources arg0, XmlPullParser arg1, AttributeSet arg2)`
`void`	`invalidateSelf()`
`boolean`	`isAutoMirrored()`
`boolean`	`isFilterBitmap()`
`boolean`	`isProjected()`
`boolean`	`isStateful()`
`final boolean`	`isVisible()`
`void`	`jumpToCurrentState()`
`Drawable`	`mutate()`
`void`	`onBoundsChange(Rect arg0)`
`boolean`	`onLayoutDirectionChanged(int arg0)`
`boolean`	`onLevelChange(int arg0)`
`boolean`	`onStateChange(int[] arg0)`
`static PorterDuff.Mode`	`parseTintMode(int arg0, PorterDuff.Mode arg1)`
`static int`	`resolveOpacity(int arg0, int arg1)`
`void`	`scheduleSelf(Runnable arg0, long arg1)`
`abstract void`	`setAlpha(int arg0)`
`void`	`setAutoMirrored(boolean arg0)`
`void`	`setBounds(int arg0, int arg1, int arg2, int arg3)`
`void`	`setBounds(Rect arg0)`
`final void`	`setCallback(Drawable.Callback arg0)`
`void`	`setChangingConfigurations(int arg0)`
`void`	`setColorFilter(int arg0, PorterDuff.Mode arg1)`
`abstract void`	`setColorFilter(ColorFilter arg0)`
`void`	`setDither(boolean arg0)`
`void`	`setFilterBitmap(boolean arg0)`
`void`	`setHotspot(float arg0, float arg1)`
`void`	`setHotspotBounds(int arg0, int arg1, int arg2, int arg3)`
`final boolean`	`setLayoutDirection(int arg0)`
`final boolean`	`setLevel(int arg0)`
`boolean`	`setState(int[] arg0)`
`void`	`setTint(int arg0)`
`void`	`setTintList(ColorStateList arg0)`
`void`	`setTintMode(PorterDuff.Mode arg0)`
`boolean`	`setVisible(boolean arg0, boolean arg1)`
`void`	`setXfermode(Xfermode arg0)`
`void`	`unscheduleSelf(Runnable arg0)`

From class java.lang.Object

From interface android.graphics.drawable.Drawable.Callback

Public constructors

CrossfadeDrawable

CrossfadeDrawable ()

Public methods

clearColorFilter

void clearColorFilter ()

draw

void draw (Canvas canvas)

Parameters
`canvas`	`Canvas`

getAlpha

int getAlpha ()

Returns
`int`

getBase

Drawable getBase ()

Returns
`Drawable`

getChangingConfigurations

int getChangingConfigurations ()

Returns
`int`

getFading

Drawable getFading ()

Returns
`Drawable`

getIntrinsicHeight

int getIntrinsicHeight ()

Returns
`int`

getIntrinsicWidth

int getIntrinsicWidth ()

Returns
`int`

getOpacity

int getOpacity ()

Returns
`int`

invalidateDrawable

void invalidateDrawable (Drawable who)

Parameters
`who`	`Drawable`

isStateful

boolean isStateful ()

Returns
`boolean`

jumpToCurrentState

void jumpToCurrentState ()

scheduleDrawable

void scheduleDrawable (Drawable who,
                Runnable what,
                long when)

Parameters
`who`	`Drawable`
`what`	`Runnable`
`when`	`long`

setAlpha

void setAlpha (int alpha)

Parameters
`alpha`	`int`

setBase

void setBase (Drawable d)

设置基础图层。这个drawable的不透明度保持不变。进度== 0时完全可见，进度== 1时完全遮蔽。

Parameters
`d`	`Drawable`

setChangingConfigurations

void setChangingConfigurations (int configs)

Parameters
`configs`	`int`

setColorFilter

void setColorFilter (ColorFilter cf)

Parameters
`cf`	`ColorFilter`

setColorFilter

void setColorFilter (int color,
                PorterDuff.Mode mode)

Parameters
`color`	`int`
`mode`	`PorterDuff.Mode`

setDither

void setDither (boolean dither)

Parameters
`dither`	`boolean`

setFading

void setFading (Drawable d)

为衰落层设置图像。这个可绘制的不透明度将与进度值直接成比例地变化。当进度== 0时它是不可见的，当进度== 1时它是完全不透明的。

Parameters
`d`	`Drawable`

setFilterBitmap

void setFilterBitmap (boolean filter)

Parameters
`filter`	`boolean`

setProgress

void setProgress (float progress)

Parameters
`progress`	`float`

unscheduleDrawable

void unscheduleDrawable (Drawable who,
                Runnable what)

Parameters
`who`	`Drawable`
`what`	`Runnable`

Protected methods

onBoundsChange

void onBoundsChange (Rect bounds)

Parameters
`bounds`	`Rect`

onLevelChange

boolean onLevelChange (int level)

Parameters
`level`	`int`

Returns
`boolean`

onStateChange

boolean onStateChange (int[] state)

Parameters
`state`	`int`

Returns
`boolean`

CrossfadeDrawable

Summary

Public constructors

Public methods

Protected methods

Inherited methods

Public constructors

CrossfadeDrawable

Public methods

clearColorFilter

draw

getAlpha

getBase

getChangingConfigurations

getFading

getIntrinsicHeight

getIntrinsicWidth

getOpacity

invalidateDrawable

isStateful

jumpToCurrentState

scheduleDrawable

setAlpha

setBase

setChangingConfigurations

setColorFilter

setColorFilter

setDither

setFading

setFilterBitmap

setProgress

unscheduleDrawable

Protected methods

onBoundsChange

onLevelChange

onStateChange

Interfaces

Classes