ViewUtils

io.scanbot.sdk.utils.ViewUtils

```
public class ViewUtils
```
Contains tools for usage in View animations and transformations. Also contains methods to handle major ui bug-fixes.

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static class`	`ViewUtils.DefaultAnimationListener` Implementation of Animator.AnimatorListener that does nothing. Used as base class for creating anonymous classes, which doesn't force you to override all the methods. Also, ensures that `ViewUtils.DefaultAnimationListener.onAnimationFinished` will be invoked not more than once per animation (which, for instance, can be possible on HTC One X).
`static class`	`ViewUtils.HardwareLayerAnimationListener` Applies `View#LAYER_TYPE_HARDWARE` to provided View on animation start and returns in to previous layer on animation finish.

Field Summary

Fields
Modifier and Type	Field and Description
`static float`	`ALPHA_DEFAULT`
`static float`	`ALPHA_TRANSPARENT`
`static android.view.ActionMode.Callback`	`DISABLED_ACTIONMODE_CALLBACK` Use this ActionMode.Callback if action mode should be disabled
`static float`	`SCALE_DEFAULT`
`static float`	`TRANSLATION_DEFAULT`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static float`	`fitBitmapToView()` Convenient alternative for `ViewUtils.fitRectToView` which creates rectangle from Bitmap
`static float`	`fitDrawableToView()` Convenient alternative for `ViewUtils.fitRectToView` which creates rectangle from intrinsic size of Drawable
`static float`	`fitRectToView()`
`static android.graphics.Rect`	`getViewBounds()`
`static void`	`postOnPreDraw()` Executes Runnable right before global draw event, which is convenient if you want to be sure that provided View correctly calculated it's size.
`static void`	`restoreViewTransformation()` Restores transformation values.
`static void`	`saveViewTransformation()` Saves View transformation parameters (translation, scale, rotation, alpha), so they can later be restored with `ViewUtils.restoreViewTransformation`. Note, that this implementation uses `View#setTag(Object)` method to save parameters, so any existing tags will be overwritten.

- Field Detail
  - ALPHA_DEFAULT
```
public static float ALPHA_DEFAULT
```
  - ALPHA_TRANSPARENT
```
public static float ALPHA_TRANSPARENT
```
  - SCALE_DEFAULT
```
public static float SCALE_DEFAULT
```
  - TRANSLATION_DEFAULT
```
public static float TRANSLATION_DEFAULT
```
  - DISABLED_ACTIONMODE_CALLBACK
```
public static android.view.ActionMode.Callback DISABLED_ACTIONMODE_CALLBACK
```
    Use this ActionMode.Callback if action mode should be disabled
- Method Detail
  - saveViewTransformation
```
public static void saveViewTransformation()
```
    Saves View transformation parameters (translation, scale, rotation, alpha), so they can later be restored with ViewUtils.restoreViewTransformation. Note, that this implementation uses View#setTag(Object) method to save parameters, so any existing tags will be overwritten.
    
    See Also:
    
    ViewUtils.restoreViewTransformation
  - restoreViewTransformation
```
public static void restoreViewTransformation()
```
    Restores transformation values.
    
    Throws:
    
    - if values were corrupted (by direct invocation of View#setTag(Object))
  - postOnPreDraw
```
public static void postOnPreDraw()
```
    Executes Runnable right before global draw event, which is convenient if you want to be sure that provided View correctly calculated it's size.
  - getViewBounds
```
public static android.graphics.Rect getViewBounds()
```
    Returns:
    
    visible rectangle of View
  - fitBitmapToView
```
public static float fitBitmapToView()
```
    Convenient alternative for ViewUtils.fitRectToView which creates rectangle from Bitmap
    
    See Also:
    
    ViewUtils.fitRectToView
  - fitDrawableToView
```
public static float fitDrawableToView()
```
    Convenient alternative for ViewUtils.fitRectToView which creates rectangle from intrinsic size of Drawable
    
    See Also:
    
    ViewUtils.fitRectToView
  - fitRectToView
```
public static float fitRectToView()
```
    Returns:
    
    new scale of rotated RectF

Class ViewUtils

Nested Class Summary

Field Summary

Method Summary

Field Detail

ALPHA_DEFAULT

ALPHA_TRANSPARENT

SCALE_DEFAULT

TRANSLATION_DEFAULT

DISABLED_ACTIONMODE_CALLBACK

Method Detail

saveViewTransformation

restoreViewTransformation

postOnPreDraw

getViewBounds

fitBitmapToView

fitDrawableToView

fitRectToView