ViewAware (lib_baseui API)

java.lang.Object
- com.nostra13.universalimageloader.core.imageaware.ViewAware

所有已实现的接口:

ImageAware

直接已知子类:

ImageViewAware
```
public abstract class ViewAware
extends Object
implements ImageAware
```
Wrapper for Android View. Keeps weak reference of View to prevent memory leaks.

从以下版本开始:

1.9.2

字段概要

字段
限定符和类型	字段和说明
`protected boolean`	`checkActualViewSize`
`protected Reference<android.view.View>`	`viewRef`
`static String`	`WARN_CANT_SET_BITMAP`
`static String`	`WARN_CANT_SET_DRAWABLE`

构造器概要

构造器
构造器和说明

ViewAware(android.view.View view)
Constructor.

ViewAware(android.view.View view, boolean checkActualViewSize)
Constructor

构造器
构造器和说明
`ViewAware(android.view.View view)` Constructor.
`ViewAware(android.view.View view, boolean checkActualViewSize)` Constructor

方法概要

所有方法实例方法抽象方法具体方法
限定符和类型	方法和说明
`int`	`getHeight()` Returns height of image aware view.
`int`	`getId()` Returns ID of image aware view.
`ViewScaleType`	`getScaleType()` Returns scale type which is used for scaling image for this image aware view.
`int`	`getWidth()` Returns width of image aware view.
`android.view.View`	`getWrappedView()` Returns wrapped Android `View`.
`boolean`	`isCollected()` Returns a flag whether image aware view is collected by GC or whatsoever.
`boolean`	`setImageBitmap(android.graphics.Bitmap bitmap)` Sets image bitmap into this image aware view.
`protected abstract void`	`setImageBitmapInto(android.graphics.Bitmap bitmap, android.view.View view)` Should set Bitmap into incoming view.
`boolean`	`setImageDrawable(android.graphics.drawable.Drawable drawable)` Sets image drawable into this image aware view.
`protected abstract void`	`setImageDrawableInto(android.graphics.drawable.Drawable drawable, android.view.View view)` Should set drawable into incoming view.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - WARN_CANT_SET_DRAWABLE
```
public static final String WARN_CANT_SET_DRAWABLE
```
    另请参阅:
    
    常量字段值
  - WARN_CANT_SET_BITMAP
```
public static final String WARN_CANT_SET_BITMAP
```
    另请参阅:
    
    常量字段值
  - viewRef
```
protected Reference<android.view.View> viewRef
```
  - checkActualViewSize
```
protected boolean checkActualViewSize
```
- 构造器详细资料
  - ViewAware
```
public ViewAware(android.view.View view)
```
    Constructor.
    References ImageViewAware(imageView, true).
    
    参数:
    
    view - View to work with
  - ViewAware
```
public ViewAware(android.view.View view,
                 boolean checkActualViewSize)
```
    Constructor
    
    参数:
    
    view - View to work with
    
    checkActualViewSize - true - then getWidth() and getHeight() will check actual size of View. It can cause known issues like this. But it helps to save memory because memory cache keeps bitmaps of actual (less in general) size.
    false - then getWidth() and getHeight() will NOT consider actual size of View, just layout parameters.
    If you set 'false' it's recommended 'android:layout_width' and 'android:layout_height' (or 'android:maxWidth' and 'android:maxHeight') are set with concrete values. It helps to save memory.
- 方法详细资料
  - getWidth
```
public int getWidth()
```
    Returns width of image aware view. This value is used to define scale size for original image. Can return 0 if width is undefined.
    Is called on UI thread if ImageLoader was called on UI thread. Otherwise - on background thread.
    Width is defined by target view parameters, configuration parameters or device display dimensions.
    Size computing algorithm (go by steps until get non-zero value):
    1) Get the actual drawn getWidth() of the View
    2) Get layout_width
    
    指定者:
    
    getWidth 在接口中 ImageAware
  - getHeight
```
public int getHeight()
```
    Returns height of image aware view. This value is used to define scale size for original image. Can return 0 if height is undefined.
    Is called on UI thread if ImageLoader was called on UI thread. Otherwise - on background thread.
    Height is defined by target view parameters, configuration parameters or device display dimensions.
    Size computing algorithm (go by steps until get non-zero value):
    1) Get the actual drawn getHeight() of the View
    2) Get layout_height
    
    指定者:
    
    getHeight 在接口中 ImageAware
  - getScaleType
```
public ViewScaleType getScaleType()
```
    从接口复制的说明: ImageAware
    
    Returns scale type which is used for scaling image for this image aware view. Must NOT return null.
    
    指定者:
    
    getScaleType 在接口中 ImageAware
  - getWrappedView
```
public android.view.View getWrappedView()
```
    从接口复制的说明: ImageAware
    
    Returns wrapped Android View. Can return null if no view is wrapped or view was collected by GC.
    Is called on UI thread if ImageLoader was called on UI thread. Otherwise - on background thread.
    
    指定者:
    
    getWrappedView 在接口中 ImageAware
  - isCollected
```
public boolean isCollected()
```
    从接口复制的说明: ImageAware
    
    Returns a flag whether image aware view is collected by GC or whatsoever. If so then ImageLoader stop processing of task for this image aware view and fires ImageLoadingListener#onLoadingCancelled(String, View) callback.
    Mey be called on UI thread if ImageLoader was called on UI thread. Otherwise - on background thread.
    
    指定者:
    
    isCollected 在接口中 ImageAware
    
    返回:
    
    true - if view is collected by GC and ImageLoader should stop processing this image aware view; false - otherwise
  - getId
```
public int getId()
```
    从接口复制的说明: ImageAware
    
    Returns ID of image aware view. Point of ID is similar to Object's hashCode. This ID should be unique for every image view instance and should be the same for same instances. This ID identifies processing task in ImageLoader so ImageLoader won't process two image aware views with the same ID in one time. When ImageLoader get new task it cancels old task with this ID (if any) and starts new task.
    It's reasonable to return hash code of wrapped view (if any) to prevent displaying non-actual images in view because of view re-using.
    
    指定者:
    
    getId 在接口中 ImageAware
  - setImageDrawable
```
public boolean setImageDrawable(android.graphics.drawable.Drawable drawable)
```
    从接口复制的说明: ImageAware
    
    Sets image drawable into this image aware view.
    Displays drawable in this image aware view for empty Uri, on loading or on loading fail. These drawables can be specified in display options.
    Also can be called in BitmapDisplayer.< br /> Is called on UI thread if ImageLoader was called on UI thread. Otherwise - on background thread.
    
    指定者:
    
    setImageDrawable 在接口中 ImageAware
    
    返回:
    
    true if drawable was set successfully; false - otherwise
  - setImageBitmap
```
public boolean setImageBitmap(android.graphics.Bitmap bitmap)
```
    从接口复制的说明: ImageAware
    
    Sets image bitmap into this image aware view.
    Displays loaded and decoded image Bitmap in this image view aware. Actually it's used only in BitmapDisplayer.< br /> Is called on UI thread if ImageLoader was called on UI thread. Otherwise - on background thread.
    
    指定者:
    
    setImageBitmap 在接口中 ImageAware
    
    返回:
    
    true if bitmap was set successfully; false - otherwise
  - setImageDrawableInto
```
protected abstract void setImageDrawableInto(android.graphics.drawable.Drawable drawable,
                                             android.view.View view)
```
    Should set drawable into incoming view. Incoming view is guaranteed not null.
    This method is called on UI thread.
  - setImageBitmapInto
```
protected abstract void setImageBitmapInto(android.graphics.Bitmap bitmap,
                                           android.view.View view)
```
    Should set Bitmap into incoming view. Incoming view is guaranteed not null.< br /> This method is called on UI thread.

类 ViewAware

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

WARN_CANT_SET_DRAWABLE

WARN_CANT_SET_BITMAP

viewRef

checkActualViewSize

构造器详细资料

ViewAware

ViewAware

方法详细资料

getWidth

getHeight

getScaleType

getWrappedView

isCollected

getId

setImageDrawable

setImageBitmap

setImageDrawableInto

setImageBitmapInto