com.nostra13.universalimageloader.core.imageaware

类 ImageViewAware

java.lang.Object

com.nostra13.universalimageloader.core.imageaware.ViewAware

com.nostra13.universalimageloader.core.imageaware.ImageViewAware

所有已实现的接口:

ImageAware

public class ImageViewAware
extends ViewAware

Wrapper for Android ImageView. Keeps weak reference of ImageView to prevent memory leaks.

从以下版本开始:

1.9.0

字段概要

从类继承的字段 com.nostra13.universalimageloader.core.imageaware.ViewAware

checkActualViewSize, viewRef, WARN_CANT_SET_BITMAP, WARN_CANT_SET_DRAWABLE

构造器概要

构造器

构造器和说明
ImageViewAware(android.widget.ImageView imageView) Constructor.
ImageViewAware(android.widget.ImageView imageView, boolean checkActualViewSize) Constructor

方法概要

限定符和类型	方法和说明
int	getHeight() Returns height 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.widget.ImageView	getWrappedView() Returns wrapped Android View.
protected void	setImageBitmapInto(android.graphics.Bitmap bitmap, android.view.View view) Should set Bitmap into incoming view.
protected void	setImageDrawableInto(android.graphics.drawable.Drawable drawable, android.view.View view) Should set drawable into incoming view.

从类继承的方法 com.nostra13.universalimageloader.core.imageaware.ViewAware

getId, isCollected, setImageBitmap, setImageDrawable

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

ImageViewAware

public ImageViewAware(android.widget.ImageView imageView)

Constructor.
References ImageViewAware(imageView, true).

参数:

imageView - ImageView to work with

ImageViewAware

public ImageViewAware(android.widget.ImageView imageView,
                      boolean checkActualViewSize)

Constructor

参数:

imageView - ImageView to work with

checkActualViewSize - true - then getWidth() and getHeight() will check actual size of ImageView. 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 ImageView, 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
3) Get maxWidth.

指定者:

getWidth 在接口中 ImageAware

覆盖:

getWidth 在类中 ViewAware

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
3) Get maxHeight

指定者:

getHeight 在接口中 ImageAware

覆盖:

getHeight 在类中 ViewAware

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

覆盖:

getScaleType 在类中 ViewAware

getWrappedView

public android.widget.ImageView 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

覆盖:

getWrappedView 在类中 ViewAware

setImageDrawableInto

protected void setImageDrawableInto(android.graphics.drawable.Drawable drawable,
                                    android.view.View view)

从类复制的说明: ViewAware

Should set drawable into incoming view. Incoming view is guaranteed not null.
This method is called on UI thread.

指定者:

setImageDrawableInto 在类中 ViewAware

setImageBitmapInto

protected void setImageBitmapInto(android.graphics.Bitmap bitmap,
                                  android.view.View view)

从类复制的说明: ViewAware

Should set Bitmap into incoming view. Incoming view is guaranteed not null.< br /> This method is called on UI thread.

指定者:

setImageBitmapInto 在类中 ViewAware