获取活动网络信息 @param context 上下文 @return NetworkInfo

Returns the source point at the center of the view. @return the source coordinates current at the center of the view.

Returns {@link GestureController} which is a main engine for all gestures interactions. <p> Use it to apply settings, access and modify image state an

Returns the position within the adapter's data set for the first item displayed on screen. @return The position within the adapter's data set

Returns the proportional width of a given page as a percentage of the ViewPager's measured width from (0.f-1.f] @param position The position of the p

@return Current position within range {@code [0, 1]}, where {@code 0} is for initial (from) position and {@code 1} is for final (to) position. <p> Not

Returns the minimum allowed scale.

Requests 'from' and 'to' views for given ID and starts enter animation when views are ready. @param id Item ID for views lookup @param withAnimation

Starts 'exit' animation from {@code to} view back to {@code from}. @param withAnimation Whether to animate exiting or immediately jump to initial sta

Check to make sure that buffer has not been nulled out due to close; if not return it;

取得动态容器

Returns the minimum allowed scale. @return the minimum scale as a source/view pixels ratio.

Calculates movement area position within viewport area with gravity applied. @param settings Image settings @param out Output rectangle

Handle any IOExceptions thrown. <p> This method provides a point to implement custom exception handling. The default behavior is to re-throw the excep

Resets the selector indices and clear the cached string representation of these indices.

Call to find whether the view is initialised, has dimensions, and will display an image on the next draw. If a preview has been provided, it may be th

Status check. Should return false before initialisation and after recycle. @return true if the decoder is ready to be used.

@param event Motion event @see GestureDetector.OnGestureListener#onDown(MotionEvent)

The list is empty. Clear everything out.