android.support.v4.widget
Class SwipeRefreshLayout

java.lang.Object
  extended by android.view.View
      extended by android.view.ViewGroup
          extended by android.support.v4.widget.SwipeRefreshLayout
All Implemented Interfaces:
android.graphics.drawable.Drawable.Callback, android.view.accessibility.AccessibilityEventSource, android.view.KeyEvent.Callback, android.view.ViewManager, android.view.ViewParent

public class SwipeRefreshLayout
extends android.view.ViewGroup

The SwipeRefreshLayout should be used whenever the user can refresh the contents of a view via a vertical swipe gesture. The activity that instantiates this view should add an OnRefreshListener to be notified whenever the swipe to refresh gesture is completed. The SwipeRefreshLayout will notify the listener each and every time the gesture is completed again; the listener is responsible for correctly determining when to actually initiate a refresh of its content. If the listener determines there should not be a refresh, it must call setRefreshing(false) to cancel any visual indication of a refresh. If an activity wishes to show just the progress animation, it should call setRefreshing(true). To disable the gesture and progress animation, call setEnabled(false) on the view.

This layout should be made the parent of the view that will be refreshed as a result of the gesture and can only support one direct child. This view will also be made the target of the gesture and will be forced to match both the width and the height supplied in this layout. The SwipeRefreshLayout does not provide accessibility events; instead, a menu item must be provided to allow refresh of the content wherever this gesture is used.


Nested Class Summary
static interface SwipeRefreshLayout.OnRefreshListener
          Classes that wish to be notified when the swipe gesture correctly triggers a refresh should implement this interface.
 
Nested classes/interfaces inherited from class android.view.ViewGroup
android.view.ViewGroup.LayoutParams, android.view.ViewGroup.MarginLayoutParams, android.view.ViewGroup.OnHierarchyChangeListener
 
Nested classes/interfaces inherited from class android.view.View
android.view.View.BaseSavedState, android.view.View.MeasureSpec, android.view.View.OnClickListener, android.view.View.OnCreateContextMenuListener, android.view.View.OnFocusChangeListener, android.view.View.OnKeyListener, android.view.View.OnLongClickListener, android.view.View.OnTouchListener
 
Field Summary
 
Fields inherited from class android.view.ViewGroup
CLIP_TO_PADDING_MASK, FLAG_USE_CHILD_DRAWING_ORDER, FOCUS_AFTER_DESCENDANTS, FOCUS_BEFORE_DESCENDANTS, FOCUS_BLOCK_DESCENDANTS, PERSISTENT_ALL_CACHES, PERSISTENT_ANIMATION_CACHE, PERSISTENT_NO_CACHE, PERSISTENT_SCROLLING_CACHE
 
Fields inherited from class android.view.View
DRAWING_CACHE_QUALITY_AUTO, DRAWING_CACHE_QUALITY_HIGH, DRAWING_CACHE_QUALITY_LOW, EMPTY_STATE_SET, ENABLED_FOCUSED_SELECTED_STATE_SET, ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, ENABLED_FOCUSED_STATE_SET, ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET, ENABLED_SELECTED_STATE_SET, ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET, ENABLED_STATE_SET, ENABLED_WINDOW_FOCUSED_STATE_SET, FOCUS_BACKWARD, FOCUS_DOWN, FOCUS_FORWARD, FOCUS_LEFT, FOCUS_RIGHT, FOCUS_UP, FOCUSABLES_ALL, FOCUSABLES_TOUCH_MODE, FOCUSED_SELECTED_STATE_SET, FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, FOCUSED_STATE_SET, FOCUSED_WINDOW_FOCUSED_STATE_SET, GONE, HAPTIC_FEEDBACK_ENABLED, INVISIBLE, KEEP_SCREEN_ON, NO_ID, PRESSED_ENABLED_FOCUSED_SELECTED_STATE_SET, PRESSED_ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_ENABLED_FOCUSED_STATE_SET, PRESSED_ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET, PRESSED_ENABLED_SELECTED_STATE_SET, PRESSED_ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_ENABLED_STATE_SET, PRESSED_ENABLED_WINDOW_FOCUSED_STATE_SET, PRESSED_FOCUSED_SELECTED_STATE_SET, PRESSED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_FOCUSED_STATE_SET, PRESSED_FOCUSED_WINDOW_FOCUSED_STATE_SET, PRESSED_SELECTED_STATE_SET, PRESSED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_WINDOW_FOCUSED_STATE_SET, SCROLLBARS_INSIDE_INSET, SCROLLBARS_INSIDE_OVERLAY, SCROLLBARS_OUTSIDE_INSET, SCROLLBARS_OUTSIDE_OVERLAY, SELECTED_STATE_SET, SELECTED_WINDOW_FOCUSED_STATE_SET, SOUND_EFFECTS_ENABLED, VIEW_LOG_TAG, VISIBLE, WINDOW_FOCUSED_STATE_SET
 
Constructor Summary
SwipeRefreshLayout(android.content.Context context)
          Simple constructor to use when creating a SwipeRefreshLayout from code.
SwipeRefreshLayout(android.content.Context context, android.util.AttributeSet attrs)
          Constructor that is called when inflating SwipeRefreshLayout from XML.
 
Method Summary
 boolean canChildScrollUp()
           
 void draw(android.graphics.Canvas canvas)
           
 boolean isRefreshing()
           
 void onAttachedToWindow()
           
 void onDetachedFromWindow()
           
 boolean onInterceptTouchEvent(android.view.MotionEvent ev)
           
protected  void onLayout(boolean changed, int left, int top, int right, int bottom)
           
 void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
           
 boolean onTouchEvent(android.view.MotionEvent event)
           
 void requestDisallowInterceptTouchEvent(boolean b)
           
 void setColorScheme(int colorRes1, int colorRes2, int colorRes3, int colorRes4)
          Set the four colors used in the progress animation.
 void setOnRefreshListener(SwipeRefreshLayout.OnRefreshListener listener)
          Set the listener to be notified when a refresh is triggered via the swipe gesture.
 void setRefreshing(boolean refreshing)
          Notify the widget that refresh state has changed.
 
Methods inherited from class android.view.ViewGroup
addFocusables, addFocusables, addStatesFromChildren, addTouchables, addView, addView, addView, addView, addView, addViewInLayout, addViewInLayout, attachLayoutAnimationParameters, attachViewToParent, bringChildToFront, canAnimate, checkLayoutParams, childDrawableStateChanged, cleanupLayoutState, clearChildFocus, clearDisappearingChildren, clearFocus, debug, detachAllViewsFromParent, detachViewFromParent, detachViewFromParent, detachViewsFromParent, dispatchDraw, dispatchFreezeSelfOnly, dispatchKeyEvent, dispatchKeyEventPreIme, dispatchKeyShortcutEvent, dispatchPopulateAccessibilityEvent, dispatchRestoreInstanceState, dispatchSaveInstanceState, dispatchSetPressed, dispatchSetSelected, dispatchThawSelfOnly, dispatchTouchEvent, dispatchTrackballEvent, dispatchUnhandledMove, dispatchWindowFocusChanged, dispatchWindowVisibilityChanged, drawableStateChanged, drawChild, findFocus, fitSystemWindows, focusableViewAvailable, focusSearch, gatherTransparentRegion, generateDefaultLayoutParams, generateLayoutParams, generateLayoutParams, getChildAt, getChildCount, getChildDrawingOrder, getChildMeasureSpec, getChildStaticTransformation, getChildVisibleRect, getDescendantFocusability, getFocusedChild, getLayoutAnimation, getLayoutAnimationListener, getPersistentDrawingCache, hasFocus, hasFocusable, indexOfChild, invalidateChild, invalidateChildInParent, isAlwaysDrawnWithCacheEnabled, isAnimationCacheEnabled, isChildrenDrawnWithCacheEnabled, measureChild, measureChildren, measureChildWithMargins, offsetDescendantRectToMyCoords, offsetRectIntoDescendantCoords, onAnimationEnd, onAnimationStart, onCreateDrawableState, onRequestFocusInDescendants, recomputeViewAttributes, removeAllViews, removeAllViewsInLayout, removeDetachedView, removeView, removeViewAt, removeViewInLayout, removeViews, removeViewsInLayout, requestChildFocus, requestChildRectangleOnScreen, requestFocus, requestTransparentRegion, scheduleLayoutAnimation, setAddStatesFromChildren, setAlwaysDrawnWithCacheEnabled, setAnimationCacheEnabled, setChildrenDrawingCacheEnabled, setChildrenDrawnWithCacheEnabled, setClipChildren, setClipToPadding, setDescendantFocusability, setLayoutAnimation, setLayoutAnimationListener, setOnHierarchyChangeListener, setPadding, setPersistentDrawingCache, setStaticTransformationsEnabled, showContextMenuForChild, startLayoutAnimation, updateViewLayout
 
Methods inherited from class android.view.View
bringToFront, buildDrawingCache, buildDrawingCache, cancelLongPress, checkInputConnectionProxy, clearAnimation, computeHorizontalScrollExtent, computeHorizontalScrollOffset, computeHorizontalScrollRange, computeScroll, computeVerticalScrollExtent, computeVerticalScrollOffset, computeVerticalScrollRange, createContextMenu, destroyDrawingCache, finalize, findViewById, findViewWithTag, focusSearch, forceLayout, getAnimation, getApplicationWindowToken, getBackground, getBaseline, getBottom, getBottomFadingEdgeStrength, getBottomPaddingOffset, getContentDescription, getContext, getContextMenuInfo, getDefaultSize, getDrawableState, getDrawingCache, getDrawingCache, getDrawingCacheBackgroundColor, getDrawingCacheQuality, getDrawingRect, getDrawingTime, getFocusables, getFocusedRect, getGlobalVisibleRect, getGlobalVisibleRect, getHandler, getHeight, getHitRect, getHorizontalFadingEdgeLength, getHorizontalScrollbarHeight, getId, getKeepScreenOn, getLayoutParams, getLeft, getLeftFadingEdgeStrength, getLeftPaddingOffset, getLocalVisibleRect, getLocationInWindow, getLocationOnScreen, getMeasuredHeight, getMeasuredWidth, getNextFocusDownId, getNextFocusLeftId, getNextFocusRightId, getNextFocusUpId, getOnFocusChangeListener, getPaddingBottom, getPaddingLeft, getPaddingRight, getPaddingTop, getParent, getResources, getRight, getRightFadingEdgeStrength, getRightPaddingOffset, getRootView, getScrollBarStyle, getScrollX, getScrollY, getSolidColor, getSuggestedMinimumHeight, getSuggestedMinimumWidth, getTag, getTag, getTop, getTopFadingEdgeStrength, getTopPaddingOffset, getTouchables, getTouchDelegate, getVerticalFadingEdgeLength, getVerticalScrollbarWidth, getViewTreeObserver, getVisibility, getWidth, getWindowAttachCount, getWindowToken, getWindowVisibility, getWindowVisibleDisplayFrame, hasWindowFocus, inflate, initializeFadingEdge, initializeScrollbars, invalidate, invalidate, invalidate, invalidateDrawable, isClickable, isDrawingCacheEnabled, isDuplicateParentStateEnabled, isEnabled, isFocusable, isFocusableInTouchMode, isFocused, isHapticFeedbackEnabled, isHorizontalFadingEdgeEnabled, isHorizontalScrollBarEnabled, isInEditMode, isInTouchMode, isLayoutRequested, isLongClickable, isPaddingOffsetRequired, isPressed, isSaveEnabled, isSelected, isShown, isSoundEffectsEnabled, isVerticalFadingEdgeEnabled, isVerticalScrollBarEnabled, layout, measure, mergeDrawableStates, offsetLeftAndRight, offsetTopAndBottom, onCheckIsTextEditor, onCreateContextMenu, onCreateInputConnection, onDraw, onFinishInflate, onFinishTemporaryDetach, onFocusChanged, onKeyDown, onKeyMultiple, onKeyPreIme, onKeyShortcut, onKeyUp, onRestoreInstanceState, onSaveInstanceState, onScrollChanged, onSetAlpha, onSizeChanged, onStartTemporaryDetach, onTrackballEvent, onWindowFocusChanged, onWindowVisibilityChanged, performClick, performHapticFeedback, performHapticFeedback, performLongClick, playSoundEffect, post, postDelayed, postInvalidate, postInvalidate, postInvalidateDelayed, postInvalidateDelayed, refreshDrawableState, removeCallbacks, requestFocus, requestFocus, requestFocusFromTouch, requestLayout, requestRectangleOnScreen, requestRectangleOnScreen, resolveSize, restoreHierarchyState, saveHierarchyState, scheduleDrawable, scrollBy, scrollTo, sendAccessibilityEvent, sendAccessibilityEventUnchecked, setAnimation, setBackgroundColor, setBackgroundDrawable, setBackgroundResource, setClickable, setContentDescription, setDrawingCacheBackgroundColor, setDrawingCacheEnabled, setDrawingCacheQuality, setDuplicateParentStateEnabled, setEnabled, setFadingEdgeLength, setFocusable, setFocusableInTouchMode, setHapticFeedbackEnabled, setHorizontalFadingEdgeEnabled, setHorizontalScrollBarEnabled, setId, setKeepScreenOn, setLayoutParams, setLongClickable, setMeasuredDimension, setMinimumHeight, setMinimumWidth, setNextFocusDownId, setNextFocusLeftId, setNextFocusRightId, setNextFocusUpId, setOnClickListener, setOnCreateContextMenuListener, setOnFocusChangeListener, setOnKeyListener, setOnLongClickListener, setOnTouchListener, setPressed, setSaveEnabled, setScrollBarStyle, setScrollContainer, setSelected, setSoundEffectsEnabled, setTag, setTag, setTouchDelegate, setVerticalFadingEdgeEnabled, setVerticalScrollBarEnabled, setVisibility, setWillNotCacheDrawing, setWillNotDraw, showContextMenu, startAnimation, unscheduleDrawable, unscheduleDrawable, verifyDrawable, willNotCacheDrawing, willNotDraw
 
Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface android.view.ViewParent
createContextMenu, getParent, isLayoutRequested, requestLayout
 

Constructor Detail

SwipeRefreshLayout

public SwipeRefreshLayout(android.content.Context context)
Simple constructor to use when creating a SwipeRefreshLayout from code.

Parameters:
context -

SwipeRefreshLayout

public SwipeRefreshLayout(android.content.Context context,
                          android.util.AttributeSet attrs)
Constructor that is called when inflating SwipeRefreshLayout from XML.

Parameters:
context -
attrs -
Method Detail

onAttachedToWindow

public void onAttachedToWindow()
Overrides:
onAttachedToWindow in class android.view.View

onDetachedFromWindow

public void onDetachedFromWindow()
Overrides:
onDetachedFromWindow in class android.view.View

setOnRefreshListener

public void setOnRefreshListener(SwipeRefreshLayout.OnRefreshListener listener)
Set the listener to be notified when a refresh is triggered via the swipe gesture.


setRefreshing

public void setRefreshing(boolean refreshing)
Notify the widget that refresh state has changed. Do not call this when refresh is triggered by a swipe gesture.

Parameters:
refreshing - Whether or not the view should show refresh progress.

setColorScheme

public void setColorScheme(int colorRes1,
                           int colorRes2,
                           int colorRes3,
                           int colorRes4)
Set the four colors used in the progress animation. The first color will also be the color of the bar that grows in response to a user swipe gesture.

Parameters:
colorRes1 - Color resource.
colorRes2 - Color resource.
colorRes3 - Color resource.
colorRes4 - Color resource.

isRefreshing

public boolean isRefreshing()
Returns:
Whether the SwipeRefreshWidget is actively showing refresh progress.

draw

public void draw(android.graphics.Canvas canvas)
Overrides:
draw in class android.view.View

onLayout

protected void onLayout(boolean changed,
                        int left,
                        int top,
                        int right,
                        int bottom)
Specified by:
onLayout in class android.view.ViewGroup

onMeasure

public void onMeasure(int widthMeasureSpec,
                      int heightMeasureSpec)
Overrides:
onMeasure in class android.view.View

canChildScrollUp

public boolean canChildScrollUp()
Returns:
Whether it is possible for the child view of this layout to scroll up. Override this if the child view is a custom view.

onInterceptTouchEvent

public boolean onInterceptTouchEvent(android.view.MotionEvent ev)
Overrides:
onInterceptTouchEvent in class android.view.ViewGroup

requestDisallowInterceptTouchEvent

public void requestDisallowInterceptTouchEvent(boolean b)
Specified by:
requestDisallowInterceptTouchEvent in interface android.view.ViewParent
Overrides:
requestDisallowInterceptTouchEvent in class android.view.ViewGroup

onTouchEvent

public boolean onTouchEvent(android.view.MotionEvent event)
Overrides:
onTouchEvent in class android.view.View