List of usage examples for android.view FocusFinder getInstance
public static FocusFinder getInstance()
From source file:com.appunite.list.HorizontalListView.java
/** * To avoid horizontal focus searches changing the selected item, we * manually focus search within the selected item (as applicable), and * prevent focus from jumping to something within another item. * @param direction one of {View.FOCUS_LEFT, View.FOCUS_RIGHT} * @return Whether this consumes the key event. *//*from w w w . j a va 2 s . c om*/ private boolean handleHorizontalFocusWithinListItem(int direction) { if (direction != View.FOCUS_UP && direction != View.FOCUS_DOWN) { throw new IllegalArgumentException("direction must be one of" + " {View.FOCUS_UP, View.FOCUS_DOWN}"); } final int numChildren = getChildCount(); if (mItemsCanFocus && numChildren > 0 && mSelectedPosition != INVALID_POSITION) { final View selectedView = getSelectedView(); if (selectedView != null && selectedView.hasFocus() && selectedView instanceof ViewGroup) { final View currentFocus = selectedView.findFocus(); final View nextFocus = FocusFinder.getInstance().findNextFocus((ViewGroup) selectedView, currentFocus, direction); if (nextFocus != null) { // do the math to get interesting rect in next focus' coordinates currentFocus.getFocusedRect(mTempRect); offsetDescendantRectToMyCoords(currentFocus, mTempRect); offsetRectIntoDescendantCoords(nextFocus, mTempRect); if (nextFocus.requestFocus(direction, mTempRect)) { return true; } } // we are blocking the key from being handled (by returning true) // if the global result is going to be some other view within this // list. this is to acheive the overall goal of having // horizontal d-pad navigation remain in the current item. final View globalNextFocus = FocusFinder.getInstance().findNextFocus((ViewGroup) getRootView(), currentFocus, direction); if (globalNextFocus != null) { return isViewAncestorOf(globalNextFocus, this); } } } return false; }
From source file:com.appunite.list.ListView.java
/** * To avoid horizontal focus searches changing the selected item, we * manually focus search within the selected item (as applicable), and * prevent focus from jumping to something within another item. * @param direction one of {View.FOCUS_LEFT, View.FOCUS_RIGHT} * @return Whether this consumes the key event. *//*from w w w .j ava 2 s.com*/ private boolean handleHorizontalFocusWithinListItem(int direction) { if (direction != View.FOCUS_LEFT && direction != View.FOCUS_RIGHT) { throw new IllegalArgumentException("direction must be one of" + " {View.FOCUS_LEFT, View.FOCUS_RIGHT}"); } final int numChildren = getChildCount(); if (mItemsCanFocus && numChildren > 0 && mSelectedPosition != INVALID_POSITION) { final View selectedView = getSelectedView(); if (selectedView != null && selectedView.hasFocus() && selectedView instanceof ViewGroup) { final View currentFocus = selectedView.findFocus(); final View nextFocus = FocusFinder.getInstance().findNextFocus((ViewGroup) selectedView, currentFocus, direction); if (nextFocus != null) { // do the math to get interesting rect in next focus' coordinates currentFocus.getFocusedRect(mTempRect); offsetDescendantRectToMyCoords(currentFocus, mTempRect); offsetRectIntoDescendantCoords(nextFocus, mTempRect); if (nextFocus.requestFocus(direction, mTempRect)) { return true; } } // we are blocking the key from being handled (by returning true) // if the global result is going to be some other view within this // list. this is to acheive the overall goal of having // horizontal d-pad navigation remain in the current item. final View globalNextFocus = FocusFinder.getInstance().findNextFocus((ViewGroup) getRootView(), currentFocus, direction); if (globalNextFocus != null) { return isViewAncestorOf(globalNextFocus, this); } } } return false; }
From source file:com.zhongsou.souyue.ui.HListView.java
/** * To avoid horizontal focus searches changing the selected item, we manually focus search within the selected item (as * applicable), and prevent focus from jumping to something within another item. * * @param direction one of {View.FOCUS_LEFT, View.FOCUS_RIGHT} * @return Whether this consumes the key event. *//*from ww w.j ava2s . com*/ private boolean handleHorizontalFocusWithinListItem(int direction) { // TODO: implement this if (direction != View.FOCUS_LEFT && direction != View.FOCUS_RIGHT) { throw new IllegalArgumentException("direction must be one of" + " {View.FOCUS_LEFT, View.FOCUS_RIGHT}"); } final int numChildren = getChildCount(); if (mItemsCanFocus && numChildren > 0 && mSelectedPosition != INVALID_POSITION) { final View selectedView = getSelectedView(); if (selectedView != null && selectedView.hasFocus() && selectedView instanceof ViewGroup) { final View currentFocus = selectedView.findFocus(); final View nextFocus = FocusFinder.getInstance().findNextFocus((ViewGroup) selectedView, currentFocus, direction); if (nextFocus != null) { // do the math to get interesting rect in next focus' coordinates currentFocus.getFocusedRect(mTempRect); offsetDescendantRectToMyCoords(currentFocus, mTempRect); offsetRectIntoDescendantCoords(nextFocus, mTempRect); if (nextFocus.requestFocus(direction, mTempRect)) { return true; } } // we are blocking the key from being handled (by returning true) // if the global result is going to be some other view within this // list. this is to acheive the overall goal of having // horizontal d-pad navigation remain in the current item. final View globalNextFocus = FocusFinder.getInstance().findNextFocus((ViewGroup) getRootView(), currentFocus, direction); if (globalNextFocus != null) { return isViewAncestorOf(globalNextFocus, this); } } } return false; }
From source file:android.support.v71.widget.RecyclerView.java
@Override public View focusSearch(View focused, int direction) { View result = mLayout.onInterceptFocusSearch(focused, direction); if (result != null) { return result; }//from w ww. j a v a 2s . c o m final FocusFinder ff = FocusFinder.getInstance(); result = ff.findNextFocus(this, focused, direction); if (result == null && mAdapter != null && mLayout != null && !isComputingLayout() && !mLayoutFrozen) { eatRequestLayout(); result = mLayout.onFocusSearchFailed(focused, direction, mRecycler, mState); resumeRequestLayout(false); } return result != null ? result : super.focusSearch(focused, direction); }
From source file:com.awrtechnologies.carbudgetsales.hlistview.widget.HListView.java
/** * To avoid horizontal focus searches changing the selected item, we manually focus search within the selected item (as * applicable), and prevent focus from jumping to something within another item. * /*ww w. j a v a 2 s. c o m*/ * @param direction * one of {View.FOCUS_LEFT, View.FOCUS_RIGHT} * @return Whether this consumes the key event. */ private boolean handleHorizontalFocusWithinListItem(int direction) { // TODO: implement this if (direction != View.FOCUS_UP && direction != View.FOCUS_DOWN) { throw new IllegalArgumentException("direction must be one of" + " {View.FOCUS_UP, View.FOCUS_DOWN}"); } final int numChildren = getChildCount(); if (mItemsCanFocus && numChildren > 0 && mSelectedPosition != INVALID_POSITION) { final View selectedView = getSelectedView(); if (selectedView != null && selectedView.hasFocus() && selectedView instanceof ViewGroup) { final View currentFocus = selectedView.findFocus(); final View nextFocus = FocusFinder.getInstance().findNextFocus((ViewGroup) selectedView, currentFocus, direction); if (nextFocus != null) { // do the math to get interesting rect in next focus' coordinates currentFocus.getFocusedRect(mTempRect); offsetDescendantRectToMyCoords(currentFocus, mTempRect); offsetRectIntoDescendantCoords(nextFocus, mTempRect); if (nextFocus.requestFocus(direction, mTempRect)) { return true; } } // we are blocking the key from being handled (by returning true) // if the global result is going to be some other view within this // list. this is to acheive the overall goal of having // horizontal d-pad navigation remain in the current item. final View globalNextFocus = FocusFinder.getInstance().findNextFocus((ViewGroup) getRootView(), currentFocus, direction); if (globalNextFocus != null) { return isViewAncestorOf(globalNextFocus, this); } } } return false; }
From source file:android.support.custom.view.VerticalViewPager.java
public boolean arrowScroll(int direction) { View currentFocused = findFocus(); if (currentFocused == this) currentFocused = null;/*from w ww .j a va 2 s . com*/ boolean handled = false; View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction); if (nextFocused != null && nextFocused != currentFocused) { if (direction == View.FOCUS_UP) { // If there is nothing to the left, or this is causing us to // jump to the right, then what we really want to do is page left. final int nextUp = getChildRectInPagerCoordinates(mTempRect, nextFocused).top; final int currUp = getChildRectInPagerCoordinates(mTempRect, currentFocused).top; if (currentFocused != null && nextUp >= currUp) { handled = pageUp(); } else { handled = nextFocused.requestFocus(); } } else if (direction == View.FOCUS_RIGHT) { // If there is nothing to the right, or this is causing us to // jump to the left, then what we really want to do is page right. final int nextDown = getChildRectInPagerCoordinates(mTempRect, nextFocused).bottom; final int currDown = getChildRectInPagerCoordinates(mTempRect, currentFocused).bottom; if (currentFocused != null && nextDown <= currDown) { handled = pageDown(); } else { handled = nextFocused.requestFocus(); } } } else if (direction == FOCUS_LEFT || direction == FOCUS_BACKWARD) { // Trying to move left and nothing there; try to page. handled = pageUp(); } else if (direction == FOCUS_RIGHT || direction == FOCUS_FORWARD) { // Trying to move right and nothing there; try to page. handled = pageDown(); } if (handled) { playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction)); } return handled; }
From source file:com.dian.diabetes.widget.VerticalViewPager.java
public boolean arrowScroll(int direction) { View currentFocused = findFocus(); if (currentFocused == this) { currentFocused = null;/*from w w w . j a v a 2 s . c o m*/ } else if (currentFocused != null) { boolean isChild = false; for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent .getParent()) { if (parent == this) { isChild = true; break; } } if (!isChild) { // This would cause the focus search down below to fail in fun ways. final StringBuilder sb = new StringBuilder(); sb.append(currentFocused.getClass().getSimpleName()); for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent .getParent()) { sb.append(" => ").append(parent.getClass().getSimpleName()); } Log.e(TAG, "arrowScroll tried to find focus based on non-child " + "current focused view " + sb.toString()); currentFocused = null; } } boolean handled = false; View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction); if (nextFocused != null && nextFocused != currentFocused) { if (direction == View.FOCUS_UP) { // If there is nothing to the left, or this is causing us to // jump to the right, then what we really want to do is page left. final int nextUp = getChildRectInPagerCoordinates(mTempRect, nextFocused).top; final int currUp = getChildRectInPagerCoordinates(mTempRect, currentFocused).top; if (currentFocused != null && nextUp >= currUp) { handled = pageUp(); } else { handled = nextFocused.requestFocus(); } } else if (direction == View.FOCUS_DOWN) { // If there is nothing to the right, or this is causing us to // jump to the left, then what we really want to do is page right. final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left; final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left; if (currentFocused != null && nextLeft <= currLeft) { handled = pageDown(); } else { handled = nextFocused.requestFocus(); } } } else if (direction == FOCUS_UP || direction == FOCUS_BACKWARD) { // Trying to move left and nothing there; try to page. handled = pageUp(); } else if (direction == FOCUS_DOWN || direction == FOCUS_FORWARD) { // Trying to move right and nothing there; try to page. handled = pageDown(); } if (handled) { playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction)); } return handled; }
From source file:cn.ismartv.tvrecyclerview.widget.RecyclerView.java
/** * Since RecyclerView is a collection ViewGroup that includes virtual children (items that are * in the Adapter but not visible in the UI), it employs a more involved focus search strategy * that differs from other ViewGroups./* w w w . ja v a 2 s . c o m*/ * <p> * It first does a focus search within the RecyclerView. If this search finds a View that is in * the focus direction with respect to the currently focused View, RecyclerView returns that * child as the next focus target. When it cannot find such child, it calls * {@link LayoutManager#onFocusSearchFailed(View, int, Recycler, State)} to layout more Views * in the focus search direction. If LayoutManager adds a View that matches the * focus search criteria, it will be returned as the focus search result. Otherwise, * RecyclerView will call parent to handle the focus search like a regular ViewGroup. * <p> * When the direction is {@link View#FOCUS_FORWARD} or {@link View#FOCUS_BACKWARD}, a View that * is not in the focus direction is still valid focus target which may not be the desired * behavior if the Adapter has more children in the focus direction. To handle this case, * RecyclerView converts the focus direction to an absolute direction and makes a preliminary * focus search in that direction. If there are no Views to gain focus, it will call * {@link LayoutManager#onFocusSearchFailed(View, int, Recycler, State)} before running a * focus search with the original (relative) direction. This allows RecyclerView to provide * better candidates to the focus search while still allowing the view system to take focus from * the RecyclerView and give it to a more suitable child if such child exists. * * @param focused The view that currently has focus * @param direction One of {@link View#FOCUS_UP}, {@link View#FOCUS_DOWN}, * {@link View#FOCUS_LEFT}, {@link View#FOCUS_RIGHT}, {@link View#FOCUS_FORWARD}, * {@link View#FOCUS_BACKWARD} or 0 for not applicable. * * @return A new View that can be the next focus after the focused View */ @Override public View focusSearch(View focused, int direction) { View result = mLayout.onInterceptFocusSearch(focused, direction); if (result != null) { return result; } final boolean canRunFocusFailure = mAdapter != null && mLayout != null && !isComputingLayout() && !mLayoutFrozen; final FocusFinder ff = FocusFinder.getInstance(); if (canRunFocusFailure && (direction == View.FOCUS_FORWARD || direction == View.FOCUS_BACKWARD)) { // convert direction to absolute direction and see if we have a view there and if not // tell LayoutManager to add if it can. boolean needsFocusFailureLayout = false; if (mLayout.canScrollVertically()) { final int absDir = direction == View.FOCUS_FORWARD ? View.FOCUS_DOWN : View.FOCUS_UP; final View found = ff.findNextFocus(this, focused, absDir); needsFocusFailureLayout = found == null; } if (!needsFocusFailureLayout && mLayout.canScrollHorizontally()) { boolean rtl = mLayout.getLayoutDirection() == ViewCompat.LAYOUT_DIRECTION_RTL; final int absDir = (direction == View.FOCUS_FORWARD) ^ rtl ? View.FOCUS_RIGHT : View.FOCUS_LEFT; final View found = ff.findNextFocus(this, focused, absDir); needsFocusFailureLayout = found == null; } if (needsFocusFailureLayout) { consumePendingUpdateOperations(); final View focusedItemView = findContainingItemView(focused); if (focusedItemView == null) { // panic, focused view is not a child anymore, cannot call super. return null; } eatRequestLayout(); mLayout.onFocusSearchFailed(focused, direction, mRecycler, mState); resumeRequestLayout(false); } result = ff.findNextFocus(this, focused, direction); } else { result = ff.findNextFocus(this, focused, direction); if (result == null && canRunFocusFailure) { consumePendingUpdateOperations(); final View focusedItemView = findContainingItemView(focused); if (focusedItemView == null) { // panic, focused view is not a child anymore, cannot call super. return null; } eatRequestLayout(); result = mLayout.onFocusSearchFailed(focused, direction, mRecycler, mState); resumeRequestLayout(false); } } return isPreferredNextFocus(focused, result, direction) ? result : super.focusSearch(focused, direction); }
From source file:com.borqs.se.addobject.AddObjectViewPager.java
public boolean arrowScroll(int direction) { View currentFocused = findFocus(); if (currentFocused == this) { currentFocused = null;// w ww . j a v a 2 s. co m } else if (currentFocused != null) { boolean isChild = false; for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent .getParent()) { if (parent == this) { isChild = true; break; } } if (!isChild) { // This would cause the focus search down below to fail in fun ways. final StringBuilder sb = new StringBuilder(); sb.append(currentFocused.getClass().getSimpleName()); for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent .getParent()) { sb.append(" => ").append(parent.getClass().getSimpleName()); } currentFocused = null; } } boolean handled = false; View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction); if (nextFocused != null && nextFocused != currentFocused) { if (direction == View.FOCUS_LEFT) { // If there is nothing to the left, or this is causing us to // jump to the right, then what we really want to do is page left. final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left; final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left; if (currentFocused != null && nextLeft >= currLeft) { handled = pageLeft(); } else { handled = nextFocused.requestFocus(); } } else if (direction == View.FOCUS_RIGHT) { // If there is nothing to the right, or this is causing us to // jump to the left, then what we really want to do is page right. final int nextLeft = getChildRectInPagerCoordinates(mTempRect, nextFocused).left; final int currLeft = getChildRectInPagerCoordinates(mTempRect, currentFocused).left; if (currentFocused != null && nextLeft <= currLeft) { handled = pageRight(); } else { handled = nextFocused.requestFocus(); } } } else if (direction == FOCUS_LEFT || direction == FOCUS_BACKWARD) { // Trying to move left and nothing there; try to page. handled = pageLeft(); } else if (direction == FOCUS_RIGHT || direction == FOCUS_FORWARD) { // Trying to move right and nothing there; try to page. handled = pageRight(); } if (handled) { playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction)); } return handled; }
From source file:com.brantapps.viewpagerindicator.vertical.VerticalViewPager.java
public boolean arrowScroll(int direction) { View currentFocused = findFocus(); if (currentFocused == this) currentFocused = null;//from w ww . ja v a2 s . c o m boolean handled = false; View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction); if (nextFocused != null && nextFocused != currentFocused) { if (direction == View.FOCUS_UP) { // If there is nothing above, or this is causing us to // jump down, then what we really want to do is page up. final int nextTop = getChildRectInPagerCoordinates(mTempRect, nextFocused).top; final int currTop = getChildRectInPagerCoordinates(mTempRect, currentFocused).top; if (currentFocused != null && nextTop >= currTop) { handled = pageUp(); } else { handled = nextFocused.requestFocus(); } } else if (direction == View.FOCUS_DOWN) { // If there is nothing below, or this is causing us to // jump up, then what we really want to do is page down. final int nextTop = getChildRectInPagerCoordinates(mTempRect, nextFocused).top; final int currTop = getChildRectInPagerCoordinates(mTempRect, currentFocused).top; if (currentFocused != null && nextTop <= currTop) { handled = pageDown(); } else { handled = nextFocused.requestFocus(); } } } else if (direction == FOCUS_UP || direction == FOCUS_BACKWARD) { // Trying to move up and nothing there; try to page. handled = pageUp(); } else if (direction == FOCUS_DOWN || direction == FOCUS_FORWARD) { // Trying to move down and nothing there; try to page. handled = pageDown(); } if (handled) { playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction)); } return handled; }