Example usage for android.view FocusFinder getInstance

Introduction

In this page you can find the example usage for android.view FocusFinder getInstance.

Prototype

public static FocusFinder getInstance() 

Source Link

Document

Get the focus finder for this thread.

Usage

From source file:com.cnpeng.cnpeng_mydemosfrom2016_12.a_12_GetLocalFiles_VP_FM.CustomNoPreLoadViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this) {
        currentFocused = null;/*from w  w w  .  j a v a 2s .  c  o  m*/
    }

    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.  
            if (currentFocused != null && nextFocused.getLeft() >= currentFocused.getLeft()) {
                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.  
            if (currentFocused != null && nextFocused.getLeft() <= currentFocused.getLeft()) {
                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:bw.com.yunifangstore.view.LazyViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this)
        currentFocused = null;//from   w ww .  j a v a 2  s  .  co m

    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.
            if (currentFocused != null && nextFocused.getLeft() >= currentFocused.getLeft()) {
                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.
            if (currentFocused != null && nextFocused.getLeft() <= currentFocused.getLeft()) {
                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:de.andacaydin.bidirectionalviewpagerlibrary.BiDirectionalViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this)
        currentFocused = null;/*  w  w  w  .j av a  2  s.c o m*/
    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.aliasapps.seq.scroller.TwoWayView.java

/**
 * To avoid horizontal/vertical 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 either {@link View#FOCUS_UP} or {@link View#FOCUS_DOWN} or
 *        {@link View#FOCUS_LEFT} or {@link View#FOCUS_RIGHT} depending on the
 *        current view orientation./*from   w  w  w.  ja v a  2  s.com*/
 *
 * @return Whether this consumes the key event.
 */
private boolean handleFocusWithinItem(int direction) {
    forceValidInnerFocusDirection(direction);

    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 achieve the overall goal of having horizontal/vertical
            // d-pad navigation remain in the current item depending on the current
            // orientation in this view.
            final View globalNextFocus = FocusFinder.getInstance().findNextFocus((ViewGroup) getRootView(),
                    currentFocus, direction);

            if (globalNextFocus != null) {
                return isViewAncestorOf(globalNextFocus, this);
            }
        }
    }

    return false;
}

---

From source file:com.artifex.mupdf.view.ThumbnailViews.java

/**
 * To avoid horizontal/vertical 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.
 * /*from w ww . j  a v a2s .c  o  m*/
 * @param direction
 *            either {@link View#FOCUS_UP} or {@link View#FOCUS_DOWN} or
 *            {@link View#FOCUS_LEFT} or {@link View#FOCUS_RIGHT} depending
 *            on the current view orientation.
 * 
 * @return Whether this consumes the key event.
 */
private boolean handleFocusWithinItem(int direction) {
    forceValidInnerFocusDirection(direction);

    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 achieve the overall goal of having
            // horizontal/vertical
            // d-pad navigation remain in the current item depending on the
            // current
            // orientation in this view.
            final View globalNextFocus = FocusFinder.getInstance().findNextFocus((ViewGroup) getRootView(),
                    currentFocus, direction);

            if (globalNextFocus != null) {
                return isViewAncestorOf(globalNextFocus, this);
            }
        }
    }

    return false;
}

---

From source file:com.chenglong.muscle.ui.LazyViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this)
        currentFocused = null;//from   w  w w  .jav  a  2s.  co  m
    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.
            if (currentFocused != null && nextFocused.getLeft() >= currentFocused.getLeft()) {
                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.
            if (currentFocused != null && nextFocused.getLeft() <= currentFocused.getLeft()) {
                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.tylz.jiaoyanglogistics.view.LazyViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this) {
        currentFocused = null;//w  w w  .j  av 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_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.
            if (currentFocused != null && nextFocused.getLeft() >= currentFocused.getLeft()) {
                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.
            if (currentFocused != null && nextFocused.getLeft() <= currentFocused.getLeft()) {
                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.tencent.tws.assistant.support.v4.view.ViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this)
        currentFocused = null;/*  w w  w .j  a  v  a2  s.  c  o m*/

    boolean handled = false;
    // tws-start::modify this view must be descendant 20141230
    if (currentFocused != null) {
        ViewParent mParent = currentFocused.getParent();
        if (mParent == null) {
            return handled;
        }
    }
    // tws-end::modify this view must be descendant 20141230
    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.
            if (currentFocused != null && nextFocused.getLeft() >= currentFocused.getLeft()) {
                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.
            if (currentFocused != null && nextFocused.getLeft() <= currentFocused.getLeft()) {
                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:beichen.douban.ui.view.LazyViewPager.java

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this)
        currentFocused = null;/* www  .j  a v a 2  s .  c o  m*/

    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.
            if (currentFocused != null && nextFocused.getLeft() >= currentFocused.getLeft()) {
                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.
            if (currentFocused != null && nextFocused.getLeft() <= currentFocused.getLeft()) {
                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.hippo.widget.BothScrollView.java

/**
 * When looking for focus in children of a scroll view, need to be a little
 * more careful not to give focus to something that is scrolled off screen.
 *
 * This is more expensive than the default {@link android.view.ViewGroup}
 * implementation, otherwise this behavior might have been made the default.
 *//*from w w  w  .  j a v  a 2  s.  c  o m*/
@Override
protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {

    // convert from forward / backward notation to up / down / left / right
    // (ugh).
    if (direction == View.FOCUS_FORWARD) {
        direction = View.FOCUS_RIGHT;
    } else if (direction == View.FOCUS_BACKWARD) {
        direction = View.FOCUS_LEFT;
    }

    final View nextFocus = previouslyFocusedRect == null
            ? FocusFinder.getInstance().findNextFocus(this, null, direction)
            : FocusFinder.getInstance().findNextFocusFromRect(this, previouslyFocusedRect, direction);

    if (nextFocus == null) {
        return false;
    }

    if (isOffScreen(nextFocus)) {
        return false;
    }

    return nextFocus.requestFocus(direction, previouslyFocusedRect);
}

---

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