Example usage for android.animation ValueAnimator cancel

List of usage examples for android.animation ValueAnimator cancel

Introduction

In this page you can find the example usage for android.animation ValueAnimator cancel.

Prototype

@Override
    public void cancel() 

Source Link

Usage

From source file:Main.java

public static void cancel(ValueAnimator... animators) {
    for (ValueAnimator animator : animators) {
        animator.cancel();
    }/*from w  ww.j  av  a  2  s .com*/
}

From source file:Main.java

public static void cancelWithoutListenersNotified(ValueAnimator animator) {
    animator.removeAllUpdateListeners();
    animator.removeAllListeners();/*  w  w w .ja  v a2s .  c  o m*/
    animator.cancel();
}

From source file:android.support.v17.leanback.widget.AbstractMediaItemPresenter.java

/**
 * Each media item row can have multiple focusable elements; the details on the left and a set
 * of optional custom actions on the right.
 * The selector is a highlight that moves to highlight to cover whichever views is in focus.
 *
 * @param selectorView the selector view used to highlight an individual element within a row.
 * @param focusChangedView The component within the media row whose focus got changed.
 * @param layoutAnimator the ValueAnimator producing animation frames for the selector's width
 *                       and x-translation, generated by this method and stored for the each
 *                       {@link ViewHolder}.
 * @param isDetails Whether the changed-focused view is for a media item details (true) or
 *                  an action (false)./*from w  w  w  . j a  v a 2  s  .  c o m*/
 */
private static ValueAnimator updateSelector(final View selectorView, View focusChangedView,
        ValueAnimator layoutAnimator, boolean isDetails) {
    int animationDuration = focusChangedView.getContext().getResources()
            .getInteger(android.R.integer.config_shortAnimTime);
    DecelerateInterpolator interpolator = new DecelerateInterpolator();

    int layoutDirection = ViewCompat.getLayoutDirection(selectorView);
    if (!focusChangedView.hasFocus()) {
        // if neither of the details or action views are in focus (ie. another row is in focus),
        // animate the selector out.
        selectorView.animate().cancel();
        selectorView.animate().alpha(0f).setDuration(animationDuration).setInterpolator(interpolator).start();
        // keep existing layout animator
        return layoutAnimator;
    } else {
        // cancel existing layout animator
        if (layoutAnimator != null) {
            layoutAnimator.cancel();
            layoutAnimator = null;
        }
        float currentAlpha = selectorView.getAlpha();
        selectorView.animate().alpha(1f).setDuration(animationDuration).setInterpolator(interpolator).start();

        final ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) selectorView.getLayoutParams();
        ViewGroup rootView = (ViewGroup) selectorView.getParent();
        sTempRect.set(0, 0, focusChangedView.getWidth(), focusChangedView.getHeight());
        rootView.offsetDescendantRectToMyCoords(focusChangedView, sTempRect);
        if (isDetails) {
            if (layoutDirection == View.LAYOUT_DIRECTION_RTL) {
                sTempRect.right += rootView.getHeight();
                sTempRect.left -= rootView.getHeight() / 2;
            } else {
                sTempRect.left -= rootView.getHeight();
                sTempRect.right += rootView.getHeight() / 2;
            }
        }
        final int targetLeft = sTempRect.left;
        final int targetWidth = sTempRect.width();
        final float deltaWidth = lp.width - targetWidth;
        final float deltaLeft = lp.leftMargin - targetLeft;

        if (deltaLeft == 0f && deltaWidth == 0f) {
            // no change needed
        } else if (currentAlpha == 0f) {
            // change selector to the proper width and marginLeft without animation.
            lp.width = targetWidth;
            lp.leftMargin = targetLeft;
            selectorView.requestLayout();
        } else {
            // animate the selector to the proper width and marginLeft.
            layoutAnimator = ValueAnimator.ofFloat(0f, 1f);
            layoutAnimator.setDuration(animationDuration);
            layoutAnimator.setInterpolator(interpolator);

            layoutAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                @Override
                public void onAnimationUpdate(ValueAnimator valueAnimator) {
                    // Set width to the proper width for this animation step.
                    float fractionToEnd = 1f - valueAnimator.getAnimatedFraction();
                    lp.leftMargin = Math.round(targetLeft + deltaLeft * fractionToEnd);
                    lp.width = Math.round(targetWidth + deltaWidth * fractionToEnd);
                    selectorView.requestLayout();
                }
            });
            layoutAnimator.start();
        }
        return layoutAnimator;

    }
}

From source file:nuclei.ui.view.ButtonBarView.java

private void setSelected(final Item item, boolean selected) {
    if (mItems.length < 5)
        return;/*from ww  w . j a va2  s  .c om*/
    if (selected) {
        item.imageView.setColorFilter(mSelectedTint, PorterDuff.Mode.SRC_ATOP);
        if (item.textView != null) {
            item.textView.setTextColor(mSelectedTint);
            item.textView.setVisibility(View.VISIBLE);
            item.textView.setTextSize(0);
            ValueAnimator animator = mLabelAnimators.get(item);
            if (animator != null)
                animator.cancel();
            animator = new ValueAnimator();
            mLabelAnimators.put(item, animator);
            animator.setDuration(200);
            animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                @Override
                public void onAnimationUpdate(ValueAnimator valueAnimator) {
                    int animatedValue = (Integer) valueAnimator.getAnimatedValue();
                    item.textView.setTextSize(animatedValue);
                }
            });
            animator.setIntValues(0, 14);
            animator.start();
        }
    } else {
        item.imageView.setColorFilter(mUnselectedTint, PorterDuff.Mode.SRC_ATOP);
        if (item.textView != null) {
            item.textView.setTextColor(mUnselectedTint);
            ValueAnimator animator = mLabelAnimators.get(item);
            if (animator != null)
                animator.cancel();
            animator = new ValueAnimator();
            mLabelAnimators.put(item, animator);
            animator.setDuration(200);
            animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                @Override
                public void onAnimationUpdate(ValueAnimator valueAnimator) {
                    int animatedValue = (Integer) valueAnimator.getAnimatedValue();
                    item.textView.setTextSize(animatedValue);
                    if (animatedValue == 0)
                        item.textView.setVisibility(View.GONE);
                }
            });
            animator.setIntValues(14, 0);
            animator.start();
        }
    }
}

From source file:com.rbware.github.androidcouchpotato.widget.AbstractMediaItemPresenter.java

/**
 * Each media item row can have multiple focusable elements; the details on the left and a set
 * of optional custom actions on the right.
 * The selector is a highlight that moves to highlight to cover whichever views is in focus.
 *
 * @param selectorView the selector view used to highlight an individual element within a row.
 * @param focusChangedView The component within the media row whose focus got changed.
 * @param layoutAnimator the ValueAnimator producing animation frames for the selector's width
 *                       and x-translation, generated by this method and stored for the each
 *                       {@link ViewHolder}.
 * @param isDetails Whether the changed-focused view is for a media item details (true) or
 *                  an action (false)./*from  w  w  w . j  a  va2 s.  c  o m*/
 */
static ValueAnimator updateSelector(final View selectorView, View focusChangedView,
        ValueAnimator layoutAnimator, boolean isDetails) {
    int animationDuration = focusChangedView.getContext().getResources()
            .getInteger(android.R.integer.config_shortAnimTime);
    DecelerateInterpolator interpolator = new DecelerateInterpolator();

    int layoutDirection = ViewCompat.getLayoutDirection(selectorView);
    if (!focusChangedView.hasFocus()) {
        // if neither of the details or action views are in focus (ie. another row is in focus),
        // animate the selector out.
        selectorView.animate().cancel();
        selectorView.animate().alpha(0f).setDuration(animationDuration).setInterpolator(interpolator).start();
        // keep existing layout animator
        return layoutAnimator;
    } else {
        // cancel existing layout animator
        if (layoutAnimator != null) {
            layoutAnimator.cancel();
            layoutAnimator = null;
        }
        float currentAlpha = selectorView.getAlpha();
        selectorView.animate().alpha(1f).setDuration(animationDuration).setInterpolator(interpolator).start();

        final ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) selectorView.getLayoutParams();
        ViewGroup rootView = (ViewGroup) selectorView.getParent();
        sTempRect.set(0, 0, focusChangedView.getWidth(), focusChangedView.getHeight());
        rootView.offsetDescendantRectToMyCoords(focusChangedView, sTempRect);
        if (isDetails) {
            if (layoutDirection == View.LAYOUT_DIRECTION_RTL) {
                sTempRect.right += rootView.getHeight();
                sTempRect.left -= rootView.getHeight() / 2;
            } else {
                sTempRect.left -= rootView.getHeight();
                sTempRect.right += rootView.getHeight() / 2;
            }
        }
        final int targetLeft = sTempRect.left;
        final int targetWidth = sTempRect.width();
        final float deltaWidth = lp.width - targetWidth;
        final float deltaLeft = lp.leftMargin - targetLeft;

        if (deltaLeft == 0f && deltaWidth == 0f) {
            // no change needed
        } else if (currentAlpha == 0f) {
            // change selector to the proper width and marginLeft without animation.
            lp.width = targetWidth;
            lp.leftMargin = targetLeft;
            selectorView.requestLayout();
        } else {
            // animate the selector to the proper width and marginLeft.
            layoutAnimator = ValueAnimator.ofFloat(0f, 1f);
            layoutAnimator.setDuration(animationDuration);
            layoutAnimator.setInterpolator(interpolator);

            layoutAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                @Override
                public void onAnimationUpdate(ValueAnimator valueAnimator) {
                    // Set width to the proper width for this animation step.
                    float fractionToEnd = 1f - valueAnimator.getAnimatedFraction();
                    lp.leftMargin = Math.round(targetLeft + deltaLeft * fractionToEnd);
                    lp.width = Math.round(targetWidth + deltaWidth * fractionToEnd);
                    selectorView.requestLayout();
                }
            });
            layoutAnimator.start();
        }
        return layoutAnimator;

    }
}

From source file:com.marlonjones.voidlauncher.CellLayout.java

public CellLayout(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    // A ViewGroup usually does not draw, but CellLayout needs to draw a rectangle to show
    // the user where a dragged item will land when dropped.
    setWillNotDraw(false);//  ww w .j a va2  s. c  om
    setClipToPadding(false);
    mLauncher = Launcher.getLauncher(context);

    DeviceProfile grid = mLauncher.getDeviceProfile();

    mCellWidth = mCellHeight = -1;
    mFixedCellWidth = mFixedCellHeight = -1;
    mWidthGap = mOriginalWidthGap = 0;
    mHeightGap = mOriginalHeightGap = 0;
    mMaxGap = Integer.MAX_VALUE;

    mCountX = grid.inv.numColumns;
    mCountY = grid.inv.numRows;
    mOccupied = new GridOccupancy(mCountX, mCountY);
    mTmpOccupied = new GridOccupancy(mCountX, mCountY);

    mPreviousReorderDirection[0] = INVALID_DIRECTION;
    mPreviousReorderDirection[1] = INVALID_DIRECTION;

    mFolderLeaveBehind.delegateCellX = -1;
    mFolderLeaveBehind.delegateCellY = -1;

    setAlwaysDrawnWithCacheEnabled(false);
    final Resources res = getResources();
    mHotseatScale = (float) grid.hotseatIconSizePx / grid.iconSizePx;

    mBackground = (TransitionDrawable) res.getDrawable(
            FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND ? R.drawable.bg_screenpanel : R.drawable.bg_celllayout);
    mBackground.setCallback(this);
    mBackground.setAlpha((int) (mBackgroundAlpha * 255));

    mReorderPreviewAnimationMagnitude = (REORDER_PREVIEW_MAGNITUDE * grid.iconSizePx);

    // Initialize the data structures used for the drag visualization.
    mEaseOutInterpolator = new DecelerateInterpolator(2.5f); // Quint ease out
    mDragCell[0] = mDragCell[1] = -1;
    for (int i = 0; i < mDragOutlines.length; i++) {
        mDragOutlines[i] = new Rect(-1, -1, -1, -1);
    }
    mDragOutlinePaint.setColor(getResources().getColor(R.color.outline_color));

    // When dragging things around the home screens, we show a green outline of
    // where the item will land. The outlines gradually fade out, leaving a trail
    // behind the drag path.
    // Set up all the animations that are used to implement this fading.
    final int duration = res.getInteger(R.integer.config_dragOutlineFadeTime);
    final float fromAlphaValue = 0;
    final float toAlphaValue = (float) res.getInteger(R.integer.config_dragOutlineMaxAlpha);

    Arrays.fill(mDragOutlineAlphas, fromAlphaValue);

    for (int i = 0; i < mDragOutlineAnims.length; i++) {
        final InterruptibleInOutAnimator anim = new InterruptibleInOutAnimator(this, duration, fromAlphaValue,
                toAlphaValue);
        anim.getAnimator().setInterpolator(mEaseOutInterpolator);
        final int thisIndex = i;
        anim.getAnimator().addUpdateListener(new AnimatorUpdateListener() {
            public void onAnimationUpdate(ValueAnimator animation) {
                final Bitmap outline = (Bitmap) anim.getTag();

                // If an animation is started and then stopped very quickly, we can still
                // get spurious updates we've cleared the tag. Guard against this.
                if (outline == null) {
                    if (LOGD) {
                        Object val = animation.getAnimatedValue();
                        Log.d(TAG, "anim " + thisIndex + " update: " + val + ", isStopped " + anim.isStopped());
                    }
                    // Try to prevent it from continuing to run
                    animation.cancel();
                } else {
                    mDragOutlineAlphas[thisIndex] = (Float) animation.getAnimatedValue();
                    CellLayout.this.invalidate(mDragOutlines[thisIndex]);
                }
            }
        });
        // The animation holds a reference to the drag outline bitmap as long is it's
        // running. This way the bitmap can be GCed when the animations are complete.
        anim.getAnimator().addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                if ((Float) ((ValueAnimator) animation).getAnimatedValue() == 0f) {
                    anim.setTag(null);
                }
            }
        });
        mDragOutlineAnims[i] = anim;
    }

    mShortcutsAndWidgets = new ShortcutAndWidgetContainer(context);
    mShortcutsAndWidgets.setCellDimensions(mCellWidth, mCellHeight, mWidthGap, mHeightGap, mCountX, mCountY);

    mStylusEventHelper = new StylusEventHelper(new SimpleOnStylusPressListener(this), this);

    mTouchFeedbackView = new ClickShadowView(context);
    addView(mTouchFeedbackView);
    addView(mShortcutsAndWidgets);
}

From source file:com.android.launcher3.CellLayout.java

public CellLayout(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    // A ViewGroup usually does not draw, but CellLayout needs to draw a rectangle to show
    // the user where a dragged item will land when dropped.
    setWillNotDraw(false);//from  w  ww  .jav  a 2s.co m
    setClipToPadding(false);
    mLauncher = (Launcher) context;

    DeviceProfile grid = mLauncher.getDeviceProfile();

    mCellWidth = mCellHeight = -1;
    mFixedCellWidth = mFixedCellHeight = -1;
    mWidthGap = mOriginalWidthGap = 0;
    mHeightGap = mOriginalHeightGap = 0;
    mMaxGap = Integer.MAX_VALUE;
    mCountX = (int) grid.inv.numColumns;
    mCountY = (int) grid.inv.numRows;
    mOccupied = new boolean[mCountX][mCountY];
    mTmpOccupied = new boolean[mCountX][mCountY];
    mPreviousReorderDirection[0] = INVALID_DIRECTION;
    mPreviousReorderDirection[1] = INVALID_DIRECTION;

    setAlwaysDrawnWithCacheEnabled(false);
    final Resources res = getResources();
    mHotseatScale = (float) grid.hotseatIconSizePx / grid.iconSizePx;

    mBackground = (TransitionDrawable) res.getDrawable(R.drawable.bg_screenpanel);
    mBackground.setCallback(this);
    mBackground.setAlpha((int) (mBackgroundAlpha * 255));

    mReorderPreviewAnimationMagnitude = (REORDER_PREVIEW_MAGNITUDE * grid.iconSizePx);

    // Initialize the data structures used for the drag visualization.
    mEaseOutInterpolator = new DecelerateInterpolator(2.5f); // Quint ease out
    mDragCell[0] = mDragCell[1] = -1;
    for (int i = 0; i < mDragOutlines.length; i++) {
        mDragOutlines[i] = new Rect(-1, -1, -1, -1);
    }

    // When dragging things around the home screens, we show a green outline of
    // where the item will land. The outlines gradually fade out, leaving a trail
    // behind the drag path.
    // Set up all the animations that are used to implement this fading.
    final int duration = res.getInteger(R.integer.config_dragOutlineFadeTime);
    final float fromAlphaValue = 0;
    final float toAlphaValue = (float) res.getInteger(R.integer.config_dragOutlineMaxAlpha);

    Arrays.fill(mDragOutlineAlphas, fromAlphaValue);

    for (int i = 0; i < mDragOutlineAnims.length; i++) {
        final InterruptibleInOutAnimator anim = new InterruptibleInOutAnimator(this, duration, fromAlphaValue,
                toAlphaValue);
        anim.getAnimator().setInterpolator(mEaseOutInterpolator);
        final int thisIndex = i;
        anim.getAnimator().addUpdateListener(new AnimatorUpdateListener() {
            public void onAnimationUpdate(ValueAnimator animation) {
                final Bitmap outline = (Bitmap) anim.getTag();

                // If an animation is started and then stopped very quickly, we can still
                // get spurious updates we've cleared the tag. Guard against this.
                if (outline == null) {
                    if (LOGD) {
                        Object val = animation.getAnimatedValue();
                        Log.d(TAG, "anim " + thisIndex + " update: " + val + ", isStopped " + anim.isStopped());
                    }
                    // Try to prevent it from continuing to run
                    animation.cancel();
                } else {
                    mDragOutlineAlphas[thisIndex] = (Float) animation.getAnimatedValue();
                    CellLayout.this.invalidate(mDragOutlines[thisIndex]);
                }
            }
        });
        // The animation holds a reference to the drag outline bitmap as long is it's
        // running. This way the bitmap can be GCed when the animations are complete.
        anim.getAnimator().addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                if ((Float) ((ValueAnimator) animation).getAnimatedValue() == 0f) {
                    anim.setTag(null);
                }
            }
        });
        mDragOutlineAnims[i] = anim;
    }

    mShortcutsAndWidgets = new ShortcutAndWidgetContainer(context);
    mShortcutsAndWidgets.setCellDimensions(mCellWidth, mCellHeight, mWidthGap, mHeightGap, mCountX, mCountY);

    mStylusEventHelper = new StylusEventHelper(this);

    mTouchFeedbackView = new ClickShadowView(context);
    addView(mTouchFeedbackView);
    addView(mShortcutsAndWidgets);
}

From source file:com.android.mylauncher3.CellLayout.java

public CellLayout(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    // A ViewGroup usually does not draw, but CellLayout needs to draw a rectangle to show
    // the user where a dragged item will land when dropped.
    setWillNotDraw(false);/*w w w.  j  a v a 2 s. c o m*/
    setClipToPadding(false);
    mLauncher = (Launcher) context;

    DeviceProfile grid = mLauncher.getDeviceProfile();
    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CellLayout, defStyle, 0);

    mCellWidth = mCellHeight = -1;
    mFixedCellWidth = mFixedCellHeight = -1;
    mWidthGap = mOriginalWidthGap = 0;
    mHeightGap = mOriginalHeightGap = 0;
    mMaxGap = Integer.MAX_VALUE;
    mCountX = (int) grid.inv.numColumns;
    mCountY = (int) grid.inv.numRows;
    mOccupied = new boolean[mCountX][mCountY];
    mTmpOccupied = new boolean[mCountX][mCountY];
    mPreviousReorderDirection[0] = INVALID_DIRECTION;
    mPreviousReorderDirection[1] = INVALID_DIRECTION;

    a.recycle();

    setAlwaysDrawnWithCacheEnabled(false);

    final Resources res = getResources();
    mHotseatScale = (float) grid.hotseatIconSizePx / grid.iconSizePx;

    mBackground = (TransitionDrawable) res.getDrawable(R.drawable.bg_screenpanel);
    mBackground.setCallback(this);
    mBackground.setAlpha((int) (mBackgroundAlpha * 255));

    mReorderPreviewAnimationMagnitude = (REORDER_PREVIEW_MAGNITUDE * grid.iconSizePx);

    // Initialize the data structures used for the drag visualization.
    mEaseOutInterpolator = new DecelerateInterpolator(2.5f); // Quint ease out
    mDragCell[0] = mDragCell[1] = -1;
    for (int i = 0; i < mDragOutlines.length; i++) {
        mDragOutlines[i] = new Rect(-1, -1, -1, -1);
    }

    // When dragging things around the home screens, we show a green outline of
    // where the item will land. The outlines gradually fade out, leaving a trail
    // behind the drag path.
    // Set up all the animations that are used to implement this fading.
    final int duration = res.getInteger(R.integer.config_dragOutlineFadeTime);
    final float fromAlphaValue = 0;
    final float toAlphaValue = (float) res.getInteger(R.integer.config_dragOutlineMaxAlpha);

    Arrays.fill(mDragOutlineAlphas, fromAlphaValue);

    for (int i = 0; i < mDragOutlineAnims.length; i++) {
        final InterruptibleInOutAnimator anim = new InterruptibleInOutAnimator(this, duration, fromAlphaValue,
                toAlphaValue);
        anim.getAnimator().setInterpolator(mEaseOutInterpolator);
        final int thisIndex = i;
        anim.getAnimator().addUpdateListener(new AnimatorUpdateListener() {
            public void onAnimationUpdate(ValueAnimator animation) {
                final Bitmap outline = (Bitmap) anim.getTag();

                // If an animation is started and then stopped very quickly, we can still
                // get spurious updates we've cleared the tag. Guard against this.
                if (outline == null) {
                    @SuppressWarnings("all") // suppress dead code warning
                    final boolean debug = false;
                    if (debug) {
                        Object val = animation.getAnimatedValue();
                        Log.d(TAG, "anim " + thisIndex + " update: " + val + ", isStopped " + anim.isStopped());
                    }
                    // Try to prevent it from continuing to run
                    animation.cancel();
                } else {
                    mDragOutlineAlphas[thisIndex] = (Float) animation.getAnimatedValue();
                    CellLayout.this.invalidate(mDragOutlines[thisIndex]);
                }
            }
        });
        // The animation holds a reference to the drag outline bitmap as long is it's
        // running. This way the bitmap can be GCed when the animations are complete.
        anim.getAnimator().addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                if ((Float) ((ValueAnimator) animation).getAnimatedValue() == 0f) {
                    anim.setTag(null);
                }
            }
        });
        mDragOutlineAnims[i] = anim;
    }

    mShortcutsAndWidgets = new ShortcutAndWidgetContainer(context);
    mShortcutsAndWidgets.setCellDimensions(mCellWidth, mCellHeight, mWidthGap, mHeightGap, mCountX, mCountY);

    mStylusEventHelper = new StylusEventHelper(this);

    mTouchFeedbackView = new ClickShadowView(context);
    addView(mTouchFeedbackView);
    addView(mShortcutsAndWidgets);
}

From source file:com.android.zlauncher.CellLayout.java

public CellLayout(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    // A ViewGroup usually does not draw, but CellLayout needs to draw a rectangle to show
    // the user where a dragged item will land when dropped.
    setWillNotDraw(false);/* w w  w  .  ja va 2  s  .  c  o m*/
    setClipToPadding(false);
    mLauncher = (Launcher) context;

    DeviceProfile grid = mLauncher.getDeviceProfile();
    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CellLayout, defStyle, 0);

    mCellWidth = mCellHeight = -1;
    mFixedCellWidth = mFixedCellHeight = -1;
    mWidthGap = mOriginalWidthGap = 0;
    mHeightGap = mOriginalHeightGap = 0;
    mMaxGap = Integer.MAX_VALUE;
    mCountX = (int) grid.inv.numColumns;
    mCountY = (int) grid.inv.numRows;
    mOccupied = new boolean[mCountX][mCountY];
    mTmpOccupied = new boolean[mCountX][mCountY];
    mPreviousReorderDirection[0] = INVALID_DIRECTION;
    mPreviousReorderDirection[1] = INVALID_DIRECTION;

    a.recycle();

    setAlwaysDrawnWithCacheEnabled(false);

    final Resources res = getResources();
    mHotseatScale = (float) grid.hotseatIconSizePx / grid.iconSizePx;

    mBackground = (TransitionDrawable) res.getDrawable(R.drawable.bg_screenpanel);
    mBackground.setCallback(this);
    mBackground.setAlpha((int) (mBackgroundAlpha * 255));

    mReorderPreviewAnimationMagnitude = (REORDER_PREVIEW_MAGNITUDE * grid.iconSizePx);

    // Initialize the data structures used for the drag visualization.
    mEaseOutInterpolator = new DecelerateInterpolator(2.5f); // Quint ease out
    mDragCell[0] = mDragCell[1] = -1;
    for (int i = 0; i < mDragOutlines.length; i++) {
        mDragOutlines[i] = new Rect(-1, -1, -1, -1);
    }

    // When dragging things around the home screens, we show a green outline of
    // where the item will land. The outlines gradually fade out, leaving a trail
    // behind the drag path.
    // Set up all the animations that are used to implement this fading.
    final int duration = res.getInteger(R.integer.config_dragOutlineFadeTime);
    final float fromAlphaValue = 0;
    final float toAlphaValue = (float) res.getInteger(R.integer.config_dragOutlineMaxAlpha);

    Arrays.fill(mDragOutlineAlphas, fromAlphaValue);

    for (int i = 0; i < mDragOutlineAnims.length; i++) {
        final InterruptibleInOutAnimator anim = new InterruptibleInOutAnimator(this, duration, fromAlphaValue,
                toAlphaValue);
        anim.getAnimator().setInterpolator(mEaseOutInterpolator);
        final int thisIndex = i;
        anim.getAnimator().addUpdateListener(new AnimatorUpdateListener() {
            public void onAnimationUpdate(ValueAnimator animation) {
                final Bitmap outline = (Bitmap) anim.getTag();

                // If an animation is started and then stopped very quickly, we can still
                // get spurious updates we've cleared the tag. Guard against this.
                if (outline == null) {
                    @SuppressWarnings("all") // suppress dead code warning
                    final boolean debug = false;
                    if (debug) {
                        Object val = animation.getAnimatedValue();
                        Log.d(TAG, "anim " + thisIndex + " update: " + val + ", isStopped " + anim.isStopped());
                    }
                    // Try to prevent it from continuing to run
                    animation.cancel();
                } else {
                    mDragOutlineAlphas[thisIndex] = (Float) animation.getAnimatedValue();
                    CellLayout.this.invalidate(mDragOutlines[thisIndex]);
                }
            }
        });
        // The animation holds a reference to the drag outline bitmap as long is it's
        // running. This way the bitmap can be GCed when the animations are complete.
        anim.getAnimator().addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                if ((Float) ((ValueAnimator) animation).getAnimatedValue() == 0f) {
                    anim.setTag(null);
                }
            }
        });
        mDragOutlineAnims[i] = anim;
    }

    mShortcutsAndWidgets = new ShortcutAndWidgetContainer(context);
    mShortcutsAndWidgets.setCellDimensions(mCellWidth, mCellHeight, mWidthGap, mHeightGap, mCountX, mCountY);

    mStylusEventHelper = new StylusEventHelper(this);

    /*       mTouchFeedbackView = new ClickShadowView(context);
           addView(mTouchFeedbackView);*/
    addView(mShortcutsAndWidgets);
}

From source file:com.klinker.android.launcher.launcher3.CellLayout.java

public CellLayout(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    // A ViewGroup usually does not draw, but CellLayout needs to draw a rectangle to show
    // the user where a dragged item will land when dropped.
    setWillNotDraw(false);//from   w  w  w.  j  av  a  2 s  . c  om
    setClipToPadding(false);
    mLauncher = (Launcher) context;

    DeviceProfile grid = mLauncher.getDeviceProfile();
    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CellLayout, defStyle, 0);

    mCellWidth = mCellHeight = -1;
    mFixedCellWidth = mFixedCellHeight = -1;
    mWidthGap = mOriginalWidthGap = 0;
    mHeightGap = mOriginalHeightGap = 0;
    mMaxGap = Integer.MAX_VALUE;
    mCountX = (int) grid.inv.numColumns;
    mCountY = (int) grid.inv.numRows;
    mOccupied = new boolean[mCountX][mCountY];
    mTmpOccupied = new boolean[mCountX][mCountY];
    mPreviousReorderDirection[0] = INVALID_DIRECTION;
    mPreviousReorderDirection[1] = INVALID_DIRECTION;

    a.recycle();

    setAlwaysDrawnWithCacheEnabled(false);

    final Resources res = getResources();
    mHotseatScale = (float) grid.hotseatIconSizePx / grid.iconSizePx;

    mBackground = (TransitionDrawable) res.getDrawable(R.drawable.bg_screenpanel);
    mBackground.setCallback(this);

    mReorderPreviewAnimationMagnitude = (REORDER_PREVIEW_MAGNITUDE * grid.iconSizePx);

    // Initialize the data structures used for the drag visualization.
    mEaseOutInterpolator = new DecelerateInterpolator(2.5f); // Quint ease out
    mDragCell[0] = mDragCell[1] = -1;
    for (int i = 0; i < mDragOutlines.length; i++) {
        mDragOutlines[i] = new Rect(-1, -1, -1, -1);
    }

    // When dragging things around the home screens, we show a green outline of
    // where the item will land. The outlines gradually fade out, leaving a trail
    // behind the drag path.
    // Set up all the animations that are used to implement this fading.
    final int duration = res.getInteger(R.integer.config_dragOutlineFadeTime);
    final float fromAlphaValue = 0;
    final float toAlphaValue = (float) res.getInteger(R.integer.config_dragOutlineMaxAlpha);

    Arrays.fill(mDragOutlineAlphas, fromAlphaValue);

    for (int i = 0; i < mDragOutlineAnims.length; i++) {
        final InterruptibleInOutAnimator anim = new InterruptibleInOutAnimator(this, duration, fromAlphaValue,
                toAlphaValue);
        anim.getAnimator().setInterpolator(mEaseOutInterpolator);
        final int thisIndex = i;
        anim.getAnimator().addUpdateListener(new AnimatorUpdateListener() {
            public void onAnimationUpdate(ValueAnimator animation) {
                final Bitmap outline = (Bitmap) anim.getTag();

                // If an animation is started and then stopped very quickly, we can still
                // get spurious updates we've cleared the tag. Guard against this.
                if (outline == null) {
                    @SuppressWarnings("all") // suppress dead code warning
                    final boolean debug = false;
                    if (debug) {
                        Object val = animation.getAnimatedValue();
                        Log.d(TAG, "anim " + thisIndex + " update: " + val + ", isStopped " + anim.isStopped());
                    }
                    // Try to prevent it from continuing to run
                    animation.cancel();
                } else {
                    mDragOutlineAlphas[thisIndex] = (Float) animation.getAnimatedValue();
                    CellLayout.this.invalidate(mDragOutlines[thisIndex]);
                }
            }
        });
        // The animation holds a reference to the drag outline bitmap as long is it's
        // running. This way the bitmap can be GCed when the animations are complete.
        anim.getAnimator().addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                if ((Float) ((ValueAnimator) animation).getAnimatedValue() == 0f) {
                    anim.setTag(null);
                }
            }
        });
        mDragOutlineAnims[i] = anim;
    }

    mShortcutsAndWidgets = new ShortcutAndWidgetContainer(context);
    mShortcutsAndWidgets.setCellDimensions(mCellWidth, mCellHeight, mWidthGap, mHeightGap, mCountX, mCountY);

    mStylusEventHelper = new StylusEventHelper(this);

    mTouchFeedbackView = new ClickShadowView(context);
    addView(mTouchFeedbackView);
    addView(mShortcutsAndWidgets);
}