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Merge "Removing some dead code in paged view" into ub-launcher3-burnaby

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This commit is contained in:
Sunny Goyal
2015-05-07 17:19:37 +00:00
committed by Android (Google) Code Review
parent 8a8f03d10a 8e2133b2c2
commit 067e5e0177
5 changed files with 66 additions and 707 deletions
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src/com/android/launcher3/PagedView.java
+65 -612
View File
@@ -22,13 +22,10 @@ import android.animation.AnimatorSet;
import android.animation.LayoutTransition;
import android.animation.ObjectAnimator;
import android.animation.TimeInterpolator;
import android.animation.ValueAnimator;
import android.animation.ValueAnimator.AnimatorUpdateListener;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.PointF;
import android.graphics.Rect;
import android.os.Bundle;
import android.os.Parcel;
@@ -47,23 +44,12 @@ import android.view.ViewParent;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.animation.AnimationUtils;
import android.view.animation.DecelerateInterpolator;
import android.view.animation.Interpolator;
import android.view.animation.LinearInterpolator;
import com.android.launcher3.util.Thunk;
import java.util.ArrayList;
interface Page {
public int getPageChildCount();
public View getChildOnPageAt(int i);
public void removeAllViewsOnPage();
public void removeViewOnPageAt(int i);
public int indexOfChildOnPage(View v);
}
/**
* An abstraction of the original Workspace which supports browsing through a
* sequential list of "pages"
@@ -88,6 +74,8 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
// The page is moved more than halfway, automatically move to the next page on touch up.
private static final float SIGNIFICANT_MOVE_THRESHOLD = 0.4f;
private static final float MAX_SCROLL_PROGRESS = 1.0f;
// The following constants need to be scaled based on density. The scaled versions will be
// assigned to the corresponding member variables below.
private static final int FLING_THRESHOLD_VELOCITY = 500;
@@ -97,7 +85,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
// We are disabling touch interaction of the widget region for factory ROM.
private static final boolean DISABLE_TOUCH_INTERACTION = false;
private static final boolean DISABLE_TOUCH_SIDE_PAGES = true;
private static final boolean DISABLE_FLING_TO_DELETE = true;
public static final int INVALID_RESTORE_PAGE = -1001;
@@ -170,7 +157,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
protected int mUnboundedScrollX;
protected int[] mTempVisiblePagesRange = new int[2];
protected boolean mForceDrawAllChildrenNextFrame;
private boolean mSpacePagesAutomatically = false;
// mOverScrollX is equal to getScrollX() when we're within the normal scroll range. Otherwise
// it is equal to the scaled overscroll position. We use a separate value so as to prevent
@@ -183,11 +169,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
private PageSwitchListener mPageSwitchListener;
protected ArrayList<Boolean> mDirtyPageContent;
// If true, syncPages and syncPageItems will be called to refresh pages
protected boolean mContentIsRefreshable = true;
// If true, modify alpha of neighboring pages as user scrolls left/right
protected boolean mFadeInAdjacentScreens = false;
@@ -198,22 +179,14 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
// If true, the subclass should directly update scrollX itself in its computeScroll method
// (SmoothPagedView does this)
protected boolean mDeferScrollUpdate = false;
protected boolean mDeferLoadAssociatedPagesUntilScrollCompletes = false;
protected boolean mIsPageMoving = false;
// All syncs and layout passes are deferred until data is ready.
protected boolean mIsDataReady = false;
protected boolean mAllowLongPress = true;
private boolean mWasInOverscroll = false;
// Page Indicator
@Thunk int mPageIndicatorViewId;
@Thunk PageIndicator mPageIndicator;
private boolean mAllowPagedViewAnimations = true;
// The viewport whether the pages are to be contained (the actual view may be larger than the
// viewport)
private Rect mViewport = new Rect();
@@ -221,10 +194,10 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
// Reordering
// We use the min scale to determine how much to expand the actually PagedView measured
// dimensions such that when we are zoomed out, the view is not clipped
private int REORDERING_DROP_REPOSITION_DURATION = 200;
protected int REORDERING_REORDER_REPOSITION_DURATION = 300;
protected int REORDERING_ZOOM_IN_OUT_DURATION = 250;
private int REORDERING_SIDE_PAGE_HOVER_TIMEOUT = 80;
private static int REORDERING_DROP_REPOSITION_DURATION = 200;
private static int REORDERING_REORDER_REPOSITION_DURATION = 300;
private static int REORDERING_SIDE_PAGE_HOVER_TIMEOUT = 80;
private float mMinScale = 1f;
private boolean mUseMinScale = false;
protected View mDragView;
@@ -242,28 +215,10 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
private Runnable mPostReorderingPreZoomInRunnable;
// Convenience/caching
private Matrix mTmpInvMatrix = new Matrix();
private float[] mTmpPoint = new float[2];
private int[] mTmpIntPoint = new int[2];
private Rect mTmpRect = new Rect();
private Rect mAltTmpRect = new Rect();
// Fling to delete
@Thunk int FLING_TO_DELETE_FADE_OUT_DURATION = 350;
private float FLING_TO_DELETE_FRICTION = 0.035f;
// The degrees specifies how much deviation from the up vector to still consider a fling "up"
private float FLING_TO_DELETE_MAX_FLING_DEGREES = 65f;
protected int mFlingToDeleteThresholdVelocity = -1400;
// Drag to delete
@Thunk boolean mDeferringForDelete = false;
@Thunk int DELETE_SLIDE_IN_SIDE_PAGE_DURATION = 250;
private int DRAG_TO_DELETE_FADE_OUT_DURATION = 350;
// Drop to delete
private View mDeleteDropTarget;
// Bouncer
private boolean mTopAlignPageWhenShrinkingForBouncer = false;
private static final Matrix sTmpInvMatrix = new Matrix();
private static final float[] sTmpPoint = new float[2];
private static final int[] sTmpIntPoint = new int[2];
private static final Rect sTmpRect = new Rect();
protected final Rect mInsets = new Rect();
@@ -300,8 +255,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
* Initializes various states for this workspace.
*/
protected void init() {
mDirtyPageContent = new ArrayList<Boolean>();
mDirtyPageContent.ensureCapacity(32);
mScroller = new LauncherScroller(getContext());
setDefaultInterpolator(new ScrollInterpolator());
mCurrentPage = 0;
@@ -313,10 +266,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
mDensity = getResources().getDisplayMetrics().density;
// Scale the fling-to-delete threshold by the density
mFlingToDeleteThresholdVelocity =
(int) (mFlingToDeleteThresholdVelocity * mDensity);
mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity);
mMinFlingVelocity = (int) (MIN_FLING_VELOCITY * mDensity);
mMinSnapVelocity = (int) (MIN_SNAP_VELOCITY * mDensity);
@@ -336,7 +285,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
ViewGroup grandParent = (ViewGroup) parent.getParent();
if (mPageIndicator == null && mPageIndicatorViewId > -1) {
mPageIndicator = (PageIndicator) grandParent.findViewById(mPageIndicatorViewId);
mPageIndicator.removeAllMarkers(mAllowPagedViewAnimations);
mPageIndicator.removeAllMarkers(true);
ArrayList<PageIndicator.PageMarkerResources> markers =
new ArrayList<PageIndicator.PageMarkerResources>();
@@ -344,7 +293,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
markers.add(getPageIndicatorMarker(i));
}
mPageIndicator.addMarkers(markers, mAllowPagedViewAnimations);
mPageIndicator.addMarkers(markers, true);
OnClickListener listener = getPageIndicatorClickListener();
if (listener != null) {
@@ -362,33 +311,31 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
return null;
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
// Unhook the page indicator
mPageIndicator = null;
}
void setDeleteDropTarget(View v) {
mDeleteDropTarget = v;
}
// Convenience methods to map points from self to parent and vice versa
float[] mapPointFromViewToParent(View v, float x, float y) {
mTmpPoint[0] = x;
mTmpPoint[1] = y;
v.getMatrix().mapPoints(mTmpPoint);
mTmpPoint[0] += v.getLeft();
mTmpPoint[1] += v.getTop();
return mTmpPoint;
private float[] mapPointFromViewToParent(View v, float x, float y) {
sTmpPoint[0] = x;
sTmpPoint[1] = y;
v.getMatrix().mapPoints(sTmpPoint);
sTmpPoint[0] += v.getLeft();
sTmpPoint[1] += v.getTop();
return sTmpPoint;
}
float[] mapPointFromParentToView(View v, float x, float y) {
mTmpPoint[0] = x - v.getLeft();
mTmpPoint[1] = y - v.getTop();
v.getMatrix().invert(mTmpInvMatrix);
mTmpInvMatrix.mapPoints(mTmpPoint);
return mTmpPoint;
private float[] mapPointFromParentToView(View v, float x, float y) {
sTmpPoint[0] = x - v.getLeft();
sTmpPoint[1] = y - v.getTop();
v.getMatrix().invert(sTmpInvMatrix);
sTmpInvMatrix.mapPoints(sTmpPoint);
return sTmpPoint;
}
void updateDragViewTranslationDuringDrag() {
private void updateDragViewTranslationDuringDrag() {
if (mDragView != null) {
float x = (mLastMotionX - mDownMotionX) + (getScrollX() - mDownScrollX) +
(mDragViewBaselineLeft - mDragView.getLeft());
@@ -462,18 +409,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
return (getLayoutDirection() == LAYOUT_DIRECTION_RTL);
}
/**
* Called by subclasses to mark that data is ready, and that we can begin loading and laying
* out pages.
*/
protected void setDataIsReady() {
mIsDataReady = true;
}
protected boolean isDataReady() {
return mIsDataReady;
}
/**
* Returns the index of the currently displayed page.
*/
@@ -516,17 +451,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
forceFinishScroller();
}
/**
* Called during AllApps/Home transitions to avoid unnecessary work. When that other animation
* {@link #updateCurrentPageScroll()} should be called, to correctly set the final state and
* re-enable scrolling.
*/
void stopScrolling() {
mCurrentPage = getNextPage();
notifyPageSwitchListener();
forceFinishScroller();
}
private void abortScrollerAnimation(boolean resetNextPage) {
mScroller.abortAnimation();
// We need to clean up the next page here to avoid computeScrollHelper from
@@ -750,12 +674,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
mNextPage = INVALID_PAGE;
notifyPageSwitchListener();
// Load the associated pages if necessary
if (mDeferLoadAssociatedPagesUntilScrollCompletes) {
loadAssociatedPages(mCurrentPage);
mDeferLoadAssociatedPagesUntilScrollCompletes = false;
}
// We don't want to trigger a page end moving unless the page has settled
// and the user has stopped scrolling
if (mTouchState == TOUCH_STATE_REST) {
@@ -779,10 +697,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
computeScrollHelper();
}
protected boolean shouldSetTopAlignedPivotForWidget(int childIndex) {
return mTopAlignPageWhenShrinkingForBouncer;
}
public static class LayoutParams extends ViewGroup.LayoutParams {
public boolean isFullScreenPage = false;
@@ -814,7 +728,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (!mIsDataReady || getChildCount() == 0) {
if (getChildCount() == 0) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
return;
}
@@ -918,27 +832,12 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
}
}
if (mSpacePagesAutomatically) {
int spacing = (getViewportWidth() - mInsets.left - mInsets.right
- referenceChildWidth) / 2;
if (spacing >= 0) {
setPageSpacing(spacing);
}
mSpacePagesAutomatically = false;
}
setMeasuredDimension(scaledWidthSize, scaledHeightSize);
}
/**
* This method should be called once before first layout / measure pass.
*/
protected void setSinglePageInViewport() {
mSpacePagesAutomatically = true;
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
if (!mIsDataReady || getChildCount() == 0) {
if (getChildCount() == 0) {
return;
}
@@ -1040,8 +939,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
updateMaxScrollX();
}
if (mScroller.isFinished() && mChildCountOnLastLayout != childCount &&
!mDeferringForDelete) {
if (mScroller.isFinished() && mChildCountOnLastLayout != childCount) {
if (mRestorePage != INVALID_RESTORE_PAGE) {
setCurrentPage(mRestorePage);
mRestorePage = INVALID_RESTORE_PAGE;
@@ -1087,14 +985,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
}
}
protected void enablePagedViewAnimations() {
mAllowPagedViewAnimations = true;
}
protected void disablePagedViewAnimations() {
mAllowPagedViewAnimations = false;
}
@Override
public void onChildViewAdded(View parent, View child) {
// Update the page indicator, we don't update the page indicator as we
@@ -1103,7 +993,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
int pageIndex = indexOfChild(child);
mPageIndicator.addMarker(pageIndex,
getPageIndicatorMarker(pageIndex),
mAllowPagedViewAnimations);
true);
}
// This ensures that when children are added, they get the correct transforms / alphas
@@ -1124,7 +1014,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
// Update the page indicator, we don't update the page indicator as we
// add/remove pages
if (mPageIndicator != null && !isReordering(false)) {
mPageIndicator.removeMarker(index, mAllowPagedViewAnimations);
mPageIndicator.removeMarker(index, true);
}
}
@@ -1154,7 +1044,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
// Update the page indicator, we don't update the page indicator as we
// add/remove pages
if (mPageIndicator != null) {
mPageIndicator.removeAllMarkers(mAllowPagedViewAnimations);
mPageIndicator.removeAllMarkers(true);
}
super.removeAllViewsInLayout();
@@ -1175,7 +1065,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
protected void getVisiblePages(int[] range) {
final int pageCount = getChildCount();
mTmpIntPoint[0] = mTmpIntPoint[1] = 0;
sTmpIntPoint[0] = sTmpIntPoint[1] = 0;
range[0] = -1;
range[1] = -1;
@@ -1188,9 +1078,9 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
for (int i = 0; i < count; i++) {
View currPage = getPageAt(i);
mTmpIntPoint[0] = 0;
Utilities.getDescendantCoordRelativeToParent(currPage, this, mTmpIntPoint, false);
if (mTmpIntPoint[0] > viewportWidth) {
sTmpIntPoint[0] = 0;
Utilities.getDescendantCoordRelativeToParent(currPage, this, sTmpIntPoint, false);
if (sTmpIntPoint[0] > viewportWidth) {
if (range[0] == -1) {
continue;
} else {
@@ -1198,9 +1088,9 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
}
}
mTmpIntPoint[0] = currPage.getMeasuredWidth();
Utilities.getDescendantCoordRelativeToParent(currPage, this, mTmpIntPoint, false);
if (mTmpIntPoint[0] < 0) {
sTmpIntPoint[0] = currPage.getMeasuredWidth();
Utilities.getDescendantCoordRelativeToParent(currPage, this, sTmpIntPoint, false);
if (sTmpIntPoint[0] < 0) {
if (range[0] == -1) {
continue;
} else {
@@ -1397,9 +1287,9 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
/** Returns whether x and y originated within the buffered viewport */
private boolean isTouchPointInViewportWithBuffer(int x, int y) {
mTmpRect.set(mViewport.left - mViewport.width() / 2, mViewport.top,
sTmpRect.set(mViewport.left - mViewport.width() / 2, mViewport.top,
mViewport.right + mViewport.width() / 2, mViewport.bottom);
return mTmpRect.contains(x, y);
return sTmpRect.contains(x, y);
}
@Override
@@ -1559,32 +1449,16 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
}
}
protected float getMaxScrollProgress() {
return 1.0f;
}
protected void cancelCurrentPageLongPress() {
if (mAllowLongPress) {
//mAllowLongPress = false;
// Try canceling the long press. It could also have been scheduled
// by a distant descendant, so use the mAllowLongPress flag to block
// everything
final View currentPage = getPageAt(mCurrentPage);
if (currentPage != null) {
currentPage.cancelLongPress();
}
// Try canceling the long press. It could also have been scheduled
// by a distant descendant, so use the mAllowLongPress flag to block
// everything
final View currentPage = getPageAt(mCurrentPage);
if (currentPage != null) {
currentPage.cancelLongPress();
}
}
protected float getBoundedScrollProgress(int screenCenter, View v, int page) {
final int halfScreenSize = getViewportWidth() / 2;
screenCenter = Math.min(getScrollX() + halfScreenSize, screenCenter);
screenCenter = Math.max(halfScreenSize, screenCenter);
return getScrollProgress(screenCenter, v, page);
}
protected float getScrollProgress(int screenCenter, View v, int page) {
final int halfScreenSize = getViewportWidth() / 2;
@@ -1605,8 +1479,8 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
}
float scrollProgress = delta / (totalDistance * 1.0f);
scrollProgress = Math.min(scrollProgress, getMaxScrollProgress());
scrollProgress = Math.max(scrollProgress, - getMaxScrollProgress());
scrollProgress = Math.min(scrollProgress, MAX_SCROLL_PROGRESS);
scrollProgress = Math.max(scrollProgress, - MAX_SCROLL_PROGRESS);
return scrollProgress;
}
@@ -1735,7 +1609,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
mAllowOverScroll = enable;
}
int getNearestHoverOverPageIndex() {
private int getNearestHoverOverPageIndex() {
if (mDragView != null) {
int dragX = (int) (mDragView.getLeft() + (mDragView.getMeasuredWidth() / 2)
+ mDragView.getTranslationX());
@@ -1842,19 +1716,13 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
// Find the closest page to the touch point
final int dragViewIndex = indexOfChild(mDragView);
// Change the drag view if we are hovering over the drop target
boolean isHoveringOverDelete = isHoveringOverDeleteDropTarget(
(int) mParentDownMotionX, (int) mParentDownMotionY);
setPageHoveringOverDeleteDropTarget(dragViewIndex, isHoveringOverDelete);
if (DEBUG) Log.d(TAG, "mLastMotionX: " + mLastMotionX);
if (DEBUG) Log.d(TAG, "mLastMotionY: " + mLastMotionY);
if (DEBUG) Log.d(TAG, "mParentDownMotionX: " + mParentDownMotionX);
if (DEBUG) Log.d(TAG, "mParentDownMotionY: " + mParentDownMotionY);
final int pageUnderPointIndex = getNearestHoverOverPageIndex();
if (pageUnderPointIndex > -1 && pageUnderPointIndex != indexOfChild(mDragView) &&
!isHoveringOverDelete) {
if (pageUnderPointIndex > -1 && pageUnderPointIndex != indexOfChild(mDragView)) {
mTempVisiblePagesRange[0] = 0;
mTempVisiblePagesRange[1] = getPageCount() - 1;
getFreeScrollPageRange(mTempVisiblePagesRange);
@@ -1901,9 +1769,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
}
removeView(mDragView);
onRemoveView(mDragView, false);
addView(mDragView, pageUnderPointIndex);
onAddView(mDragView, pageUnderPointIndex);
mSidePageHoverIndex = -1;
if (mPageIndicator != null) {
mPageIndicator.setActiveMarker(getNextPage());
@@ -2014,19 +1880,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
mParentDownMotionX = pt[0];
mParentDownMotionY = pt[1];
updateDragViewTranslationDuringDrag();
boolean handledFling = false;
if (!DISABLE_FLING_TO_DELETE) {
// Check the velocity and see if we are flinging-to-delete
PointF flingToDeleteVector = isFlingingToDelete();
if (flingToDeleteVector != null) {
onFlingToDelete(flingToDeleteVector);
handledFling = true;
}
}
if (!handledFling && isHoveringOverDeleteDropTarget((int) mParentDownMotionX,
(int) mParentDownMotionY)) {
onDropToDelete();
}
} else {
if (!mCancelTap) {
onUnhandledTap(ev);
@@ -2055,11 +1908,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
return true;
}
public void onFlingToDelete(View v) {}
public void onRemoveView(View v, boolean deletePermanently) {}
public void onRemoveViewAnimationCompleted() {}
public void onAddView(View v, int index) {}
private void resetTouchState() {
releaseVelocityTracker();
endReordering();
@@ -2155,22 +2003,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
}
}
protected int getChildWidth(int index) {
return getPageAt(index).getMeasuredWidth();
}
int getPageNearestToPoint(float x) {
int index = 0;
for (int i = 0; i < getChildCount(); ++i) {
if (x < getChildAt(i).getRight() - getScrollX()) {
return index;
} else {
index++;
}
}
return Math.min(index, getChildCount() - 1);
}
int getPageNearestToCenterOfScreen() {
int minDistanceFromScreenCenter = Integer.MAX_VALUE;
int minDistanceFromScreenCenterIndex = -1;
@@ -2330,9 +2162,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
computeScroll();
}
// Defer loading associated pages until the scroll settles
mDeferLoadAssociatedPagesUntilScrollCompletes = true;
mForceScreenScrolled = true;
invalidate();
}
@@ -2359,27 +2188,12 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
return result;
}
/**
* @return True is long presses are still allowed for the current touch
*/
public boolean allowLongPress() {
return mAllowLongPress;
}
@Override
public boolean performLongClick() {
mCancelTap = true;
return super.performLongClick();
}
/**
* Set true to allow long-press events to be triggered, usually checked by
* {@link Launcher} to accept or block dpad-initiated long-presses.
*/
public void setAllowLongPress(boolean allowLongPress) {
mAllowLongPress = allowLongPress;
}
public static class SavedState extends BaseSavedState {
int currentPage = -1;
@@ -2410,111 +2224,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
};
}
protected void loadAssociatedPages(int page) {
loadAssociatedPages(page, false);
}
protected void loadAssociatedPages(int page, boolean immediateAndOnly) {
if (mContentIsRefreshable) {
final int count = getChildCount();
if (page < count) {
int lowerPageBound = getAssociatedLowerPageBound(page);
int upperPageBound = getAssociatedUpperPageBound(page);
if (DEBUG) Log.d(TAG, "loadAssociatedPages: " + lowerPageBound + "/"
+ upperPageBound);
// First, clear any pages that should no longer be loaded
for (int i = 0; i < count; ++i) {
Page layout = (Page) getPageAt(i);
if ((i < lowerPageBound) || (i > upperPageBound)) {
if (layout.getPageChildCount() > 0) {
layout.removeAllViewsOnPage();
}
mDirtyPageContent.set(i, true);
}
}
// Next, load any new pages
for (int i = 0; i < count; ++i) {
if ((i != page) && immediateAndOnly) {
continue;
}
if (lowerPageBound <= i && i <= upperPageBound) {
if (mDirtyPageContent.get(i)) {
syncPageItems(i, (i == page) && immediateAndOnly);
mDirtyPageContent.set(i, false);
}
}
}
}
}
}
protected int getAssociatedLowerPageBound(int page) {
return Math.max(0, page - 1);
}
protected int getAssociatedUpperPageBound(int page) {
final int count = getChildCount();
return Math.min(page + 1, count - 1);
}
/**
* This method is called ONLY to synchronize the number of pages that the paged view has.
* To actually fill the pages with information, implement syncPageItems() below. It is
* guaranteed that syncPageItems() will be called for a particular page before it is shown,
* and therefore, individual page items do not need to be updated in this method.
*/
public abstract void syncPages();
/**
* This method is called to synchronize the items that are on a particular page. If views on
* the page can be reused, then they should be updated within this method.
*/
public abstract void syncPageItems(int page, boolean immediate);
protected void invalidatePageData() {
invalidatePageData(-1, false);
}
protected void invalidatePageData(int currentPage) {
invalidatePageData(currentPage, false);
}
protected void invalidatePageData(int currentPage, boolean immediateAndOnly) {
if (!mIsDataReady) {
return;
}
if (mContentIsRefreshable) {
// Force all scrolling-related behavior to end
forceFinishScroller();
// Update all the pages
syncPages();
// We must force a measure after we've loaded the pages to update the content width and
// to determine the full scroll width
measure(MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.EXACTLY),
MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.EXACTLY));
// Set a new page as the current page if necessary
if (currentPage > -1) {
setCurrentPage(Math.min(getPageCount() - 1, currentPage));
}
// Mark each of the pages as dirty
final int count = getChildCount();
mDirtyPageContent.clear();
for (int i = 0; i < count; ++i) {
mDirtyPageContent.add(true);
}
// Load any pages that are necessary for the current window of views
loadAssociatedPages(mCurrentPage, immediateAndOnly);
requestLayout();
}
if (isPageMoving()) {
// If the page is moving, then snap it to the final position to ensure we don't get
// stuck between pages
snapToDestination();
}
}
// Animate the drag view back to the original position
void animateDragViewToOriginalPosition() {
if (mDragView != null) {
@@ -2605,280 +2314,24 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
onEndReordering();
}
};
if (!mDeferringForDelete) {
mPostReorderingPreZoomInRunnable = new Runnable() {
public void run() {
onCompleteRunnable.run();
enableFreeScroll();
};
mPostReorderingPreZoomInRunnable = new Runnable() {
public void run() {
onCompleteRunnable.run();
enableFreeScroll();
};
};
mPostReorderingPreZoomInRemainingAnimationCount =
NUM_ANIMATIONS_RUNNING_BEFORE_ZOOM_OUT;
// Snap to the current page
snapToPage(indexOfChild(mDragView), 0);
// Animate the drag view back to the front position
animateDragViewToOriginalPosition();
} else {
// Handled in post-delete-animation-callbacks
}
mPostReorderingPreZoomInRemainingAnimationCount =
NUM_ANIMATIONS_RUNNING_BEFORE_ZOOM_OUT;
// Snap to the current page
snapToPage(indexOfChild(mDragView), 0);
// Animate the drag view back to the front position
animateDragViewToOriginalPosition();
}
/*
* Flinging to delete - IN PROGRESS
*/
private PointF isFlingingToDelete() {
ViewConfiguration config = ViewConfiguration.get(getContext());
mVelocityTracker.computeCurrentVelocity(1000, config.getScaledMaximumFlingVelocity());
if (mVelocityTracker.getYVelocity() < mFlingToDeleteThresholdVelocity) {
// Do a quick dot product test to ensure that we are flinging upwards
PointF vel = new PointF(mVelocityTracker.getXVelocity(),
mVelocityTracker.getYVelocity());
PointF upVec = new PointF(0f, -1f);
float theta = (float) Math.acos(((vel.x * upVec.x) + (vel.y * upVec.y)) /
(vel.length() * upVec.length()));
if (theta <= Math.toRadians(FLING_TO_DELETE_MAX_FLING_DEGREES)) {
return vel;
}
}
return null;
}
/**
* Creates an animation from the current drag view along its current velocity vector.
* For this animation, the alpha runs for a fixed duration and we update the position
* progressively.
*/
private static class FlingAlongVectorAnimatorUpdateListener implements AnimatorUpdateListener {
private View mDragView;
private PointF mVelocity;
private Rect mFrom;
private long mPrevTime;
private float mFriction;
private final TimeInterpolator mAlphaInterpolator = new DecelerateInterpolator(0.75f);
public FlingAlongVectorAnimatorUpdateListener(View dragView, PointF vel, Rect from,
long startTime, float friction) {
mDragView = dragView;
mVelocity = vel;
mFrom = from;
mPrevTime = startTime;
mFriction = 1f - (mDragView.getResources().getDisplayMetrics().density * friction);
}
@Override
public void onAnimationUpdate(ValueAnimator animation) {
float t = ((Float) animation.getAnimatedValue()).floatValue();
long curTime = AnimationUtils.currentAnimationTimeMillis();
mFrom.left += (mVelocity.x * (curTime - mPrevTime) / 1000f);
mFrom.top += (mVelocity.y * (curTime - mPrevTime) / 1000f);
mDragView.setTranslationX(mFrom.left);
mDragView.setTranslationY(mFrom.top);
mDragView.setAlpha(1f - mAlphaInterpolator.getInterpolation(t));
mVelocity.x *= mFriction;
mVelocity.y *= mFriction;
mPrevTime = curTime;
}
};
private static final int ANIM_TAG_KEY = 100;
private Runnable createPostDeleteAnimationRunnable(final View dragView) {
return new Runnable() {
@Override
public void run() {
int dragViewIndex = indexOfChild(dragView);
// For each of the pages around the drag view, animate them from the previous
// position to the new position in the layout (as a result of the drag view moving
// in the layout)
// NOTE: We can make an assumption here because we have side-bound pages that we
// will always have pages to animate in from the left
getFreeScrollPageRange(mTempVisiblePagesRange);
boolean isLastWidgetPage = (mTempVisiblePagesRange[0] == mTempVisiblePagesRange[1]);
boolean slideFromLeft = (isLastWidgetPage ||
dragViewIndex > mTempVisiblePagesRange[0]);
// Setup the scroll to the correct page before we swap the views
if (slideFromLeft) {
snapToPageImmediately(dragViewIndex - 1);
}
int firstIndex = (isLastWidgetPage ? 0 : mTempVisiblePagesRange[0]);
int lastIndex = Math.min(mTempVisiblePagesRange[1], getPageCount() - 1);
int lowerIndex = (slideFromLeft ? firstIndex : dragViewIndex + 1 );
int upperIndex = (slideFromLeft ? dragViewIndex - 1 : lastIndex);
ArrayList<Animator> animations = new ArrayList<Animator>();
for (int i = lowerIndex; i <= upperIndex; ++i) {
View v = getChildAt(i);
// dragViewIndex < pageUnderPointIndex, so after we remove the
// drag view all subsequent views to pageUnderPointIndex will
// shift down.
int oldX = 0;
int newX = 0;
if (slideFromLeft) {
if (i == 0) {
// Simulate the page being offscreen with the page spacing
oldX = getViewportOffsetX() + getChildOffset(i) - getChildWidth(i)
- mPageSpacing;
} else {
oldX = getViewportOffsetX() + getChildOffset(i - 1);
}
newX = getViewportOffsetX() + getChildOffset(i);
} else {
oldX = getChildOffset(i) - getChildOffset(i - 1);
newX = 0;
}
// Animate the view translation from its old position to its new
// position
AnimatorSet anim = (AnimatorSet) v.getTag();
if (anim != null) {
anim.cancel();
}
// Note: Hacky, but we want to skip any optimizations to not draw completely
// hidden views
v.setAlpha(Math.max(v.getAlpha(), 0.01f));
v.setTranslationX(oldX - newX);
anim = new AnimatorSet();
anim.playTogether(
ObjectAnimator.ofFloat(v, "translationX", 0f),
ObjectAnimator.ofFloat(v, "alpha", 1f));
animations.add(anim);
v.setTag(ANIM_TAG_KEY, anim);
}
AnimatorSet slideAnimations = new AnimatorSet();
slideAnimations.playTogether(animations);
slideAnimations.setDuration(DELETE_SLIDE_IN_SIDE_PAGE_DURATION);
slideAnimations.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mDeferringForDelete = false;
onEndReordering();
onRemoveViewAnimationCompleted();
}
});
slideAnimations.start();
removeView(dragView);
onRemoveView(dragView, true);
}
};
}
public void onFlingToDelete(PointF vel) {
final long startTime = AnimationUtils.currentAnimationTimeMillis();
// NOTE: Because it takes time for the first frame of animation to actually be
// called and we expect the animation to be a continuation of the fling, we have
// to account for the time that has elapsed since the fling finished. And since
// we don't have a startDelay, we will always get call to update when we call
// start() (which we want to ignore).
final TimeInterpolator tInterpolator = new TimeInterpolator() {
private int mCount = -1;
private long mStartTime;
private float mOffset;
/* Anonymous inner class ctor */ {
mStartTime = startTime;
}
@Override
public float getInterpolation(float t) {
if (mCount < 0) {
mCount++;
} else if (mCount == 0) {
mOffset = Math.min(0.5f, (float) (AnimationUtils.currentAnimationTimeMillis() -
mStartTime) / FLING_TO_DELETE_FADE_OUT_DURATION);
mCount++;
}
return Math.min(1f, mOffset + t);
}
};
final Rect from = new Rect();
final View dragView = mDragView;
from.left = (int) dragView.getTranslationX();
from.top = (int) dragView.getTranslationY();
AnimatorUpdateListener updateCb = new FlingAlongVectorAnimatorUpdateListener(dragView, vel,
from, startTime, FLING_TO_DELETE_FRICTION);
final Runnable onAnimationEndRunnable = createPostDeleteAnimationRunnable(dragView);
// Create and start the animation
ValueAnimator mDropAnim = new ValueAnimator();
mDropAnim.setInterpolator(tInterpolator);
mDropAnim.setDuration(FLING_TO_DELETE_FADE_OUT_DURATION);
mDropAnim.setFloatValues(0f, 1f);
mDropAnim.addUpdateListener(updateCb);
mDropAnim.addListener(new AnimatorListenerAdapter() {
public void onAnimationEnd(Animator animation) {
onAnimationEndRunnable.run();
}
});
mDropAnim.start();
mDeferringForDelete = true;
}
/* Drag to delete */
private boolean isHoveringOverDeleteDropTarget(int x, int y) {
if (mDeleteDropTarget != null) {
mAltTmpRect.set(0, 0, 0, 0);
View parent = (View) mDeleteDropTarget.getParent();
if (parent != null) {
parent.getGlobalVisibleRect(mAltTmpRect);
}
mDeleteDropTarget.getGlobalVisibleRect(mTmpRect);
mTmpRect.offset(-mAltTmpRect.left, -mAltTmpRect.top);
return mTmpRect.contains(x, y);
}
return false;
}
protected void setPageHoveringOverDeleteDropTarget(int viewIndex, boolean isHovering) {}
private void onDropToDelete() {
final View dragView = mDragView;
final float toScale = 0f;
final float toAlpha = 0f;
// Create and start the complex animation
ArrayList<Animator> animations = new ArrayList<Animator>();
AnimatorSet motionAnim = new AnimatorSet();
motionAnim.setInterpolator(new DecelerateInterpolator(2));
motionAnim.playTogether(
ObjectAnimator.ofFloat(dragView, "scaleX", toScale),
ObjectAnimator.ofFloat(dragView, "scaleY", toScale));
animations.add(motionAnim);
AnimatorSet alphaAnim = new AnimatorSet();
alphaAnim.setInterpolator(new LinearInterpolator());
alphaAnim.playTogether(
ObjectAnimator.ofFloat(dragView, "alpha", toAlpha));
animations.add(alphaAnim);
final Runnable onAnimationEndRunnable = createPostDeleteAnimationRunnable(dragView);
AnimatorSet anim = new AnimatorSet();
anim.playTogether(animations);
anim.setDuration(DRAG_TO_DELETE_FADE_OUT_DURATION);
anim.addListener(new AnimatorListenerAdapter() {
public void onAnimationEnd(Animator animation) {
onAnimationEndRunnable.run();
}
});
anim.start();
mDeferringForDelete = true;
}
/* Accessibility */
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {