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Cleaning some page animations

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-> Fix jump when last page gets delted (issue 10908427)
-> Fade out empty screen
-> If the final page is empty, and that is the current page when
   spring loaded mode ends, animate back to the previous page
   and then fade out the final page. Examples: cancel widget
   or shortcut drop on the final page, scroll to final page and
   drop an icon into a the hotseat, etc.

Change-Id: I13438fb0af6555b6f0b511b7aff51b3972431438
This commit is contained in:
Adam Cohen
2013-10-17 16:21:35 -07:00
parent 39789cba2b
commit ad4e15cae4
3 changed files with 184 additions and 54 deletions
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139
src/com/android/launcher3/Workspace.java
View File

@@ -22,6 +22,7 @@ import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.LayoutTransition;
import android.animation.ObjectAnimator;
import android.animation.PropertyValuesHolder;
import android.animation.TimeInterpolator;
import android.animation.ValueAnimator;
import android.animation.ValueAnimator.AnimatorUpdateListener;
@@ -89,6 +90,9 @@ public class Workspace extends SmoothPagedView
private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375;
private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100;
protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400;
protected static final int FADE_EMPTY_SCREEN_DURATION = 150;
private static final int BACKGROUND_FADE_OUT_DURATION = 350;
private static final int ADJACENT_SCREEN_DROP_DURATION = 300;
private static final int FLING_THRESHOLD_VELOCITY = 500;
@@ -128,6 +132,8 @@ public class Workspace extends SmoothPagedView
private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>();
private ArrayList<Long> mScreenOrder = new ArrayList<Long>();
private Runnable mRemoveEmptyScreenRunnable;
/**
* CellInfo for the cell that is currently being dragged
*/
@@ -392,7 +398,6 @@ public class Workspace extends SmoothPagedView
InstallShortcutReceiver.disableAndFlushInstallQueue(getContext());
UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext());
removeExtraEmptyScreen();
mDragSourceInternal = null;
mLauncher.onInteractionEnd();
}
@@ -627,6 +632,9 @@ public class Workspace extends SmoothPagedView
boolean lastChildOnScreen = false;
boolean childOnFinalScreen = false;
// Cancel any pending removal of empty screen
mRemoveEmptyScreenRunnable = null;
if (mDragSourceInternal != null) {
if (mDragSourceInternal.getChildCount() == 1) {
lastChildOnScreen = true;
@@ -654,15 +662,97 @@ public class Workspace extends SmoothPagedView
return false;
}
public void removeExtraEmptyScreen() {
if (hasExtraEmptyScreen()) {
CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID);
mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID);
mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID);
removeView(cl);
private void convertFinalScreenToEmptyScreenIfNecessary() {
if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return;
long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1);
if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return;
CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId);
// If the final screen is empty, convert it to the extra empty screen
if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0) {
mWorkspaceScreens.remove(finalScreenId);
mScreenOrder.remove(finalScreenId);
// if this is the last non-custom content screen, convert it to the empty screen
mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen);
mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID);
}
}
public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete) {
removeExtraEmptyScreen(animate, onComplete, 0, false);
}
public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete,
final int delay, final boolean stripEmptyScreens) {
if (delay > 0) {
postDelayed(new Runnable() {
@Override
public void run() {
removeExtraEmptyScreen(animate, onComplete, 0, stripEmptyScreens);
}
}, delay);
return;
}
convertFinalScreenToEmptyScreenIfNecessary();
if (hasExtraEmptyScreen()) {
int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID);
if (getNextPage() == emptyIndex) {
snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION);
fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION,
onComplete, stripEmptyScreens);
} else {
fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION,
onComplete, stripEmptyScreens);
}
return;
}
if (onComplete != null) {
onComplete.run();
}
}
private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete,
final boolean stripEmptyScreens) {
PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f);
PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f);
final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID);
mRemoveEmptyScreenRunnable = new Runnable() {
@Override
public void run() {
if (hasExtraEmptyScreen()) {
mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID);
mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID);
removeView(cl);
if (stripEmptyScreens) {
stripEmptyScreens();
}
}
}
};
ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha);
oa.setDuration(duration);
oa.setStartDelay(delay);
oa.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
if (mRemoveEmptyScreenRunnable != null) {
mRemoveEmptyScreenRunnable.run();
}
if (onComplete != null) {
onComplete.run();
}
}
});
oa.start();
}
public boolean hasExtraEmptyScreen() {
int nScreens = getChildCount();
nScreens = nScreens - numCustomPages();
@@ -753,6 +843,7 @@ public class Workspace extends SmoothPagedView
removeView(cl);
} else {
// if this is the last non-custom content screen, convert it to the empty screen
mRemoveEmptyScreenRunnable = null;
mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl);
mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID);
}
@@ -1103,11 +1194,15 @@ public class Workspace extends SmoothPagedView
}
protected void snapToPage(int whichPage, Runnable r) {
snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r);
}
protected void snapToPage(int whichPage, int duration, Runnable r) {
if (mDelayedSnapToPageRunnable != null) {
mDelayedSnapToPageRunnable.run();
}
mDelayedSnapToPageRunnable = r;
snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION);
snapToPage(whichPage, duration);
}
protected void snapToScreenId(long screenId, Runnable r) {
@@ -2726,13 +2821,13 @@ public class Workspace extends SmoothPagedView
// cell also contains a shortcut, then create a folder with the two shortcuts.
if (!mInScrollArea && createUserFolderIfNecessary(cell, container,
dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) {
stripEmptyScreens();
removeExtraEmptyScreen(true, null, 0, true);
return;
}
if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell,
distance, d, false)) {
stripEmptyScreens();
removeExtraEmptyScreen(true, null, 0, true);
return;
}
@@ -2840,7 +2935,7 @@ public class Workspace extends SmoothPagedView
if (finalResizeRunnable != null) {
finalResizeRunnable.run();
}
stripEmptyScreens();
removeExtraEmptyScreen(true, null, 0, true);
}
};
mAnimatingViewIntoPlace = true;
@@ -3491,7 +3586,13 @@ public class Workspace extends SmoothPagedView
final Runnable exitSpringLoadedRunnable = new Runnable() {
@Override
public void run() {
mLauncher.exitSpringLoadedDragModeDelayed(true, false, null);
removeExtraEmptyScreen(false, new Runnable() {
@Override
public void run() {
mLauncher.exitSpringLoadedDragModeDelayed(true,
Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null);
}
});
}
};
@@ -3727,7 +3828,7 @@ public class Workspace extends SmoothPagedView
external, scalePreview);
Resources res = mLauncher.getResources();
int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200;
final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200;
// In the case where we've prebound the widget, we remove it from the DragLayer
if (finalView instanceof AppWidgetHostView && external) {
@@ -3835,11 +3936,11 @@ public class Workspace extends SmoothPagedView
final boolean isFlingToDelete, final boolean success) {
if (mDeferDropAfterUninstall) {
mDeferredAction = new Runnable() {
public void run() {
onDropCompleted(target, d, isFlingToDelete, success);
mDeferredAction = null;
}
};
public void run() {
onDropCompleted(target, d, isFlingToDelete, success);
mDeferredAction = null;
}
};
return;
}
@@ -3857,7 +3958,7 @@ public class Workspace extends SmoothPagedView
// If we move the item to anything not on the Workspace, check if any empty
// screens need to be removed. If we dropped back on the workspace, this will
// be done post drop animation.
stripEmptyScreens();
removeExtraEmptyScreen(true, null, 0, true);
}
} else if (mDragInfo != null) {
CellLayout cellLayout;