speeding up transition from other apps -> Launcher
diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index 7ee03fc..43510c2 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -78,6 +78,7 @@
import android.view.View;
import android.view.View.OnLongClickListener;
import android.view.ViewGroup;
+import android.view.ViewTreeObserver;
import android.view.WindowManager;
import android.view.accessibility.AccessibilityEvent;
import android.view.animation.AccelerateDecelerateInterpolator;
@@ -161,6 +162,7 @@
private enum State { WORKSPACE, APPS_CUSTOMIZE, APPS_CUSTOMIZE_SPRING_LOADED };
private State mState = State.WORKSPACE;
private AnimatorSet mStateAnimation;
+ private AnimatorSet mDividerAnimator;
static final int APPWIDGET_HOST_ID = 1024;
private static final int EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT = 300;
@@ -177,8 +179,11 @@
private LayoutInflater mInflater;
- private DragController mDragController;
private Workspace mWorkspace;
+ private View mQsbDivider;
+ private View mDockDivider;
+ private DragLayer mDragLayer;
+ private DragController mDragController;
private AppWidgetManager mAppWidgetManager;
private LauncherAppWidgetHost mAppWidgetHost;
@@ -241,7 +246,6 @@
static final ArrayList<String> sDumpLogs = new ArrayList<String>();
- private DragLayer mDragLayer;
private BubbleTextView mWaitingForResume;
@@ -560,7 +564,24 @@
// market intent, so refresh the icon
updateAppMarketIcon();
if (!mWorkspaceLoading) {
- mWorkspace.post(mBuildLayersRunnable);
+ final ViewTreeObserver observer = mWorkspace.getViewTreeObserver();
+ final Workspace workspace = mWorkspace;
+ // We want to let Launcher draw itself at least once before we force it to build
+ // layers on all the workspace pages, so that transitioning to Launcher from other
+ // apps is nice and speedy. Usually the first call to preDraw doesn't correspond to
+ // a true draw so we wait until the second preDraw call to be safe
+ observer.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
+ boolean mFirstTime = true;
+ public boolean onPreDraw() {
+ if (mFirstTime) {
+ mFirstTime = false;
+ } else {
+ workspace.post(mBuildLayersRunnable);
+ observer.removeOnPreDrawListener(this);
+ }
+ return true;
+ }
+ });
}
clearTypedText();
}
@@ -726,6 +747,8 @@
mDragLayer = (DragLayer) findViewById(R.id.drag_layer);
mWorkspace = (Workspace) mDragLayer.findViewById(R.id.workspace);
+ mQsbDivider = (ImageView) findViewById(R.id.qsb_divider);
+ mDockDivider = (ImageView) findViewById(R.id.dock_divider);
// Setup the drag layer
mDragLayer.setup(this, dragController);
@@ -2252,7 +2275,7 @@
if (!springLoaded && !LauncherApplication.isScreenLarge()) {
// Hide the workspace scrollbar
mWorkspace.hideScrollingIndicator(true);
- mWorkspace.hideDockDivider(true);
+ hideDockDivider();
}
if (!animationCancelled) {
updateWallpaperVisibility(false);
@@ -2294,7 +2317,7 @@
if (!springLoaded && !LauncherApplication.isScreenLarge()) {
// Hide the workspace scrollbar
mWorkspace.hideScrollingIndicator(true);
- mWorkspace.hideDockDivider(true);
+ hideDockDivider();
}
}
updateWallpaperVisibility(false);
@@ -2306,7 +2329,7 @@
* This is the opposite of showAppsCustomizeHelper.
* @param animated If true, the transition will be animated.
*/
- private void hideAppsCustomizeHelper(boolean animated) {
+ private void hideAppsCustomizeHelper(boolean animated, final boolean springLoaded) {
if (mStateAnimation != null) {
mStateAnimation.cancel();
mStateAnimation = null;
@@ -2370,6 +2393,7 @@
((LauncherTransitionable) fromView).onLauncherTransitionStart(instance, null, true);
((LauncherTransitionable) fromView).onLauncherTransitionEnd(instance, null, true);
}
+ mWorkspace.hideScrollingIndicator(false);
}
}
@@ -2380,10 +2404,12 @@
mWorkspace.changeState(Workspace.State.NORMAL, animated, stagger);
if (mState != State.WORKSPACE) {
mWorkspace.setVisibility(View.VISIBLE);
- hideAppsCustomizeHelper(animated);
+ hideAppsCustomizeHelper(animated, false);
// Show the search bar and hotseat
mSearchDropTargetBar.showSearchBar(animated);
+ // We only need to animate in the dock divider if we're going from spring loaded mode
+ showDockDivider(animated && mState == State.APPS_CUSTOMIZE_SPRING_LOADED);
// Set focus to the AppsCustomize button
if (mAllAppsButton != null) {
@@ -2391,8 +2417,7 @@
}
}
- mWorkspace.showDockDivider(!animated);
- mWorkspace.flashScrollingIndicator();
+ mWorkspace.flashScrollingIndicator(animated);
// Change the state *after* we've called all the transition code
mState = State.WORKSPACE;
@@ -2429,7 +2454,8 @@
void enterSpringLoadedDragMode() {
if (mState == State.APPS_CUSTOMIZE) {
mWorkspace.changeState(Workspace.State.SPRING_LOADED);
- hideAppsCustomizeHelper(true);
+ hideAppsCustomizeHelper(true, true);
+ hideDockDivider();
mState = State.APPS_CUSTOMIZE_SPRING_LOADED;
}
}
@@ -2466,6 +2492,33 @@
// Otherwise, we are not in spring loaded mode, so don't do anything.
}
+ void hideDockDivider() {
+ if (mQsbDivider != null && mDockDivider != null) {
+ mQsbDivider.setVisibility(View.INVISIBLE);
+ mDockDivider.setVisibility(View.INVISIBLE);
+ }
+ }
+
+ void showDockDivider(boolean animated) {
+ if (mQsbDivider != null && mDockDivider != null) {
+ mQsbDivider.setVisibility(View.VISIBLE);
+ mDockDivider.setVisibility(View.VISIBLE);
+ if (mDividerAnimator != null) {
+ mDividerAnimator.cancel();
+ mQsbDivider.setAlpha(1f);
+ mDockDivider.setAlpha(1f);
+ mDividerAnimator = null;
+ }
+ if (animated) {
+ mDividerAnimator = new AnimatorSet();
+ mDividerAnimator.playTogether(ObjectAnimator.ofFloat(mQsbDivider, "alpha", 1f),
+ ObjectAnimator.ofFloat(mDockDivider, "alpha", 1f));
+ mDividerAnimator.setDuration(mSearchDropTargetBar.getTransitionInDuration());
+ mDividerAnimator.start();
+ }
+ }
+ }
+
void lockAllApps() {
// TODO
}