Launcher2 is now Launcher3.
Changes include
- moving from com.android.launcher{,2} to
com.android.launcher3
- removing wallpapers
- new temporary icon
Change-Id: I1eabd06059e94a8f3bdf6b620777bd1d2b7c212b
diff --git a/src/com/android/launcher3/AppsCustomizeTabHost.java b/src/com/android/launcher3/AppsCustomizeTabHost.java
new file mode 100644
index 0000000..5d50fec
--- /dev/null
+++ b/src/com/android/launcher3/AppsCustomizeTabHost.java
@@ -0,0 +1,482 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.content.Context;
+import android.content.res.Resources;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+import android.widget.LinearLayout;
+import android.widget.TabHost;
+import android.widget.TabWidget;
+import android.widget.TextView;
+
+import com.android.launcher3.R;
+
+import java.util.ArrayList;
+
+public class AppsCustomizeTabHost extends TabHost implements LauncherTransitionable,
+ TabHost.OnTabChangeListener {
+ static final String LOG_TAG = "AppsCustomizeTabHost";
+
+ private static final String APPS_TAB_TAG = "APPS";
+ private static final String WIDGETS_TAB_TAG = "WIDGETS";
+
+ private final LayoutInflater mLayoutInflater;
+ private ViewGroup mTabs;
+ private ViewGroup mTabsContainer;
+ private AppsCustomizePagedView mAppsCustomizePane;
+ private FrameLayout mAnimationBuffer;
+ private LinearLayout mContent;
+
+ private boolean mInTransition;
+ private boolean mTransitioningToWorkspace;
+ private boolean mResetAfterTransition;
+ private Runnable mRelayoutAndMakeVisible;
+
+ public AppsCustomizeTabHost(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ mLayoutInflater = LayoutInflater.from(context);
+ mRelayoutAndMakeVisible = new Runnable() {
+ public void run() {
+ mTabs.requestLayout();
+ mTabsContainer.setAlpha(1f);
+ }
+ };
+ }
+
+ /**
+ * Convenience methods to select specific tabs. We want to set the content type immediately
+ * in these cases, but we note that we still call setCurrentTabByTag() so that the tab view
+ * reflects the new content (but doesn't do the animation and logic associated with changing
+ * tabs manually).
+ */
+ void setContentTypeImmediate(AppsCustomizePagedView.ContentType type) {
+ setOnTabChangedListener(null);
+ onTabChangedStart();
+ onTabChangedEnd(type);
+ setCurrentTabByTag(getTabTagForContentType(type));
+ setOnTabChangedListener(this);
+ }
+ void selectAppsTab() {
+ setContentTypeImmediate(AppsCustomizePagedView.ContentType.Applications);
+ }
+ void selectWidgetsTab() {
+ setContentTypeImmediate(AppsCustomizePagedView.ContentType.Widgets);
+ }
+
+ /**
+ * Setup the tab host and create all necessary tabs.
+ */
+ @Override
+ protected void onFinishInflate() {
+ // Setup the tab host
+ setup();
+
+ final ViewGroup tabsContainer = (ViewGroup) findViewById(R.id.tabs_container);
+ final TabWidget tabs = getTabWidget();
+ final AppsCustomizePagedView appsCustomizePane = (AppsCustomizePagedView)
+ findViewById(R.id.apps_customize_pane_content);
+ mTabs = tabs;
+ mTabsContainer = tabsContainer;
+ mAppsCustomizePane = appsCustomizePane;
+ mAnimationBuffer = (FrameLayout) findViewById(R.id.animation_buffer);
+ mContent = (LinearLayout) findViewById(R.id.apps_customize_content);
+ if (tabs == null || mAppsCustomizePane == null) throw new Resources.NotFoundException();
+
+ // Configure the tabs content factory to return the same paged view (that we change the
+ // content filter on)
+ TabContentFactory contentFactory = new TabContentFactory() {
+ public View createTabContent(String tag) {
+ return appsCustomizePane;
+ }
+ };
+
+ // Create the tabs
+ TextView tabView;
+ String label;
+ label = getContext().getString(R.string.all_apps_button_label);
+ tabView = (TextView) mLayoutInflater.inflate(R.layout.tab_widget_indicator, tabs, false);
+ tabView.setText(label);
+ tabView.setContentDescription(label);
+ addTab(newTabSpec(APPS_TAB_TAG).setIndicator(tabView).setContent(contentFactory));
+ label = getContext().getString(R.string.widgets_tab_label);
+ tabView = (TextView) mLayoutInflater.inflate(R.layout.tab_widget_indicator, tabs, false);
+ tabView.setText(label);
+ tabView.setContentDescription(label);
+ addTab(newTabSpec(WIDGETS_TAB_TAG).setIndicator(tabView).setContent(contentFactory));
+ setOnTabChangedListener(this);
+
+ // Setup the key listener to jump between the last tab view and the market icon
+ AppsCustomizeTabKeyEventListener keyListener = new AppsCustomizeTabKeyEventListener();
+ View lastTab = tabs.getChildTabViewAt(tabs.getTabCount() - 1);
+ lastTab.setOnKeyListener(keyListener);
+ View shopButton = findViewById(R.id.market_button);
+ shopButton.setOnKeyListener(keyListener);
+
+ // Hide the tab bar until we measure
+ mTabsContainer.setAlpha(0f);
+ }
+
+ @Override
+ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+ boolean remeasureTabWidth = (mTabs.getLayoutParams().width <= 0);
+ super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+
+ // Set the width of the tab list to the content width
+ if (remeasureTabWidth) {
+ int contentWidth = mAppsCustomizePane.getPageContentWidth();
+ if (contentWidth > 0 && mTabs.getLayoutParams().width != contentWidth) {
+ // Set the width and show the tab bar
+ mTabs.getLayoutParams().width = contentWidth;
+ mRelayoutAndMakeVisible.run();
+ }
+
+ super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+ }
+ }
+
+ public boolean onInterceptTouchEvent(MotionEvent ev) {
+ // If we are mid transitioning to the workspace, then intercept touch events here so we
+ // can ignore them, otherwise we just let all apps handle the touch events.
+ if (mInTransition && mTransitioningToWorkspace) {
+ return true;
+ }
+ return super.onInterceptTouchEvent(ev);
+ };
+
+ @Override
+ public boolean onTouchEvent(MotionEvent event) {
+ // Allow touch events to fall through to the workspace if we are transitioning there
+ if (mInTransition && mTransitioningToWorkspace) {
+ return super.onTouchEvent(event);
+ }
+
+ // Intercept all touch events up to the bottom of the AppsCustomizePane so they do not fall
+ // through to the workspace and trigger showWorkspace()
+ if (event.getY() < mAppsCustomizePane.getBottom()) {
+ return true;
+ }
+ return super.onTouchEvent(event);
+ }
+
+ private void onTabChangedStart() {
+ mAppsCustomizePane.hideScrollingIndicator(false);
+ }
+
+ private void reloadCurrentPage() {
+ if (!LauncherApplication.isScreenLarge()) {
+ mAppsCustomizePane.flashScrollingIndicator(true);
+ }
+ mAppsCustomizePane.loadAssociatedPages(mAppsCustomizePane.getCurrentPage());
+ mAppsCustomizePane.requestFocus();
+ }
+
+ private void onTabChangedEnd(AppsCustomizePagedView.ContentType type) {
+ mAppsCustomizePane.setContentType(type);
+ }
+
+ @Override
+ public void onTabChanged(String tabId) {
+ final AppsCustomizePagedView.ContentType type = getContentTypeForTabTag(tabId);
+
+ // Animate the changing of the tab content by fading pages in and out
+ final Resources res = getResources();
+ final int duration = res.getInteger(R.integer.config_tabTransitionDuration);
+
+ // We post a runnable here because there is a delay while the first page is loading and
+ // the feedback from having changed the tab almost feels better than having it stick
+ post(new Runnable() {
+ @Override
+ public void run() {
+ if (mAppsCustomizePane.getMeasuredWidth() <= 0 ||
+ mAppsCustomizePane.getMeasuredHeight() <= 0) {
+ reloadCurrentPage();
+ return;
+ }
+
+ // Take the visible pages and re-parent them temporarily to mAnimatorBuffer
+ // and then cross fade to the new pages
+ int[] visiblePageRange = new int[2];
+ mAppsCustomizePane.getVisiblePages(visiblePageRange);
+ if (visiblePageRange[0] == -1 && visiblePageRange[1] == -1) {
+ // If we can't get the visible page ranges, then just skip the animation
+ reloadCurrentPage();
+ return;
+ }
+ ArrayList<View> visiblePages = new ArrayList<View>();
+ for (int i = visiblePageRange[0]; i <= visiblePageRange[1]; i++) {
+ visiblePages.add(mAppsCustomizePane.getPageAt(i));
+ }
+
+ // We want the pages to be rendered in exactly the same way as they were when
+ // their parent was mAppsCustomizePane -- so set the scroll on mAnimationBuffer
+ // to be exactly the same as mAppsCustomizePane, and below, set the left/top
+ // parameters to be correct for each of the pages
+ mAnimationBuffer.scrollTo(mAppsCustomizePane.getScrollX(), 0);
+
+ // mAppsCustomizePane renders its children in reverse order, so
+ // add the pages to mAnimationBuffer in reverse order to match that behavior
+ for (int i = visiblePages.size() - 1; i >= 0; i--) {
+ View child = visiblePages.get(i);
+ if (child instanceof PagedViewCellLayout) {
+ ((PagedViewCellLayout) child).resetChildrenOnKeyListeners();
+ } else if (child instanceof PagedViewGridLayout) {
+ ((PagedViewGridLayout) child).resetChildrenOnKeyListeners();
+ }
+ PagedViewWidget.setDeletePreviewsWhenDetachedFromWindow(false);
+ mAppsCustomizePane.removeView(child);
+ PagedViewWidget.setDeletePreviewsWhenDetachedFromWindow(true);
+ mAnimationBuffer.setAlpha(1f);
+ mAnimationBuffer.setVisibility(View.VISIBLE);
+ LayoutParams p = new FrameLayout.LayoutParams(child.getMeasuredWidth(),
+ child.getMeasuredHeight());
+ p.setMargins((int) child.getLeft(), (int) child.getTop(), 0, 0);
+ mAnimationBuffer.addView(child, p);
+ }
+
+ // Toggle the new content
+ onTabChangedStart();
+ onTabChangedEnd(type);
+
+ // Animate the transition
+ ObjectAnimator outAnim = LauncherAnimUtils.ofFloat(mAnimationBuffer, "alpha", 0f);
+ outAnim.addListener(new AnimatorListenerAdapter() {
+ private void clearAnimationBuffer() {
+ mAnimationBuffer.setVisibility(View.GONE);
+ PagedViewWidget.setRecyclePreviewsWhenDetachedFromWindow(false);
+ mAnimationBuffer.removeAllViews();
+ PagedViewWidget.setRecyclePreviewsWhenDetachedFromWindow(true);
+ }
+ @Override
+ public void onAnimationEnd(Animator animation) {
+ clearAnimationBuffer();
+ }
+ @Override
+ public void onAnimationCancel(Animator animation) {
+ clearAnimationBuffer();
+ }
+ });
+ ObjectAnimator inAnim = LauncherAnimUtils.ofFloat(mAppsCustomizePane, "alpha", 1f);
+ inAnim.addListener(new AnimatorListenerAdapter() {
+ @Override
+ public void onAnimationEnd(Animator animation) {
+ reloadCurrentPage();
+ }
+ });
+
+ final AnimatorSet animSet = LauncherAnimUtils.createAnimatorSet();
+ animSet.playTogether(outAnim, inAnim);
+ animSet.setDuration(duration);
+ animSet.start();
+ }
+ });
+ }
+
+ public void setCurrentTabFromContent(AppsCustomizePagedView.ContentType type) {
+ setOnTabChangedListener(null);
+ setCurrentTabByTag(getTabTagForContentType(type));
+ setOnTabChangedListener(this);
+ }
+
+ /**
+ * Returns the content type for the specified tab tag.
+ */
+ public AppsCustomizePagedView.ContentType getContentTypeForTabTag(String tag) {
+ if (tag.equals(APPS_TAB_TAG)) {
+ return AppsCustomizePagedView.ContentType.Applications;
+ } else if (tag.equals(WIDGETS_TAB_TAG)) {
+ return AppsCustomizePagedView.ContentType.Widgets;
+ }
+ return AppsCustomizePagedView.ContentType.Applications;
+ }
+
+ /**
+ * Returns the tab tag for a given content type.
+ */
+ public String getTabTagForContentType(AppsCustomizePagedView.ContentType type) {
+ if (type == AppsCustomizePagedView.ContentType.Applications) {
+ return APPS_TAB_TAG;
+ } else if (type == AppsCustomizePagedView.ContentType.Widgets) {
+ return WIDGETS_TAB_TAG;
+ }
+ return APPS_TAB_TAG;
+ }
+
+ /**
+ * Disable focus on anything under this view in the hierarchy if we are not visible.
+ */
+ @Override
+ public int getDescendantFocusability() {
+ if (getVisibility() != View.VISIBLE) {
+ return ViewGroup.FOCUS_BLOCK_DESCENDANTS;
+ }
+ return super.getDescendantFocusability();
+ }
+
+ void reset() {
+ if (mInTransition) {
+ // Defer to after the transition to reset
+ mResetAfterTransition = true;
+ } else {
+ // Reset immediately
+ mAppsCustomizePane.reset();
+ }
+ }
+
+ private void enableAndBuildHardwareLayer() {
+ // isHardwareAccelerated() checks if we're attached to a window and if that
+ // window is HW accelerated-- we were sometimes not attached to a window
+ // and buildLayer was throwing an IllegalStateException
+ if (isHardwareAccelerated()) {
+ // Turn on hardware layers for performance
+ setLayerType(LAYER_TYPE_HARDWARE, null);
+
+ // force building the layer, so you don't get a blip early in an animation
+ // when the layer is created layer
+ buildLayer();
+ }
+ }
+
+ @Override
+ public View getContent() {
+ return mContent;
+ }
+
+ /* LauncherTransitionable overrides */
+ @Override
+ public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) {
+ mAppsCustomizePane.onLauncherTransitionPrepare(l, animated, toWorkspace);
+ mInTransition = true;
+ mTransitioningToWorkspace = toWorkspace;
+
+ if (toWorkspace) {
+ // Going from All Apps -> Workspace
+ setVisibilityOfSiblingsWithLowerZOrder(VISIBLE);
+ // Stop the scrolling indicator - we don't want All Apps to be invalidating itself
+ // during the transition, especially since it has a hardware layer set on it
+ mAppsCustomizePane.cancelScrollingIndicatorAnimations();
+ } else {
+ // Going from Workspace -> All Apps
+ mContent.setVisibility(VISIBLE);
+
+ // Make sure the current page is loaded (we start loading the side pages after the
+ // transition to prevent slowing down the animation)
+ mAppsCustomizePane.loadAssociatedPages(mAppsCustomizePane.getCurrentPage(), true);
+
+ if (!LauncherApplication.isScreenLarge()) {
+ mAppsCustomizePane.showScrollingIndicator(true);
+ }
+ }
+
+ if (mResetAfterTransition) {
+ mAppsCustomizePane.reset();
+ mResetAfterTransition = false;
+ }
+ }
+
+ @Override
+ public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) {
+ if (animated) {
+ enableAndBuildHardwareLayer();
+ }
+ }
+
+ @Override
+ public void onLauncherTransitionStep(Launcher l, float t) {
+ // Do nothing
+ }
+
+ @Override
+ public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) {
+ mAppsCustomizePane.onLauncherTransitionEnd(l, animated, toWorkspace);
+ mInTransition = false;
+ if (animated) {
+ setLayerType(LAYER_TYPE_NONE, null);
+ }
+
+ if (!toWorkspace) {
+ // Dismiss the workspace cling
+ l.dismissWorkspaceCling(null);
+ // Show the all apps cling (if not already shown)
+ mAppsCustomizePane.showAllAppsCling();
+ // Make sure adjacent pages are loaded (we wait until after the transition to
+ // prevent slowing down the animation)
+ mAppsCustomizePane.loadAssociatedPages(mAppsCustomizePane.getCurrentPage());
+
+ if (!LauncherApplication.isScreenLarge()) {
+ mAppsCustomizePane.hideScrollingIndicator(false);
+ }
+
+ // Going from Workspace -> All Apps
+ // NOTE: We should do this at the end since we check visibility state in some of the
+ // cling initialization/dismiss code above.
+ setVisibilityOfSiblingsWithLowerZOrder(INVISIBLE);
+ }
+ }
+
+ private void setVisibilityOfSiblingsWithLowerZOrder(int visibility) {
+ ViewGroup parent = (ViewGroup) getParent();
+ if (parent == null) return;
+
+ final int count = parent.getChildCount();
+ if (!isChildrenDrawingOrderEnabled()) {
+ for (int i = 0; i < count; i++) {
+ final View child = parent.getChildAt(i);
+ if (child == this) {
+ break;
+ } else {
+ if (child.getVisibility() == GONE) {
+ continue;
+ }
+ child.setVisibility(visibility);
+ }
+ }
+ } else {
+ throw new RuntimeException("Failed; can't get z-order of views");
+ }
+ }
+
+ public void onWindowVisible() {
+ if (getVisibility() == VISIBLE) {
+ mContent.setVisibility(VISIBLE);
+ // We unload the widget previews when the UI is hidden, so need to reload pages
+ // Load the current page synchronously, and the neighboring pages asynchronously
+ mAppsCustomizePane.loadAssociatedPages(mAppsCustomizePane.getCurrentPage(), true);
+ mAppsCustomizePane.loadAssociatedPages(mAppsCustomizePane.getCurrentPage());
+ }
+ }
+
+ public void onTrimMemory() {
+ mContent.setVisibility(GONE);
+ // Clear the widget pages of all their subviews - this will trigger the widget previews
+ // to delete their bitmaps
+ mAppsCustomizePane.clearAllWidgetPages();
+ }
+
+ boolean isTransitioning() {
+ return mInTransition;
+ }
+}