Make common base class to update container bounds and to handle scroll logic. (9480415d) · Commits · e / os / android_packages_apps_Trebuchet

res/values/dimens.xml

+3 −2

Original line number	Diff line number	Diff line
		@@ -50,8 +50,6 @@
		<dimen name="apps_container_width">0dp</dimen>
		<dimen name="apps_container_height">0dp</dimen>
		<dimen name="apps_container_inset">8dp</dimen>
		<!-- Note: This needs to match the fixed insets for the search box -->
		<dimen name="apps_container_fixed_bounds_inset">8dp</dimen>
		<dimen name="apps_grid_view_start_margin">52dp</dimen>
		<dimen name="apps_grid_section_y_offset">8dp</dimen>
		<dimen name="apps_view_row_height">64dp</dimen>
		@@ -62,6 +60,9 @@
		<dimen name="apps_view_fast_scroll_popup_size">64dp</dimen>
		<dimen name="apps_view_fast_scroll_text_size">40dp</dimen>

		<!-- Note: This needs to match the fixed insets for the search box. -->
		<dimen name="container_fixed_bounds_inset">8dp</dimen>

		<!-- AllApps/Customize/AppsCustomize -->
		<dimen name="app_icon_size">48dp</dimen>
		<dimen name="apps_customize_horizontal_padding">0dp</dimen>

src/com/android/launcher3/AppsContainerRecyclerView.java

+2 −38

Original line number	Diff line number	Diff line
		@@ -30,23 +30,15 @@ import android.view.MotionEvent;
		import android.view.View;
		import android.view.ViewConfiguration;

		import com.android.launcher3.util.Thunk;

		import java.util.List;

		/**
		* A RecyclerView with custom fastscroll support. This is the main container for the all apps
		* icons.
		*/
		public class AppsContainerRecyclerView extends RecyclerView
		implements RecyclerView.OnItemTouchListener {
		public class AppsContainerRecyclerView extends BaseContainerRecyclerView {

		private static final float FAST_SCROLL_OVERLAY_Y_OFFSET_FACTOR = 1.5f;
		private static final int SCROLL_DELTA_THRESHOLD = 4;

		/** Keeps the last known scrolling delta/velocity along y-axis. */
		@Thunk int mDy = 0;
		private float mDeltaThreshold;

		private AlphabeticalAppsList mApps;
		private int mNumAppsPerRow;
		@@ -66,7 +58,6 @@ public class AppsContainerRecyclerView extends RecyclerView
		private int mScrollbarWidth;
		private int mScrollbarMinHeight;
		private int mScrollbarInset;
		private RecyclerView.OnScrollListener mScrollListenerProxy;

		public AppsContainerRecyclerView(Context context) {
		this(context, null);
		@@ -100,21 +91,6 @@ public class AppsContainerRecyclerView extends RecyclerView
		mScrollbarInset =
		res.getDimensionPixelSize(R.dimen.apps_view_fast_scroll_scrubber_touch_inset);
		setFastScrollerAlpha(getFastScrollerAlpha());
		mDeltaThreshold = getResources().getDisplayMetrics().density * SCROLL_DELTA_THRESHOLD;

		ScrollListener listener = new ScrollListener();
		setOnScrollListener(listener);
		}

		private class ScrollListener extends RecyclerView.OnScrollListener {
		public ScrollListener() {
		}

		@Override
		public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
		mDy = dy;
		mScrollListenerProxy.onScrolled(recyclerView, dx, dy);
		}
		}

		/**
		@@ -131,13 +107,6 @@ public class AppsContainerRecyclerView extends RecyclerView
		mNumAppsPerRow = rowSize;
		}

		/**
		* Sets an additional scroll listener, not necessary in master support lib.
		*/
		public void setOnScrollListenerProxy(RecyclerView.OnScrollListener listener) {
		mScrollListenerProxy = listener;
		}

		/**
		* Sets the fast scroller alpha.
		*/
		@@ -187,10 +156,6 @@ public class AppsContainerRecyclerView extends RecyclerView
		handleTouchEvent(ev);
		}

		public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
		// DO NOT REMOVE, NEEDED IMPLEMENTATION FOR M BUILDS
		}

		/**
		* Handles the touch event and determines whether to show the fast scroller (or updates it if
		* it is already showing).
		@@ -206,8 +171,7 @@ public class AppsContainerRecyclerView extends RecyclerView
		// Keep track of the down positions
		mDownX = mLastX = x;
		mDownY = mLastY = y;
		if ((Math.abs(mDy) < mDeltaThreshold &&
		getScrollState() != RecyclerView.SCROLL_STATE_IDLE)) {
		if (shouldStopScroll(ev)) {
		stopScroll();
		}
		break;

src/com/android/launcher3/AppsContainerView.java

+71 −102

Original line number	Diff line number	Diff line
		@@ -31,7 +31,6 @@ import android.view.ViewConfiguration;
		import android.view.inputmethod.EditorInfo;
		import android.view.inputmethod.InputMethodManager;
		import android.widget.EditText;
		import android.widget.FrameLayout;
		import android.widget.LinearLayout;
		import android.widget.TextView;
		import com.android.launcher3.util.Thunk;
		@@ -40,10 +39,10 @@ import java.util.List;


		/**
		* The all apps list view container.
		* The all apps view container.
		*/
		public class AppsContainerView extends FrameLayout implements DragSource, Insettable, TextWatcher,
		TextView.OnEditorActionListener, LauncherTransitionable, View.OnTouchListener,
		public class AppsContainerView extends BaseContainerView implements DragSource, Insettable,
		TextWatcher, TextView.OnEditorActionListener, LauncherTransitionable, View.OnTouchListener,
		View.OnClickListener, View.OnLongClickListener {

		public static final boolean GRID_MERGE_SECTIONS = true;
		@@ -73,13 +72,9 @@ public class AppsContainerView extends FrameLayout implements DragSource, Insett
		private int mNumAppsPerRow;
		private Point mLastTouchDownPos = new Point(-1, -1);
		private Point mLastTouchPos = new Point();
		private Rect mInsets = new Rect();
		private Rect mFixedBounds = new Rect();
		private int mContentMarginStart;
		// Normal container insets
		private int mContainerInset;
		// Fixed bounds container insets
		private int mFixedBoundsContainerInset;
		// RecyclerView scroll position
		@Thunk int mRecyclerViewScrollY;

		@@ -99,8 +94,6 @@ public class AppsContainerView extends FrameLayout implements DragSource, Insett

		mContainerInset = context.getResources().getDimensionPixelSize(
		R.dimen.apps_container_inset);
		mFixedBoundsContainerInset = context.getResources().getDimensionPixelSize(
		R.dimen.apps_container_fixed_bounds_inset);
		mLauncher = (Launcher) context;
		mNumAppsPerRow = grid.appsViewNumCols;
		mApps = new AlphabeticalAppsList(context, mNumAppsPerRow);
		@@ -146,8 +139,8 @@ public class AppsContainerView extends FrameLayout implements DragSource, Insett
		*/
		public void hideHeaderBar() {
		mHeaderView.setVisibility(View.GONE);
		updateBackgrounds();
		updatePaddings();
		onUpdateBackgrounds();
		onUpdatePaddings();
		}

		/**
		@@ -225,46 +218,81 @@ public class AppsContainerView extends FrameLayout implements DragSource, Insett
		if (mItemDecoration != null) {
		mAppsRecyclerView.addItemDecoration(mItemDecoration);
		}
		updateBackgrounds();
		updatePaddings();
		onUpdateBackgrounds();
		onUpdatePaddings();
		}

		@Override
		public void setInsets(Rect insets) {
		mInsets.set(insets);
		updatePaddings();
		}

		/**
		* Sets the fixed bounds for this Apps view.
		*/
		public void setFixedBounds(Context context, Rect fixedBounds) {
		if (!fixedBounds.isEmpty() && !fixedBounds.equals(mFixedBounds)) {
		protected void onFixedBoundsUpdated() {
		// Update the number of items in the grid
		LauncherAppState app = LauncherAppState.getInstance();
		DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
		if (grid.updateAppsViewNumCols(context.getResources(), fixedBounds.width())) {
		if (grid.updateAppsViewNumCols(getContext().getResources(), mFixedBounds.width())) {
		mNumAppsPerRow = grid.appsViewNumCols;
		mAppsRecyclerView.setNumAppsPerRow(mNumAppsPerRow);
		mAdapter.setNumAppsPerRow(mNumAppsPerRow);
		mApps.setNumAppsPerRow(mNumAppsPerRow);
		}
		}

		/**
		* Update the padding of the Apps view and children. To ensure that the RecyclerView has the
		* full width to handle touches right to the edge of the screen, we only apply the top and
		* bottom padding to the AppsContainerView and then the left/right padding on the RecyclerView
		* itself. In particular, the left/right padding is applied to the background of the view,
		* and then additionally inset by the start margin.
		*/
		@Override
		protected void onUpdatePaddings() {
		boolean isRtl = (getResources().getConfiguration().getLayoutDirection() ==
		LAYOUT_DIRECTION_RTL);
		boolean hasSearchBar = (mSearchBarEditView != null) &&
		(mSearchBarEditView.getVisibility() == View.VISIBLE);

		mFixedBounds.set(fixedBounds);
		if (Launcher.DISABLE_ALL_APPS_SEARCH_INTEGRATION) {
		mFixedBounds.top = mInsets.top;
		mFixedBounds.bottom = getMeasuredHeight();
		if (mFixedBounds.isEmpty()) {
		// If there are no fixed bounds, then use the default padding and insets
		setPadding(mInsets.left, mContainerInset + mInsets.top, mInsets.right,
		mContainerInset + mInsets.bottom);
		} else {
		// If there are fixed bounds, then we update the padding to reflect the fixed bounds.
		setPadding(mFixedBounds.left, mFixedBounds.top, getMeasuredWidth() - mFixedBounds.right,
		mInsets.bottom);
		}

		// Update the apps recycler view, inset it by the container inset as well
		int inset = mFixedBounds.isEmpty() ? mContainerInset : mFixedBoundsContainerInset;
		if (isRtl) {
		mAppsRecyclerView.setPadding(inset, inset, inset + mContentMarginStart, inset);
		} else {
		mAppsRecyclerView.setPadding(inset + mContentMarginStart, inset, inset, inset);
		}
		// Post the updates since they can trigger a relayout, and this call can be triggered from
		// a layout pass itself.
		post(new Runnable() {
		@Override
		public void run() {
		updateBackgrounds();
		updatePaddings();

		// Update the header bar
		if (hasSearchBar) {
		LinearLayout.LayoutParams lp =
		(LinearLayout.LayoutParams) mHeaderView.getLayoutParams();
		lp.leftMargin = lp.rightMargin = inset;
		}
		});
		}

		/**
		* Update the background of the Apps view and children.
		*/
		@Override
		protected void onUpdateBackgrounds() {
		int inset = mFixedBounds.isEmpty() ? mContainerInset : mFixedBoundsContainerInset;
		boolean hasSearchBar = (mSearchBarEditView != null) &&
		(mSearchBarEditView.getVisibility() == View.VISIBLE);

		// Update the background of the reveal view and list to be inset with the fixed bound
		// insets instead of the default insets
		mAppsRecyclerView.setBackground(new InsetDrawable(
		getContext().getResources().getDrawable(
		hasSearchBar ? R.drawable.apps_list_search_bg : R.drawable.apps_list_bg),
		inset, 0, inset, 0));
		getRevealView().setBackground(new InsetDrawable(
		getContext().getResources().getDrawable(R.drawable.apps_reveal_bg),
		inset, 0, inset, 0));
		}

		@Override
		@@ -530,65 +558,6 @@ public class AppsContainerView extends FrameLayout implements DragSource, Insett
		return false;
		}

		/**
		* Update the padding of the Apps view and children. To ensure that the RecyclerView has the
		* full width to handle touches right to the edge of the screen, we only apply the top and
		* bottom padding to the AppsContainerView and then the left/right padding on the RecyclerView
		* itself. In particular, the left/right padding is applied to the background of the view,
		* and then additionally inset by the start margin.
		*/
		private void updatePaddings() {
		boolean isRtl = (getResources().getConfiguration().getLayoutDirection() ==
		LAYOUT_DIRECTION_RTL);
		boolean hasSearchBar = (mSearchBarEditView != null) &&
		(mSearchBarEditView.getVisibility() == View.VISIBLE);

		if (mFixedBounds.isEmpty()) {
		// If there are no fixed bounds, then use the default padding and insets
		setPadding(mInsets.left, mContainerInset + mInsets.top, mInsets.right,
		mContainerInset + mInsets.bottom);
		} else {
		// If there are fixed bounds, then we update the padding to reflect the fixed bounds.
		setPadding(mFixedBounds.left, mFixedBounds.top + mFixedBoundsContainerInset,
		getMeasuredWidth() - mFixedBounds.right,
		mInsets.bottom + mFixedBoundsContainerInset);
		}

		// Update the apps recycler view
		int inset = mFixedBounds.isEmpty() ? mContainerInset : mFixedBoundsContainerInset;
		if (isRtl) {
		mAppsRecyclerView.setPadding(inset, inset, inset + mContentMarginStart, inset);
		} else {
		mAppsRecyclerView.setPadding(inset + mContentMarginStart, inset, inset, inset);
		}

		// Update the header
		if (hasSearchBar) {
		LinearLayout.LayoutParams lp =
		(LinearLayout.LayoutParams) mHeaderView.getLayoutParams();
		lp.leftMargin = lp.rightMargin = inset;
		}
		}

		/**
		* Update the background of the Apps view and children.
		*/
		private void updateBackgrounds() {
		int inset = mFixedBounds.isEmpty() ? mContainerInset : mFixedBoundsContainerInset;
		boolean hasSearchBar = (mSearchBarEditView != null) &&
		(mSearchBarEditView.getVisibility() == View.VISIBLE);

		// Update the background of the reveal view and list to be inset with the fixed bound
		// insets instead of the default insets
		mAppsRecyclerView.setBackground(new InsetDrawable(
		getContext().getResources().getDrawable(
		hasSearchBar ? R.drawable.apps_list_search_bg : R.drawable.apps_list_bg),
		inset, 0, inset, 0));
		getRevealView().setBackground(new InsetDrawable(
		getContext().getResources().getDrawable(R.drawable.apps_reveal_bg),
		inset, 0, inset, 0));
		}

		/**
		* Shows the search field.
		*/

src/com/android/launcher3/BaseContainerRecyclerView.java

0 → 100644

+113 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2015 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.content.Context;
		import android.support.v7.widget.RecyclerView;
		import android.util.AttributeSet;
		import android.view.MotionEvent;
		import com.android.launcher3.util.Thunk;

		/**
		* A base {@link RecyclerView}, which will NOT intercept a touch sequence unless the scrolling
		* velocity is below a predefined threshold.
		*/
		public class BaseContainerRecyclerView extends RecyclerView
		implements RecyclerView.OnItemTouchListener {

		private static final int SCROLL_DELTA_THRESHOLD_DP = 4;

		/** Keeps the last known scrolling delta/velocity along y-axis. */
		@Thunk int mDy = 0;
		private float mDeltaThreshold;
		private RecyclerView.OnScrollListener mScrollListenerProxy;

		public BaseContainerRecyclerView(Context context) {
		this(context, null);
		}

		public BaseContainerRecyclerView(Context context, AttributeSet attrs) {
		this(context, attrs, 0);
		}

		public BaseContainerRecyclerView(Context context, AttributeSet attrs, int defStyleAttr) {
		super(context, attrs, defStyleAttr);
		mDeltaThreshold = getResources().getDisplayMetrics().density * SCROLL_DELTA_THRESHOLD_DP;

		ScrollListener listener = new ScrollListener();
		setOnScrollListener(listener);
		}

		private class ScrollListener extends OnScrollListener {
		public ScrollListener() {
		// Do nothing
		}

		@Override
		public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
		mDy = dy;
		if (mScrollListenerProxy != null) {
		mScrollListenerProxy.onScrolled(recyclerView, dx, dy);
		}
		}
		}

		/**
		* Sets an additional scroll listener, only needed for LMR1 version of the support lib.
		*/
		public void setOnScrollListenerProxy(RecyclerView.OnScrollListener listener) {
		mScrollListenerProxy = listener;
		}

		@Override
		protected void onFinishInflate() {
		super.onFinishInflate();
		addOnItemTouchListener(this);
		}

		@Override
		public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent ev) {
		if (shouldStopScroll(ev)) {
		stopScroll();
		}
		return false;
		}

		@Override
		public void onTouchEvent(RecyclerView rv, MotionEvent ev) {
		// Do nothing.
		}

		public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
		// DO NOT REMOVE, NEEDED IMPLEMENTATION FOR M BUILDS
		}

		/**
		* Returns whether this {@link MotionEvent} should trigger the scroll to be stopped.
		*/
		protected boolean shouldStopScroll(MotionEvent ev) {
		if (ev.getAction() == MotionEvent.ACTION_DOWN) {
		if ((Math.abs(mDy) < mDeltaThreshold &&
		getScrollState() != RecyclerView.SCROLL_STATE_IDLE)) {
		// now the touch events are being passed to the {@link WidgetCell} until the
		// touch sequence goes over the touch slop.
		return true;
		}
		}
		return false;
		}
		}
		No newline at end of file

src/com/android/launcher3/BaseContainerView.java

0 → 100644

+100 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2015 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.content.Context;
		import android.graphics.Rect;
		import android.util.AttributeSet;
		import android.widget.FrameLayout;

		/**
		* A base container view, which supports resizing.
		*/
		public class BaseContainerView extends FrameLayout implements Insettable {

		protected Rect mInsets = new Rect();
		protected Rect mFixedBounds = new Rect();
		protected int mFixedBoundsContainerInset;

		public BaseContainerView(Context context) {
		this(context, null);
		}

		public BaseContainerView(Context context, AttributeSet attrs) {
		this(context, attrs, 0);
		}

		public BaseContainerView(Context context, AttributeSet attrs, int defStyleAttr) {
		super(context, attrs, defStyleAttr);
		mFixedBoundsContainerInset = context.getResources().getDimensionPixelSize(
		R.dimen.container_fixed_bounds_inset);
		}

		@Override
		final public void setInsets(Rect insets) {
		mInsets.set(insets);
		onUpdateBackgrounds();
		onUpdatePaddings();
		}

		/**
		* Sets the fixed bounds for this container view.
		*/
		final public void setFixedBounds(Rect fixedBounds) {
		if (!fixedBounds.isEmpty() && !fixedBounds.equals(mFixedBounds)) {
		mFixedBounds.set(fixedBounds);
		if (Launcher.DISABLE_ALL_APPS_SEARCH_INTEGRATION) {
		mFixedBounds.top = mInsets.top;
		mFixedBounds.bottom = getMeasuredHeight();
		}
		// To ensure that the child RecyclerView has the full width to handle touches right to
		// the edge of the screen, we only apply the top and bottom padding to the bounds
		mFixedBounds.inset(0, mFixedBoundsContainerInset);
		onFixedBoundsUpdated();
		}
		// Post the updates since they can trigger a relayout, and this call can be triggered from
		// a layout pass itself.
		post(new Runnable() {
		@Override
		public void run() {
		onUpdateBackgrounds();
		onUpdatePaddings();
		}
		});
		}

		/**
		* Update the UI in response to a change in the fixed bounds.
		*/
		protected void onFixedBoundsUpdated() {
		// Do nothing
		}

		/**
		* Update the paddings in response to a change in the bounds or insets.
		*/
		protected void onUpdatePaddings() {
		// Do nothing
		}

		/**
		* Update the backgrounds in response to a change in the bounds or insets.
		*/
		protected void onUpdateBackgrounds() {
		// Do nothing
		}
		}
		No newline at end of file