Hyunyoung Song
ac5f6af148
- This change has no effect on actual functionality but to make it easier for widget tray to inherit the goodness of the 1) fast scroller functionality 2) unify the scroll look and feel with the all apps view b/21375339 Change-Id: Ib859b1c3352c0b69f16549ded8f20eb82cf58ba8
112 lines
3.0 KiB
Java
112 lines
3.0 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.widget;
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import android.content.Context;
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import android.graphics.Rect;
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import android.graphics.drawable.Drawable;
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import android.support.v7.widget.RecyclerView;
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import android.util.AttributeSet;
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import android.view.MotionEvent;
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import com.android.launcher3.BaseRecyclerView;
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import com.android.launcher3.model.WidgetsModel;
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/**
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* The widgets recycler view.
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*/
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public class WidgetsRecyclerView extends BaseRecyclerView {
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private WidgetsModel mWidgets;
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private Rect mBackgroundPadding = new Rect();
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public WidgetsRecyclerView(Context context) {
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this(context, null);
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}
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public WidgetsRecyclerView(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public WidgetsRecyclerView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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}
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@Override
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protected void onFinishInflate() {
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super.onFinishInflate();
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addOnItemTouchListener(this);
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}
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public void updateBackgroundPadding(Drawable background) {
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background.getPadding(mBackgroundPadding);
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}
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/**
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* Sets the widget model in this view, used to determine the fast scroll position.
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*/
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public void setWidgets(WidgetsModel widgets) {
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mWidgets = widgets;
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}
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/**
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* Maps the touch (from 0..1) to the adapter position that should be visible.
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*/
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@Override
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public String scrollToPositionAtProgress(float touchFraction) {
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// Ensure that we have any sections
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return "";
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}
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/**
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* Updates the bounds for the scrollbar.
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*/
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@Override
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public void updateVerticalScrollbarBounds() {
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int rowCount = mWidgets.getPackageSize();
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// Skip early if there are no items.
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if (rowCount == 0) {
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verticalScrollbarBounds.setEmpty();
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return;
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}
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int x, y;
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getCurScrollState(scrollPosState);
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if (scrollPosState.rowIndex < 0) {
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verticalScrollbarBounds.setEmpty();
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}
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// TODO
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}
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/**
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* Returns the current scroll state.
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*/
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private void getCurScrollState(ScrollPositionState stateOut) {
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stateOut.rowIndex = -1;
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stateOut.rowTopOffset = -1;
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stateOut.rowHeight = -1;
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int rowCount = mWidgets.getPackageSize();
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// Return early if there are no items
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if (rowCount == 0) {
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return;
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}
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// TODO
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}
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} |