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Revert "Revert "Extract out common adapter logic to support diff..."
Revert^2 "Fixing AdapterItem import" 1a27c278d6c6594b552b620b4d2b67e68bef23f2 Change-Id: Ia3bf9f0b3aaff0d1e2d102320e917462b38935b2
This commit is contained in:
Abhilasha Chahal
333
src/com/android/launcher3/allapps/BaseAllAppsAdapter.java
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333
src/com/android/launcher3/allapps/BaseAllAppsAdapter.java
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/*
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* Copyright (C) 2022 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.allapps;
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import static com.android.launcher3.touch.ItemLongClickListener.INSTANCE_ALL_APPS;
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import android.content.Context;
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import android.content.res.Resources;
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import android.view.Gravity;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.view.View.OnFocusChangeListener;
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import android.view.View.OnLongClickListener;
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import android.view.ViewGroup;
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import android.widget.TextView;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.recyclerview.widget.RecyclerView;
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import com.android.launcher3.BubbleTextView;
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import com.android.launcher3.R;
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import com.android.launcher3.config.FeatureFlags;
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import com.android.launcher3.model.data.AppInfo;
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import com.android.launcher3.model.data.ItemInfoWithIcon;
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import com.android.launcher3.views.ActivityContext;
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import java.util.Arrays;
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/**
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* Adapter for all the apps.
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*
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* @param <T> Type of context inflating all apps.
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*/
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public abstract class BaseAllAppsAdapter<T extends Context & ActivityContext> extends
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RecyclerView.Adapter<BaseAllAppsAdapter.ViewHolder> {
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public static final String TAG = "BaseAllAppsAdapter";
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// A normal icon
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public static final int VIEW_TYPE_ICON = 1 << 1;
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// The message shown when there are no filtered results
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public static final int VIEW_TYPE_EMPTY_SEARCH = 1 << 2;
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// The message to continue to a market search when there are no filtered results
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public static final int VIEW_TYPE_SEARCH_MARKET = 1 << 3;
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// We use various dividers for various purposes. They share enough attributes to reuse layouts,
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// but differ in enough attributes to require different view types
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// A divider that separates the apps list and the search market button
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public static final int VIEW_TYPE_ALL_APPS_DIVIDER = 1 << 4;
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// Common view type masks
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public static final int VIEW_TYPE_MASK_DIVIDER = VIEW_TYPE_ALL_APPS_DIVIDER;
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public static final int VIEW_TYPE_MASK_ICON = VIEW_TYPE_ICON;
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protected final BaseAdapterProvider[] mAdapterProviders;
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/**
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* ViewHolder for each icon.
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*/
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public static class ViewHolder extends RecyclerView.ViewHolder {
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public ViewHolder(View v) {
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super(v);
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}
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}
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/** Sets the number of apps to be displayed in one row of the all apps screen. */
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public abstract void setAppsPerRow(int appsPerRow);
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/**
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* Info about a particular adapter item (can be either section or app)
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*/
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public static class AdapterItem {
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/** Common properties */
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// The index of this adapter item in the list
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public int position;
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// The type of this item
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public int viewType;
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// The section name of this item. Note that there can be multiple items with different
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// sectionNames in the same section
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public String sectionName = null;
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// The row that this item shows up on
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public int rowIndex;
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// The index of this app in the row
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public int rowAppIndex;
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// The associated ItemInfoWithIcon for the item
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public ItemInfoWithIcon itemInfo = null;
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// The index of this app not including sections
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public int appIndex = -1;
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// Search section associated to result
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public DecorationInfo decorationInfo = null;
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/**
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* Factory method for AppIcon AdapterItem
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*/
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public static AdapterItem asApp(int pos, String sectionName, AppInfo appInfo,
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int appIndex) {
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AdapterItem item = new AdapterItem();
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item.viewType = VIEW_TYPE_ICON;
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item.position = pos;
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item.sectionName = sectionName;
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item.itemInfo = appInfo;
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item.appIndex = appIndex;
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return item;
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}
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/**
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* Factory method for empty search results view
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*/
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public static AdapterItem asEmptySearch(int pos) {
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AdapterItem item = new AdapterItem();
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item.viewType = VIEW_TYPE_EMPTY_SEARCH;
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item.position = pos;
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return item;
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}
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/**
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* Factory method for a dividerView in AllAppsSearch
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*/
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public static AdapterItem asAllAppsDivider(int pos) {
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AdapterItem item = new AdapterItem();
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item.viewType = VIEW_TYPE_ALL_APPS_DIVIDER;
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item.position = pos;
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return item;
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}
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/**
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* Factory method for a market search button
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*/
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public static AdapterItem asMarketSearch(int pos) {
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AdapterItem item = new AdapterItem();
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item.viewType = VIEW_TYPE_SEARCH_MARKET;
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item.position = pos;
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return item;
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}
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protected boolean isCountedForAccessibility() {
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return viewType == VIEW_TYPE_ICON || viewType == VIEW_TYPE_SEARCH_MARKET;
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}
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}
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protected final T mActivityContext;
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protected final AlphabeticalAppsList<T> mApps;
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// The text to show when there are no search results and no market search handler.
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protected String mEmptySearchMessage;
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protected int mAppsPerRow;
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private final LayoutInflater mLayoutInflater;
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private final OnClickListener mOnIconClickListener;
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private OnLongClickListener mOnIconLongClickListener = INSTANCE_ALL_APPS;
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private OnFocusChangeListener mIconFocusListener;
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// The click listener to send off to the market app, updated each time the search query changes.
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private OnClickListener mMarketSearchClickListener;
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private final int mExtraHeight;
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public BaseAllAppsAdapter(T activityContext, LayoutInflater inflater,
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AlphabeticalAppsList<T> apps, BaseAdapterProvider[] adapterProviders) {
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Resources res = activityContext.getResources();
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mActivityContext = activityContext;
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mApps = apps;
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mEmptySearchMessage = res.getString(R.string.all_apps_loading_message);
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mLayoutInflater = inflater;
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mOnIconClickListener = mActivityContext.getItemOnClickListener();
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mAdapterProviders = adapterProviders;
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mExtraHeight = res.getDimensionPixelSize(R.dimen.all_apps_height_extra);
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}
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/**
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* Sets the long click listener for icons
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*/
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public void setOnIconLongClickListener(@Nullable OnLongClickListener listener) {
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mOnIconLongClickListener = listener;
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}
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/** Checks if the passed viewType represents all apps divider. */
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public static boolean isDividerViewType(int viewType) {
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return isViewType(viewType, VIEW_TYPE_MASK_DIVIDER);
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}
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/** Checks if the passed viewType represents all apps icon. */
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public static boolean isIconViewType(int viewType) {
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return isViewType(viewType, VIEW_TYPE_MASK_ICON);
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}
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public void setIconFocusListener(OnFocusChangeListener focusListener) {
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mIconFocusListener = focusListener;
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}
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/**
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* Sets the last search query that was made, used to show when there are no results and to also
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* seed the intent for searching the market.
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*/
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public void setLastSearchQuery(String query, OnClickListener marketSearchClickListener) {
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Resources res = mActivityContext.getResources();
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mEmptySearchMessage = res.getString(R.string.all_apps_no_search_results, query);
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mMarketSearchClickListener = marketSearchClickListener;
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}
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/**
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* Returns the layout manager.
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*/
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public abstract RecyclerView.LayoutManager getLayoutManager();
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@Override
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public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
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switch (viewType) {
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case VIEW_TYPE_ICON:
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int layout = !FeatureFlags.ENABLE_TWOLINE_ALLAPPS.get() ? R.layout.all_apps_icon
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: R.layout.all_apps_icon_twoline;
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BubbleTextView icon = (BubbleTextView) mLayoutInflater.inflate(
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layout, parent, false);
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icon.setLongPressTimeoutFactor(1f);
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icon.setOnFocusChangeListener(mIconFocusListener);
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icon.setOnClickListener(mOnIconClickListener);
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icon.setOnLongClickListener(mOnIconLongClickListener);
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// Ensure the all apps icon height matches the workspace icons in portrait mode.
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icon.getLayoutParams().height =
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mActivityContext.getDeviceProfile().allAppsCellHeightPx;
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if (FeatureFlags.ENABLE_TWOLINE_ALLAPPS.get()) {
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icon.getLayoutParams().height += mExtraHeight;
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}
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return new ViewHolder(icon);
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case VIEW_TYPE_EMPTY_SEARCH:
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return new ViewHolder(mLayoutInflater.inflate(R.layout.all_apps_empty_search,
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parent, false));
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case VIEW_TYPE_SEARCH_MARKET:
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View searchMarketView = mLayoutInflater.inflate(R.layout.all_apps_search_market,
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parent, false);
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searchMarketView.setOnClickListener(mMarketSearchClickListener);
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return new ViewHolder(searchMarketView);
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case VIEW_TYPE_ALL_APPS_DIVIDER:
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return new ViewHolder(mLayoutInflater.inflate(
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R.layout.all_apps_divider, parent, false));
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default:
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BaseAdapterProvider adapterProvider = getAdapterProvider(viewType);
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if (adapterProvider != null) {
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return adapterProvider.onCreateViewHolder(mLayoutInflater, parent, viewType);
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}
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throw new RuntimeException("Unexpected view type" + viewType);
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}
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}
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@Override
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public void onBindViewHolder(ViewHolder holder, int position) {
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switch (holder.getItemViewType()) {
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case VIEW_TYPE_ICON:
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AdapterItem adapterItem = mApps.getAdapterItems().get(position);
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BubbleTextView icon = (BubbleTextView) holder.itemView;
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icon.reset();
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if (adapterItem.itemInfo instanceof AppInfo) {
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icon.applyFromApplicationInfo((AppInfo) adapterItem.itemInfo);
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} else {
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icon.applyFromItemInfoWithIcon(adapterItem.itemInfo);
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}
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break;
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case VIEW_TYPE_EMPTY_SEARCH:
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TextView emptyViewText = (TextView) holder.itemView;
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emptyViewText.setText(mEmptySearchMessage);
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emptyViewText.setGravity(mApps.hasNoFilteredResults() ? Gravity.CENTER :
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Gravity.START | Gravity.CENTER_VERTICAL);
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break;
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case VIEW_TYPE_SEARCH_MARKET:
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TextView searchView = (TextView) holder.itemView;
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if (mMarketSearchClickListener != null) {
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searchView.setVisibility(View.VISIBLE);
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} else {
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searchView.setVisibility(View.GONE);
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}
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break;
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case VIEW_TYPE_ALL_APPS_DIVIDER:
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// nothing to do
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break;
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default:
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BaseAdapterProvider adapterProvider = getAdapterProvider(holder.getItemViewType());
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if (adapterProvider != null) {
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adapterProvider.onBindView(holder, position);
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}
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}
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}
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@Override
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public void onViewRecycled(@NonNull ViewHolder holder) {
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super.onViewRecycled(holder);
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}
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@Override
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public boolean onFailedToRecycleView(ViewHolder holder) {
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// Always recycle and we will reset the view when it is bound
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return true;
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}
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@Override
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public int getItemCount() {
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return mApps.getAdapterItems().size();
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}
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@Override
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public int getItemViewType(int position) {
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AdapterItem item = mApps.getAdapterItems().get(position);
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return item.viewType;
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}
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protected static boolean isViewType(int viewType, int viewTypeMask) {
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return (viewType & viewTypeMask) != 0;
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}
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@Nullable
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protected BaseAdapterProvider getAdapterProvider(int viewType) {
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return Arrays.stream(mAdapterProviders).filter(
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adapterProvider -> adapterProvider.isViewSupported(viewType)).findFirst().orElse(
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null);
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}
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}
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