/*
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* Copyright (C) 2016 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.settings.display;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.graphics.drawable.Drawable;
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import android.os.UserHandle;
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import android.util.AttributeSet;
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import android.util.IconDrawableFactory;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.ArrayAdapter;
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import android.widget.GridView;
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import android.widget.ImageView;
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import androidx.annotation.VisibleForTesting;
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import com.android.settings.R;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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public class AppGridView extends GridView {
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public AppGridView(Context context) {
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super(context);
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init(context);
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}
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public AppGridView(Context context, AttributeSet attrs) {
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super(context, attrs);
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init(context);
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}
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public AppGridView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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init(context);
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}
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public AppGridView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleResId) {
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super(context, attrs, defStyleAttr, defStyleResId);
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init(context);
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}
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private void init(Context context) {
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setAdapter(new AppsAdapter(context, R.layout.screen_zoom_preview_app_icon,
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android.R.id.text1, android.R.id.icon1));
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}
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/**
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* Loads application labels and icons.
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*/
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@VisibleForTesting
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public static class AppsAdapter extends ArrayAdapter<ActivityEntry> {
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private final PackageManager mPackageManager;
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private final int mIconResId;
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public AppsAdapter(Context context, int layout, int textResId, int iconResId) {
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super(context, layout, textResId);
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mIconResId = iconResId;
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mPackageManager = context.getPackageManager();
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loadAllApps();
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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final View view = super.getView(position, convertView, parent);
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final ActivityEntry entry = getItem(position);
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final ImageView iconView = view.findViewById(mIconResId);
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iconView.setImageDrawable(entry.getIcon());
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return view;
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}
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@Override
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public boolean hasStableIds() {
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return true;
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}
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@Override
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public long getItemId(int position) {
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return position;
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}
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@Override
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public boolean isEnabled(int position) {
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return false;
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}
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private void loadAllApps() {
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final int needAppCount = 6;
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final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
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mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
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final PackageManager pm = mPackageManager;
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final ArrayList<ActivityEntry> results = new ArrayList<>();
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final List<ResolveInfo> infos = pm.queryIntentActivities(mainIntent, 0);
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final IconDrawableFactory iconFactory = IconDrawableFactory.newInstance(getContext());
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for (ResolveInfo info : infos) {
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final CharSequence label = info.loadLabel(pm);
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if (label != null) {
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results.add(new ActivityEntry(info, label.toString(), iconFactory));
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}
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if (results.size() >= needAppCount) {
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break;
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}
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}
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Collections.sort(results);
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addAll(results);
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}
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}
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/**
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* Class used for caching the activity label and icon.
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*/
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@VisibleForTesting
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public static class ActivityEntry implements Comparable<ActivityEntry> {
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public final ResolveInfo info;
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public final String label;
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private final IconDrawableFactory mIconFactory;
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private final int mUserId;
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public ActivityEntry(ResolveInfo info, String label, IconDrawableFactory iconFactory) {
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this.info = info;
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this.label = label;
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mIconFactory = iconFactory;
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mUserId = UserHandle.myUserId();
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}
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@Override
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public int compareTo(ActivityEntry entry) {
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return label.compareToIgnoreCase(entry.label);
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}
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@Override
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public String toString() {
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return label;
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}
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public Drawable getIcon() {
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return mIconFactory.getBadgedIcon(
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info.activityInfo, info.activityInfo.applicationInfo, mUserId);
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}
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}
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}
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