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