62 lines
1.9 KiB
Java
62 lines
1.9 KiB
Java
/*
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* Copyright (C) 2017 Schürmann & Breitmoser GbR
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui.util;
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import java.util.HashMap;
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import android.content.Context;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageManager;
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import android.graphics.drawable.Drawable;
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public class PackageIconGetter {
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private final PackageManager packageManager;
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private final HashMap<String, Drawable> appIconCache = new HashMap<>();
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public static PackageIconGetter getInstance(Context context) {
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PackageManager pm = context.getPackageManager();
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return new PackageIconGetter(pm);
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}
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private PackageIconGetter(PackageManager packageManager) {
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this.packageManager = packageManager;
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}
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public Drawable getDrawableForPackageName(String packageName) {
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if (appIconCache.containsKey(packageName)) {
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return appIconCache.get(packageName);
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}
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try {
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ApplicationInfo ai = packageManager.getApplicationInfo(packageName, 0);
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Drawable appIcon = packageManager.getApplicationIcon(ai);
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appIconCache.put(packageName, appIcon);
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return appIcon;
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} catch (PackageManager.NameNotFoundException e) {
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return null;
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}
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}
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}
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