src/com/android/server/telecom/AppLabelProxy.java

/*
 * Copyright (C) 2020 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.server.telecom;

import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.telecom.Log;

/**
 * Abstracts away dependency on the {@link PackageManager} required to fetch the label for an
 * app.
 */
public interface AppLabelProxy {
    String LOG_TAG = AppLabelProxy.class.getSimpleName();

    class Util {
        /**
         * Default impl of getAppLabel.
         * @param pm PackageManager instance
         * @param packageName package name to look up.
         */
        public static CharSequence getAppLabel(PackageManager pm, String packageName) {
            try {
                ApplicationInfo info = pm.getApplicationInfo(packageName, 0);
                CharSequence result = pm.getApplicationLabel(info);
                Log.i(LOG_TAG, "package %s: name is %s", packageName, result);
                return result;
            } catch (PackageManager.NameNotFoundException nnfe) {
                Log.w(LOG_TAG, "Could not determine app label. Package name is %s", packageName);
            }

            return null;
        }
    }

    CharSequence getAppLabel(String packageName);
}