import android.media.AudioSystem;
import android.os.UserHandle;
import android.os.UserManager;
+import android.util.Log;
import com.android.settings.Utils;
*/
public class AudioHelper {
+ private static final String TAG = "AudioHelper";
private Context mContext;
private AudioManager mAudioManager;
}
public int getMinVolume(int stream) {
- return mAudioManager.getStreamMinVolume(stream);
+ int minVolume;
+ try {
+ minVolume = mAudioManager.getStreamMinVolume(stream);
+ } catch (IllegalArgumentException e) {
+ Log.w(TAG, "Invalid stream type " + stream);
+ // Fallback to STREAM_VOICE_CALL because CallVolumePreferenceController.java default
+ // return STREAM_VOICE_CALL in getAudioStream
+ minVolume = mAudioManager.getStreamMinVolume(AudioManager.STREAM_VOICE_CALL);
+ }
+ return minVolume;
}
}
--- /dev/null
+/*
+ * Copyright (C) 2019 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.notification;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class AudioHelperTest {
+
+ private static final int START = -10;
+ private static final int END = 10;
+ private static final int DEFAULT = -100;
+
+ private Context mContext;
+ private AudioHelper mAudioHelper;
+
+ @Before
+ public void setUp() {
+ mContext = RuntimeEnvironment.application;
+ mAudioHelper = new AudioHelper(mContext);
+ }
+
+ @Test
+ public void getMaxVolume_anyStreamType_getValue() {
+ int volume = DEFAULT;
+
+ for (int i = START; i < END; i++) {
+ volume = mAudioHelper.getMaxVolume(i);
+ assertThat(volume).isNotEqualTo(DEFAULT);
+ }
+ }
+
+ @Test
+ public void getMinVolume_anyStreamType_getValue() {
+ int volume = DEFAULT;
+
+ for (int i = START; i < END; i++) {
+ volume = mAudioHelper.getMinVolume(i);
+ assertThat(volume).isNotEqualTo(DEFAULT);
+ }
+ }
+}