我有一些想要在 Android 资产管理器的帮助下加载的 wav 文件。不幸的是，每次我尝试这样做时，都会出现以下错误
java.io.FileNotFoundException：未找到音频文件.wav
我想将以下资产添加到 Android 声音池。
这是我的应用程序设置的图像。
我的代码
public class MyActivity extends AppCompatActivity {
protected abstract Fragment createFragment();
@LayoutRes
protected int getLayoutRes() {
return R.layout.activity_fragment;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutRes());
FragmentManager fm = getSupportFragmentManager();
Fragment fragment = fm.findFragmentById(R.id.fragment_container);
if (fragment == null) {
fragment = new MyActivityFragment();
fm.beginTransaction().add(R.id.fragment_container, fragment).commit();
}
}
}
分段
public class MyActivityFragment extends Fragment {
private static final String TAG = "MyFragment";
private static final String SOUNDS_FOLDER = "sample_sounds";
private static final int MAX_SOUNDS = 5;
private final AssetManager mAssetManager;
private final List<Integer> sounds = new ArrayList<>();
private SoundPool mSoundPool;
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRetainInstance(true);
this.mAssetManager = getActivity().getAssets();
this.loadAssets();
mSoundPool = this.buildSoundPool();
}
@Override
public void onDestroy() {
super.onDestroy();
mSoundPool.release();
}
private SoundPool buildSoundPool() {
SoundPool.Builder builder = new SoundPool.Builder();
builder.setMaxStreams(MAX_SOUNDS);
builder.setAudioAttributes(new AudioAttributes.Builder()
.setUsage(AudioAttributes.USAGE_MEDIA)
.setContentType(AudioAttributes.CONTENT_TYPE_MUSIC)
.build());
return builder.build();
}
private void loadAssets() {
try {
String[] soundNames = mAssetManager.list(SOUNDS_FOLDER);
for (String soundName : soundNames) {
sounds.add(load(soundName));
}
} catch (IOException ioe) {
Log.e(TAG, "Could not list assets");
}
}
private int load(String soundName) throws IOException {
AssetFileDescriptor afd = mAssetManager.openFd(soundName);
int soundId = mSoundPool.load(afd, 1);
return soundId;
}
}
此方法引发FileNotFoundException.
private int load(String soundName) throws IOException {
AssetFileDescriptor afd = mAssetManager.openFd(soundName);
int soundId = mSoundPool.load(afd, 1);
return soundId;
}
这条线正好
AssetFileDescriptor afd = mAssetManager.openFd(soundName);
我已经浏览了与此问题相关的其他帖子，但最近的帖子至少有 3 年的历史。我不知道我做错了什么。任何帮助将不胜感激。