android - react native 系统声音/铃声

Question

我如何在 React Native 中获取系统铃声列表，例如铃声、通知铃声，以便我可以让用户选择将它们设置为通知铃声？

我查看了一些库，如 react-native-ringtone-manager 和 react-native-sound 但没有找到此功能。

Answer 1

我肯定迟到了，这是我在 medium 上写的解决方案:

Implement Native Module

转到:D:\Projects\VSCode\liturgikMobile\node_modules\react-native-ringtone-manager\android\src\main\java\com\reactlibrary\RNRingtoneManagerModule.java

并使用此代码进行更正:

@ReactMethod
public void getRingtones(Callback successCallback) {
    getRingsByType(RingtoneManager.TYPE_ALL, successCallback);
}

@ReactMethod
public void getRingsByType(int ringtoneType, Callback successCallback) {
    RingtoneManager manager = new RingtoneManager(this.reactContext);
    manager.setType(ringtoneType);
    Cursor cursor = manager.getCursor();

    WritableArray result = Arguments.createArray();
    int key= 0;
    while (cursor.moveToNext()) { 
        WritableMap data = Arguments.createMap();
        String notificationTitle = cursor.getString(RingtoneManager.TITLE_COLUMN_INDEX);
        Uri notificationUri = Uri.parse(cursor.getString(RingtoneManager.URI_COLUMN_INDEX) + "/"
                + cursor.getString(RingtoneManager.ID_COLUMN_INDEX));
        String notification = getPathFromUri(this.reactContext, notificationUri);
        data.putInt("key", key);
        data.putString("title", notificationTitle);
        data.putString("uri", notification);
        result.pushMap(data);
        key=key+1;
    }
    successCallback.invoke(result);
}

@SuppressLint("NewApi")
public String getPathFromUri(Context context, Uri uri) {
    final boolean needToCheckUri = Build.VERSION.SDK_INT >= 19;
    String selection = null;
    String[] selectionArgs = null;
    // Uri is different in versions after KITKAT (Android 4.4), we need to
    // deal with different Uris.
    if (needToCheckUri && DocumentsContract.isDocumentUri(context.getApplicationContext(), uri)) {
        if (isExternalStorageDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            return Environment.getExternalStorageDirectory() + "/" + split[1];
        } else if (isDownloadsDocument(uri)) {
            final String id = DocumentsContract.getDocumentId(uri);
            uri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
        } else if (isMediaDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];
            if ("image".equals(type)) {
                uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
            } else if ("video".equals(type)) {
                uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
            } else if ("audio".equals(type)) {
                uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
            }
            selection = "_id=?";
            selectionArgs = new String[] { split[1] };
        }
    }
    if ("content".equalsIgnoreCase(uri.getScheme())) {
        String[] projection = { MediaStore.Images.Media.DATA };
        Cursor cursor = null;
        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
            if (cursor.moveToFirst()) {
                return cursor.getString(column_index);
            }
        } catch (Exception e) {
        }
    } else if ("file".equalsIgnoreCase(uri.getScheme())) {
        return uri.getPath();
    }
    return null;
}

在您的应用中，这样调用它:

getRingtones(type) {  
 RingtoneManager.getRingsByType(type, (data) => {  
   this.setState({ selectedType: type, datas: data });

});

类型 是 RingtoneManager.TYPE_NOTIFICATION、RingtoneManager.TYPE_ALARM、RingtoneManager.TYPE_RINGTONE 或 RingtoneManager.TYPE_ALL。

然后您就可以在手机上找到铃声了: