负载专辑封面到滑翔使用列表视图

Question

• 代码加载专辑封面

  if(cursor != null && cursor.moveToFirst()){ 
  
       int titleColumn = cursor.getColumnIndex(MediaStore.Audio.Media.TITLE); 
       int idColumn = cursor.getColumnIndex(MediaStore.Audio.Media._ID); 
       int artistColumn = cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST); 
       int albumColumn = cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM); 
       long albumID = cursor.getColumnIndex(MediaStore.Audio.Albums.ALBUM_ID); 
  
       do { 
        long thisID = cursor.getLong(idColumn); 
  
        String thisTitle = cursor.getString(titleColumn); 
        String thisArtist = cursor.getString(artistColumn); 
        String thisAlbum = cursor.getString(albumColumn); 
  
        Glide.with(this) 
          .load(albumID) 
          .asBitmap() 
          .into() //How do I return a value? 
  
        medialist.add(new SongInfo(thisID, thisTitle, thisArtist, thisAlbum, //Bitmap variable)); 
       } 
       while (cursor.moveToNext()); 
  

我想要的专辑封面装入使用滑翔列表视图。但是，我在遇到麻烦;

medialist.add（新SongInfo（..）;

Answer 1

你做错了： 使用这样的：

medialist.add(new SongInfo(thisID, thisTitle, thisArtist, thisAlbum,albumID)); 

现在，在您的列表视图适配器类，得到medialist中和在滑行方法中： 定义：

Context con; 

现在在适配器的构造：

public CustomAdapter(List<Medialist> items, Context context) { 
     medialist= items; 
     this.con = context; 
    } 

Glide.with(con) 
        .load(medialist.getAlbumID) 
        .asBitmap() 
        .into(imageview)