갤러리 스크롤링이 부드럽지 않고 태블릿에서 스크롤하는 동안 흔들리는 일종입니다.

Question

이미지를 갤러리보기로로드하고 이미지를 스크롤하는 동안 흔들리는 일이 있거나 붙어있는 것처럼 보입니다. 부드러운 스크롤 갤러리가 있습니다. 이것은 10.1 Samsung Galaxy 태블릿에서 스크롤 할 때만 발생합니다. 이 문제를 해결하도록 도와주세요.

내가

@Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     final int pos = position; 
     View retval = LayoutInflater.from(parent.getContext()).inflate(
       R.layout.horrizontallistitem, null); 
     final ImageView imgitem = (ImageView) retval 
       .findViewById(R.id.hlvItem); 
     try { 
      imgitem.setImageBitmap(CommonKeys 
        .getBitmapFromAsset("_images/" + dataObjects[pos] 
          + ".png")); 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 

     } 
     return retval; 
    } 

Answer 1

공용 클래스 LazyAdapter가 BaseAdapter를 확장하는 아래의 코드를 사용 {

private Activity activity; 
private String[] data; 
private static LayoutInflater inflater=null; 
public ImageLoader imageLoader; 

public LazyAdapter(Activity a, String[] d) { 
    activity = a; 
    data=d; 
    inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    imageLoader=new ImageLoader(activity.getApplicationContext()); 
} 

public int getCount() { 
    return data.length; 
} 

public Object getItem(int position) { 
    return position; 
} 

public long getItemId(int position) { 
    return position; 
} 

public View getView(int position, View convertView, ViewGroup parent) { 

    final int pos = position; 
    final ImageView imgitem=null; 
    View retval = convertView; 
    if(retval==null) 
    { 
      retval = LayoutInflater.from(parent.getContext()).inflate(
         R.layout.horrizontallistitem, null); 
      imgitem = (ImageView) retval 
         .findViewById(R.id.hlvItem); 
    } 
    imageLoader.DisplayImage(dataObjects[position], imgitem); 
    return retVal; 
} 

는 아래 링크로 게으른 어댑터 implmentation 참조 :이 FileCache에서 https://github.com/thest1/LazyList/tree/master/src/com/fedorvlasov/lazylist

, UrlConnection 코드는 당신에게 유용하지 않습니다. 나머지 코드는 타겟을 달성 할 수 있습니다.

Answer 2

Create Image View at run time and add to Gallery.Your Activity Should implements 
ViewFactory  

private class ImageAdapter extends BaseAdapter{ 
    Context mContext; 
    private int itemBackground; 

    //private LayoutInflater layoutInflater; 
    public ImageAdapter(Context c){ 
     mContext = c; 
     //tempBitmap.clear(); 
     //tempBitmap=hashMap.get("page"+pageCount); 
     tempbitmap=new ArrayList<Bitmap>(); 
     tempbitmap.clear(); 
     int end=pageCount*5; 
     int start=end-5; 
     tempbitmap=bitmapArray.subList(start, end); 
     TypedArray attr = obtainStyledAttributes(R.styleable.HelloGallery); 
     itemBackground = attr.getResourceId(
       R.styleable.HelloGallery_android_galleryItemBackground, 0); 
     attr.recycle();  
     //layoutInflater = LayoutInflater.from(c); 
    } 

     @Override 
     public int getCount() { 
      // TODO Auto-generated method stub 
      return tempbitmap.size(); 
     } 

     @Override 
     public View getView(int position, View convertView, ViewGroup arg2) { 
      // TODO Auto-generated method stub 

      ImageView imageView; 
      if (convertView == null) { // if it's not recycled, initialize some attributes 
       imageView = new ImageView(mContext); 
       imageView.setLayoutParams(new Gallery.LayoutParams(170,grid_main.getHeight())); 
       imageView.setScaleType(ImageView.ScaleType.FIT_XY); 
       imageView.setBackgroundResource(itemBackground); 

       //imageView.setPadding(8,8,8,8); 
      } else { 
       imageView = (ImageView) convertView; 
      } 
      imageView.setImageBitmap(tempbitmap.get(position)); 
      return imageView; 
     } 

     @Override 
     public Object getItem(int position) { 
      // TODO Auto-generated method stub 
      return null; 
     } 

     @Override 
     public long getItemId(int position) { 
      // TODO Auto-generated method stub 
      return 0; 

     } 

     } 


    @Override 
    public View makeView() { 
     // TODO Auto-generated method stub 
     ImageView imageView = new ImageView(this); 
     imageView.setScaleType(ImageView.ScaleType.FIT_CENTER); 
     imageView.setLayoutParams(new 
       ImageSwitcher.LayoutParams(
         LayoutParams.FILL_PARENT, 
         LayoutParams.FILL_PARENT)); 
     imageView.setBackgroundColor(0xFF000000); 
     return imageView; 
    }