Android 导入到现有项目后如何使用库jar

我创建了gallery应用程序，然后我想通过添加一个名为ImageVIewZoom.jar的外部库来为我的gallery中的图像添加缩放效果 通过此链接： 我只将jar文件而不是所有ImageViewZoom项目添加到我的项目中

我按以下方式添加库：

1-我的库->右键单击->导入->文件系统->ImageViewZoom.jar

2-myProject->右键单击->属性->Java构建路径->库->添加Jar->ImageViewZoom.Jar

现在jar文件已经在我的项目中了，我如何在我的gallery类中利用或使用jar类，所以我最终在运行我的应用程序时，我的图像将具有缩放效果

我是android新手，也是第一次在我的项目中使用外部库

编辑：

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我是否需要在gallery类或导入中添加一些代码，如果需要，将如何添加

这是我的gallery类，实际上它不是我的代码，但我在stackoverflow中创建了它，并使用它来形成无限画廊

  @SuppressWarnings("deprecation")
public class DayGallery extends Activity {
TextView tv;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Set the layout to use
    setContentView(R.layout.main);

    InfiniteGallery galleryOne = (InfiniteGallery) findViewById(R.id.galleryOne);
    galleryOne.setAdapter(initializeImages()); 
    galleryOne.setSelection(galleryOne.getCount()/2);  
             }           


private InfiniteGalleryAdapter initializeImages() {
    InfiniteGalleryAdapter galleryAdapter = null;

    String day = getIntent().getStringExtra("dayname");


    if(day.equalsIgnoreCase("london")){
        int[] tempimages = { R.drawable.ic_launcher, R.drawable.ic_launcher,R.drawable.ic_launcher };  
        String[] name = { " 1"," 2", " 3"};  

        galleryAdapter=new InfiniteGalleryAdapter(this, tempimages, name); }

    else if(day.equalsIgnoreCase("paris")){
        int[] tempimages = { R.drawable.ic_launcher, R.drawable.ic_launcher,R.drawable.ic_launcher };  
        String[] name = { "4","5", "6"};  

        galleryAdapter=new InfiniteGalleryAdapter(this, tempimages, name); }

    else if(day.equalsIgnoreCase("rom")){
        int[] tempimages = { R.drawable.ic_launcher, R.drawable.ic_launcher,R.drawable.ic_launcher };  
        String[] name = { "7","8", "9"};  

        galleryAdapter=new InfiniteGalleryAdapter(this, tempimages, name); }


                 }

    }

    return galleryAdapter; 
           }
          }


 class InfiniteGalleryAdapter extends BaseAdapter { 
private Context mContext;
private int[] images;   
private String[] name;
public InfiniteGalleryAdapter(Context c, int[] imageIds,String[] names) { 
    this.mContext = c; 
    images = imageIds;
    name=names;
    inflater = (LayoutInflater)mContext.getSystemService ( Context.LAYOUT_INFLATER_SERVICE); }

public int getCount() { 
    return Integer.MAX_VALUE; 
               } 

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

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

private LayoutInflater inflater=null; 


public class ViewHolder{ 
    public TextView text; 
    public ImageView image; 
                   } 


public View getView(int position, View convertView, ViewGroup parent) { 
    ImageView i = getImageView(); 

    int itemPos = (position % images.length); 

    try { i.setImageResource(images[itemPos]); ((BitmapDrawable) i.getDrawable()).setAntiAlias(true); 
              } 

    catch (OutOfMemoryError e) { Log.e("InfiniteGalleryAdapter", "Out of memory creating imageview. Using empty view.", e); 
                          } 

    View vi=convertView; 
    ViewHolder holder; 
    if(convertView==null){ 
        vi = inflater.inflate(R.layout.gallery_items, null); 
        holder=new ViewHolder(); holder.text=(TextView)vi.findViewById(R.id.textView1); 
        holder.image=(ImageView)vi.findViewById(R.id.image); 
        vi.setTag(holder); } 

    else holder=(ViewHolder)vi.getTag(); 
    holder.text.setText(name[itemPos]); 

    final int stub_id=images[itemPos]; 
    holder.image.setImageResource(stub_id); 

    return vi; 
              } 

private ImageView getImageView() { 

    ImageView i = new ImageView(mContext); 

    return i; 
         } 
            }

 @SuppressWarnings("deprecation")
 class InfiniteGallery extends Gallery {

public InfiniteGallery(Context context) {
    super(context);
    init();
               }

public InfiniteGallery(Context context, AttributeSet attrs) {
    super(context, attrs);
    init(); 
              }

public InfiniteGallery(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    init(); 
                  }

private void init(){
    // These are just to make it look pretty
    setSpacing(50);
    setHorizontalFadingEdgeEnabled(false);
             }
            }

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非常感谢您的帮助。非常感谢。是的，这是添加.jar库的正确方法。您可以像在常规java中一样使用它（假设）

在您的例子中，您的库有一个示例代码

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关于，

我是否需要在gallery类或导入中添加一些代码，如果需要，将如何添加。谢谢

ABCD a = new ABCD();
a.method();