Java 删除操作后如何刷新viewpager

在我的应用程序中，我使用查看寻呼机显示我的图像库

从“我的图库”中删除任何图像后，查看寻呼机应得到更新

我的活动

public class FullScreenViewActivityForSelfImage extends Activity{

@SuppressWarnings("unused")
private Utils utils;
private FullScreenImageAdapterForSelfImage adapter;
private static ViewPager viewPager;
DatabaseHelper db;
ArrayList<Image> aryimages;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_fullscreen_view);
    db=new DatabaseHelper(this);
    viewPager = (ViewPager) findViewById(R.id.pager);

     aryimages= db.getimages();

    Intent i = getIntent();
    int position = i.getIntExtra("position", 0);

    adapter = new FullScreenImageAdapterForSelfImage(FullScreenViewActivityForSelfImage.this,
            aryimages,this);

    viewPager.setAdapter(adapter);

    // displaying selected image first
    viewPager.setCurrentItem(position);
}
public static ViewPager getAdapter() {
    return viewPager;
}
}

在适配器中，我尝试刷新

public void handleResponse(String response) {

    System.out.println("handle REsponse...got result..."+response);

    if(response.equalsIgnoreCase("0"))
    {
        System.out.println("!!!!!!!!!!Server Busy try again latter!!!!!!!!!!!!!!!!");
        Toast.makeText(context.getApplicationContext(), "Server Busy try again latter", Toast.LENGTH_LONG).show();
    }

    else if(response.equalsIgnoreCase("1"))
    {

        System.out.println("!!!!!!!!!!!!Image deleted!!!!!!!!!!!!!!!!!!!");

        Toast.makeText(context.getApplicationContext(), "Image deleted", Toast.LENGTH_LONG).show();
        db.deleteImageSelected(id);

        _imagePaths.remove(i);
        ImageListAdapter.notifyDataSetChanged();

    }


  }

图像适配器

public class ImageListAdapter extends BaseAdapter {

    //private Context context;
    private ArrayList<Image> Img;
    private LayoutInflater inflater = null;

    public ImageListAdapter(Context context, ArrayList<Image> Image) {

    //  this.context = context;
        this.Img = Image;
        inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);


    }

    @Override
    public int getCount() {
        return Img.size();
    }

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

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

    @SuppressLint("InflateParams")
    @SuppressWarnings("unused")
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View view = null;
        if (convertView == null) {
            view = inflater.inflate(R.layout.imageshow, null);
        } else {
            view = convertView;
        }

        ImageView iv= (ImageView) view.findViewById(R.id.imageshowView1);
        TextView name= (TextView) view.findViewById(R.id.Imageshownametv);
        TextView id= (TextView) view.findViewById(R.id.Imageshowidtv);
        TextView desc= (TextView) view.findViewById(R.id.Imageshowimagedesc);

        id.setText(Img.get(position).Image_id);
        byte[] I= Img.get(position).image;
        System.out.println("Byte array of the image "+I);
        Bitmap bp=BitmapFactory.decodeByteArray(I, 0, I.length);

        iv.setImageBitmap(bp);

        return view;
    }

}

公共类ImageListAdapter扩展了BaseAdapter{
//私人语境；
私人ArrayList Img；
专用充气机=空；
公共ImageListAdapter（上下文，ArrayList图像）{
//this.context=上下文；
Img=图像；
充气器=（充气器）上下文
.getSystemService（上下文布局\充气机\服务）；
}
@凌驾
public int getCount（）{
返回Img.size（）；
}
@凌驾
公共对象getItem（int位置）{
返回位置；
}
@凌驾
公共长getItemId（int位置）{
返回位置；
}
@SuppressLint（“充气参数”）
@抑制警告（“未使用”）
@凌驾
公共视图getView（int位置、视图转换视图、视图组父视图）{
视图=空；
if（convertView==null）{
视图=充气机。充气（R.layout.imageshow，空）；
}否则{
视图=转换视图；
}
ImageView iv=（ImageView）view.findViewById（R.id.imageshowView1）；
TextView name=（TextView）view.findViewById（R.id.Imageshownametv）；
TextView id=（TextView）view.findViewById（R.id.Imageshowidtv）；
TextView desc=（TextView）view.findViewById（R.id.Imageshowimagedesc）；
id.setText（Img.get（position）.Image\u id）；
字节[]I=Img.get（位置）.image；
System.out.println（“图像的字节数组”+I）；
位图bp=BitmapFactory.decodeByteArray（I，0，I.length）；
iv.设置图像位图（bp）；
返回视图；
}
}

但它还没有完成

---

因此，请帮助我..

尝试调用

this.notifyDataSetChanged（）在
ImageListAdapter.notifyDataSetChanged（）之后什么是
ImageListAdapter
？它永远不会被初始化。或者至少它不在您发布的部分中。ImageListAdapter位于同一适配器类中…请参阅更新的post…初始化
公共ImageListAdapter ImageListAdapter；在FullScreenImageAdapterForSelfImage构造函数中。与ImageListAdapter一样，new ImageListAdapter（）：
@anupamaJ需要使用所选ID删除图像并刷新适配器。
public void handleResponse(String response) {

    System.out.println("handle REsponse...got result..."+response);

    if(response.equalsIgnoreCase("0"))
    {
        System.out.println("!!!!!!!!!!Server Busy try again latter!!!!!!!!!!!!!!!!");
        Toast.makeText(context.getApplicationContext(), "Server Busy try again latter", Toast.LENGTH_LONG).show();
    }

    else if(response.equalsIgnoreCase("1"))
    {

        System.out.println("!!!!!!!!!!!!Image deleted!!!!!!!!!!!!!!!!!!!");

        Toast.makeText(context.getApplicationContext(), "Image deleted", Toast.LENGTH_LONG).show();
        db.deleteImageSelected(id);

        _imagePaths.remove(i);
        ImageListAdapter.notifyDataSetChanged();

    }


  }

public class ImageListAdapter extends BaseAdapter {

    //private Context context;
    private ArrayList<Image> Img;
    private LayoutInflater inflater = null;

    public ImageListAdapter(Context context, ArrayList<Image> Image) {

    //  this.context = context;
        this.Img = Image;
        inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);


    }

    @Override
    public int getCount() {
        return Img.size();
    }

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

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

    @SuppressLint("InflateParams")
    @SuppressWarnings("unused")
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View view = null;
        if (convertView == null) {
            view = inflater.inflate(R.layout.imageshow, null);
        } else {
            view = convertView;
        }

        ImageView iv= (ImageView) view.findViewById(R.id.imageshowView1);
        TextView name= (TextView) view.findViewById(R.id.Imageshownametv);
        TextView id= (TextView) view.findViewById(R.id.Imageshowidtv);
        TextView desc= (TextView) view.findViewById(R.id.Imageshowimagedesc);

        id.setText(Img.get(position).Image_id);
        byte[] I= Img.get(position).image;
        System.out.println("Byte array of the image "+I);
        Bitmap bp=BitmapFactory.decodeByteArray(I, 0, I.length);

        iv.setImageBitmap(bp);

        return view;
    }

}