错误的图像来自

Question

我有 GridView 图片来自 drawable。当我单击任何图像时，它总是打开数组中的第一个元素，而不是某些被单击的元素。我的代码有什么问题？你有什么想法吗？谢谢！当我点击任何图片时发生了什么：

  private GridView.OnItemClickListener gridviewOnItemClickListener = new GridView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View v, int position,
                            long id) {
        // TODO Auto-generated method stub
        Intent i = new Intent(getApplicationContext(),
                FullImageActivity.class);
        i.putExtra("id", position);
        startActivity(i);       
    }
};

There is my FullImageActivity

public class FullImageActivity extends AppCompatActivity {

    ImageView imageView;
    ViewPager viewPager;
    SlideImageAdapter adapter;
    MainActivity mainActivity;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.full_image);
       getMyIntent();   
    }

    private void getMyIntent(){       
        Intent intent = getIntent();   
        int position = intent.getExtras().getInt("id");
        viewPager = (ViewPager) findViewById(R.id.myViewPager);
        adapter = new SlideImageAdapter(this, position);
        viewPager.setAdapter(adapter);
    }

There is my SlideImageAdapter

public class SlideImageAdapter extends PagerAdapter {

    private Context mContext;
    private LayoutInflater layoutInflater;
    int number;

    public SlideImageAdapter(Context mContext, int number){

        this.mContext = mContext;
        this.number = number;
    }

    @Override
    public int getCount() {
        return MainActivity.mThumbIds.length;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return (view==(LinearLayout)object);
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {


        layoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View item_view =  layoutInflater.inflate(R.layout.swipe_layout, container, false);
        ImageView imageView = (ImageView) item_view.findViewById(R.id.full_image_view);

            imageView.setImageResource(MainActivity.mThumbIds[position]);

        container.addView(item_view);


        return item_view;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {

        container.removeView((LinearLayout)object);
    }
}

Answer 1

通话：

 viewPager.setCurrentItem(position);

之后：

 viewPager.setAdapter(adapter);

您正在获取位置并将其发送到适配器，但您并未使用它。设置适配器后，您可以手动设置位置。

错误的图像来自

Wrong image from

android

android-adapter