實現xlistview+xutils展示數據之後點擊item跳轉頁面顯示圖片縮放和放大

XUtils請求數據

public class MyFragment extends Fragment implements XListView.IXListViewListener {
    private XListView xListView;
    private List<InfoBean.ResultBean.DataBean> list;
    private MyBase base;
    private boolean flag;
    private int index;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.myfragment,container,false);
        return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        View view = getView();
        xListView = (XListView) view.findViewById(R.id.XLV);
        xListView.setPullLoadEnable(true);
        xListView.setXListViewListener(this);
        data();
    }
    public void data(){
        RequestParams params = new RequestParams("http://v.juhe.cn/toutiao/index");
        params.addQueryStringParameter("key","5b6258c74f4346147b12fe38490a12b2");
        params.addQueryStringParameter("type","top");
        x.http().post(params, new Callback.CommonCallback<String>() {
            @Override
            public void onSuccess(String result) {
                Gson gson = new Gson();
                InfoBean infoBean = gson.fromJson(result, InfoBean.class);
                list = infoBean.getResult().getData();
                if (base==null){
                    base = new MyBase(list,getActivity(),xListView);
                    xListView.setAdapter(base);
                }else {
                    base.add(list,flag);
                    base.notifyDataSetChanged();
                }

            }

            @Override
            public void onError(Throwable ex, boolean isOnCallback) {

            }

            @Override
            public void onCancelled(CancelledException cex) {

            }

            @Override
            public void onFinished() {

            }
        });
    }

    @Override
    public void onRefresh() {

        ++index;
        data();
        flag=true;
        xListView.stopRefresh(true);
    }

    @Override
    public void onLoadMore() {

        ++index;
        data();
        flag = false;
        xListView.stopLoadMore();
    }
}

適配器

public class MyBase extends BaseAdapter implements AdapterView.OnItemClickListener {
    ImageOptions options = new ImageOptions.Builder()
            .setLoadingDrawableId(R.mipmap.ic_launcher)
            .setUseMemCache(true)
            .setSize(200,200)
            .build();
    private List<InfoBean.ResultBean.DataBean> list;
    private Context context;
    private XListView xListView;

    public MyBase(List<InfoBean.ResultBean.DataBean> list, Context context, XListView xListView) {
        this.list = list;
        this.context = context;
        this.xListView = xListView;
    }

    public void add(List<InfoBean.ResultBean.DataBean> list1, Boolean flag){
        for (InfoBean.ResultBean.DataBean bean: list1) {
            if (flag){
                list.add(0,bean);
            }
                list.add(bean);
        }
    }

    @Override
    public int getCount() {
        return list!=null?list.size():0;
    }

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

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView==null){
            holder = new ViewHolder();
            convertView = convertView.inflate(context,R.layout.mybase,null);
            holder.text = (TextView) convertView.findViewById(R.id.text_view);
            holder.image = (ImageView) convertView.findViewById(R.id.image_view);

            convertView.setTag(holder);
        }else {
           holder = (ViewHolder) convertView.getTag();
        }
        holder.text.setText(list.get(position).getTitle());
        x.image().bind(holder.image,list.get(position).getThumbnail_pic_s(),options);
        xListView.setOnItemClickListener(this);
        return convertView;
    }

Xlistview點擊item傳圖片實現步驟
 @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        ArrayList<String> list2 = new ArrayList<String>();
        list2.add(list.get(position-1).getThumbnail_pic_s());
        list2.add(list.get(position-1).getThumbnail_pic_s02());
        list2.add(list.get(position-1).getThumbnail_pic_s03());
        Intent intent = new Intent(context,PicActivity.class);
        intent.putStringArrayListExtra("key",list2);
        context.startActivity(intent);
    }

    class ViewHolder{
        private TextView text;
        private ImageView image;
    }
}
 另一個activity接收傳過來的值

public class PicActivity extends AppCompatActivity {
    private HackyViewPager pv;
    private ArrayList<String> list;
    private ArrayList<View> arrayList = new ArrayList<View>();

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.picactivity);
        pv = (HackyViewPager) findViewById(R.id.HVP);
        Intent intent = getIntent();
        list = intent.getStringArrayListExtra("key");

        ImageOptions options = new ImageOptions.Builder()
                .setLoadingDrawableId(R.mipmap.ic_launcher)
                .setUseMemCache(true)
                .setSize(200,200)
                .build();
        PhotoView photoView1 = new PhotoView(PicActivity.this);
        x.image().bind(photoView1, list.get(0),options);
        PhotoView photoView2 = new PhotoView(PicActivity.this);
        x.image().bind(photoView2, list.get(1),options);
        PhotoView photoView3 = new PhotoView(PicActivity.this);
        x.image().bind(photoView3, list.get(2),options);

        arrayList.add(photoView1);
        arrayList.add(photoView2);
        arrayList.add(photoView3);

        MyAdapter adapter = new MyAdapter();
        pv.setAdapter(adapter);
    }
這個activity的適配器
 class MyAdapter extends PagerAdapter{

        @Override
        public int getCount() {
            return arrayList!=null?list.size():0;
        }

        @Override
        public boolean isViewFromObject(View view, Object object) {

            return view==object;
        }

        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            container.addView(arrayList.get(position));
            return arrayList.get(position);
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            container.removeView(arrayList.get(position));
        }
    }
}
這個activity的佈局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <cn.bluemobi.dylan.photoview.HackyViewPager
        android:id="@+id/HVP"
        android:layout_width="300dp"
        android:layout_height="200dp"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="135dp">
    </cn.bluemobi.dylan.photoview.HackyViewPager>
</RelativeLayout>