viewpager和gridview,imageloder,解析json数组，点击不动

---------------------------主页面

package fragment.bwie.com.lianxi;import android.os.AsyncTask;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.support.v4.view.ViewPager;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.widget.GridView;import com.google.gson.Gson;import java.io.BufferedReader;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.URL;import java.util.List;import fragment.bwie.com.lianxi.adapter.GridAdapter;import fragment.bwie.com.lianxi.adapter.MyAdapter;import fragment.bwie.com.lianxi.bean.Bean;public class MainActivity extends AppCompatActivity {    private ViewPager pager;    private GridView gridView;    private List<Bean.DataBean.EssayBean> list;    private Handler handler = new Handler() {        @Override        public void handleMessage(Message msg) {            if (msg.what == 0) {                int currentItem = pager.getCurrentItem();                pager.setCurrentItem(currentItem + 1);                handler.sendEmptyMessageDelayed(0, 2000);            }        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        pager = (ViewPager) findViewById(R.id.pager);        gridView = (GridView) findViewById(R.id.gridview);        AsyncTask<Void, Void, String> asyncTask = new AsyncTask<Void, Void, String>() {            @Override            protected String doInBackground(Void... voids) {                String path = "http://v3.wufazhuce.com:8000/api/reading/index/?version=3.5.0&platform=android";                try {                    URL url = new URL(path);                    HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();                    urlConnection.setRequestMethod("GET");                    urlConnection.setConnectTimeout(5000);                    urlConnection.setReadTimeout(5000);                    int responseCode = urlConnection.getResponseCode();                    if (responseCode == 200) {                        InputStream inputStream = urlConnection.getInputStream();                        String json = streamTostring(inputStream, "utf-8");                        Log.i("----------------", json);                        return json;                    }                } catch (Exception e) {                    e.printStackTrace();                }                return null;            }            @Override            protected void onPostExecute(String s) {                super.onPostExecute(s);                Gson gson = new Gson();                Bean bean = gson.fromJson(s, Bean.class);                list = bean.getData().getEssay();                MyAdapter myAdapter = new MyAdapter(list, MainActivity.this , handler);                pager.setAdapter(myAdapter);                pager.setCurrentItem(list.size() * 10000);                //设置时间                handler.sendEmptyMessageDelayed(0, 2000);                pager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {                    @Override                    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {                    }                    @Override                    public void onPageSelected(int position) {                    }                    @Override                    public void onPageScrollStateChanged(int state) {                    }                });                Datass();            }        };        asyncTask.execute();    }    private String streamTostring(InputStream inputStream, String s) {        try {            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, s);            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);            StringBuilder builder = new StringBuilder();            String string = null;            while ((string = bufferedReader.readLine()) != null) {                builder.append(string);            }            bufferedReader.close();            return builder.toString();        } catch (Exception e) {            e.printStackTrace();        }        return null;    }    private void Datass() {        GridAdapter gridAdapter = new GridAdapter(list, MainActivity.this);        gridView.setAdapter(gridAdapter);    }}

--------------------------------------------viewpager适配器

package fragment.bwie.com.lianxi.adapter;import android.content.Context;import android.graphics.Bitmap;import android.os.Handler;import android.support.v4.view.PagerAdapter;import android.util.Log;import android.view.MotionEvent;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import com.nostra13.universalimageloader.core.DisplayImageOptions;import com.nostra13.universalimageloader.core.ImageLoader;import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;import com.nostra13.universalimageloader.core.assist.ImageScaleType;import com.nostra13.universalimageloader.core.display.FadeInBitmapDisplayer;import com.nostra13.universalimageloader.core.display.RoundedBitmapDisplayer;import java.util.List;import fragment.bwie.com.lianxi.R;import fragment.bwie.com.lianxi.bean.Bean;/** * Created by CZ on 2017/9/15. */public class MyAdapter extends PagerAdapter {    List<Bean.DataBean.EssayBean> image;    Context context;    Handler handler;    public MyAdapter(List<Bean.DataBean.EssayBean> image, Context context, Handler handler) {        this.image = image;        this.context = context;        this.handler = handler;        ImageLoader.getInstance().init(ImageLoaderConfiguration.createDefault(context));    }    @Override    public int getCount() {        return Integer.MAX_VALUE;    }    @Override    public boolean isViewFromObject(View view, Object object) {        return view == object;    }    @Override    public Object instantiateItem(ViewGroup container, int position) {        ImageView imageView = new ImageView(context);        imageView.setScaleType(ImageView.ScaleType.FIT_XY);        ImageLoader.getInstance().displayImage(image.get(position % image.size()).getAuthor().get(0).getWeb_url(), imageView, getOption());        imageView.setOnTouchListener(new View.OnTouchListener() {            @Override            public boolean onTouch(View view, MotionEvent motionEvent) {                boolean isTiaoZhuan = true;                switch (motionEvent.getAction()) {//获取动作                    case MotionEvent.ACTION_DOWN://按下                        Log.i("--", "ACTION_DOWN");                        handler.removeCallbacksAndMessages(null);                        break;                    case MotionEvent.ACTION_MOVE://移动                        Log.i("--", "ACTION_MOVE");                        isTiaoZhuan = false;                        handler.removeCallbacksAndMessages(null);                        break;                    case MotionEvent.ACTION_CANCEL://取消                        Log.i("--", "ACTION_CANCEL");                        isTiaoZhuan = false;                        handler.sendEmptyMessageDelayed(0, 2000);                        break;                    case MotionEvent.ACTION_UP://抬起                        handler.sendEmptyMessageDelayed(0, 2000);                        break;                }                //自己处理触摸事件....如果当前位置返回了true,,,点击事件将不会执行,,,表示动作自己处理,不会传递                return true;            }        });        container.addView(imageView);        return imageView;    }    private DisplayImageOptions getOption() {        DisplayImageOptions options = new DisplayImageOptions.Builder()                .showImageOnLoading(R.mipmap.ic_launcher) //设置图片在下载期间显示的图片                .showImageForEmptyUri(R.mipmap.ic_launcher)//设置图的时片Uri为空或是错误候显示的图片                .showImageOnFail(R.mipmap.ic_launcher)  //设置图片加载/解码过程中错误时候显示的图片                .cacheInMemory(true)//设置下载的图片是否缓存在内存中                .cacheOnDisk(true)//设置下载的图片是否缓存在SD卡中                .considerExifParams(true)  //是否考虑JPEG图像EXIF参数（旋转，翻转）                .imageScaleType(ImageScaleType.IN_SAMPLE_INT)//设置图片以如何的编码方式显示                .bitmapConfig(Bitmap.Config.RGB_565)//设置图片的解码类型                //.decodingOptions(BitmapFactory.Options decodingOptions)//设置图片的解码配置                .delayBeforeLoading(0)//int delayInMillis为你设置的下载前的延迟时间                //设置图片加入缓存前，对bitmap进行设置                //.preProcessor(BitmapProcessor preProcessor)                .resetViewBeforeLoading(true)//设置图片在下载前是否重置，复位                .displayer(new RoundedBitmapDisplayer(20))//不推荐用！！！！是否设置为圆角，弧度为多少                .displayer(new FadeInBitmapDisplayer(100))//是否图片加载好后渐入的动画时间，可能会出现闪动                .build();//构建完成        return options;    }    @Override    public void destroyItem(ViewGroup container, int position, Object object) {        container.removeView((View) object);    }}

----------------------------------------------gridview适配器图片优化要holder

package fragment.bwie.com.lianxi.adapter;import android.content.Context;import android.graphics.Bitmap;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;import com.nostra13.universalimageloader.core.DisplayImageOptions;import com.nostra13.universalimageloader.core.ImageLoader;import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;import com.nostra13.universalimageloader.core.assist.ImageScaleType;import com.nostra13.universalimageloader.core.display.FadeInBitmapDisplayer;import com.nostra13.universalimageloader.core.display.RoundedBitmapDisplayer;import java.util.List;import fragment.bwie.com.lianxi.R;import fragment.bwie.com.lianxi.bean.Bean;/** * Created by CZ on 2017/9/15. */public class GridAdapter extends BaseAdapter {    List<Bean.DataBean.EssayBean> list;    Context context;    public GridAdapter(List<Bean.DataBean.EssayBean> list, Context context) {        this.list = list;        this.context = context;        ImageLoader.getInstance().init(ImageLoaderConfiguration.createDefault(context));    }    @Override    public int getCount() {        return list.size();    }    @Override    public Object getItem(int i) {        return list.get(i);    }    @Override    public long getItemId(int i) {        return i;    }    @Override    public View getView(int i, View view, ViewGroup viewGroup) {        ViewHolder holder;        if (view == null) {            view = View.inflate(context, R.layout.grid_item, null);            holder = new ViewHolder();            holder.image = (ImageView) view.findViewById(R.id.image);            holder.title = (TextView) view.findViewById(R.id.title);            view.setTag(holder);        } else {            holder = (ViewHolder) view.getTag();        }        holder.title.setText(list.get(i).getAuthor().get(0).getDesc());        ImageLoader.getInstance().displayImage(list.get(i).getAuthor().get(0).getWeb_url(), holder.image, getOption());        return view;    }    private DisplayImageOptions getOption() {        DisplayImageOptions options = new DisplayImageOptions.Builder()                .showImageOnLoading(R.mipmap.ic_launcher) //设置图片在下载期间显示的图片                .showImageForEmptyUri(R.mipmap.ic_launcher)//设置图的时片Uri为空或是错误候显示的图片                .showImageOnFail(R.mipmap.ic_launcher)  //设置图片加载/解码过程中错误时候显示的图片                .cacheInMemory(true)//设置下载的图片是否缓存在内存中                .cacheOnDisk(true)//设置下载的图片是否缓存在SD卡中                .considerExifParams(true)  //是否考虑JPEG图像EXIF参数（旋转，翻转）                .imageScaleType(ImageScaleType.IN_SAMPLE_INT)//设置图片以如何的编码方式显示                .bitmapConfig(Bitmap.Config.RGB_565)//设置图片的解码类型                //.decodingOptions(BitmapFactory.Options decodingOptions)//设置图片的解码配置                .delayBeforeLoading(0)//int delayInMillis为你设置的下载前的延迟时间                //设置图片加入缓存前，对bitmap进行设置                //.preProcessor(BitmapProcessor preProcessor)                .resetViewBeforeLoading(true)//设置图片在下载前是否重置，复位                .displayer(new RoundedBitmapDisplayer(20))//不推荐用！！！！是否设置为圆角，弧度为多少                .displayer(new FadeInBitmapDisplayer(100))//是否图片加载好后渐入的动画时间，可能会出现闪动                .build();//构建完成        return options;    }    public class ViewHolder {        ImageView image;        TextView title;    }}

------------------------------------------------配置包

onstra直接输入