Android开发基于ViewPager+GridView实现仿大众点评横向滑动功能

package mm.shandong.com.testviewpagergrid;import android.content.res.TypedArray;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.GridView;import android.widget.ImageView;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.TextView;import android.widget.Toast;import java.util.ArrayList;import java.util.List;import mm.shandong.com.testviewpagergrid.entity.Catogray;public class TestViewpagerGridActivity extends AppCompatActivity {ViewPager viewPagerHomeFragment;List<Catogray> catogarys;String[] catogary_names;int[] catogary_resourceIds;LayoutInflater layoutInflater;List<View> gridViews;RadioGroup radioGroup_index_fragment;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_test_viewpager_grid);catogary_names = getResources().getStringArray(R.array.catogary_names);TypedArray typedArray = getResources().obtainTypedArray(R.array.catogary_resourceIds);catogary_resourceIds = new int[typedArray.length()];for (int i = 0; i < typedArray.length(); i++) {catogary_resourceIds[i] = typedArray.getResourceId(i, 0);}catogarys = new ArrayList<Catogray>();viewPagerHomeFragment = (ViewPager) findViewById(R.id.viewPagerHomeFragment);layoutInflater = getLayoutInflater();radioGroup_index_fragment =(RadioGroup) findViewById(R.id.radioGroup_index_fragment);for (int i = 0; i < catogary_names.length; i++) {Catogray catogary = new Catogray();catogary.setName(catogary_names[i]);catogary.setImage_source(catogary_resourceIds[i]);catogarys.add(catogary);}initViewPager();}public void initViewPager() {gridViews = new ArrayList<View>();///定义第一个GridViewGridView gridView1 =(GridView) layoutInflater.inflate(R.layout.grid_fragment_home, null);MyGridViewAdapter myGridViewAdapter1 = new MyGridViewAdapter(0, 8);gridView1.setAdapter(myGridViewAdapter1);///定义第二个GridViewGridView gridView2 = (GridView)layoutInflater.inflate(R.layout.grid_fragment_home, null);MyGridViewAdapter myGridViewAdapter2 = new MyGridViewAdapter(1, 8);gridView2.setAdapter(myGridViewAdapter2);///定义第三个GridViewGridView gridView3 = (GridView)layoutInflater.inflate(R.layout.grid_fragment_home, null);MyGridViewAdapter myGridViewAdapter3 = new MyGridViewAdapter(2, 8);gridView3.setAdapter(myGridViewAdapter3);gridViews.add(gridView1);gridViews.add(gridView2);gridViews.add(gridView3);///定义viewpager的PagerAdapterviewPagerHomeFragment.setAdapter(new PagerAdapter() {@Overridepublic boolean isViewFromObject(View arg0, Object arg1) {// TODO Auto-generated method stubreturn arg0 == arg1;}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn gridViews.size();}@Overridepublic void destroyItem(ViewGroup container, int position,Object object) {// TODO Auto-generated method stubcontainer.removeView(gridViews.get(position));//super.destroyItem(container, position, object);}@Overridepublic Object instantiateItem(ViewGroup container, int position) {// TODO Auto-generated method stubcontainer.addView(gridViews.get(position));return gridViews.get(position);}});///注册viewPager页选择变化时的响应事件viewPagerHomeFragment.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {@Overridepublic void onPageScrollStateChanged(int position) {// TODO Auto-generated method stub}@Overridepublic void onPageScrolled(int arg0, float arg1, int arg2) {// TODO Auto-generated method stub}@Overridepublic void onPageSelected(int position) {// TODO Auto-generated method stubRadioButton radioButton = (RadioButton)radioGroup_index_fragment.getChildAt(position);radioButton.setChecked(true);}});}///定影GridView的Adapterpublic class MyGridViewAdapter extends BaseAdapter {private int page;private int count;public MyGridViewAdapter(int page, int count) {this.page = page;this.count = count;}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn 8;}@Overridepublic Catogray getItem(int position) {// TODO Auto-generated method stubreturn catogarys.get(page * count + position);}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn 0;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {// TODO Auto-generated method stubViewHolder viewHolder = null;final Catogray catogary = catogarys.get(page * count + position);if (convertView == null) {viewHolder = new ViewHolder();convertView = layoutInflater.inflate(R.layout.grid_fragment_home_item, null);viewHolder.grid_fragment_home_item_img =(ImageView) convertView.findViewById(R.id.grid_fragment_home_item_img);viewHolder.grid_fragment_home_item_txt =(TextView) convertView.findViewById(R.id.grid_fragment_home_item_txt);convertView.setTag(viewHolder);} else {viewHolder = (ViewHolder) convertView.getTag();}viewHolder.grid_fragment_home_item_img.setImageResource(catogary.getImage_source());viewHolder.grid_fragment_home_item_txt.setText(catogary.getName());viewHolder.grid_fragment_home_item_img.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {// TODO Auto-generated method stubToast.makeText(TestViewpagerGridActivity.this,catogary.getName(), Toast.LENGTH_SHORT).show();}});return convertView;}}public class ViewHolder {public ImageView grid_fragment_home_item_img;public TextView grid_fragment_home_item_txt;}}