实例介绍
【实例简介】
【实例截图】
【核心代码】
package com.example.gridviewactivity; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.concurrent.atomic.AtomicInteger; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.util.DisplayMetrics; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.view.ViewGroup.LayoutParams; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.Toast; public class MainActivity extends Activity { private LinearLayout linear01; private LinearLayout linear02; private List<Map<String, Object>> listView; private int next = 0; private ViewPager adViewPager; private AdPageAdapter adapter; private ImageView[] imageViews; private ImageView imageView; private AtomicInteger atomicInteger = new AtomicInteger(0); private boolean isContinue = true; private List<View> gridViewlist = new ArrayList<View>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); } private void initView() { linear01 = (LinearLayout) findViewById(R.id.view_pager_content); linear02 = (LinearLayout) findViewById(R.id.viewGroup); listView = new ArrayList<Map<String, Object>>(); // 创建ViewPager adViewPager = new ViewPager(this); DisplayMetrics dm = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(dm); // 设置属性 adViewPager.setLayoutParams(new LayoutParams(dm.widthPixels, dm.heightPixels)); linear01.addView(adViewPager); getView(); initCirclePoint(); // 将GridView添加到ViewPager显示 adViewPager.setAdapter(adapter); adViewPager.setOnPageChangeListener(new AdPageChangeListener()); for (int i = 0; i < gridViewlist.size(); i ) { GridView view = (GridView) gridViewlist.get(i); view.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Map<String, Object> item = (Map<String, Object>) parent.getItemAtPosition(position); Toast.makeText(getApplicationContext(), item.get("image").toString(), 0).show(); } }); } } private final class AdPageChangeListener implements OnPageChangeListener { @Override public void onPageScrollStateChanged(int arg0) { } @Override public void onPageScrolled(int arg0, float arg1, int arg2) { } @Override public void onPageSelected(int arg0) { atomicInteger.getAndSet(arg0); for (int i = 0; i < imageViews.length; i ) { imageViews[arg0].setBackgroundResource(R.drawable.point_focused); if (arg0 != i) { imageViews[i].setBackgroundResource(R.drawable.point_unfocused); } } } } private void initCirclePoint() { System.out.println("initCirclePoint()"); imageViews = new ImageView[gridViewlist.size()]; for (int i = 0; i < gridViewlist.size(); i ) { imageView = new ImageView(this); LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.FILL_PARENT); layoutParams.setMargins(10, 0, 10, 0); imageView.setLayoutParams(layoutParams); imageViews[i] = imageView; if (i == 0) { imageViews[i].setBackgroundResource(R.drawable.point_focused); } else { imageViews[i].setBackgroundResource(R.drawable.point_unfocused); } linear02.addView(imageViews[i]); } } private void getView() { int[] intView = { R.drawable.one, R.drawable.two, R.drawable.three, R.drawable.four, R.drawable.five, R.drawable.six, R.drawable.seven, R.drawable.eight, R.drawable.nine, R.drawable.ten, R.drawable.eleven, R.drawable.twelve, R.drawable.thirteen, R.drawable.fourteen, R.drawable.fifteen, R.drawable.sixteen, R.drawable.seventeen, R.drawable.sixteen, R.drawable.seventeen, R.drawable.sixteen, R.drawable.seventeen, R.drawable.sixteen, R.drawable.seventeen, R.drawable.sixteen, R.drawable.seventeen, R.drawable.sixteen, R.drawable.seventeen, R.drawable.sixteen, R.drawable.seventeen, R.drawable.sixteen, R.drawable.seventeen, R.drawable.seven, R.drawable.eight, R.drawable.seven, R.drawable.eight, R.drawable.seven, R.drawable.eight }; for (int i = 0; i < intView.length; i ) { Map<String, Object> mapView = new HashMap<String, Object>(); mapView.put("image", intView[i]); listView.add(mapView); } getGridView(); } private void getGridView() { System.out.println("getGridView" listView.size()); boolean bool = true; while (bool) { int result = next 10; System.out.println("result" result); if (listView.size() != 0 && result < listView.size()) { System.out.println("result kkkkkkkkkk" result); GridView gridView = new GridView(this); gridView.setNumColumns(5); List<Map<String, Object>> gridlist = new ArrayList<Map<String, Object>>(); for (int i = next; i < result; i ) { gridlist.add(listView.get(i)); } MyAdapter myAdapter = new MyAdapter(gridlist); gridView.setAdapter(myAdapter); next = result; gridViewlist.add(gridView); } else if (result - listView.size() <= 10) { List<Map<String, Object>> gridlist = new ArrayList<Map<String, Object>>(); for (int i = next; i < listView.size(); i ) { gridlist.add(listView.get(i)); } GridView gridView = new GridView(this); gridView.setNumColumns(5); MyAdapter myAdapter = new MyAdapter(gridlist); gridView.setAdapter(myAdapter); next = listView.size() - 1; gridViewlist.add(gridView); bool = false; } else { bool = false; } } adapter = new AdPageAdapter(gridViewlist); } private final class AdPageAdapter extends PagerAdapter { private List<View> views = null; public AdPageAdapter(List<View> views) { this.views = views; } @Override public void destroyItem(View container, int position, Object object) { ((ViewPager) container).removeView(views.get(position)); } @Override public int getCount() { return views.size(); } @Override public Object instantiateItem(View container, final int position) { ((ViewPager) container).addView(views.get(position), 0); return views.get(position); } @Override public boolean isViewFromObject(View view, Object object) { return view == object; } } private class MyAdapter extends BaseAdapter { List<Map<String, Object>> listgrid; private MyAdapter(List<Map<String, Object>> listgrid) { this.listgrid = listgrid; } @Override public int getCount() { return listgrid.size(); } @Override public Object getItem(int position) { return listgrid.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { convertView = getLayoutInflater().inflate(R.layout.grid_view_item, null); ImageView getViewLinear = (ImageView) convertView.findViewById(R.id.getViewLinear); getViewLinear.setBackgroundResource(Integer.parseInt(listgrid.get(position).get("image").toString())); return convertView; } } }
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