MyViewPagerAdapter2.java
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package com.cnlive.goldenline.ui.adapter;
import android.content.Context;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.support.v4.view.PagerAdapter;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.GridView;
import com.cnlive.goldenline.R;
import com.cnlive.goldenline.model.GiftItem;
import com.cnlive.goldenline.util.LogUtils;
import java.util.ArrayList;
import java.util.List;
/**
* Created by zhangxutong on 2016/2/16.
*/
public class MyViewPagerAdapter2 extends PagerAdapter {
private List<GridView> mViewList;
private int PAGE_SIZE = 8;
private List<GiftItem> list;
private Context mContext;
private int key;
public MyViewPagerAdapter2(Context context) {
this.mContext = context;
}
public MyViewPagerAdapter2(Context context, int key) {
this.mContext = context;
this.key = key;
}
private static final String TAG = "MyViewPagerAdapter2";
public void setGritItems(List<GiftItem> list, int PAGE_SIZE) {
this.PAGE_SIZE = PAGE_SIZE;
this.list = list;
LogUtils.LOGE("setGritItems list = " + list);
try {
if (mViewList == null) mViewList = new ArrayList<>();
if (mViewList.size() > 0) mViewList.clear();
if (list != null && list.size() > 0) {
int PageCount = list.size() / PAGE_SIZE;
if (list.size() % PAGE_SIZE != 0) {
PageCount += 1;
}
Log.e(TAG, "setGritItems PAGECOUNT = " + PageCount);
for (int i = 0; i < PageCount; i++) {
GridView gridView = new GridView(mContext);
GiftGridAdapter adapter = new GiftGridAdapter(mContext, key);
gridView.setBackgroundColor(mContext.getResources().getColor(R.color.gridview_back));
if (giftClick != null)
adapter.setGiftClick(giftClick);
gridView.setAdapter(adapter);
adapter.setData(generateData(i));
// if (key ==1)
// {
// gridView.setNumColumns(8);
// }else{
gridView.setNumColumns(4);
// }
gridView.setChoiceMode(GridView.CHOICE_MODE_SINGLE);
gridView.setVerticalSpacing(1);
gridView.setHorizontalSpacing(1);
gridView.setPadding(3, 0, 3, 0);
gridView.setSelector(new ColorDrawable(Color.TRANSPARENT));
// gridView.setOnItemClickListener(adapter);
mViewList.add(gridView);
}
notifyDataSetChanged();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private GiftClick giftClick;
public interface GiftClick {
void onGiftClick(View v, int pos, GiftItem item);
}
public void setGiftClick(GiftClick giftClick) {
this.giftClick = giftClick;
}
public List<GiftItem> generateData(int page) {
List<GiftItem> mList = new ArrayList<GiftItem>();
int k = page * PAGE_SIZE;// 当前页的起始位置
int iEnd = k + PAGE_SIZE;// 所有数据的结束位置
while ((k < list.size()) && (k < iEnd)) {
mList.add(list.get(k));
k++;
}
Log.e(TAG, "generateData: page = " + page + " data " + mList);
return mList;
}
public void setData(List<GridView> mViewList) {
this.mViewList = mViewList;
notifyDataSetChanged();
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView(mViewList.get(position));
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
container.addView(mViewList.get(position));
return (mViewList.get(position));
}
@Override
public int getCount() {
if (mViewList == null)
return 0;
return mViewList.size();
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
}