【安卓-自定义布局】安卓App开发思路 一步一个脚印（六）实现ViewPager最基本的

实现自定义布局ViewPager最基本的

布局

<android.support.v4.view.ViewPager
android:id="@+id/vp_buy"
android:background="#00FF00"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.v4.view.ViewPager>

适配器

import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

import java.util.ArrayList;

/**
* Created by Administrator on 2016/10/3 0003.
*/
public class MyBuyPagerAdapter extends PagerAdapter {

private int mPagerImg[]=new int[]{R.mipmap.v11,R.mipmap.v12,R.mipmap.v13,R.mipmap.v14,R.mipmap.v9,R.mipmap.v10,R.mipmap.v8,R.mipmap.v7,R.mipmap.v1, R.mipmap.v2, R.mipmap.v3, R.mipmap.v4, R.mipmap.v5, R.mipmap.v6};

private Context context;
private ArrayList<View> marrayList;
//构造方法实现数据的适配器
public MyBuyPagerAdapter(Context context){
this.context = context;

marrayList=new ArrayList<View>();

LayoutInflater mLayoutInflater = LayoutInflater.from(context);
for(int id:mPagerImg){
View mView = mLayoutInflater.inflate(R.layout.item_pager_buy, null);
ImageView imageView = (ImageView) mView.findViewById(R.id.iv_pager_image);
imageView.setImageDrawable(context.getResources().getDrawable(id));

marrayList.add(mView);
}

}

@Override
public int getCount() {
return mPagerImg.length;
}

@Override
public boolean isViewFromObject(View view, Object object) {
return view==object;
}

@Override
public void destroyItem(ViewGroup container, int position, Object object) {
//        super.destroyItem(container, position, object);
container.removeView(marrayList.get(position));
}

@Override
public Object instantiateItem(ViewGroup container, int position) {
//        return super.instantiateItem(container, position);
container.addView(marrayList.get(position), 0);
return marrayList.get(position);
}
}

调用

mviewpager.setAdapter(new MyBuyPagerAdapter(getActivity()));