Android ScrollView嵌套ListView嵌套GridView的上下拉以及加载更多

ScrollView 效果

ScrollView 说明

一个ScrollView 嵌套ListView 嵌套GridView的上拉加载更多，下拉刷新的demo。

主要是重写了GridView和LsitView中的onMeasure 方法。

写的比较简单，希望对初学者有帮助。

[java] view
plaincopy

/***

* 主要思路是

* ScrollView 嵌套ListView 嵌套GridView的上拉加载更多，下拉刷新。

*

* 逻辑在适配器做了处理

*

* 我们只让ListView加载2个数据Item，第一个是item对象，第二个是一个对象

*

*/

public class MainActivity extends Activity implements OnHeaderRefreshListener,

OnFooterRefreshListener {

MyAdapter myAdapter;

// 自定义的GridView的上下拉动刷新

private PullToRefreshView mPullToRefreshView;

private MyListView listView;

private List<Integer> data;

private List<Integer> gridViewData;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

mPullToRefreshView = (com.example.demo.PullToRefreshView) findViewById(R.id.main_pull_refresh_view);

listView = (MyListView) findViewById(R.id.gridView1);

myAdapter = new MyAdapter(this);

data = new ArrayList<Integer>();

gridViewData = new ArrayList<Integer>();

for (int i = 0; i < 2; i++) {

data.add(i);

}

for (int i = 0; i < 12; i++) {

if (i % 2 == 0) {

gridViewData.add(R.drawable.pic1);

} else {

gridViewData.add(R.drawable.pic2);

}

}

myAdapter.setData(data);

myAdapter.setGridViewData(gridViewData);

listView.setAdapter(myAdapter);

mPullToRefreshView.setOnHeaderRefreshListener(this);

mPullToRefreshView.setOnFooterRefreshListener(this);

mPullToRefreshView.setLastUpdated(new Date().toLocaleString());

}

@Override

public void onHeaderRefresh(PullToRefreshView view) {

mPullToRefreshView.postDelayed(new Runnable() {

@Override

public void run() {

mPullToRefreshView.onHeaderRefreshComplete("更新于:"

+ Calendar.getInstance().getTime().toLocaleString());

mPullToRefreshView.onHeaderRefreshComplete();

Toast.makeText(MainActivity.this, "数据刷新完成!", 0).show();

}

}, 3000);

}

@Override

public void onFooterRefresh(PullToRefreshView view) {

mPullToRefreshView.postDelayed(new Runnable() {

@Override

public void run() {

mPullToRefreshView.onFooterRefreshComplete();

gridViewData.add(R.drawable.pic1);

myAdapter.setGridViewData(gridViewData);

Toast.makeText(MainActivity.this, "加载更多数据!", 0).show();

}

}, 3000);

}

/**

*

* lsitView的适配器

*

* @author lyy

*

*/

public class MyAdapter extends BaseAdapter {

Context context;

private List<Integer> data;

/***

* listview item position==2

*

* GridView里面的数据

*

*/

private List<Integer> gridViewData;

private GridViewAdapter gridViewAdapter;

/** ListView 的数据 **/

public void setData(List<Integer> data) {

this.data = data;

this.notifyDataSetChanged();

}

/*** gridView的数据 **/

public void setGridViewData(List<Integer> gridViewData) {

this.gridViewData = gridViewData;

this.notifyDataSetChanged();

}

public MyAdapter(Context context) {

this.context = context;

}

@Override

public int getCount() {

// TODO Auto-generated method stub

return 2;

}

@Override

public Object getItem(int position) {

// TODO Auto-generated method stub

return data.get(position);

}

@Override

public long getItemId(int position) {

// TODO Auto-generated method stub

return position;

}

@Override

public View getView(int position, View convertView, ViewGroup parent) {

if (position == 0) {

return listView();

} else {

return gridView();

}

}

public View listView() {

View view = null;

if (view == null) {

view = LayoutInflater.from(context).inflate(R.layout.item, null);

}

ImageView imageView1 = (ImageView) view.findViewById(R.id.imageView1);

return view;

}

public View gridView() {

View view = LayoutInflater.from(context).inflate(R.layout.item1, null);

GridView myGridView = (GridView) view.findViewById(R.id.gridView1);

if (gridViewAdapter == null)

gridViewAdapter = new GridViewAdapter(context);

gridViewAdapter.setData(gridViewData);

myGridView.setAdapter(gridViewAdapter);

myGridView.setOnItemClickListener(onItemClickListener);

return view;

}

private OnItemClickListener onItemClickListener = new OnItemClickListener() {

@Override

public void onItemClick(AdapterView<?> arg0, View arg1, int position,

long arg3) {

Toast.makeText(context, "你点击的是：" + position, 0).show();

}

};

}

ScrollView下载

http://yunpan.cn/cAF8SgMWUAXrP 提取码 917c

原文链接：ScrollView嵌套ListView嵌套GridView的上下拉以及加载更多，转发请注明来源！

备份下载地址：http://download.csdn.net/detail/jdsjlzx/9290193