Android ScrollView与ListView,GridView共存冲突解决方案

我们在真实项目中通常会遇到ListView或者GridView嵌套在ScrollView中问题。但是做的时候会发现，一旦两者进行嵌套，即会发生冲突。得不到我们希望的效果。由于ListView和GridView本身都继承于ScrollView，一旦在ScrollView中嵌套ScrollView，那么里面的ScrollView高度计算就会出现问题。我们也就无法得到想要的效果。下面进入正题，我们将分别讨论ScrollView中嵌套ListView和FGridView的情况：

核心解决方案：重写ListView或者GridView的OnMesure 方法：

[java]
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    // TODO Auto-generated method stub
    int expandSpec = MeasureSpec.makeMeasureSpec(
               Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);

    super.onMeasure(widthMeasureSpec, expandSpec);
}

一、ScrollView中嵌套ListView

BlogScrollViewActivity.java代码：

[java]
package com.csdn.blog.scrollview;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.ScrollView;
import android.widget.LinearLayout.LayoutParams;
import android.widget.TextView;

public class BlogScrollViewActivity extends Activity {
    /** Called when the activity is first created. */
// MyGridView grid;
    ImageView image;
    ScrollView scroll;
    String[] texts=new String[]{"无线","通话设置","声音","显示","位置",
                                "应用","账户","隐私权","存储","语言","游戏","娱乐","电影","音乐",
                                "辅助功能","日期"};
/* ArrayAdapter<String> adapter;*/
    TestListView list;
    LinearLayout.LayoutParams lp;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        init();
    }
    void init(){
        list=(TestListView)findViewById(R.id.list);
        image=(ImageView)findViewById(R.id.image);
        list.setAdapter(new GridAdapter(this));
        scroll=(ScrollView)findViewById(R.id.scroll);
        scroll.requestChildFocus(image, null);

    }
    private class GridAdapter extends BaseAdapter{

        Activity context;
        public GridAdapter(Activity context){
            this.context=context;
        }
        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            return texts.length;
        }

        @Override
        public Object getItem(int position) {
            // TODO Auto-generated method stub
            return null;
        }

        @Override
        public long getItemId(int position) {
            // TODO Auto-generated method stub
            return 0;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            // TODO Auto-generated method stub
            ViewHolder holder=null;
            if(convertView==null){
                convertView=context.getLayoutInflater().inflate(R.layout.item, null);
                holder=new ViewHolder();
                holder.text=(TextView)convertView.findViewById(R.id.grid_text);
                convertView.setTag(holder);
            }
            else{
                holder=(ViewHolder)convertView.getTag();
            }
            holder.text.setText(texts[position]);
            return convertView;
        }
        class ViewHolder {
            TextView text;
        }

    }
}

TestListView.java代码如下：

[java]
package com.csdn.blog.scrollview;

import android.content.Context;&

补充：移动开发 , Android ,