致新手 android中ScrollView嵌套listview

先看效果 画质有点垃圾 格式工厂转换的

布局文件

<?xml version="1.0" encoding="utf-8"?><ScrollView    android:layout_height="match_parent"    android:layout_width="match_parent"    android:fillViewport="true"    android:id="@+id/sv"    xmlns:android="http://schemas.android.com/apk/res/android"><LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/activity_main"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.example.scrollviewandlistview.MainActivity">    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="嵌套个listview看看"        android:textColor="@color/colorAccent"        android:textSize="19sp"/>    <com.example.scrollviewandlistview.ListViewForScorollView        android:id="@+id/listview"        android:layout_width="match_parent"        android:layout_height="200dp">    </com.example.scrollviewandlistview.ListViewForScorollView>    <ImageView        android:layout_width="match_parent"        android:layout_height="500dp"        android:background="@mipmap/ic_launcher"/>    <ImageView        android:layout_width="match_parent"        android:layout_height="200dp"        android:background="@mipmap/ic_launcher"/></LinearLayout></ScrollView>

 activity 里的代码

package com.example.scrollviewandlistview;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.MotionEvent;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.LinearLayout;import android.widget.ListAdapter;import android.widget.ListView;import android.widget.ScrollView;import android.widget.Toast;import java.util.List;public class MainActivity extends AppCompatActivity {    private static final String TAG = "cj";    private String[] arrays ={"河南","河北","山东","山西","广西","广东","北京","上海", "四川",            "甘肃","内蒙古","青海","陕西","云南","天津","重庆","辽宁","吉林","黑龙江","湖南",            "湖北","安徽", "新疆","江苏","浙江","江西","福建","贵州","西藏","宁夏","海南","台湾","香港","澳门"};    private ListViewForScorollView mListview1;    private ScrollView scrollView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initView();    }    private void initView() {        mListview1 = (ListViewForScorollView) findViewById(R.id.listview);        mListview1.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,arrays));        //下面这三行 得到listview里面有多少个条目        ListAdapter listadapter = mListview1.getAdapter();        int count = listadapter.getCount();        Log.e(TAG, "listview里有多少个条目： "+count );        scrollView = (ScrollView) findViewById(R.id.sv);        scrollView.smoothScrollTo(0,0);        mListview1.setOnTouchListener(new View.OnTouchListener() {            @Override            public boolean onTouch(View v, MotionEvent event) {                if (event.getAction()==MotionEvent.ACTION_UP) {                    scrollView.requestDisallowInterceptTouchEvent(false);//最重要的一句                }else {                    scrollView.requestDisallowInterceptTouchEvent(true);                }                return false;            }        });        mListview1.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                String sheng = arrays[position];                    Toast.makeText(MainActivity.this, sheng, Toast.LENGTH_SHORT).show();            }        });    }    //动态设置listview的高度（根据儿子的个数）    // 如果在listview条目较少的情况下，    // 可以使用这一种方式，将listview的条目全部显示出来    //但是如果想让listview也能滑动情况下就得重写listview了    //最重要的是lv的ontouchListener方法，得到事件的消费焦点    public void setListViewHeightBasedOnChildren(ListView listView) {        if(listView == null) return;        ListAdapter listAdapter = listView.getAdapter();        if (listAdapter == null) {            // pre-condition            return;        }        int totalHeight = 0;        for (int i = 0; i < listAdapter.getCount(); i++) {            View listItem = listAdapter.getView(i, null, listView);            listItem.measure(0, 0);            totalHeight += listItem.getMeasuredHeight();        }        ViewGroup.LayoutParams params = listView.getLayoutParams();        params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));        listView.setLayoutParams(params);    }}

重写的listview

package com.example.scrollviewandlistview;import android.content.Context;import android.util.AttributeSet;import android.widget.ListView;/** * Created by Administrator on 2016/10/15. */public class ListViewForScorollView extends ListView {    public ListViewForScorollView(Context context) {        super(context);    }    public ListViewForScorollView(Context context, AttributeSet attrs) {        super(context, attrs);    }    public ListViewForScorollView(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);    }    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        int gaodu = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);//显示所有条目        int gaodu2 = MeasureSpec.makeMeasureSpec(500, MeasureSpec.AT_MOST);//指定listview的高度        super.onMeasure(widthMeasureSpec, gaodu2);    }}