public static void setListViewHeightBasedOnChildren(ListView listView) {// 获取ListView对应的AdapterListAdapter listAdapter = listView.getAdapter();if (listAdapter == null) {return;}int totalHeight = 0;for (int i = 0, len = listAdapter.getCount(); i < len; i++) { // listAdapter.getCount()返回数据项的数目View listItem = listAdapter.getView(i, null, listView);listItem.measure(0, 0); // 计算子项View 的宽高totalHeight += listItem.getMeasuredHeight(); // 统计所有子项的总高度
        }ViewGroup.LayoutParams params = listView.getLayoutParams();params.height = totalHeight+ (listView.getDividerHeight() * (listAdapter.getCount() - 1));// listView.getDividerHeight()获取子项间分隔符占用的高度// params.height最后得到整个ListView完整显示需要的高度
        listView.setLayoutParams(params);}

import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.util.TypedValue;
import android.view.View;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;/**** * @author FreePC**/
public class LinearLayoutForListView extends LinearLayout
{private BaseAdapter adapter;private OnItemClickListener onItemClickListener;/*** 通过 Java代码  实例化* @param context*/public LinearLayoutForListView(Context context){super(context);//设置LinearLayoutForListView为垂直布局，否者默认为水平布局，容易疏忽导致子项显示不全LinearLayoutForListView.this.setOrientation(LinearLayout.VERTICAL);}/*** 此构造函数可以允许我们通过 XML的方式注册 控件* @param context* @param attrs*/public LinearLayoutForListView(Context context, AttributeSet attrs){super(context, attrs);LinearLayoutForListView.this.setOrientation(LinearLayout.VERTICAL);}/*** 设置适配器* * @param adpater*/public void setAdapter(BaseAdapter adpater){this.adapter = adpater;bindLinearLayout();}/*** 获取适配器Adapter* * @return adapter*/public BaseAdapter getAdpater(){return adapter;}/*** 绑定布局:将每个子项的视图view添加进此线性布局LinearLayout中*/public void bindLinearLayout(){int count = adapter.getCount();for (int i = 0; i < count; i++){View v = adapter.getView(i, null, null);if (i != count - 1){    //添加每项item之间的分割线v = addLine(v);}addView(v, i);}setItemClickListener();Log.v("countTAG", "" + count);}/*** 添加每项item之间的分割线* * @param view* @return*/public View addLine(View view){//分割线viewView lineView = new View(view.getContext());// 将数据从dip(即dp)转换到px，第一参数为数据原单位（此为DIP），第二参数为要转换的数据值float fPx = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,(float) 0.5, view.getResources().getDisplayMetrics());int iPx = Math.round(fPx);LayoutParams layoutParams = new LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, iPx);lineView.setLayoutParams(layoutParams);lineView.setBackgroundColor(view.getSolidColor());LinearLayout ly = new LinearLayout(view.getContext());ly.setOrientation(LinearLayout.VERTICAL);ly.addView(view);ly.addView(lineView);return ly;}/*** 设置点击子项事件监听对象* @param onItemClickListener*/public void setOnItemClickListener(OnItemClickListener onItemClickListener){this.onItemClickListener = onItemClickListener;setItemClickListener();}/*** 获取点击子项事件监听对象* @return*/public OnItemClickListener getOnItemClickListener(){return onItemClickListen

 <ScrollViewandroid:id="@id/myscrollview"android:layout_width="match_parent"android:layout_height="match_parent"android:background="@color/v_common_line_color"android:orientation="vertical"android:scrollbars="none" ><RelativeLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:layout_marginBottom="8.0dip"android:orientation="vertical" ><FrameLayoutandroid:id="@id/frame_layout"android:layout_width="match_parent"android:layout_height="wrap_content" ><ImageViewandroid:layout_width="match_parent"android:layout_height="200.0dip"android:background="@drawable/home_cover2"android:scaleType="centerCrop" /><RelativeLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:layout_gravity="bottom|left"android:layout_marginBottom="8.0dip"android:layout_marginLeft="16.0dip" ><TextViewandroid:id="@id/txt_city"android:layout_width="wrap_content"android:layout_height="wrap_content"android:textColor="@color/white"android:textSize="@dimen/font18" /><TextViewandroid:id="@id/txt_weather"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_below="@id/txt_city"android:layout_gravity="bottom|left"android:textColor="@color/white"android:textSize="@dimen/font18" /></RelativeLayout></FrameLayout><LinearLayoutandroid:id="@id/linear_title"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_below="@id/frame_layout"android:layout_marginTop="8.0dp"android:background="@drawable/layout_background_corners"android:orientation="vertical"android:padding="8.0dip" ><TextViewandroid:id="@id/txtTitle"android:layout_width="match_parent"android:layout_height="wrap_content"android:gravity="center_vertical"android:textColor="@color/black2"android:textSize="@dimen/font16" /></LinearLayout><ListViewandroid:id="@id/liv_trip"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_below="@id/linear_title"android:layout_marginBottom="8.0dip"android:layout_marginTop="8.0dip"android:divider="@color/cccccc"android:dividerHeight="0px"android:fadingEdge="none" /></RelativeLayout></ScrollView>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical" android:background="@color/v_common_line_color"></LinearLayout>