<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"

            android:layout_width="match_parent"

            android:layout_height="match_parent">

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:orientation="vertical">

        <ListView

            android:id="@+id/lv0"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:background="#ff0"

            android:dividerHeight="5dp"/>

        <TextView

            android:layout_width="match_parent"

            android:layout_height="50dp"

            android:background="#0f0"

            android:gravity="bottom"/>

        <ListView

            android:id="@+id/lv1"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:background="#f0f"

            android:dividerHeight="5dp"/>

    </LinearLayout>

</ScrollView>

import android.app.Activity;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.ViewGroup;

import android.view.Window;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import java.util.ArrayList;

import java.util.List;

/**

 * 设置ListView的自动高度

 * 3种方式:

 * 1.onWindowFocusChanged() 中设置

 * 2.onResume() 中设置

 * 3.onCreate() 中view.post()方法中设置

 */

public class ListViewAutoHeight extends Activity {

    private static final String TAG = "autoHeight";

    private ListView lv0;

    private ListView lv1;

    @Override

    public void onWindowFocusChanged(boolean hasFocus) {

        super.onWindowFocusChanged(hasFocus);

//        setListViewAutoHeight(lv0);

//        setListViewAutoHeight(lv1);

        Log.e(TAG, "onWindowFocusChanged ");

    }

    @Override

    protected void onResume() {

        super.onResume();

//        setListViewAutoHeight(lv0);

//        setListViewAutoHeight(lv1);

        Log.e(TAG, "onResume ");

    }

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        setContentView(R.layout.activity_listview_auto_height);

        lv0 = (ListView) findViewById(R.id.lv0);

        List<String> lv0Datas = new ArrayList<>();

        for (int i = 0; i < 10; i++) {

            lv0Datas.add("item_0_" + i);

        }

        ArrayAdapter<String> adapter0 = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, lv0Datas);

        lv0.setAdapter(adapter0);

        lv1 = (ListView) findViewById(R.id.lv1);

        List<String> lv1Datas = new ArrayList<>();

        for (int i = 0; i < 20; i++) {

            lv1Datas.add("item_1_" + i);

        }

        ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, lv1Datas);

        lv1.setAdapter(adapter1);

        // 随便在哪个控件身上的post 方法中调用设置自动高度的方法即可

        // post 是将该方法添加到Loop队列的末尾,如果直接调用是不起作用的

        lv1.post(new Runnable() {

            @Override

            public void run() {

                setListViewAutoHeight(lv0);

                setListViewAutoHeight(lv1);

                Log.e(TAG, "post ");

            }

        });

    }

    /** 计算高度 */

    private void setListViewAutoHeight(ListView lv) {

        if (lv == null || lv.getCount() <= 0) return;

        int totalHeight = 0;

        for (int i = 0; i < lv.getCount(); i++) {

            View view = lv.getAdapter().getView(i, null, lv);

            view.measure(0, 0);

            totalHeight += view.getMeasuredHeight();

        }

        ViewGroup.LayoutParams params = lv.getLayoutParams();

        params.height = totalHeight + lv.getDividerHeight() * (lv.getCount() - 1) + lv.getPaddingTop() + lv.getPaddingBottom();

        lv.setLayoutParams(params);

    }

}