<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical"
  tools:context="com.lin.mr.mystudy.scrollview.TestActivity">

  <ListView
    android:id="@+id/listView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
  </ListView>

</LinearLayout>

public class TestActivity extends Activity {
  private ListView listView;
  private ArrayList<String> list;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_test);
    listView = (ListView) findViewById(R.id.listView);
findViewById(R.id.ll_container);

    list = new ArrayList<>();
    //生成需要显示到ListView中的数据
    for (int i = 0; i < 30; i++) {
      list.add("这是数据"+i);
    }
    //使用ArrayAdapter适配数据
    listView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,list));
  }
}

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  tools:context="com.lin.mr.mystudy.scrollview.TestActivity">

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <ListView
      android:id="@+id/listView"
      android:layout_width="match_parent"
      android:layout_height="wrap_content">

    </ListView>

    <ImageView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:src="@mipmap/ic_launcher" />

    <ImageView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:src="@mipmap/ic_launcher" />

    <Button
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="按钮一" />

    <Button
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="按钮二" />

  </LinearLayout>

</ScrollView>

/**
 * 自定义ListView
 */
public class MyListView extends ListView {

  public MyListView(Context context) {
    super(context);
  }

  public MyListView(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

  public MyListView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
  }

  @Override
  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    heightMeasureSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE>>2,//右移运算符，相当于除于4
        MeasureSpec.AT_MOST);//测量模式取最大值
    super.onMeasure(widthMeasureSpec,heightMeasureSpec);//重新测量高度
  }
}

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  tools:context="com.lin.mr.mystudy.scrollview.TestActivity">

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <ImageView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:src="@mipmap/ic_launcher" />

    <ImageView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:src="@mipmap/ic_launcher" />

    <com.lin.mr.mystudy.scrollview.MyListView
      android:id="@+id/listView"
      android:layout_width="match_parent"
      android:layout_height="wrap_content">

    </com.lin.mr.mystudy.scrollview.MyListView>

    <Button
      android:layout_margin="4dp"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="按钮一" />

    <Button
      android:layout_margin="4dp"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="按钮二" />

  </LinearLayout>

</ScrollView>