在 ScrollView 中滚动 ListView [英] scrolling ListView within ScrollView

问题描述

我有一个滚动视图.它的子元素之一是 ListView.两者都在同一个方向滚动.如何让他们都响应滚动事件?然后当到达 ListView 的末尾时，事件会转到父 ScrollView 以便 ScrollView 可以滚动?

I have a ScrollView. One of its children is a ListView. Both scrolling in the same direction. How do I get both of them to respond to scroll events? And then when the end of the ListView is reached for the event to go to the parent ScrollView so the ScrollView may scroll?

xml 布局:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
... 
android:layout_width="match_parent"
    android:layout_height="match_parent"
    >

    <LinearLayout
        ...
        android:orientation="vertical"
        >



        <LinearLayout
            android:id="@+id/..."
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="0"

            android:orientation="horizontal">

            ...
        </LinearLayout>

        <android.support.v4.view.ViewPager
            .../>


        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:padding="@dimen/pad_half"
            >
        </RelativeLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:gravity="center_vertical"
            >
        </LinearLayout>



    </LinearLayout>
</ScrollView>

我的 ListView 实际上进入了 ViewPager.该设计使得 ListView 中的大约三个项目可见，并且用户能够滚动以查看其他项目.同时，ViewPager 上方和下方的视图都是可见的.同样，它是一个 ViewPager:它有其他页面而不是有问题的 ListView.

My ListView actually goes inside the ViewPager. The design is such that about three items in the ListView is visible, and user is able to scroll to see other items. In the meantime, the views above and below the ViewPager are visible. Again, it's a ViewPager: it has other pages than the ListView in question.

推荐答案

滚动视图中不应有列表视图.

You Should not have a listview within a ScrollView.

但是您可以拥有一个自定义类并使用它来在 ScrollView 中完成 A Listview.

But you can have a custom class and use that to accomplish A Listview with in a ScrollView.

试试下面的代码

首先创建一个自定义的 ScrollView 类.

first make a custom ScrollView Class.

public class VerticalScrollview extends ScrollView{

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

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

    public VerticalScrollview(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    final int action = ev.getAction();
    switch (action)
    {
        case MotionEvent.ACTION_DOWN:
                super.onTouchEvent(ev);
                break;

        case MotionEvent.ACTION_MOVE:
                return false; // redirect MotionEvents to ourself

        case MotionEvent.ACTION_CANCEL:
                super.onTouchEvent(ev);
                break;

        case MotionEvent.ACTION_UP:
                return false;

        default: break;
    }

    return false;
}

@Override
public boolean onTouchEvent(MotionEvent ev) {
    super.onTouchEvent(ev);
     return true;
}
}

然后使用这个类为你布局

Then use this class for you layout

<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:background="@android:color/white"
android:orientation="vertical" >

<com.gui.today.VerticalScrollview
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#000000"
    tools:context=".MainActivity" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" >
     <FrameLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" >

            <ProgressBar
                android:id="@+id/progressBar3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical|center_horizontal" />

            <TextView
                android:id="@+id/empty_calender"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical|center_horizontal"
                android:text="@string/empty_calender"
                android:textColor="#ffffff"
                android:visibility="gone" />

            <ListView
                android:id="@+id/listView2"
                android:layout_width="fill_parent"
                android:layout_height="150dp" >
            </ListView>
        </FrameLayout>
    </LinearLayout>
  </com.gui.today.VerticalScrollview>

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