如何在scrollview android中使用多个expandablelistview？答案

【问题标题】：how to use multiple expandablelistview inside scrollview android?如何在scrollview android中使用多个expandablelistview？
【发布时间】：2018-09-28 04:24:46
【问题描述】：

我想在单个屏幕中设置 3 个 expandablelistview 我想添加多个 expandablelistview

XmlLayout

//this is my scorllview
<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"
    android:fillViewport="true"
    tools:context=".fragments.FragmentTestWellnessScoreBoard">


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


        <LinearLayout
            android:id="@+id/llHealth"
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <TextView
                android:id="@+id/tvHealthTitle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:textStyle="bold"
                android:layout_margin="@dimen/margin_10"
                android:text="Health"/>

            <ExpandableListView
                android:id="@+id/elHealth"
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

        </LinearLayout>


        <LinearLayout
            android:id="@+id/llChallenge"
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <TextView
                android:id="@+id/tvChallengeTitle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:textStyle="bold"
                android:layout_margin="@dimen/margin_10"
                android:text="Challenge"/>

            <ExpandableListView
                android:id="@+id/elChallenge"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

        </LinearLayout>


        <LinearLayout
            android:id="@+id/llRisk"
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <TextView
                android:id="@+id/tvRiskTitle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:textStyle="bold"
                android:layout_margin="@dimen/margin_10"
                android:text="Risk"/>

            <ExpandableListView
                android:id="@+id/elRisk"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

        </LinearLayout>

    </LinearLayout>

我想在用户点击时一一设置适配器我不知道如何设置多个expandableList？ Java 文件

private TestWellnessScoreBoardExpandableListAdapter mHealthaAdapter;
private TestWellnessScoreBoardExpandableListAdapter mChallengeAdapter;
private TestWellnessScoreBoardExpandableListAdapter mRiskAdapter;

private ExpandableListView elHealth;
private ExpandableListView elChallenge;
private ExpandableListView elRisk;

// this is my click listener to set adapter
private View.OnClickListener mOnClickListener = new View.OnClickListener() {
    @Override
    public void onClick(View v) {

        switch (v.getId()) {
            case R.id.tvHealthTitle:

                mHealthaAdapter = new TestWellnessScoreBoardExpandableListAdapter(getActivity(), mWellnessResult.getWellnessArrayList());
                elHealth.setAdapter(mHealthaAdapter);

                break;
            case R.id.tvChallengeTitle:
                mChallengeAdapter = new TestWellnessScoreBoardExpandableListAdapter(getActivity(), mWellnessResult.getWellnessArrayList());
                elChallenge.setAdapter(mChallengeAdapter);
                break;
            case R.id.tvRiskTitle:
                mRiskAdapter = new TestWellnessScoreBoardExpandableListAdapter(getActivity(), mWellnessResult.getWellnessArrayList());
                elRisk.setAdapter(mRiskAdapter);
                break;
        }

    }
};

一切正常，但视图未全屏显示但它没有全屏显示

【问题讨论】：

尝试使用NestedScrollView
thedeveloperworldisyours.com/android/…
@VishvaDave NestedScrollView 不工作我已经尝试过
@VishvaDave 感谢链接
@VishvaDave 工作正常，非常感谢您

标签： android android-layout expandablelistview expandablelistadapter

【解决方案1】：

试试这个：

xml代码：

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/activity_expandable_scroll_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">

<LinearLayout
    android:id="@+id/LinearLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin">


         <ExpandableListView
        android:id="@+id/activity_expandable_list_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/white"/>

           </LinearLayout>
           </ScrollView>

java类

mListView = (ExpandableListView) findViewById(R.id.activity_expandable_list_view);
    MyExpandableListAdapter adapter = new MyExpandableListAdapter(this,
            mGroups);
    mListView.setAdapter(adapter);
    mListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {

        @Override
        public boolean onGroupClick(ExpandableListView parent, View v,
                                    int groupPosition, long id) {
            setListViewHeight(parent, groupPosition);
            return false;
        }
    });

需要这个功能：

private void setListViewHeight(ExpandableListView listView,
                           int group) {
ExpandableListAdapter listAdapter = (ExpandableListAdapter) listView.getExpandableListAdapter();
int totalHeight = 0;
int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(),
        View.MeasureSpec.EXACTLY);
for (int i = 0; i < listAdapter.getGroupCount(); i++) {
    View groupItem = listAdapter.getGroupView(i, false, null, listView);
    groupItem.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);

    totalHeight += groupItem.getMeasuredHeight();

    if (((listView.isGroupExpanded(i)) && (i != group))
            || ((!listView.isGroupExpanded(i)) && (i == group))) {
        for (int j = 0; j < listAdapter.getChildrenCount(i); j++) {
            View listItem = listAdapter.getChildView(i, j, false, null,
                    listView);
            listItem.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);

            totalHeight += listItem.getMeasuredHeight();

        }
    }
}

ViewGroup.LayoutParams params = listView.getLayoutParams();
int height = totalHeight
        + (listView.getDividerHeight() * (listAdapter.getGroupCount() - 1));
if (height < 10)
    height = 200;
params.height = height;
listView.setLayoutParams(params);
listView.requestLayout();

}

【讨论】：

【解决方案2】：

您不能在滚动视图中使用可滚动视图，否则您将遇到子可滚动视图的高度问题。

在滚动视图中使用 ExpandableListView 的两种方式。

1.创建自定义不可滚动展开视图：

public class CustomExpandableListView extends ExpandableListView {

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

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

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

            @Override
            public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
                int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(
                        Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
                super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);
                ViewGroup.LayoutParams params = getLayoutParams();
                params.height = getMeasuredHeight();
            }
        }

您的 XML：

     <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"
android:fillViewport="true"
tools:context=".fragments.FragmentTestWellnessScoreBoard">


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


    <LinearLayout
        android:id="@+id/llHealth"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/tvHealthTitle"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:textStyle="bold"
            android:layout_margin="@dimen/margin_10"
            android:text="Health"/>

        <com.yourpkg.CustomExpandableListView
            android:id="@+id/elHealth"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

    </LinearLayout>


    <LinearLayout
        android:id="@+id/llChallenge"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/tvChallengeTitle"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:textStyle="bold"
            android:layout_margin="@dimen/margin_10"
            android:text="Challenge"/>

        <com.yourpkg.CustomExpandableListView
            android:id="@+id/elChallenge"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

    </LinearLayout>


    <LinearLayout
        android:id="@+id/llRisk"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/tvRiskTitle"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:textStyle="bold"
            android:layout_margin="@dimen/margin_10"
            android:text="Risk"/>

        <com.yourpkg.CustomExpandableListView
            android:id="@+id/elRisk"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

    </LinearLayout>

</LinearLayout>

为您想在滚动视图中使用的所有 ExpandableListView 指定硬代码高度。

  <ExpandableListView               
        android:layout_width="match_parent"
        android:layout_height="200dp" />

【讨论】：

第一种方法是否适用于 4 级可扩展列表视图？？

【解决方案3】：

尝试我在您的 xml 设计中所做的以下更改：

<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"
    android:fillViewport="true">


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:weightSum="3">


        <LinearLayout
            android:id="@+id/llHealth"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1"
            android:orientation="vertical">

            <TextView
                android:id="@+id/tvHealthTitle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="@dimen/margin_10"
                android:gravity="center"
                android:text="Health"
                android:textStyle="bold" />

            <ExpandableListView
                android:id="@+id/elHealth"
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

        </LinearLayout>


        <LinearLayout
            android:id="@+id/llChallenge"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1"
            android:orientation="vertical">

            <TextView
                android:id="@+id/tvChallengeTitle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="@dimen/margin_10"
                android:gravity="center"
                android:text="Challenge"
                android:textStyle="bold" />

            <ExpandableListView
                android:id="@+id/elChallenge"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

        </LinearLayout>


        <LinearLayout
            android:id="@+id/llRisk"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1"
            android:orientation="vertical">

            <TextView
                android:id="@+id/tvRiskTitle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="@dimen/margin_10"
                android:gravity="center"
                android:text="Risk"
                android:textStyle="bold" />

            <ExpandableListView
                android:id="@+id/elRisk"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

        </LinearLayout>

    </LinearLayout>
</ScrollView>

【讨论】：