我是android开发的新手。我遇到了一些未知类型的情况，我的可扩展列表视图没有显示。在添加scroolview之前，它完全适合我。
这里是我的MainActivity.xml： -
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="@+id/linear_layout_outer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<include
android:id="@+id/toolbar"
layout="@layout/toolbar" />
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<ExpandableListView
android:id="@+id/lvExp"
android:layout_width="260dp"
android:layout_height="match_parent"
android:layout_gravity="start">
</ExpandableListView>
<ScrollView
android:id="@+id/list_item"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<LinearLayout
android:id="@+id/line3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<com.daimajia.slider.library.SliderLayout
android:id="@+id/slider"
android:layout_width="match_parent"
android:layout_height="100dp" />
<!-- <View
android:id="@+id/grad_offer_details_view"
android:layout_width="match_parent"
android:layout_height="5dp"
android:background="@android:color/darker_gray"/> -->
<TextView
android:id="@+id/grad_offer_details"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Grab Before Time Runs Out"
android:gravity="center"
android:textSize="20dp"/>
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none">
<LinearLayout
android:id="@+id/linear_layout_outer_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:id="@+id/linear_layout_inner_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:id="@+id/line1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:visibility="gone">
<ImageView
android:id="@+id/image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher"
android:visibility="gone"/>
<TextView
android:id="@+id/text_"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone"/>
<TextView
android:id="@+id/text__"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</HorizontalScrollView>
<View
android:id="@+id/discount_and_offers_view"
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="#d3d3d3"/>
<!-- android:background="@android:color/gray" -->
<TextView
android:id="@+id/discount_and_offers"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Discount And Offers"
android:gravity="center"
android:textSize="20dp"/>
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none">
<LinearLayout
android:id="@+id/linear_layout_outer_discount_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:id="@+id/linear_layout_inner_discount_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:visibility="gone">
<ImageView
android:id="@+id/discount_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher"
android:visibility="gone"/>
<TextView
android:id="@+id/discount_text_"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone"/>
<TextView
android:id="@+id/discount_text__"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</HorizontalScrollView>
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="@android:color/darker_gray"/>
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none"
android:visibility="gone">
<LinearLayout
android:id="@+id/linear_layout_outer_mans_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:visibility="gone">
<LinearLayout
android:id="@+id/linear_layout_inner_mens_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:visibility="gone">
<ImageView
android:id="@+id/mens_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher"
android:visibility="gone"/>
<TextView
android:id="@+id/mens_text__"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone"/>
<TextView
android:id="@+id/mens_textPrice_"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone"/>
</LinearLayout>
<LinearLayout
android:id="@+id/linear_layout_inner_mens_name01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/mens_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone"/>
</LinearLayout>
<LinearLayout
android:id="@+id/linear_layout_inner_mens_price01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/mens_textPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone"/>
</LinearLayout>
</LinearLayout>
</HorizontalScrollView>
<View
android:layout_width="match_parent"
android:layout_height="5dp"
android:background="@android:color/darker_gray"/>
</LinearLayout>
</ScrollView>
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>
我尝试了很多东西，但我找不到合适的解决方案。请帮帮我！
答案 0 :(得分：0)
Plz尝试这可能对你有帮助... 当你在下面设置适配器时调用这个方法......
public static void setListViewHeightBasedOnChildren(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter == null)
return;
int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(), View.MeasureSpec.UNSPECIFIED);
int totalHeight = 0;
View view = null;
for (int i = 0; i < listAdapter.getCount(); i++) {
view = listAdapter.getView(i, view, listView);
if (i == 0)
view.setLayoutParams(new ViewGroup.LayoutParams(desiredWidth, ViewGroup.LayoutParams.WRAP_CONTENT));
view.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);
totalHeight += view.getMeasuredHeight();
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
listView.setLayoutParams(params);
listView.requestLayout();
}
答案 1 :(得分：0)
试试这个，重新排列滚动视图和扩展列表视图的布局位置
<?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">
<LinearLayout
android:id="@+id/linear_layout_outer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<include
android:id="@+id/toolbar"
layout="@layout/toolbar" />
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent" />
<ScrollView
android:id="@+id/list_item"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<LinearLayout
android:id="@+id/line3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<com.daimajia.slider.library.SliderLayout
android:id="@+id/slider"
android:layout_width="match_parent"
android:layout_height="100dp" />
<!-- <View
android:id="@+id/grad_offer_details_view"
android:layout_width="match_parent"
android:layout_height="5dp"
android:background="@android:color/darker_gray"/> -->
<TextView
android:id="@+id/grad_offer_details"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Grab Before Time Runs Out"
android:textSize="20dp" />
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none">
<LinearLayout
android:id="@+id/linear_layout_outer_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:id="@+id/linear_layout_inner_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:id="@+id/line1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:visibility="gone">
<ImageView
android:id="@+id/image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher"
android:visibility="gone" />
<TextView
android:id="@+id/text_"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone" />
<TextView
android:id="@+id/text__"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</HorizontalScrollView>
<View
android:id="@+id/discount_and_offers_view"
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="#d3d3d3" />
<!-- android:background="@android:color/gray" -->
<TextView
android:id="@+id/discount_and_offers"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Discount And Offers"
android:textSize="20dp" />
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none">
<LinearLayout
android:id="@+id/linear_layout_outer_discount_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:id="@+id/linear_layout_inner_discount_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:visibility="gone">
<ImageView
android:id="@+id/discount_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher"
android:visibility="gone" />
<TextView
android:id="@+id/discount_text_"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone" />
<TextView
android:id="@+id/discount_text__"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</HorizontalScrollView>
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="@android:color/darker_gray" />
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none"
android:visibility="gone">
<LinearLayout
android:id="@+id/linear_layout_outer_mans_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:visibility="gone">
<LinearLayout
android:id="@+id/linear_layout_inner_mens_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:visibility="gone">
<ImageView
android:id="@+id/mens_image01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher"
android:visibility="gone" />
<TextView
android:id="@+id/mens_text__"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone" />
<TextView
android:id="@+id/mens_textPrice_"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone" />
</LinearLayout>
<LinearLayout
android:id="@+id/linear_layout_inner_mens_name01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/mens_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone" />
</LinearLayout>
<LinearLayout
android:id="@+id/linear_layout_inner_mens_price01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/mens_textPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello"
android:visibility="gone" />
</LinearLayout>
</LinearLayout>
</HorizontalScrollView>
<View
android:layout_width="match_parent"
android:layout_height="5dp"
android:background="@android:color/darker_gray" />
</LinearLayout>
</ScrollView>
<ExpandableListView
android:id="@+id/lvExp"
android:layout_width="260dp"
android:layout_height="match_parent"
android:layout_gravity="start">
</ExpandableListView>
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>
</LinearLayout>