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我在我的应用程序中使用自定义列表视图，我想像这张图片一样在列表视图周围创建一个边框

在此处输入图像描述

但是，如果我添加角落，那么屏幕看起来像这样，它在角落显示了很多点

但我的屏幕最终看起来像这样：

在此处输入图像描述

我正在使用自定义列表视图类

<?xml version="1.0" encoding="UTF-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/taskscrollviewid" android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <LinearLayout android:layout_width="fill_parent"
        android:layout_height="fill_parent" android:background="#BDBDBD"
        android:orientation="vertical">

        <RelativeLayout android:layout_width="fill_parent"
            android:layout_height="wrap_content" android:background="@drawable/imagelogo2"
            android:orientation="horizontal">

            <ImageView android:id="@+id/test_button_image"
                android:layout_width="wrap_content" android:layout_height="wrap_content"
                android:paddingLeft="5dp" android:paddingTop="20dp" android:src="@drawable/back">
            </ImageView>

            <ImageView android:id="@+id/test_button_image2"
                android:layout_width="wrap_content" android:layout_height="wrap_content"
                android:layout_alignParentRight="true" android:paddingLeft="5dp"
                android:paddingRight="15dp" android:paddingTop="15dp" android:src="@drawable/options1" />
        </RelativeLayout>

        <TextView android:id="@+id/Elementaryschool"
            android:layout_width="wrap_content" android:layout_height="wrap_content"
            android:layout_toRightOf="@+id/btnback" android:paddingBottom="10dp"
            android:paddingLeft="5dp" android:paddingTop="10dp" android:textSize="17dp"
            android:textStyle="bold">
        </TextView>

        <LinearLayout android:id="@+id/lytContent"
            android:layout_width="fill_parent" android:layout_height="wrap_content"
            android:layout_marginLeft="10dp" android:layout_marginRight="10dp"
            android:layout_marginTop="10dp" android:background="@drawable/border2"
            android:orientation="vertical">

            <com.schoollunchapp.ExpandableHeightListView
                android:id="@+id/listMainMenu11" android:layout_width="match_parent"
                android:layout_height="wrap_content" android:dividerHeight="1dip"
                android:fadingEdge="none" android:focusable="false"
                android:listSelector="@drawable/listview_selector"
                android:scrollbars="none">
            </com.schoollunchapp.ExpandableHeightListView>
        </LinearLayout>

        <TextView android:id="@+id/MiddleSchool"
            android:layout_width="wrap_content" android:layout_height="wrap_content"
            android:paddingBottom="10dp" android:paddingLeft="5dp"
            android:paddingTop="10dp" android:textSize="17dp" android:textStyle="bold">
        </TextView>

        <LinearLayout android:id="@+id/lytContent2"
            android:layout_width="fill_parent" android:layout_height="wrap_content"
            android:layout_marginTop="10dp" android:background="@drawable/border2"
            android:orientation="vertical" android:paddingLeft="10dp"
            android:paddingRight="10dp">

            <com.schoollunchapp.ExpandableHeightListView
                android:id="@+id/listMainMenu22" android:layout_width="match_parent"
                android:layout_height="wrap_content" android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp" android:dividerHeight="1dip"
                android:fadingEdge="none" android:focusable="false"
                android:listSelector="@drawable/listview_selector"
                android:scrollbars="none">
            </com.schoollunchapp.ExpandableHeightListView>
        </LinearLayout>

        <TextView android:id="@+id/HighSchool" android:layout_width="wrap_content"
            android:layout_height="wrap_content" android:layout_toRightOf="@+id/btnback"
            android:paddingBottom="10dp" android:paddingLeft="5dp"
            android:paddingTop="10dp" android:textSize="17dp" android:textStyle="bold">
        </TextView>

        <LinearLayout android:id="@+id/lytContent3"
            android:layout_width="fill_parent" android:layout_height="wrap_content"
            android:layout_marginTop="10dp" android:background="@drawable/border2"
            android:orientation="vertical" android:paddingLeft="10dp"
            android:paddingRight="10dp">

            <com.schoollunchapp.ExpandableHeightListView
                android:id="@+id/listMainMenu33" android:layout_width="match_parent"
                android:layout_height="wrap_content" android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp" android:dividerHeight="1dip"
                android:fadingEdge="none" android:focusable="false"
                android:listSelector="@drawable/listview_selector"
                android:scrollbars="none">
            </com.schoollunchapp.ExpandableHeightListView>
        </LinearLayout>

        <TextView android:id="@+id/AtipicalSchool"
            android:layout_width="wrap_content" android:layout_height="wrap_content"
            android:layout_toRightOf="@+id/btnback" android:paddingBottom="10dp"
            android:paddingLeft="5dp" android:paddingTop="10dp" android:textSize="17dp"
            android:textStyle="bold">
        </TextView>

        <LinearLayout android:id="@+id/lytContent4"
            android:layout_width="fill_parent" android:layout_height="wrap_content"
            android:layout_marginTop="10dp" android:background="@drawable/border2"
            android:orientation="vertical" android:paddingLeft="10dp"
            android:paddingRight="10dp">

            <com.schoollunchapp.ExpandableHeightListView
                android:id="@+id/listMainMenu44" android:layout_width="match_parent"
                android:layout_height="wrap_content" android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp" android:dividerHeight="1dip"
                android:fadingEdge="none" android:focusable="false"
                android:listSelector="@drawable/listview_selector">
            </com.schoollunchapp.ExpandableHeightListView>
        </LinearLayout>
    </LinearLayout>

</ScrollView>

摘录border2.xml：

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <solid android:color="#000000" />
        </shape>
    </item>
    <item android:right="1dp" android:top="1dp" android:bottom="1dp"
        android:left="1dp">
        <shape android:shape="rectangle">
            <solid android:color="#ffffff" />

        </shape>
    </item>
</layer-list>

摘录adapterclass.xml：

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


    android:padding="5dp">
    <ImageView android:id="@+id/imgThumb" android:layout_width="90dp"
        android:layout_height="60dp" android:layout_marginRight="10dp"
        android:scaleType="centerCrop" android:background="@color/background"
        android:layout_alignParentLeft="true" android:layout_centerVertical="true" />
    <TextView android:id="@+id/txtText" android:layout_width="wrap_content"
        android:layout_height="wrap_content" android:textColor="@color/text"
        android:textStyle="bold" android:textSize="22sp"
        android:layout_toRightOf="@+id/imgThumb"
        android:layout_centerVertical="true" />
    <ImageView android:id="@+id/imgNav" android:layout_width="wrap_content"
        android:layout_height="wrap_content" android:src="@drawable/nav_next1"
        android:layout_alignParentRight="true" android:layout_centerVertical="true" />
</RelativeLayout>
4

1 回答 1

0

您需要在 /drawable 文件夹中创建两个形状文件

这是代码

/drawable/top_rounded_corner

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
       android:shape="rectangle" >

    <solid android:color="#fff000" />

   <corners
      android:bottomLeftRadius="0dp"
      android:bottomRightRadius="0dp"
      android:topLeftRadius="10dp"
      android:topRightRadius="10dp" >
 </corners>

</shape>

/drawable/bottom_rounded_corner

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
      android:shape="rectangle" >

  <solid android:color="#fff000" />

  <corners
     android:bottomLeftRadius="10dp"
     android:bottomRightRadius="10dp"
     android:topLeftRadius="0dp"
     android:topRightRadius="0dp" >
  </corners>

</shape>

根据您的要求更改颜色并将此可绘制对象设置为列表视图的项目背景。

@Override
public View getView(final int position, View convertView, ViewGroup parent) {

    ViewHolder viewHolder;
    // Initialize component of custom_showdata_student.xml.
    if (convertView == null) {
        viewHolder = new ViewHolder();
        layoutinflater = (LayoutInflater) activity
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = layoutinflater.inflate(R.layout.list_row, null);

        viewHolder.txtName = (TextView) convertView.findViewById(R.id.list_row_txtname);
        convertView.setTag(viewHoder);

    } else {
        viewHolder = (ViewHolder) convertView.getTag();
    }// Fill data of particular position.

    if (position == 0)
        convertView.setBackgroundResource(R.drawable.top_rounded_corner);
    else if (position == getCount())
        convertView.setBackgroundResource(R.drawable.bottom_rounded_corner);
  return convertView;

}
于 2013-08-22T09:31:46.297 回答