我正在使用自定义列表视图,每行使用2张图片视图作为背景。一切都很好,除了每个项目之间留有空白的事实。这是我的代码:
首先是我的list_row.xml。请注意,2个图像视图是图像和暗覆盖,使第一个图像更暗,文本更容易阅读。它们充当每一行的背景。
<?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">
<!-- BG Image -->
<ImageView
android:id="@+id/image_bg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"/>
<!-- Dark Overlay for BG Image -->
<ImageView
android:id="@+id/image_bg_over"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true" />
<TextView
android:id="@+id/filler"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:layout_centerHorizontal="true" />
<!-- Bar Name -->
<TextView
android:id="@+id/barname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_below="@id/filler"
android:textSize="@dimen/title"
android:textStyle="bold"
android:textColor="@color/list_text_color"/>
<!-- Address -->
<TextView
android:id="@+id/address"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/barname"
android:gravity="center"
android:layout_marginTop="1dip"
android:textColor="@color/list_text_color"
android:textSize="@dimen/rating"/>
<!-- Text CheckIn / CheckOut -->
<TextView
android:id="@+id/check"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_below="@+id/address"
android:layout_marginTop="10dp"
android:layout_centerHorizontal="true"
android:textColor="@color/list_text_color"
android:textSize="@dimen/genre"/>
<!-- Image CheckIn / CheckOut -->
<ImageView
android:id="@+id/checkImg"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginTop="10dp"
android:layout_below="@+id/address"
android:gravity="right"
android:layout_toRightOf="@+id/check"
android:adjustViewBounds="true" />
</RelativeLayout>
然后我的适配器:
public View getView(int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.list_row, null);
ImageView bgImg = (ImageView) convertView.findViewById(R.id.image_bg);
ImageView bgImgOver = (ImageView) convertView.findViewById(R.id.image_bg_over);
TextView barname = (TextView) convertView.findViewById(R.id.barname);
TextView address = (TextView) convertView.findViewById(R.id.address);
ImageView checkImg = (ImageView) convertView.findViewById(R.id.checkImg);
TextView check = (TextView) convertView.findViewById(R.id.check);
Bar m = barItems.get(position);
bgImg.setImageResource(R.drawable.bg_default);
bgImgOver.setImageResource(R.drawable.bg_darkover);
barname.setText(m.getPlaceName());
address.setText(m.getAddress());
check.setText("Check-In");
checkImg.setImageResource(R.drawable.ic_checkin);
return convertView;
}
片段的xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="@+id/places_list"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
我创建listview的片段的onViewCreated方法:
@Override
public void onViewCreated(View view, Bundle savedInstanceState) { //Otherwise can't use findViewById
listView = (ListView) getView().findViewById(R.id.list);
adapter = new CustomListAdapter(getActivity(), barList);
listView.setAdapter(adapter);
Bar bar1 = new Bar();
bar1.setPlaceName("place1");
bar1.setAddress("Addr1");
barList.add(bar1);
Bar bar2 = new Bar();
bar2.setPlaceName("place2");
bar2.setAddress("Addr2");
barList.add(bar2);
Bar bar3 = new Bar();
bar3.setPlaceName("place3");
bar3.setAddress("Addr3");
barList.add(bar3);
adapter.notifyDataSetChanged();
listView.setDivider(null);
listView.setDividerHeight(0);
}
使用setDivider我可以删除空白区域内的黑色分隔符,但不能删除空白区域。您可以在屏幕截图中看到空格
我认为我在相对布局中犯了一个错误,创造了这个空间,但我找不到任何帮助,我不知道!
答案 0 :(得分:1)
<!-- BG Image -->
<ImageView
android:id="@+id/image_bg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitXY"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"/>
<!-- Dark Overlay for BG Image -->
并为顶部项RelativeLayout
设置固定高度;
答案 1 :(得分:0)
我认为你的图像背景不够高,将这2个属性添加到图像背景中并查看
android:scaleType="centerCrop"