圆角背景的ListView

 
先定义一张圆角的图片shape_bg_listview.xml 

Xml代码

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" 
       android:shape="rectangle"
       >
       <gradient  
       android:startColor="@android:color/white"  
       android:endColor="#FFCCCCCC"  
       android:angle="180" 
       />
       <stroke android:width="0px" 
       android:color="@android:color/white" 
       /> 
       <solid android:color="@android:color/white" 
       /> 
       <corners 
       android:bottomRightRadius="20px" 
       android:bottomLeftRadius="20px" 
       android:topLeftRadius="20px" 
       android:topRightRadius="20px" 
       />
</shape> 

然后在ListView中引用它，注意android:listSelector为了去掉选中效果： 

Xml代码 

<ListView android:id="@+id/list" 
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content"
        android:layout_margin="20.0dip"
        android:cacheColorHint="@null" 
                android:listSelector="@drawable/shape_bg_listview"
        android:background="@drawable/shape_bg_listview"
        />

public class App extends Activity {
    private ListView mListView = null;
    
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        ArrayList<String> list =new ArrayList<String>();
        list.add("1");
        list.add("2");
        list.add("3");
        mListView =  (ListView)findViewById(R.id.list);
        mListView.setAdapter(new AppAdapter(this,list));
    }
    
    class AppAdapter extends BaseAdapter{

        Context context;
        ArrayList<String> list;
        AppAdapter(Context context,ArrayList<String> list){
            this.context=context;
            this.list=list;
        }
        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            return list.size();
        }

        @Override
        public Object getItem(int position) {
            // TODO Auto-generated method stub
            return list.get(position);
        }

        @Override
        public long getItemId(int position) {
            // TODO Auto-generated method stub
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            // TODO Auto-generated method stub
            TextView tv;
            if(convertView==null){
                convertView=LayoutInflater.from(context).inflate(R.layout.simple_item_2, null);
            }
            tv=(TextView)convertView.findViewById(R.id.name);
            tv.setText(list.get(position));
            return convertView;
        }
        
    }
}

simple_item_2.xml定义如下： 

Xml代码

<?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"
    >
    <TextView
        android:id="@+id/name"
        android:textSize="17.0sp"
        android:textColor="@android:color/black"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="20.0dip"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true"
        >
    </TextView>
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginRight="20.0dip"
        android:src="@drawable/arrow"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        >
    </ImageView>
</RelativeLayout>

代码：https://files.cnblogs.com/shanzei/Test_radio.rar
转自：http://gundumw100.iteye.com/blog/1085930

 

Android学习系列(17)--App列表之圆角ListView(续)