圆角listview

1.重写listview

package com.example.cornerlistviewdemo;

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListAdapter;
import android.widget.ListView;

/**
 * 自定义圆角ListView
 * @author DingMaolin
 *
 */
public class CornerListView extends ListView {
    public CornerListView(Context context) {
        super(context);
    }

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

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

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        switch (ev.getAction()) {
        case MotionEvent.ACTION_DOWN:
                int x = (int) ev.getX();
                int y = (int) ev.getY();
                int itemnum = pointToPosition(x, y);

                if (itemnum == AdapterView.INVALID_POSITION)
                        break;                 
                else{
                	if(itemnum==0){
                        if(itemnum==(getAdapter().getCount()-1)){  
                        	// 只有一项
                            setSelector(R.drawable.listview_corner_round);
                        }else{
                        	 // 第一项
                            setSelector(R.drawable.listview_corner_round_top);
                        }
	                }else if(itemnum==(getAdapter().getCount()-1)){
	                	 // 最后一项
	                        setSelector(R.drawable.listview_corner_round_bottom);
	                }else{      
	                	 // 中间项
	                    setSelector(R.drawable.listview_corner_middle);
	                }
                }

                break;
        case MotionEvent.ACTION_UP:
                break;
        }
        
        return super.onInterceptTouchEvent(ev);
    }
    
    /**
	  * 设置不滚动
	  */
	 @Override
	 public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

	  int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
	    MeasureSpec.AT_MOST);
	  super.onMeasure(widthMeasureSpec, expandSpec);
	 }
    
    /***
	 * 动态设置listview的高度
	 * 
	 * @param listView
	 */
	public void setListViewHeightBasedOnChildren(ListView listView) {
		ListAdapter listAdapter = listView.getAdapter();
		if (listAdapter == null) {
			return;
		}
		int totalHeight = 0;
		for (int i = 0; i < listAdapter.getCount(); i++) {
			View listItem = listAdapter.getView(i, null, listView);
			listItem.measure(0, 0);
			totalHeight += listItem.getMeasuredHeight();
		}
		ViewGroup.LayoutParams params = listView.getLayoutParams();
		params.height = totalHeight
				+ (listView.getDividerHeight() * (listAdapter.getCount() - 1));
		// params.height += 5;// if without this statement,the listview will be
		// a
		// little short
		// listView.getDividerHeight()获取子项间分隔符占用的高度
		// params.height最后得到整个ListView完整显示需要的高度
		listView.setLayoutParams(params);
	}
}

2.定义圆角drawable

不多说了，直接上源码吧

下载完整源码：http://download.youkuaiyun.com/detail/dingmaolin/4635107