a亚洲精品_精品国产91乱码一区二区三区_亚洲精品在线免费观看视频_欧美日韩亚洲国产综合_久久久久久久久久久成人_在线区

首頁 > 系統 > Android > 正文

android開發之方形圓角listview代碼分享

2020-04-11 12:16:48
字體:
來源:轉載
供稿:網友

先看效果圖:

首先,你得寫一個類我們命名為CornerListView

[java]

復制代碼 代碼如下:

/**
 * 圓角ListView示例
 * @Description: 圓角ListView示例
 * @FileName: CornerListView.java
 */
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)){                                    
                            setSelector(R.drawable.<SPAN style="COLOR: #ff0000">app_list_corner_round</SPAN>);
                        }else{
                            setSelector(R.drawable.<SPAN style="COLOR: #ff0000">app_list_corner_round_top</SPAN>);
                        }
                    }else if(itemnum==(getAdapter().getCount()-1))
                            setSelector(R.drawable.<SPAN style="COLOR: #ff0000">app_list_corner_round_bottom</SPAN>);
                    else{                            
                        setSelector(R.drawable.<SPAN style="COLOR: #ff0000">app_list_corner_shape</SPAN>);
                    }
                }

                break;
        case MotionEvent.ACTION_UP:
                break;
        }

        return super.onInterceptTouchEvent(ev);
    }
}

/**
 * 圓角ListView示例
 * @Description: 圓角ListView示例
 * @FileName: CornerListView.java
 */
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)){                                  
                            setSelector(R.drawable.app_list_corner_round);
                        }else{
                            setSelector(R.drawable.app_list_corner_round_top);
                        }
                 }else if(itemnum==(getAdapter().getCount()-1))
                         setSelector(R.drawable.app_list_corner_round_bottom);
                 else{                          
                     setSelector(R.drawable.app_list_corner_shape);
                 }
                }

                break;
        case MotionEvent.ACTION_UP:
                break;
        }

        return super.onInterceptTouchEvent(ev);
    }
}


其中,app_list_corner_round

[html]

復制代碼 代碼如下:

<SPAN style="COLOR: #333333"><?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient android:startColor="#BFEEFF" 
        android:endColor="#40B9FF" 
        android:angle="270"/>
    <corners android:topLeftRadius="6dip"
        android:topRightRadius="6dip"
        android:bottomLeftRadius="6dip"
        android:bottomRightRadius="6dip"/>
</shape> </SPAN>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient android:startColor="#BFEEFF"
        android:endColor="#40B9FF"
        android:angle="270"/>
    <corners android:topLeftRadius="6dip"
        android:topRightRadius="6dip"
        android:bottomLeftRadius="6dip"
        android:bottomRightRadius="6dip"/>
</shape>


app_list_corner_round_top

[html]

復制代碼 代碼如下:

<SPAN style="COLOR: #333333"><?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient android:startColor="#BFEEFF" 
        android:endColor="#40B9FF" 
        android:angle="270"/>
    <corners android:topLeftRadius="6dip"
        android:topRightRadius="6dip"/>
</shape> </SPAN>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient android:startColor="#BFEEFF"
        android:endColor="#40B9FF"
        android:angle="270"/>
    <corners android:topLeftRadius="6dip"
        android:topRightRadius="6dip"/>
</shape>

app_list_corner_round_bottom

[html]

復制代碼 代碼如下:

<SPAN style="COLOR: #333333"><?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient android:startColor="#BFEEFF" 
        android:endColor="#40B9FF" 
        android:angle="270"/>
    <corners android:bottomLeftRadius="6dip"
        android:bottomRightRadius="6dip" />
</shape> </SPAN>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient android:startColor="#BFEEFF"
        android:endColor="#40B9FF"
        android:angle="270"/>
    <corners android:bottomLeftRadius="6dip"
        android:bottomRightRadius="6dip" />
</shape>


app_list_corner_shape
[html]
復制代碼 代碼如下:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient android:startColor="#BFEEFF" 
        android:endColor="#40B9FF" 
        android:angle="270"/>
</shape> 

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient android:startColor="#BFEEFF"
        android:endColor="#40B9FF"
        android:angle="270"/>
</shape>


寫好了之后,就可以在你的代碼中直接像listview一樣調用。

發表評論 共有條評論
用戶名: 密碼:
驗證碼: 匿名發表
主站蜘蛛池模板: 日本黄色一级片视频 | 国产成人久久 | 91av在线不卡| 精品96久久久久久中文字幕无 | 在线免费91| 国产拍揄自揄精品视频麻豆 | 欧美成人免费在线观看 | 欧美美女黄色网 | 国内精品一区二区 | 91秦先生艺校小琴 | 亚洲欧洲中文日韩 | 蜜桃做爰免费网站 | av在线成人 | 亚洲一级黄色片子 | 99re视频| 91文字幕巨乱亚洲香蕉 | 久久97精品 | 欧美精品一区久久 | 污网站在线浏览 | 国产三级在线观看 | 国产精品日韩欧美一区二区三区 | 日本亚洲一区 | 婷婷色国产偷v国产偷v小说 | www.啪啪| 国产成人av一区二区 | 五月婷婷激情 | 欧美一级二级视频 | 日日干天天操 | 欧美日韩精品区 | 国产日韩精品视频 | 国产一区二区三区四区五区加勒比 | av免费播放 | 日韩欧美国产一区二区 | 欧美lesbianxxxxhd视频社区 | 伊人超碰 | 操夜夜| av片免费 | 久久久蜜桃视频 | 久久国产精品99久久久久久老狼 | 国产一区二区三区视频在线观看 | 午夜激情电影在线 |