android開發之方形圓角listview代碼分享

先看：

首先，你得寫一個類我們命名為CornerListView

[java]

複製代碼 代碼如下:/**
* 圓角ListView樣本
* @Description: 圓角ListView樣本
* @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樣本
* @Description: 圓角ListView樣本
* @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]

複製代碼 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]

複製代碼 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]

複製代碼 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] 複製代碼 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>

寫好了之後，就可以在你的代碼中直接像listview一樣調用。