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先看效果图：
首先，你得写一个类我们命名为CornerListView
[java]
代码如下：
/**
* 圆角ListView示例
* @Description: 圆角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);
}
}
/**
* 圆角ListView示例
* @Description: 圆角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]
代码如下：
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]
代码如下：
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]
代码如下：
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]
代码如下：
?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
写好了之后，就可以在你的代码中直接像listview一样调用。
来源:https://www.tulaoshi.com/n/20160219/1590793.html
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