不滚动的listView(解决带head foot 计算)

package test.test; 

import android.content.Context; 
import android.util.AttributeSet; 
import android.util.Log; 
import android.view.View; 
import android.widget.ListAdapter; 
import android.widget.ListView; 

/** 
* 不滚动的listView 即全部显示 
* 
* @author david 
* @deprecated 
* @see ComponentUtils.setListViewHeightBasedOnChildren 
*/ 

@Deprecated 
public class NoScrollListView extends ListView { 

public NoScrollListView(Context paramContext) { 
super(paramContext); 
} 

public NoScrollListView(Context paramContext, AttributeSet paramAttributeSet) { 
super(paramContext, paramAttributeSet); 
} 

public NoScrollListView(Context paramContext, 
AttributeSet paramAttributeSet, int paramInt) { 
super(paramContext, paramAttributeSet, paramInt); 
} 

@Override 
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 

super.onMeasure(widthMeasureSpec, 
MeasureSpec.makeMeasureSpec(MeasureSpec.UNSPECIFIED, 0)); 

ListAdapter listAdapter = getAdapter(); 

if (listAdapter == null) { 
return; 
} 
int totalHeight = 0; 
int height; 

int footCount = getFooterViewsCount(); 
int headCount = getHeaderViewsCount(); 
int adapterCount = listAdapter.getCount(); 
int childCount = getChildCount(); 
Log.e("~~~~", "getChildCount():" + childCount + ",getAdapterCount():" 
+ adapterCount); 
Log.e("~~~~", "footCount:" + footCount + ",headCount:" + headCount); 
for (int j = 0; j < childCount; j++) { 
Log.e("all child ", "child :" + j + ",height:" 
+ getChildAt(j).getHeight()); 
} 
for (int i = 0; i < adapterCount; i++) { // listAdapter.getCount()返回数据项的数目 
View listItem = null; 
if (childCount > 0) // 只有childCount 存在时候才使用已有的子件直接计算 
{ 

if (footCount > 0 && i >= adapterCount - footCount) {// 获取listItem 
// footer部分 
listItem = getChildAt((i - adapterCount) + childCount); 
} else if (i >= childCount - footCount) 
listItem = getChildAt(i + headCount + footCount); // 在listView内foothead的子项index都是前面的 
else 
listItem = getChildAt(i); 
} 
height = 0; 
if (listItem == null) { 
listItem = listAdapter.getView(i, null, this); 
try { 
listItem.measure(MeasureSpec.UNSPECIFIED, 
MeasureSpec.UNSPECIFIED); // 计算子项View 的宽高 
height = listItem.getMeasuredHeight(); 
} catch (Throwable t) { 
t.printStackTrace(); 
} 
} else 
height = listItem.getHeight(); 

Log.v("TAG", "listAdapter row " + i + "height:" + height); 

totalHeight += height; // 统计所有子项的总高度 

} 
// 总高度 每个item总高度 + 子项间隔总和 +头部缩进 + 底部缩进 
totalHeight = totalHeight 
+ (getDividerHeight() * (listAdapter.getCount() - 1)) 
+ getPaddingBottom() + getPaddingTop(); 
// Log.v(TAG, "params.height" + params.height); 
// // 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 

setMeasuredDimension(getMeasuredWidth(), totalHeight); 

} 

}