@Override
public void setAdapter(ListAdapter adapter) {
// make sure XListViewFooter is the last footer view, and only add once.
if (mIsFooterReady == false) {
mIsFooterReady = true;
addFooterView(mFooterView);
}
// zzw
if (adapter instanceof AdpCommunityListView) {
mCommunityAdapter = (AdpCommunityListView) adapter;
((AdpCommunityListView) adapter).setHorizontalSpacing(horizontalSpacing);
((AdpCommunityListView) adapter).setColumnsNum(numColumns);
((AdpCommunityListView) adapter).setColumnsWidth(columnsWidth);
}
super.setAdapter(adapter);
}
/** 该函数确定图片存放在View里面的范围 */
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
Log.d("zzw", "onMeasure:" + numColumns + " " + horizontalSpacing);
if (numColumns != 0) {
columnsWidth =
(getMeasuredWidth()
- getPaddingLeft()
- getPaddingRight()
- 2 * getResources().getDimensionPixelOffset(R.dimen.marginleft)
- 2 * getResources().getDimensionPixelOffset(R.dimen.item_border)
- 2 * getResources().getDimensionPixelOffset(R.dimen.head_width)
- numColumns * 2 * horizontalSpacing)
/ numColumns;
Log.d("zzw", "onMeasure:" + columnsWidth);
if (mCommunityAdapter != null) {
((AdpCommunityListView) mCommunityAdapter).setColumnsWidth(columnsWidth);
}
}
}