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listview的getView里面返回LinearLayout,为何报错了?
====================问题描述====================
@Overridepublic View getView(int position, View convertView, ViewGroup parent) {// TODO Auto-generated method stubconvertView = null;List<Map<String, Object>> _row = listItems.get(position);LinearLayout.LayoutParams _llp = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.MATCH_PARENT);LinearLayout _ll = new LinearLayout(context);_ll.setOrientation(LinearLayout.HORIZONTAL);_ll.setLayoutParams(_llp);for(int i=0; i<_row.size(); i++) {Map<String, Object> _cell = _row.get(i);LinearLayout.LayoutParams _cellP = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.MATCH_PARENT, Float.parseFloat(_cell.get("weight").toString()));EditText _ed = new EditText(context);_ed.setText(_cell.get("value").toString());if(_cell.get("type").equals("text"))_ed.setFilters(setEditable());_ll.addView(_ed, _cellP);}return _ll;}
错误信息是:java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams cannot be cast to android.widget.AbsListView$LayoutParams
在DDMS里面也没有具体定位哪里错了,逐步调试在return那里出错了,求解?
====================解决方案1====================
LinearLayout.LayoutParams _llp = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.MATCH_PARENT);
这句代码导致的错误哦
====================解决方案2====================
因为你的这个LinearLayout是放在一个ListView中(ListView是AbsListView的子类),所以LinearLayout.setLayoutParameters()中应该放AbsListView.LayoutParameter这个类的对象。
listview的getView里面返回LinearLayout,为何报错了?
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