我想问一下,为什么我的代码在设备上运行时不起作用,但是当我在模拟器上运行时像Genymotion一样,它的工作完美…
有人在这个link上这样说过：除非在某些情况下,你才能在super.onCreate()之后调用Activity超类上的方法.请推迟你的promptsView初始化,直到调用super.onCreate()之后.
我仍然没有得到它,请告诉我你是否有同样的问题..
无论如何,如果我的解释不好,我很抱歉..
public class DestinationListAdapter extends ArrayAdapter<DestinationModel> {
Context context;
int layoutResourceId;
List<DestinationModel> data = Collections.emptyList();
public DestinationListAdapter(Context context,int layoutResourceId,List<DestinationModel> data) {
super(context,layoutResourceId,data);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.data = data;
}
@Override
public View getView(int position,View convertView,ViewGroup parent) {
View row = convertView;
DestinationHolder holder = null;
if(row == null)
{
// Predicted Error At Line Below
LayoutInflater inflater = ((Activity)context).getLayoutInflater();
row = inflater.inflate(layoutResourceId,parent,false);
holder = new DestinationHolder();
holder.destination_id = (TextView) row.findViewById(R.id.destination_id);
holder.destination_name = (TextView) row.findViewById(R.id.destination_name);
row.setTag(holder);
}
else
{
holder = (DestinationHolder)row.getTag();
}
DestinationModel weather = data.get(position);
holder.destination_id.setText(weather.getDestination_id());
holder.destination_name.setText(weather.getDestination_name());
return row;
}
解决方法
确保何时返回&继续以前的活动
我刚加了&检查getContext()！= null
我刚加了&检查getContext()！= null
这是一个很好的例子：
在阻止之前
adapter = new ExampleAdapter(getContext()); adapter.setData(items); listView.setAdapter(adapter);
最好替换getActivity()！= null
例如：
if (getActivity()!=null){
adapter = new ExampleAdapter(getActivity());
adapter.setData(items);
listView.setAdapter(adapter);
}
