问题描述
我想在回收者视图中实现搜索,在该视图中,我将Object用作列表中的类,因为我将原生广告嵌入其中。
我以此为参考在回收者视图Reference中嵌入广告:-
@Override
public Filter getFilter() {
return new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
String key = constraint.toString();
if (key.isEmpty()){
mDataFiltered = mData;
}else{
List<Object> isFiltered = new ArrayList<>();
for ( Object n : mData){
if (((News) n).getName().toLowerCase().contains(key.toLowerCase())){ //throw error at this line
isFiltered.add(n);
}
}
mDataFiltered = isFiltered;
}
FilterResults filterResults = new FilterResults();
filterResults.values = mDataFiltered;
return filterResults;
}
@Override
protected void publishResults(CharSequence constraint,FilterResults results) {
mDataFiltered = (List<Object>) results.values;
notifyDataSetChanged();
}
};
}
我尝试将Object强制转换为模型类,但是它给出了此错误
java.lang.classCastException: com.google.android.gms.internal.ads.zzafx cannot be cast to com.jamuitoday.model.News
at com.jamuitoday.adapter.RAdapter$1.performFiltering(RAdapter.java:211)
at android.widget.Filter$RequestHandler.handleMessage(Filter.java:236)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.os.HandlerThread.run(HandlerThread.java:67)
解决方法
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