我有這樣的代碼在Android應用程序的其中一個選項卡沒有合適的構造: -錯誤 - 發現ArrayAdapter
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
public class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
String str[]={"Arun","Mathev","Vishnu","Vishal","Arjun",
"Arul","Balaji","Babu","Boopathy","Godwin","Nagaraj"};
AutoCompleteTextView t1 = (AutoCompleteTextView)
rootView.findViewById(R.id.autoCompleteTextView1);
ArrayAdapter<String> adp=new ArrayAdapter<String>(this,
android.R.layout.simple_dropdown_item_1line,str);
t1.setThreshold(1);
t1.setAdapter(adp);
return rootView;
和下面一行用紅色下劃線,因此引起的錯誤
(這一點,android.R.layout.simple_dropdown_item_1line,STR)
我試圖編輯它,但問題仍然存在
getActivity()不是最佳解決方案,因爲如果Fragment未附加,它將產生異常編輯:-( – Kelevandos
@Kelevandos你是對的,但在某些情況下,我們仍然可以使用'getActivity()' –
與我合作謝謝 – mh9