我实现双击时遇到问题.好吧,我实现了onGestureListener,我有gestureDetector,但我不知道问题出在哪里,这是我的代码:
public class home extends TabActivity implements OnGestureListener {
/** Called when the activity is first created. */
private EditText queryText;
private ResultsAdapter m_adapter;
private ProgressDialog pd;
final Handler h = new Handler();
private TabHost mTabHost;
private ArrayList<SearchItem> sResultsArr = new ArrayList<SearchItem>();
private String queryStr;
private JSONObject searchResponse;
private GestureDetector gestureScanner;
final Runnable mUpdateResults = new Runnable() {
public void run() {
updateListUi();
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button search = …嘿各位我在这里的第一篇文章...我试着写一个自定义过滤器来过滤我的arrayadapter中的arraylist,这样当我点击按钮时我的listview被过滤了.
例如,当我点击我的按钮时
public void onClick(View arg0) {
String abc = "abc";
m_adapter.getFilter().filter(abc);
}
但是,当我点击我的按钮时,我的应用程序意外终止.这是我的arrayadapter和过滤器的代码.请帮我.
package com.ntu.rosemobile.searchlist;
public class ResultsAdapter extends ArrayAdapter<SearchItem> implements Filterable{
public ArrayList<SearchItem> subItems;
public ArrayList<SearchItem> allItems;
private LayoutInflater inflater;
private PTypeFilter filter;
public ResultsAdapter(Context context, int textViewResourceId, ArrayList<SearchItem> items) {
super(context, textViewResourceId, items);
this.subItems = items;
this.allItems = this.subItems;
inflater= LayoutInflater.from(context);
}
@Override
public Filter getFilter() {
if (filter == null){
filter = new PTypeFilter();
}
return filter;
}
//@Override
public View getView(int position, View convertView, ViewGroup …