伙计们,有人帮助我我的搜索功能是正常工作的一个词,但有两个词的短语,需要一个空格,它显示没有任何ex(我的名字)。
这是我做我的上下文更改函数的部分。活动
public class Builds extends ListActivity {
private ProgressDialog pDialog;
Button b4;
EditText inputSearch;
// URL to get contacts JSON
private static String url = "http://computersolutions.comli.com/android_json.php";
// JSON Node names
private static final String TAG_CONTACTS = "contacts";
private static final String TAG_ID = "id";
private static final String TAG_NAME = "name";
private static final String TAG_EMAIL = "email";
private static final String TAG_SAMPLE = "sample";
// contacts JSONArray
JSONArray contacts = null;
// Hash map for ListView
ArrayList<HashMap<String, String>> contactList =
new ArrayList<HashMap<String, String>>();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.builds);
b4 = (Button) findViewById(R.id.btnReturn);
b4.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent i = new Intent(getApplicationContext(),
UserPage.class);
startActivity(i);
finish();
}
});
// Calling async task to get JSON
new GetContacts().execute();
}
/*
* Async task class to get JSON by making HTTP call
*/
private class GetContacts extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
pDialog = new ProgressDialog(Builds.this);
pDialog.setMessage("Connecting to web server...");
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Void doInBackground(Void... arg0) {
// Creating service handler class instance
ServiceHandler sh = new ServiceHandler();
// Making a request to URL and getting response
String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);
Log.d("Response: ", "> " + jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
contacts = jsonObj.getJSONArray(TAG_CONTACTS);
// looping through All Contacts
for (int i = 0; i < contacts.length(); i++) {
JSONObject c = contacts.getJSONObject(i);
String id = c.getString(TAG_ID);
String name = c.getString(TAG_NAME);
String email = c.getString(TAG_EMAIL);
String sample = c.getString(TAG_SAMPLE);
// temporary HashMap for single contact
HashMap<String, String> contact =
new HashMap<String, String>();
// adding each child node to HashMap key => value
contact.put(TAG_ID, id);
contact.put(TAG_NAME, name);
contact.put(TAG_EMAIL, email);
contact.put(TAG_SAMPLE, sample);
// adding contact to contact list
contactList.add(contact);
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.e("ServiceHandler", "Couldn't get any data from the URL!");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (pDialog.isShowing())
pDialog.dismiss();
// Updating parsed JSON data into ListView
final ListAdapter adapter = new SimpleAdapter(Builds.this, contactList,
R.layout.list_item2,
new String[] { TAG_NAME, TAG_EMAIL,TAG_ID,TAG_SAMPLE},
new int[] {R.id.name, R.id.email,R.id.id ,R.id.sample}
);
inputSearch = (EditText) findViewById(R.id.inputSearch);
setListAdapter(adapter);
文本监视器
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,int count) {
// When user changed the Text
TextView txt;
txt=(TextView)findViewById(R.id.pprice);
String a = inputSearch.getText().toString();
txt.setText("Results for "+a+":");
String st = s.toString().trim();
((SimpleAdapter) adapter).getFilter().filter(st);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
}
}
}
我认为你正在使用的trim()函数从你想要搜索的字符串中删除空格。因此,尝试删除trim()函数,看看它是否工作。