Android dynamic auto-complete - minor fix - code attached
I am trying to implement a dynamic autocomplete widget in android. I am done with the major functionalities and the autocompletion implemented is for youtube video search.
When I start typing a letter or two, the auto-completion is not working. But when I type three letters or more it works prfect. It also works when I type two letters and hit a backspace. I do not know what is wrong with the code.
I have uploaded the code here
Experts, kindly guide me. I would be obliged if you can point out where I have gone wrong with the code.
Any help in this regard is well appreciated.
Looking forward, Regards, Rony
import org.json.JSONArray;
import org.json.JSONException;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.Editable;
import android.text.TextWatcher;
import android.widget.ArrayAdapter;
public class YoutubeAutoComplete extends Activity {
Youtube yt = new Youtube();
CustomAutoComplete myAutoComplete;
ArrayAdapter<String> adapter;
private JSONArray js;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myAutoComplete = (CustomAutoComplete) findViewById(R.id.autocomplete);
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_dropdown_item_1line);
myAutoComplete.addTextChangedListener(textWatcher);
myAutoComplete.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
TextWatcher textWatcher = new TextWatcher() {
public void onTextChanged(final CharSequence s, int start, int before,
int cou开发者_开发问答nt) {
Thread t = new Thread() {
public void run() {
try {
js = yt.GetSuggestions(s.toString()).getJSONArray(1);
messageHandler.sendEmptyMessage(0);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
t.start();
}
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
public void afterTextChanged(Editable s) {
}
};
private Handler messageHandler = new Handler() {
public void handleMessage(Message msg) {
adapter.clear();
for (int i = 0; i < js.length(); i++) {
try {
adapter.add(js.getJSONArray(i).getString(0));
System.out.println(js.getJSONArray(i).getString(0));
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
adapter.notifyDataSetChanged();
}
};
}
Take a look at completionThreshold AKA the number of characters the user must type before getting completion suggestions.
http://developer.android.com/reference/android/widget/AutoCompleteTextView.html#attr_android:completionThreshold
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