フィルター可能なリストビューのチュートリアルに出くわしましたが、どのリストビューアイテムが選択されているかを判断し、トーストを表示する方法を考えていました。コードは次のとおりです。
package com.example.listview;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewStub;
import android.widget.BaseAdapter;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.ListView;
import android.widget.TextView;
public class TestFilterListView extends Activity {
FrameLayout historyContainer;
ViewStub viewStub;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.history_container);
historyContainer = (FrameLayout) findViewById(R.id.historyContainerLayout);
EditText filterEditText = (EditText) findViewById(R.id.filter_text);
filterEditText.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
historyContainer.removeAllViews();
final List<String> tempHistoryList = new ArrayList<String>();
tempHistoryList.addAll(historyList);
for(String data : historyList) {
if(data.indexOf((s.toString())) == -1) {
tempHistoryList.remove(data);
}
}
viewStub = new ViewStub(TestFilterListView.this, R.layout.history_schedule);
viewStub.setOnInflateListener(new ViewStub.OnInflateListener()
{
public void onInflate(ViewStub stub, View inflated)
{
setUIElements(inflated, tempHistoryList);
}
});
historyContainer.addView(viewStub);
viewStub.inflate();
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
setViewStub();
}
/********************************************************************************************************/
private void setViewStub()
{
historyList.add("first");
historyList.add("second");
historyList.add("third");
historyList.add("fourth");
historyList.add("fifth");
historyList.add("sixth");
historyList.add("seventh");
viewStub = new ViewStub(TestFilterListView.this, R.layout.history_schedule);
viewStub.setOnInflateListener(new ViewStub.OnInflateListener()
{
public void onInflate(ViewStub stub, View inflated)
{
setUIElements(inflated, historyList);
}
});
historyContainer.addView(viewStub);
viewStub.inflate();
}
/********************************************************************************************************/
final List<String> historyList = new ArrayList<String>();
String displayName = "";
ListView historyListView;
private void setUIElements(View v, List<String> historyLists)
{
if (v != null)
{
historyScheduleData.clear();
//historyList.clear();
historyScheduleData.addAll(historyLists);
historyListView = (ListView) findViewById(R.id.historylist);
historyListView.setAdapter(new BeatListAdapter(this));
registerForContextMenu(historyListView);
}
}
private static class BeatListAdapter extends BaseAdapter {
private LayoutInflater mInflater;
public BeatListAdapter(Context context) {
mInflater = LayoutInflater.from(context);
}
public int getCount() {
return historyScheduleData.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.history_list_view, null);
holder = new ViewHolder();
holder.historyData = (TextView) convertView
.findViewById(R.id.historytext);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.historyData.setText(historyScheduleData.get(position));
return convertView;
}
static class ViewHolder {
TextView historyData;
}
}
private static final List<String> historyScheduleData = new ArrayList<String>();
}
使うことを考えました
protected void onListItemClick(ListView l, View v, int position, long id) {
if(position == 0) {
Intent intent = new Intent(getApplicationContext(), GODoc1Activity.class);
startActivity(intent);
しかし、私がそれを実装しようとすると、それは機能しません。ここで何かが足りませんか?どうすればこれを行うことができますか?