android.widget.AdapterView#getItemAtPosition ( )源码实例Demo

public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
    if (position >= 0) {
        //Get current cursor
        Cursor c = (Cursor) parent.getItemAtPosition(position);
        int type = c.getInt(COLUMN_PHONE_TYPE);
        String phone = c.getString(COLUMN_PHONE_NUMBER);
        String label = null;
        //Custom type? Then get the custom label
        if (type == Phone.TYPE_CUSTOM) {
            label = c.getString(COLUMN_PHONE_LABEL);
        }
        //Get the readable string
        String numberType = (String) Phone.getTypeLabel(getResources(), type, label);
        String text = numberType + ": " + phone;
        mPhone.setText(text);
    }
}
 

@Override
public void onItemClick(AdapterView<?> adapterView, View arg1, int position, long arg3)
{
	Object selectedObject = adapterView.getItemAtPosition(position);
	if (selectedObject instanceof File)
	{
		if (actionMode == null)
		{
			File selectedFile = (File) selectedObject;
			if (selectedFile.isDirectory())
				navigateTo(selectedFile);
			else 
				openFile(selectedFile);
		}
		else
		{
			toggleFileSelected((File) selectedObject);
		}			
	}
}
 

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    mSearchLocalPage.clearFocus(); // otherwise we have to click "back" twice

    File data = (File) parent.getItemAtPosition(position);
    if(data == null) { // header is present, start config tool
        switch (position) {
            case 0: // Watch folders
                showFolderSettingsDialog();
                break;
            case 1: // Download archive
                downloadArchive();
                break;
        }
    } else {
        ManPageDialogFragment mpdf = ManPageDialogFragment.newInstance(data.getName(), data.getPath());
        getFragmentManager()
                .beginTransaction()
                .addToBackStack("PageFromLocalArchive")
                .setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN)
                .replace(R.id.replacer, mpdf)
                .commit();
    }
}
 

@Override
public boolean onItemLongClick(final AdapterView<?> parent,
        final View view, final int position, final long id) {
    final Status s = (Status) parent.getItemAtPosition(position);
    showPopup(view, s);
    return true;
}
 

@Override
protected void realOnItemClick(AdapterView<?> parent, View view, int position, long id)
{
	News news = (News) parent.getItemAtPosition(position);
	Intent intent = new Intent();
	intent.setClass(this, BaiduNewsDetailActivity.class);
	intent.putExtra("news_title", news.getTitle());
	intent.putExtra("news_url", news.getUrl());

	startActivity(intent);
}
 

@Override
public void onItemSelected(final AdapterView<?> parent, final View view, final int position,
                           final long id) {
    final Helper helper = (Helper) parent.getItemAtPosition(position);
    if (helper != TrivialBilling.getHelper()) {
        TrivialBilling.setHelper(helper);
        startActivity(new Intent(TrivialActivity.this, LauncherActivity.class));
        finish();
    }
}
 

@Override
public Iterable<AdaptedData> getDataInAdapterView(AdapterView<? extends Adapter> adapterView) {
  List<AdaptedData> datas = Lists.newArrayList();
  for (int i = 0; i < adapterView.getCount(); i++) {
    int position = i;
    Object dataAtPosition = adapterView.getItemAtPosition(position);
    datas.add(
        new AdaptedData.Builder()
            .withDataFunction(new StandardDataFunction(dataAtPosition, position))
            .withOpaqueToken(position)
            .build());
  }
  return datas;
}
 

@Override
protected void realOnItemClick(AdapterView<?> parent, View view, int position, long id)
{
	AlbumInfo albumInfo = (AlbumInfo) parent.getItemAtPosition(position);
	Intent intent = new Intent(getContext(), ImageGridActivity.class);
	intent.putExtra(RockyIntent.EXTRA_ALBUM, albumInfo);
	startActivity(intent);
}
 

@Override
public void onItemClick(AdapterView<?> adapter, View view, int position, long id) {
	LinphoneContact contact = (LinphoneContact) adapter.getItemAtPosition(position);
	if (editOnClick) {
		editConsumed = true;
		LinphoneActivity.instance().editContact(contact, sipAddressToAdd);
	} else {
		lastKnownPosition = contactsList.getFirstVisiblePosition();
		LinphoneActivity.instance().displayContact(contact, onlyDisplayChatAddress);
	}
}
 

@Override
public void onItemSelected(final AdapterView<?> parent, final View view, final int pos,
        final long id) {
    final LocaleRenderer locale = (LocaleRenderer)parent.getItemAtPosition(pos);
    if (locale.isMoreLanguages()) {
        PreferenceActivity preferenceActivity = (PreferenceActivity)getActivity();
        preferenceActivity.startPreferenceFragment(new UserDictionaryLocalePicker(), true);
    } else {
        mContents.updateLocale(locale.getLocaleString());
    }
}
 

@Override
   public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id)
   {
AppInfo app = (AppInfo) parent.getItemAtPosition(position);
Intent intent = new Intent("android.settings.APPLICATION_DETAILS_SETTINGS");
String pkg = "com.android.settings";
String cls = "com.android.settings.applications.InstalledAppDetails";
intent.setComponent(new ComponentName(pkg, cls));
intent.setData(Uri.parse("package:" + app.packageName));//指明要打开的应用
startActivity(intent);// 用普通的方法去打开界面
return true;// 消化掉事件
   }
 

@Override
public void onItemClick(AdapterView<?> parent, View view,
   int position, long id) 
{
    Contact c = (Contact) parent.getItemAtPosition(position);
   listener.onContactSelected(c.id); // pass selection to MainActivity
}
 

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    ActivityInfo info = (ActivityInfo) parent.getItemAtPosition(position);
    Intent intent = new Intent();
    intent.setComponent(new ComponentName(this, info.name));
    startActivity(intent);
}
 

@Override
public void onItemClick(AdapterView<?> adapterView, View view,
                        int position, long id) {
    Place p = (Place) adapterView.getItemAtPosition(position);
    doPlace(p);
}
 

@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
    SpkListItem item = (SpkListItem) adapterView.getItemAtPosition(position);
    installPackage(item.getFile());
}
 

@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
    final LanguageConfig selectedLanguage = (LanguageConfig) parent.getItemAtPosition(position);
    initService(selectedLanguage);
}
 

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
	// TODO Auto-generated method stub
	AppInfo mAppInfo = (AppInfo)arg0.getItemAtPosition(arg2);
	launch_app(mAppInfo);
}
 

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    NavigationEntry entry = (NavigationEntry) parent.getItemAtPosition(position);
    mNavigationController.goToNavigationIndex(entry.getIndex());
    dismiss();
}
 

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    ScreenTimeout st = (ScreenTimeout) parent.getItemAtPosition(position);
    setScreenOffTimeout(st.mMillis);
}
 

@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
    final LanguageConfig selectedLanguage = (LanguageConfig) parent.getItemAtPosition(position);
    initService(selectedLanguage);
}