Java Code Examples for android.widget.ListAdapter#getItem()

/** Taps the specified preference displayed by the provided Activity. */
@FixWhenMinSdkVersion(11)
@SuppressWarnings("deprecation")
public static void tapPreference(PreferenceActivity activity, Preference preference) {
  // IMPLEMENTATION NOTE: There's no obvious way to find out which View corresponds to the
  // preference because the Preference list in the adapter is flattened, whereas the View
  // hierarchy in the ListView is not.
  // Thus, we go for the Reflection-based invocation of Preference.performClick() which is as
  // close to the invocation stack of a normal tap as it gets.

  // Only perform the click if the preference is in the adapter to catch cases where the
  // preference is not part of the PreferenceActivity for some reason.
  ListView listView = activity.getListView();
  ListAdapter listAdapter = listView.getAdapter();
  for (int i = 0, len = listAdapter.getCount(); i < len; i++) {
    if (listAdapter.getItem(i) == preference) {
      invokePreferencePerformClickOnMainThread(preference, activity.getPreferenceScreen());
      return;
    }
  }
  throw new IllegalArgumentException("Preference " + preference + " not in list");
}
 

@Override
public void onPause() {
	super.onPause();
	SharedPreferences.Editor editor = getSharedPreferences(PREFSFILE, 0).edit();
	editor.putBoolean(ALWAYS_GOOGLE_PLAY,
			((CheckBox) findViewById(R.id.always_gplay)).isChecked());
	if (template != null) {
		editor.putLong(TEMPLATEID, template.id);
	}
	ListAdapter adapter = getListAdapter();
	int count = adapter.getCount();
	for (int i = 0; i < count; i++) {
		SortablePackageInfo spi = (SortablePackageInfo) adapter.getItem(i);
		editor.putBoolean(SELECTED + "." + spi.packageName, spi.selected);
	}
	editor.commit();
}
 

/**
 * Share with the world.
 */
private void doStumble() {
	ListAdapter adapter = getListAdapter();
	int count = adapter.getCount();
	ArrayList<String> collect = new ArrayList<String>(); 
	for (int i = 0; i < count; i++) {
		SortablePackageInfo spi = (SortablePackageInfo) adapter.getItem(i);
		if (spi.selected) {
			collect.add(spi.packageName);
		}
	}
	
	Collections.shuffle(collect);
	StringBuilder sb = new StringBuilder();
	for (int i=0;i<collect.size();i++) {
		if (sb.length()>0) {
			sb.append(",");
		}
		sb.append(collect.get(i));
		if (sb.length()>200) {
			break; // prevent the url from growing overly large. 
		}
	}
	openUri(this,Uri.parse(getString(R.string.url_browse,sb.toString())));
}
 

/**
 * Check if at least one app is selected. Pop up a toast if none is selected.
 * 
 * @return true if no app is selected.
 */
public boolean isNothingSelected() {
	ListAdapter adapter = getListAdapter();
	if (adapter != null) {
		int count = adapter.getCount();
		for (int i = 0; i < count; i++) {
			SortablePackageInfo spi = (SortablePackageInfo) adapter.getItem(i);
			if (spi.selected) {
				return false;
			}
		}
	}
	Toast.makeText(this, R.string.msg_warn_nothing_selected, Toast.LENGTH_LONG)
			.show();
	return true;
}
 

/**
 * 
 * @param adapter
 *          The listadapter (containing the list of apps) to control.
 */
public TagSelectionListener(ListAdapter adapter) {
	this.adapter = adapter;
	int count = adapter.getCount();
	Vector<String> collect = new Vector<String>();
	for (int i = 0; i < count; i++) {
		SortablePackageInfo spi = (SortablePackageInfo) adapter.getItem(i);
		String[] tags = MainActivity.noNull(spi.tags).split(",");
		for (String tag : tags) {
			String tmp = tag.trim();
			if (tmp.length() > 0 && !collect.contains(tmp)) {
				collect.add(tmp);
			}
		}
	}
	items = collect.toArray(new String[0]);
	states = new boolean[items.length];
	Arrays.sort(items);
}
 

/**
 * Get the data item associated with the specified position in the data set.
 *
 * @param position Position of the item whose data we want
 */
@Override
public Object getItem(int position) {
    for (ListAdapter piece : pieces) {
        int size = piece.getCount();

        if (position < size) {
            return (piece.getItem(position));
        }

        position -= size;
    }

    return (null);
}
 

public Object getItem(int position) {
    int size;
    for (Iterator i$ = this.getPieces().iterator(); i$.hasNext(); position -= size) {
        ListAdapter piece = (ListAdapter) i$.next();
        size = piece.getCount();
        if (position < size) {
            return piece.getItem(position);
        }
    }

    return null;
}
 

/**
 * Get the data item associated with the specified
 * position in the data set.
 *
 * @param position
 *          Position of the item whose data we want
 */
@Override
public Object getItem(int position) {
    for (ListAdapter piece : getPieces()) {
        int size=piece.getCount();

        if (position < size) {
            return(piece.getItem(position));
        }

        position-=size;
    }

    return(null);
}
 

/**
 * Get the data item associated with the specified position in the data set.
 * @param position Position of the item whose data we want
 */
public Object getItem(int position) {
	for (ListAdapter piece : pieces) {
		int size = piece.getCount();

		if (position < size) {
			return (piece.getItem(position));
		}

		position -= size;
	}

	return (null);
}
 

private Preference getPreferenceFromMenuInfo(ContextMenuInfo menuInfo) {
    if (menuInfo != null) {
        if (menuInfo instanceof AdapterContextMenuInfo) {
            AdapterContextMenuInfo adapterMenuInfo = (AdapterContextMenuInfo) menuInfo;
            PreferenceScreen screen = getPreferenceScreen();
            ListAdapter root = screen.getRootAdapter();
            Object item = root.getItem(adapterMenuInfo.position);
            return (Preference) item;
        }
    }
    return null;
}
 

/**
 * Get the data item associated with the specified position in the data set.
 *
 * @param position Position of the item whose data we want
 */
public Object getItem(int position) {
    for (ListAdapter piece : pieces) {
        int size = piece.getCount();

        if (position < size) {
            return piece.getItem(position);
        }

        position -= size;
    }

    return null;
}
 

@Override
public void onItemClick(ListAdapter parent, View view, int position, long id) {
    // Utils.startHeroDetailActivity(this.getActivity(),
    // (HeroDetailItem) parent.getItemAtPosition(position));
    final Object cItem = parent.getItem(position);
    if (cItem instanceof ItemsItem) {
        Utils.startItemsDetailActivity(this.getActivity(),
                (ItemsItem) cItem);
    }
}
 

@Test
public void testReorderAccounts() {
  accountDb.add(
      "first", "7777777777777777", OtpType.HOTP, null, null, AccountDb.GOOGLE_ISSUER_NAME);
  accountDb.add("second", "6666666666666666", OtpType.TOTP, null, null, null);
  accountDb.add("third", "5555555555555555", OtpType.TOTP, null, null, "Yahoo");

  activityTestRule.launchActivity(null);

  EmptySpaceClickableDragSortListView userList =
      activityTestRule.getActivity().findViewById(R.id.user_list);
  View firstView = userList.getChildAt(0);
  View thirdView = userList.getChildAt(2);
  View firstDragHandle = firstView.findViewById(R.id.user_row_drag_handle);
  View thirdDragHandle = thirdView.findViewById(R.id.user_row_drag_handle);
  int dragHandleWidth = firstDragHandle.getWidth();
  int dragHandleHeight = firstDragHandle.getHeight();
  int[] firstDragHandleLocation = new int[2];
  int[] thirdDragHandleLocation = new int[2];
  firstDragHandle.getLocationOnScreen(firstDragHandleLocation);
  thirdDragHandle.getLocationOnScreen(thirdDragHandleLocation);
  float fromX = firstDragHandleLocation[0] + (dragHandleWidth / 2.0f);
  float fromY = firstDragHandleLocation[1] + (dragHandleHeight / 2.0f);
  float toX = thirdDragHandleLocation[0] + (dragHandleWidth / 2.0f);
  float toY = thirdDragHandleLocation[1] + (dragHandleHeight / 2.0f);

  onView(equalTo(firstView))
      .perform(longClick())
      .perform(
          new GeneralSwipeAction(
              Swipe.SLOW,
              (view) -> {
                return new float[] {fromX, fromY};
              },
              (view) -> {
                return new float[] {toX, toY};
              },
              Press.FINGER));

  ListAdapter listAdapter = userList.getAdapter();
  PinInfo firstPinInfo = (PinInfo) listAdapter.getItem(0);
  PinInfo secondPinInfo = (PinInfo) listAdapter.getItem(1);
  PinInfo thirdPinInfo = (PinInfo) listAdapter.getItem(2);
  assertThat(firstPinInfo.getIndex().getName()).isEqualTo("second");
  assertThat(secondPinInfo.getIndex().getName()).isEqualTo("third");
  assertThat(thirdPinInfo.getIndex().getName()).isEqualTo("first");
}
 

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    ListAdapter adapter = appListFragment.getListAdapter();
    AppEntry appEntry = (AppEntry) adapter.getItem(selectedItem);
    if (appEntry == null) {
        Toast.makeText(this, R.string.error_no_app_entry, Toast.LENGTH_SHORT).show();
        return true;
    }
    Intent intent = new Intent(this, WebViewActivity.class);
    intent.putExtra(Intent.EXTRA_TEXT, appEntry.getLabel());
    switch (item.getItemId()) {
        case android.R.id.home:
            setResult(RESULT_CANCELED);
            finish();
            return true;
        case R.id.details:
            showDetailView(appEntry, intent);
            return true;
        case R.id.generate_pin:
            generatePin(appEntry, intent);
            return true;
        case R.id.save:
            saveCertificate(appEntry, intent);
            return true;
        case R.id.virustotal:
            virustotal(appEntry, intent);
            return true;
        case R.id.by_apk_hash:
            byApkHash(appEntry, intent);
            return true;
        case R.id.by_package_name:
            byPackageName(appEntry, intent);
            return true;
        case R.id.by_signing_certificate:
            bySigningCertificate(appEntry, intent);
            return true;
        case R.id.action_settings:
            return true;
    }
    return super.onOptionsItemSelected(item);
}
 

/**
 * Construct what is to be shared/copied to the clipboard
 * 
 * @return the output for sharing.
 */
private CharSequence buildOutput() {
	if (template == null) {
		return getString(R.string.msg_error_no_templates);
	}

	StringBuilder ret = new StringBuilder();
	DateFormat df = DateFormat.getDateTimeInstance();
	boolean alwaysGP = ((CheckBox) findViewById(R.id.always_gplay)).isChecked();
	ListAdapter adapter = getListAdapter();
	int count = adapter.getCount();

	String now = java.text.DateFormat.getDateTimeInstance().format(
			Calendar.getInstance().getTime());
	int selected = 0;

	for (int i = 0; i < count; i++) {
		SortablePackageInfo spi = (SortablePackageInfo) adapter.getItem(i);
		if (spi.selected) {
			selected++;
			String tmp = spi.installer;
			if (alwaysGP) {
				tmp = "com.google.vending";
			}
			String firstInstalled = df.format(new Date(spi.firstInstalled));
			String lastUpdated = df.format(new Date(spi.lastUpdated));
			String sourceLink = createSourceLink(tmp, spi.packageName);
			String tmpl = template.item.replace("${comment}", noNull(spi.comment))
					.replace("${tags}",noNull(spi.tags))
					.replace("${packagename}", noNull(spi.packageName))
					.replace("${displayname}", noNull(spi.displayName))
					.replace("${source}", noNull(sourceLink))
					.replace("${versioncode}", "" + spi.versionCode)
					.replace("${targetsdk}", "" + spi.targetsdk)
					.replace("${version}", noNull(spi.version))
					.replace("${rating}", "" + spi.rating)
					.replace("${uid}", "" + spi.uid)
					.replace("${firstinstalled}", firstInstalled)
					.replace("${lastupdated}", lastUpdated)
					.replace("${datadir}", noNull(spi.dataDir))
					.replace("${marketid}", noNull(spi.installer));
			ret.append(tmpl);
		}
	}
	ret.insert(
			0,
			template.header.replace("${now}", now).replace("${count}",
					"" + selected));
	ret.append(template.footer.replace("${now}", now).replace("${count}",
			"" + selected));
	return ret;
}