+/* ownCloud Android client application
+ * Copyright (C) 2012 Bartek Przybylski
+ * Copyright (C) 2012-2015 ownCloud Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package com.owncloud.android.ui;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.util.AttributeSet;
+import android.widget.ListView;
+
+/**
+ * ListView allowing to specify the position of an item that should be centered in the visible area, if possible.
+ *
+ * The cleanest way I found to overcome the problem due to getHeight() returns 0 until the view is really drawn.
+ *
+ * @author David A. Velasco
+ */
+public class ExtendedListView extends ListView {
+
+ private int mPositionToSetAndCenter = 0;
+
+ public ExtendedListView(Context context) {
+ super(context);
+ }
+
+ public ExtendedListView(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ }
+
+ public ExtendedListView(Context context, AttributeSet attrs, int defStyle) {
+ super(context, attrs, defStyle);
+ }
+
+ /**
+ * {@inheritDoc}
+ *
+ *
+ */
+ @Override
+ protected void onDraw (Canvas canvas) {
+ super.onDraw(canvas);
+ if (mPositionToSetAndCenter > 0) {
+ this.setSelectionFromTop(mPositionToSetAndCenter, getHeight() / 2);
+ mPositionToSetAndCenter = 0;
+ }
+ }
+
+ /**
+ * Public method to set the position of the item that should be centered in the visible area of the view.
+ *
+ * The position is saved here and checked in onDraw().
+ *
+ * @param position Position (in the list of items) of the item to center in the visible area.
+ */
+ public void setAndCenterSelection(int position) {
+ mPositionToSetAndCenter = position;
+ }
+
+}
\ No newline at end of file
projects / pub / Android / ownCloud.git / commitdiff