aboutsummaryrefslogtreecommitdiff
path: root/subsonic-android/src/net/sourceforge/subsonic/androidapp/util/SackOfViewsAdapter.java
diff options
context:
space:
mode:
Diffstat (limited to 'subsonic-android/src/net/sourceforge/subsonic/androidapp/util/SackOfViewsAdapter.java')
-rw-r--r--subsonic-android/src/net/sourceforge/subsonic/androidapp/util/SackOfViewsAdapter.java181
1 files changed, 181 insertions, 0 deletions
diff --git a/subsonic-android/src/net/sourceforge/subsonic/androidapp/util/SackOfViewsAdapter.java b/subsonic-android/src/net/sourceforge/subsonic/androidapp/util/SackOfViewsAdapter.java
new file mode 100644
index 00000000..ca825e55
--- /dev/null
+++ b/subsonic-android/src/net/sourceforge/subsonic/androidapp/util/SackOfViewsAdapter.java
@@ -0,0 +1,181 @@
+/***
+ Copyright (c) 2008-2009 CommonsWare, LLC
+ Portions (c) 2009 Google, Inc.
+
+ Licensed under the Apache License, Version 2.0 (the "License"); you may
+ not use this file except in compliance with the License. You may obtain
+ a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+package net.sourceforge.subsonic.androidapp.util;
+
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ListView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Adapter that simply returns row views from a list.
+ * <p/>
+ * If you supply a size, you must implement newView(), to
+ * create a required view. The adapter will then cache these
+ * views.
+ * <p/>
+ * If you supply a list of views in the constructor, that
+ * list will be used directly. If any elements in the list
+ * are null, then newView() will be called just for those
+ * slots.
+ * <p/>
+ * Subclasses may also wish to override areAllItemsEnabled()
+ * (default: false) and isEnabled() (default: false), if some
+ * of their rows should be selectable.
+ * <p/>
+ * It is assumed each view is unique, and therefore will not
+ * get recycled.
+ * <p/>
+ * Note that this adapter is not designed for long lists. It
+ * is more for screens that should behave like a list. This
+ * is particularly useful if you combine this with other
+ * adapters (e.g., SectionedAdapter) that might have an
+ * arbitrary number of rows, so it all appears seamless.
+ */
+public class SackOfViewsAdapter extends BaseAdapter {
+ private List<View> views = null;
+
+ /**
+ * Constructor creating an empty list of views, but with
+ * a specified count. Subclasses must override newView().
+ */
+ public SackOfViewsAdapter(int count) {
+ super();
+
+ views = new ArrayList<View>(count);
+
+ for (int i = 0; i < count; i++) {
+ views.add(null);
+ }
+ }
+
+ /**
+ * Constructor wrapping a supplied list of views.
+ * Subclasses must override newView() if any of the elements
+ * in the list are null.
+ */
+ public SackOfViewsAdapter(List<View> views) {
+ for (View view : views) {
+ view.setLayoutParams(new ListView.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
+ }
+ this.views = views;
+ }
+
+ /**
+ * 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) {
+ return (views.get(position));
+ }
+
+ /**
+ * How many items are in the data set represented by this
+ * Adapter.
+ */
+ @Override
+ public int getCount() {
+ return (views.size());
+ }
+
+ /**
+ * Returns the number of types of Views that will be
+ * created by getView().
+ */
+ @Override
+ public int getViewTypeCount() {
+ return (getCount());
+ }
+
+ /**
+ * Get the type of View that will be created by getView()
+ * for the specified item.
+ *
+ * @param position Position of the item whose data we want
+ */
+ @Override
+ public int getItemViewType(int position) {
+ return (position);
+ }
+
+ /**
+ * Are all items in this ListAdapter enabled? If yes it
+ * means all items are selectable and clickable.
+ */
+ @Override
+ public boolean areAllItemsEnabled() {
+ return (false);
+ }
+
+ /**
+ * Returns true if the item at the specified position is
+ * not a separator.
+ *
+ * @param position Position of the item whose data we want
+ */
+ @Override
+ public boolean isEnabled(int position) {
+ return (false);
+ }
+
+ /**
+ * Get a View that displays the data at the specified
+ * position in the data set.
+ *
+ * @param position Position of the item whose data we want
+ * @param convertView View to recycle, if not null
+ * @param parent ViewGroup containing the returned View
+ */
+ @Override
+ public View getView(int position, View convertView,
+ ViewGroup parent) {
+ View result = views.get(position);
+
+ if (result == null) {
+ result = newView(position, parent);
+ views.set(position, result);
+ }
+
+ return (result);
+ }
+
+ /**
+ * Get the row id associated with the specified position
+ * in the list.
+ *
+ * @param position Position of the item whose data we want
+ */
+ @Override
+ public long getItemId(int position) {
+ return (position);
+ }
+
+ /**
+ * Create a new View to go into the list at the specified
+ * position.
+ *
+ * @param position Position of the item whose data we want
+ * @param parent ViewGroup containing the returned View
+ */
+ protected View newView(int position, ViewGroup parent) {
+ throw new RuntimeException("You must override newView()!");
+ }
+}