VerticalGridView.java revision cfbb302b7a67d1633b1a68f659ed41aa71702507 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5 * in compliance with the License. You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software distributed under the License
10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11 * or implied. See the License for the specific language governing permissions and limitations under
12 * the License.
13 */
14package android.support.v17.leanback.widget;
15
16import android.content.Context;
17import android.content.res.TypedArray;
18import android.support.v17.leanback.R;
19import android.support.v7.widget.RecyclerView;
20import android.util.AttributeSet;
21
22/**
23 * A view that shows items in a vertically scrolling list. The items come from
24 * the {@link RecyclerView.Adapter} associated with this view.
25 */
26public class VerticalGridView extends BaseGridView {
27
28    public VerticalGridView(Context context) {
29        this(context, null);
30    }
31
32    public VerticalGridView(Context context, AttributeSet attrs) {
33        this(context, attrs, 0);
34    }
35
36    public VerticalGridView(Context context, AttributeSet attrs, int defStyle) {
37        super(context, attrs, defStyle);
38        mLayoutManager.setOrientation(RecyclerView.VERTICAL);
39        initAttributes(context, attrs);
40    }
41
42    protected void initAttributes(Context context, AttributeSet attrs) {
43        initBaseGridViewAttributes(context, attrs);
44        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.lbVerticalGridView);
45        setColumnWidth(a.getDimensionPixelSize(R.styleable.lbVerticalGridView_columnWidth, 0));
46        setNumColumns(a.getInt(R.styleable.lbVerticalGridView_numberOfColumns, 1));
47        a.recycle();
48    }
49
50    /**
51     * Set the number of columns.
52     */
53    public void setNumColumns(int numColumns) {
54        mLayoutManager.setNumRows(numColumns);
55        requestLayout();
56    }
57
58    /**
59     * Set the column width.
60     */
61    public void setColumnWidth(int width) {
62        mLayoutManager.setRowHeight(width);
63        requestLayout();
64    }
65}
66