1 /*
2  * Copyright (C) 2011 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.camera.ui;
18 
19 import android.content.Context;
20 import android.util.AttributeSet;
21 import android.widget.GridView;
22 
23 public class OneRowGridView extends GridView {
24     private int mInternalRequestedColumnWidth;
OneRowGridView(Context context, AttributeSet attrs)25     public OneRowGridView(Context context, AttributeSet attrs) {
26         super(context, attrs);
27     }
28 
29     @Override
setColumnWidth(int columnWidth)30     public void setColumnWidth(int columnWidth) {
31         super.setColumnWidth(columnWidth);
32         if (mInternalRequestedColumnWidth != columnWidth) {
33             mInternalRequestedColumnWidth = columnWidth;
34             requestLayout();
35         }
36     }
37 
38     @Override
onMeasure(int widthMeasureSpec, int heightMeasureSpec)39     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
40         if (mInternalRequestedColumnWidth != 0) {
41             int n = (getAdapter() == null) ? 0 : getAdapter().getCount();
42             int size = mInternalRequestedColumnWidth * n;
43             widthMeasureSpec = MeasureSpec.makeMeasureSpec(size, MeasureSpec.EXACTLY);
44         }
45         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
46     }
47 }
48