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      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;
     25     public OneRowGridView(Context context, AttributeSet attrs) {
     26         super(context, attrs);
     27     }
     28 
     29     @Override
     30     public void setColumnWidth(int columnWidth) {
     31         super.setColumnWidth(columnWidth);
     32         if (mInternalRequestedColumnWidth != columnWidth) {
     33             mInternalRequestedColumnWidth = columnWidth;
     34             requestLayout();
     35         }
     36     }
     37 
     38     @Override
     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