blob: 6348148fdafe935581641a11d9baa0a92e4d711a [file] [log] [blame]
/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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 com.android.documentsui;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.widget.ImageView;
/**
* Ensures that grid thumbnails are always square.
*/
public class GridItemThumbnail extends ImageView {
public GridItemThumbnail(Context context) {
super(context);
}
public GridItemThumbnail(Context context, AttributeSet attrs) {
super(context, attrs);
}
public GridItemThumbnail(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
TypedArray ta = context.obtainStyledAttributes(R.styleable.GridItem);
ColorStateList color = ta.getColorStateList(R.styleable.GridItem_gridItemTint);
ta.recycle();
setImageTintList(color);
}
@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// Grid layout uses item width to figure out the number of columns, then dynamically fits
// rows into the view. The upshot of this is that changing the item width will mess up the
// grid layout - so to make the items square, throw out the height and use the width for
// both dimensions. The grid layout will correctly adjust the row height.
//
// Note that this code will need to be changed if the layout manager's orientation is
// changed from VERTICAL to HORIZONTAL.
super.onMeasure(widthMeasureSpec, widthMeasureSpec);
}
}