src/com/android/camera/ui/OneRowGridView.java

/*
 * Copyright (C) 2011 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.camera.ui;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.GridView;

public class OneRowGridView extends GridView {
    private int mInternalRequestedColumnWidth;
    public OneRowGridView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public void setColumnWidth(int columnWidth) {
        super.setColumnWidth(columnWidth);
        if (mInternalRequestedColumnWidth != columnWidth) {
            mInternalRequestedColumnWidth = columnWidth;
            requestLayout();
        }
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        if (mInternalRequestedColumnWidth != 0) {
            int n = (getAdapter() == null) ? 0 : getAdapter().getCount();
            int size = mInternalRequestedColumnWidth * n;
            widthMeasureSpec = MeasureSpec.makeMeasureSpec(size, MeasureSpec.EXACTLY);
        }
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }
}