| /* |
| * 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 android.holo.cts; |
| |
| import com.android.cts.holo.R; |
| |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.view.ViewGroup; |
| |
| /** |
| * {@link ViewGroup} that inflates to a reference width and height. |
| */ |
| public class ReferenceViewGroup extends ViewGroup { |
| |
| private final int mWidthDp; |
| private final int mHeightDp; |
| |
| public ReferenceViewGroup(Context context) { |
| this(context, null); |
| } |
| |
| public ReferenceViewGroup(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| Resources resources = context.getResources(); |
| mWidthDp = resources.getDimensionPixelSize(R.dimen.reference_width); |
| mHeightDp = resources.getDimensionPixelSize(R.dimen.reference_height); |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| widthMeasureSpec = getMeasureSpec(LayoutParams.MATCH_PARENT, mWidthDp); |
| heightMeasureSpec = getMeasureSpec(LayoutParams.MATCH_PARENT, mHeightDp); |
| |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| View child = getChildAt(i); |
| LayoutParams params = child.getLayoutParams(); |
| int width = getMeasureSpec(params.width, mWidthDp); |
| int height = getMeasureSpec(params.height, mHeightDp); |
| child.measure(width, height); |
| } |
| } |
| |
| private int getMeasureSpec(int value, int size) { |
| if (value == LayoutParams.MATCH_PARENT) { |
| return MeasureSpec.makeMeasureSpec(size, MeasureSpec.EXACTLY); |
| } else if (value == LayoutParams.WRAP_CONTENT) { |
| return MeasureSpec.makeMeasureSpec(size, MeasureSpec.AT_MOST); |
| } else { |
| return value; |
| } |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int l, int t, int r, int b) { |
| if (!changed) { |
| return; |
| } |
| |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| View child = getChildAt(i); |
| child.layout(0, 0, child.getMeasuredWidth(), child.getMeasuredHeight()); |
| } |
| } |
| } |