75 lines
2.3 KiB
Java
75 lines
2.3 KiB
Java
/*
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* Copyright 2016 Hippo Seven
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.hippo.widget;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.util.AttributeSet;
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import android.widget.FrameLayout;
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import com.hippo.yorozuya.LayoutUtils;
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public class DrawerView extends FrameLayout {
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private static final int DEFAULT_MAX_WIDTH = 280;
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private static final int[] SIZE_ATTRS = new int[]{
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android.R.attr.maxWidth
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};
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private int mMaxWidth;
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public DrawerView(Context context) {
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super(context);
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init(context, null);
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}
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public DrawerView(Context context, AttributeSet attrs) {
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super(context, attrs);
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init(context, attrs);
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}
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public DrawerView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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init(context, attrs);
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}
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private void init(Context context, AttributeSet attrs) {
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TypedArray a = context.obtainStyledAttributes(attrs, SIZE_ATTRS);
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mMaxWidth = a.getDimensionPixelOffset(0, LayoutUtils.dp2pix(context, DEFAULT_MAX_WIDTH));
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a.recycle();
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}
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@Override
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protected void onMeasure(int widthSpec, int heightSpec) {
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switch (MeasureSpec.getMode(widthSpec)) {
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case MeasureSpec.EXACTLY:
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// Nothing to do
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break;
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case MeasureSpec.AT_MOST:
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widthSpec = MeasureSpec.makeMeasureSpec(
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Math.min(MeasureSpec.getSize(widthSpec), mMaxWidth), MeasureSpec.EXACTLY);
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break;
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case MeasureSpec.UNSPECIFIED:
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widthSpec = MeasureSpec.makeMeasureSpec(mMaxWidth, MeasureSpec.EXACTLY);
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break;
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}
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// Let super sort out the height
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super.onMeasure(widthSpec, heightSpec);
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}
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}
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