Here you can find the source of measureView(View v)
public static void measureView(View v)
//package com.java2s; /**************************************************************************** * Copyright (C) 2014 www.apkdv.com * Author: LengYue ProjectName: DvTools * * 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./* w ww . j a v a 2 s . c om*/ *****************************************************************************/ import android.view.View; import android.view.View.MeasureSpec; import android.view.ViewGroup; public class Main { public static void measureView(View v) { ViewGroup.LayoutParams p = v.getLayoutParams(); if (p == null) { p = new ViewGroup.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); } int childWidthSpec = ViewGroup.getChildMeasureSpec(0, 0 + 0, p.width); int lpHeight = p.height; int childHeightSpec; if (lpHeight > 0) { childHeightSpec = MeasureSpec.makeMeasureSpec(lpHeight, MeasureSpec.EXACTLY); } else { childHeightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); } v.measure(childWidthSpec, childHeightSpec); } }