Here you can find the source of convertValueToBoolean(CharSequence value, boolean defaultValue)
public static boolean convertValueToBoolean(CharSequence value, boolean defaultValue)
//package com.java2s; /*//w ww .j a v a 2 s . c o m * Copyright (C) 2006 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. */ public class Main { public static boolean convertValueToBoolean(CharSequence value, boolean defaultValue) { if (value == null) return defaultValue; return value.equals("1") || value.equals("true") || value.equals("TRUE"); } }