部分改善详情界面，添加 Ripple 效果
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/*
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* Copyright (C) 2014 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.ehviewer.util;
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import java.io.ByteArrayOutputStream;
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import java.io.Closeable;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.List;
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import java.util.Locale;
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import android.annotation.SuppressLint;
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import android.content.SharedPreferences;
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import android.os.AsyncTask;
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import android.os.Build;
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import android.view.View;
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import android.view.ViewParent;
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public class Utils {
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@SuppressWarnings("unused")
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private static String TAG = "Util";
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/**
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* Put InputStream to File, default bufferSize is 512 * 1024
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*
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* @param is
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* @param file
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* @throws IOException
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*/
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public static void inputStream2File(InputStream is, File file) throws IOException {
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OutputStream os = new FileOutputStream(file);
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copy(is, os);
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}
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public static void copy(InputStream is, OutputStream os) throws IOException {
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copy(is, os, 512 * 1024);
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}
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public static void copy(InputStream is, OutputStream os, int size) throws IOException {
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byte[] buffer = new byte[size];
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int bytesRead;
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while((bytesRead = is.read(buffer)) !=-1)
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os.write(buffer, 0, bytesRead);
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is.close();
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os.flush();
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os.close();
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buffer = null;
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}
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public static final int BITMAP = 0x0;
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public static final int MOVIE = 0x1;
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public static int getResourcesType(String url) {
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int type = BITMAP;
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int index = url.lastIndexOf('.');
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if (index != -1 && getExtension(url).equals("gif"))
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type = MOVIE;
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return type;
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}
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public static String getExtension(String url) {
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int index = url.lastIndexOf('.');
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if (index != -1)
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return url.substring(index + 1).toLowerCase();
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else
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return "png";
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}
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public static String getName(String fileName) {
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int index = fileName.lastIndexOf('.');
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if (index != -1)
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return fileName.substring(0, index).toLowerCase();
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else
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return "png";
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}
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public static boolean isNumber(String str) {
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for (int i = 0; i < str.length(); i++) {
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char ch = str.charAt(i);
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if (ch < '0' || ch > '9')
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return false;
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}
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return true;
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}
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public static String byteArrayToHexString(byte[] b) {
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StringBuilder sb = new StringBuilder(b.length * 2);
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for (byte element : b) {
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int v = element & 0xFF;
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if (v < 16) {
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sb.append('0');
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}
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sb.append(Integer.toHexString(v));
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}
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return sb.toString().toUpperCase(Locale.getDefault());
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}
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public static byte[] hexStringToByteArray(String s) {
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int len = s.length()/2*2;
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byte[] data = new byte[len / 2];
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for (int i = 0; i < len; i += 2) {
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data[(i / 2)] = ((byte) ((Character.digit(s.charAt(i), 16) << 4) + Character
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.digit(s.charAt(i + 1), 16)));
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}
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return data;
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}
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/**
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* Convernt context in stream to string
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*
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* @param is
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* @param charset
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* @return
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*/
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public static String InputStream2String(InputStream is, String charset) {
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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String str = null;
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try {
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Utils.copy(is, baos, 1024);
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str = baos.toString(charset);
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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Utils.closeStreamQuietly(baos);
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}
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return str;
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}
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public static String getFileForUrl(String url) {
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String file = null;
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int index = url.lastIndexOf("/");
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if (index == -1)
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return url;
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else
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return url.substring(index + 1);
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}
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public static String[] getStrings(SharedPreferences shaper, String key) {
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String str = shaper.getString(key, null);
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if (str == null || str.length() == 0)
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return null;
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return new String(Utils.hexStringToByteArray(str)).split("\n");
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}
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public static void putStrings(SharedPreferences shaper, String key, List<String> strs) {
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StringBuffer sb = new StringBuffer();
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for (String item : strs) {
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sb.append(item);
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sb.append('\n');
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}
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int length = sb.length();
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if (length != 0)
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sb.delete(length - 1, length);
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shaper.edit().putString(key, byteArrayToHexString(sb.toString().getBytes())).apply();
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}
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public static void closeStreamQuietly (Closeable is) {
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try {
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if (is != null)
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is.close();
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} catch (IOException e) {
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}
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}
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/**
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* Delete dir and it child file and dir
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*
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* @param dir
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* The dir to deleted
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* @throws IOException
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*/
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public static void deleteContents(File dir) throws IOException {
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File[] files = dir.listFiles();
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if (files == null) {
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throw new IOException("not a readable directory: " + dir);
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}
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for (File file : files) {
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if (file.isDirectory()) {
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deleteContents(file);
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}
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if (!file.delete()) {
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throw new IOException("failed to delete file: " + file);
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}
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}
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}
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@SuppressLint("SimpleDateFormat")
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public static int getDate() {
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int time = 0;
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try {
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time = Integer.parseInt(new SimpleDateFormat("yyyyMMdd").format(new Date()));
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} catch (NumberFormatException e) {}
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return time;
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}
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private static String[] SIZE_UNIT = {"%.2f B", "%.2f KB", "%.2f MB", "%.2f GB"};
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public static String sizeToString(long size) {
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int length = SIZE_UNIT.length;
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float sizeFloat = size;
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for (int i = 0; i < length; i++) {
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if (sizeFloat < 1024 || i == length - 1) {
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return String.format(SIZE_UNIT[i], sizeFloat);
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}
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sizeFloat /= 1024;
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}
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return null;
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}
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/**
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* Execute an {@link AsyncTask} on a thread pool
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*
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* @param forceSerial True to force the task to run in serial order
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* @param task Task to execute
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* @param args Optional arguments to pass to
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* {@link AsyncTask#execute(Object[])}
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* @param <T> Task argument type
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*/
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@SuppressLint("NewApi")
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public static <T> void execute(final boolean forceSerial, final AsyncTask<T, ?, ?> task,
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final T... args) {
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.DONUT) {
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throw new UnsupportedOperationException(
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"This class can only be used on API 4 and newer.");
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}
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB || forceSerial) {
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task.execute(args);
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} else {
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task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, args);
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}
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}
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/**
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* Method that removes the support for HardwareAcceleration from a {@link View}.<br/>
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* <br/>
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* Check AOSP notice:<br/>
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* <pre>
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* 'ComposeShader can only contain shaders of different types (a BitmapShader and a
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* LinearGradient for instance, but not two instances of BitmapShader)'. But, 'If your
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* application is affected by any of these missing features or limitations, you can turn
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* off hardware acceleration for just the affected portion of your application by calling
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* setLayerType(View.LAYER_TYPE_SOFTWARE, null).'</pre>
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*
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* @param v The view
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*/
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public static void removeHardwareAccelerationSupport(View v) {
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if (v.getLayerType() != View.LAYER_TYPE_SOFTWARE) {
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v.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
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}
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}
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/**
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* Mostly title and url need it
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* @param str
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* @return
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*/
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public static final String htmlUnsescape(String str) {
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return str.replace("&", "&")
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.replace("<", "<")
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.replace(">", ">")
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.replace(""", "\"")
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.replace("'", "'");
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}
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/**
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* Make file name valid by removing invalid character and set max length
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* @param name
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* @return
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*/
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public static final String rightFileName(String name) {
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name = name.replaceAll("[\\\\|/|:|*|?|\"|<|>|\\|]", "");
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return name.length() > 255 ? name.substring(0, 255) : name;
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}
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/**
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* Joins the elements of the provided array into a single String
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* containing the provided list of elements.
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*
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* @param array
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* @param separator
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* @return
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*/
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public static final String join(final Object[] array,
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final Object separator) {
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final StringBuilder sb = new StringBuilder(array.length * 16);
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for (int i = 0; i < array.length; i++) {
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if (i != 0)
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sb.append(separator);
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sb.append(array[i]);
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}
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return sb.toString();
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}
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public static final boolean int2boolean(int integer) {
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return integer == 0 ? false : true;
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}
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public static void getCenterInWindows(View view, int[] location) {
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getLocationInWindow(view, location);
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location[0] += view.getWidth() / 2;
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location[1] += view.getHeight() / 2;
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}
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public static void getLocationInWindow(View view, int[] location) {
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if (location == null || location.length < 2) {
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throw new IllegalArgumentException("location must be an array of two integers");
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}
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float[] position = new float[2];
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position[0] = view.getLeft();
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position[1] = view.getTop();
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ViewParent viewParent = view.getParent();
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while (viewParent instanceof View) {
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view = (View)viewParent;
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if (view.getId() == android.R.id.content) {
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break;
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}
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position[0] -= view.getScrollX();
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position[1] -= view.getScrollY();
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position[0] += view.getLeft();
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position[1] += view.getTop();
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viewParent = view.getParent();
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}
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location[0] = (int) (position[0] + 0.5f);
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location[1] = (int) (position[1] + 0.5f);
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}
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}
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