124 lines
3.9 KiB
Java
124 lines
3.9 KiB
Java
/*
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* Copyright (c) 2019 Hemanth Savarala.
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*
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* Licensed under the GNU General Public License v3
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*
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* This is free software: you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by
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* the Free Software Foundation either version 3 of the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*/
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package code.name.monkey.retromusic.util;
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import android.util.Base64;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.UnsupportedEncodingException;
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import androidx.annotation.NonNull;
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/**
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* Created by hefuyi on 2016/11/8.
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*/
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public class LyricUtil {
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private static final String lrcRootPath = android.os.Environment
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.getExternalStorageDirectory().toString() + "/RetroMusic/lyrics/";
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@NonNull
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public static File writeLrcToLoc(@NonNull String title, @NonNull String artist, @NonNull String lrcContext) {
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FileWriter writer = null;
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try {
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File file = new File(getLrcPath(title, artist));
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if (!file.getParentFile().exists()) {
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file.getParentFile().mkdirs();
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}
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writer = new FileWriter(getLrcPath(title, artist));
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writer.write(lrcContext);
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return file;
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} catch (IOException e) {
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e.printStackTrace();
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return null;
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} finally {
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try {
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if (writer != null)
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writer.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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public static boolean deleteLrcFile(@NonNull String title, @NonNull String artist) {
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File file = new File(getLrcPath(title, artist));
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return file.delete();
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}
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public static boolean isLrcFileExist(@NonNull String title, @NonNull String artist) {
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File file = new File(getLrcPath(title, artist));
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return file.exists();
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}
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@NonNull
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public static File getLocalLyricFile(@NonNull String title, @NonNull String artist) {
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File file = new File(getLrcPath(title, artist));
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if (file.exists()) {
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return file;
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} else {
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return new File("lyric file not exist");
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}
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}
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private static String getLrcPath(String title, String artist) {
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return lrcRootPath + title + " - " + artist + ".lrc";
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}
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@NonNull
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public static String decryptBASE64(@NonNull String str) {
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if (str == null || str.length() == 0) {
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return null;
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}
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try {
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byte[] encode = str.getBytes("UTF-8");
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// base64 解密
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return new String(Base64.decode(encode, 0, encode.length, Base64.DEFAULT), "UTF-8");
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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}
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return null;
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}
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@NonNull
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public static String getStringFromFile(@NonNull String title, @NonNull String artist) throws Exception {
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File file = new File(getLrcPath(title, artist));
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FileInputStream fin = new FileInputStream(file);
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String ret = convertStreamToString(fin);
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fin.close();
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return ret;
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}
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private static String convertStreamToString(InputStream is) throws Exception {
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BufferedReader reader = new BufferedReader(new InputStreamReader(is));
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StringBuilder sb = new StringBuilder();
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String line = null;
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while ((line = reader.readLine()) != null) {
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sb.append(line).append("\n");
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}
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reader.close();
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return sb.toString();
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}
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}
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