/*
* Copyright (c) 2018 CPPAlien
*
* Licensed under the GNU GENERAL PUBLIC LICENSE, Version 3, 29 June 2007 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://github.com/CPPAlien/FileTransfer/blob/master/LICENSE
*
* 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.
*/
package me.pengtao.filetransfer.util;
import android.app.AlertDialog;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.provider.OpenableColumns;
import android.support.v4.content.FileProvider;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Arrays;
import me.pengtao.filetransfer.R;
/**
* @author CPPAlien
*/
public class FileUtils {
/**
* 获得文件的 uri
*
* @param context context
* @param filePath 文件路径
* @return uri
*/
public static Uri getFileUri(Context context, String filePath) {
File file = new File(filePath);
return FileProvider.getUriForFile(context, context.getPackageName() + "" +
".fileprovider", file);
}
public static boolean openFile(String filePath, Context context) {
int fileType = getFileType(filePath);
File file = new File(filePath);
if (file.isFile()) {
Intent intent = null;
Uri contentUri = getFileUri(context, filePath);
switch (fileType) {
case FileType.TYPE_IMAGE:
intent = getImageFileIntent(contentUri);
break;
case FileType.TYPE_AUDIO:
intent = getAudioFileIntent(contentUri);
break;
case FileType.TYPE_VIDEO:
intent = getVideoFileIntent(contentUri);
break;
case FileType.TYPE_WEB:
intent = getHtmlFileIntent(contentUri);
break;
case FileType.TYPE_TEXT:
intent = getTextFileIntent(contentUri);
break;
case FileType.TYPE_EXCEL:
intent = getExcelFileIntent(contentUri);
break;
case FileType.TYPE_WORD:
intent = getWordFileIntent(contentUri);
break;
case FileType.TYPE_PPT:
intent = getPPTFileIntent(contentUri);
break;
case FileType.TYPE_PDF:
intent = getPdfFileIntent(contentUri);
break;
case FileType.TYPE_PACKAGE:
case FileType.TYPE_APK:
intent = getApkFileIntent(context, file);
break;
default:
new AlertDialog.Builder(context)
.setMessage(R.string.no_program_open_it)
.setPositiveButton(R.string.ok, null)
.show();
break;
}
if (intent != null) {
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
context.startActivity(intent);
return true;
}
}
return false;
}
public static int getFileType(String filePath) {
File file = new File(filePath);
String fileName = file.getName();
for (int i = 0; i < FileType.FileTypes.length; i++) {
int j = checkStringEnds(fileName, FileType.FileTypes[i]);
if (j == -1) {
continue;
}
return FileType.TypeStart[i];
}
return FileType.TYPE_UNKNOWN;
}
private static int checkStringEnds(String item, String[] array) {
for (int i = 0; i < array.length; i++) {
if (item.endsWith(array[i])) {
return i;
}
}
return -1;
}
public static int getFileTypeIcon(String path) {
int fileType = getFileType(path);
switch (fileType) {
case FileType.TYPE_IMAGE:
return R.drawable.image;
case FileType.TYPE_AUDIO:
return R.drawable.audio;
case FileType.TYPE_VIDEO:
return R.drawable.vedio;
case FileType.TYPE_WEB:
return R.drawable.web;
case FileType.TYPE_TEXT:
return R.drawable.text;
case FileType.TYPE_EXCEL:
return R.drawable.excel;
case FileType.TYPE_WORD:
return R.drawable.doc;
case FileType.TYPE_PPT:
return R.drawable.ppt;
case FileType.TYPE_PDF:
return R.drawable.pdf;
case FileType.TYPE_PACKAGE:
return R.drawable.zip;
default:
return R.drawable.other_file;
}
}
public static String getShareType(String path) {
int fileType = getFileType(path);
switch (fileType) {
case FileType.TYPE_IMAGE:
return "image/*";
case FileType.TYPE_AUDIO:
return "audio/*";
case FileType.TYPE_VIDEO:
return "video/*";
case FileType.TYPE_WEB:
case FileType.TYPE_TEXT:
return "text/*";
case FileType.TYPE_EXCEL:
case FileType.TYPE_WORD:
case FileType.TYPE_PPT:
case FileType.TYPE_PDF:
case FileType.TYPE_PACKAGE:
case FileType.TYPE_APK:
return "application/*";
default:
return "*/*";
}
}
public static void copyFile(InputStream in, String targetLocation) throws IOException {
OutputStream out = new FileOutputStream(targetLocation);
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
out.close();
}
public static String getFileName(Context context, Uri uri) {
String result = null;
if (uri.getScheme().equals("content")) {
try (Cursor cursor = context.getContentResolver().query(uri, null, null, null, null)) {
if (cursor != null && cursor.moveToFirst()) {
result = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
}
}
}
if (result == null) {
result = uri.getPath();
int cut = result.lastIndexOf('/');
if (cut != -1) {
result = result.substring(cut + 1);
}
}
return result;
}
private static Intent getHtmlFileIntent(Uri uri) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.setDataAndType(uri, "text/html");
return intent;
}
private static Intent getImageFileIntent(Uri uri) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(uri, "image/*");
return intent;
}
private static Intent getPdfFileIntent(Uri uri) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(uri, "application/pdf");
return intent;
}
private static Intent getTextFileIntent(Uri uri) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(uri, "text/plain");
return intent;
}
private static Intent getAudioFileIntent(Uri uri) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("oneshot", 0);
intent.putExtra("configchange", 0);
intent.setDataAndType(uri, "audio/*");
return intent;
}
private static Intent getVideoFileIntent(Uri uri) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("oneshot", 0);
intent.putExtra("configchange", 0);
intent.setDataAndType(uri, "video/*");
return intent;
}
private static Intent getWordFileIntent(Uri uri) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(uri, "application/msword");
return intent;
}
private static Intent getExcelFileIntent(Uri uri) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(uri, "application/vnd.ms-excel");
return intent;
}
private static Intent getPPTFileIntent(Uri uri) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
return intent;
}
private static Intent getApkFileIntent(Context context, File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
//兼容7.0
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
Uri contentUri = FileProvider.getUriForFile(context, context.getPackageName() + "" +
".fileprovider", file);
intent.setDataAndType(contentUri, "application/vnd.android.package-archive");
} else {
intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
}
return intent;
}
public static void sortWithLastModified(File[] files) {
Arrays.sort(files, (f1, f2) -> {
long diff = f1.lastModified() - f2.lastModified();
if (diff > 0) {
return -1;
} else if (diff == 0) {
return 0;
} else {
return 1;
}
});
}
/**
* Writes a byte array to a file creating the file if it does not exist.
*
* @param file the file to write to
* @param data the content to write to the file
* @param append if {@code true}, then bytes will be added to the
* end of the file rather than overwriting
* @throws IOException in case of an I/O error
* @since IO 2.1
*/
public static void writeByteArrayToFile(File file, byte[] data, boolean append) throws IOException {
OutputStream out = null;
try {
out = openOutputStream(file, append);
out.write(data);
out.close(); // don't swallow close Exception if copy completes normally
} finally {
if (out != null) {
out.close();
}
}
}
private static FileOutputStream openOutputStream(File file, boolean append) throws IOException {
if (file.exists()) {
if (file.isDirectory()) {
throw new IOException("File '" + file + "' exists but is a directory");
}
if (!file.canWrite()) {
throw new IOException("File '" + file + "' cannot be written to");
}
} else {
File parent = file.getParentFile();
if (parent != null) {
if (!parent.mkdirs() && !parent.isDirectory()) {
throw new IOException("Directory '" + parent + "' could not be created");
}
}
}
return new FileOutputStream(file, append);
}
}
