下载及解压的工具类记录
下载工具类
public class DownloadUtil {
private static DownloadUtil downloadUtil;
private final OkHttpClient okHttpClient;
private boolean isDestroy = false;
public static DownloadUtil get() {
if (downloadUtil == null) {
downloadUtil = new DownloadUtil();
}
return downloadUtil;
}
private DownloadUtil() {
okHttpClient = new OkHttpClient();
}
/**
* @param url 下载连接
* @param destFileDir 下载的文件储存目录
* @param destFileName 下载文件名称
* @param listener 下载监听
*/
public void download(final String url, final String destFileDir, final String destFileName, final OnDownloadListener listener) {
LogUtils.e("DownloadUtil download");
isDestroy = false;
Request request = new Request.Builder().url(url).build();
okHttpClient.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Request request, IOException e) {
// 下载失败监听回调
listener.onDownloadFailed(e);
}
@Override
public void onResponse(Response response) throws IOException {
InputStream is = null;
byte[] buf = new byte[2048];
int len = 0;
FileOutputStream fos = null;
// 储存下载文件的目录
File dir = new File(destFileDir);
if (dir.exists()) {
dir.delete();
}
if (!dir.exists()) {
dir.mkdirs();
}
File file = new File(dir, destFileName);
try {
is = response.body().byteStream();
long total = response.body().contentLength();
fos = new FileOutputStream(file);
long sum = 0;
while ((len = is.read(buf)) != -1 && !isDestroy) {
fos.write(buf, 0, len);
sum += len;
int progress = (int) (sum * 1.0f / total * 100);
// 下载中更新进度条
listener.onDownloading(progress);
}
fos.flush();
// 下载完成
if (!isDestroy) {
listener.onDownloadSuccess(file);
}else {
listener.onDownloadFailed(new Exception());
}
} catch (Exception e) {
listener.onDownloadFailed(e);
} finally {
try {
if (is != null)
is.close();
} catch (IOException e) {
}
try {
if (fos != null)
fos.close();
} catch (IOException e) {
}
}
}
});
}
public void stopDownload() {
isDestroy = true;
}
public interface OnDownloadListener {
/**
* @param file 下载成功后的文件
*/
void onDownloadSuccess(File file);
/**
* @param progress 下载进度
*/
void onDownloading(int progress);
/**
* @param e 下载异常信息
*/
void onDownloadFailed(Exception e);
}
}
zip工具类
public class ZIP {
public ZIP(){
}
/**
* DeCompress the ZIP to the path
* @param zipFileString name of ZIP
* @param outPathString path to be unZIP
* @throws Exception
*/
public static void unZipFolder(String zipFileString, String outPathString) throws Exception {
ZipInputStream inZip = new ZipInputStream(new FileInputStream(zipFileString));
ZipEntry zipEntry;
String szName = "";
while ((zipEntry = inZip.getNextEntry()) != null) {
szName = zipEntry.getName();
if (zipEntry.isDirectory()) {
// get the folder name of the widget
szName = szName.substring(0, szName.length() - 1);
File folder = new File(outPathString + File.separator + szName);
folder.mkdirs();
} else {
File file = new File(outPathString + File.separator + szName);
file.createNewFile();
// get the output stream of the file
FileOutputStream out = new FileOutputStream(file);
int len;
byte[] buffer = new byte[1024];
// read (len) bytes into buffer
while ((len = inZip.read(buffer)) != -1) {
// write (len) byte from buffer at the position 0
out.write(buffer, 0, len);
out.flush();
}
out.close();
}
}
LogUtils.e("解压成功!");
inZip.close();
}
/**
* Compress file and folder
* @param srcFileString file or folder to be Compress
* @param zipFileString the path name of result ZIP
* @throws Exception
*/
public static void ZipFolder(String srcFileString, String zipFileString)throws Exception {
//create ZIP
ZipOutputStream outZip = new ZipOutputStream(new FileOutputStream(zipFileString));
//create the file
File file = new File(srcFileString);
//compress
ZipFiles(file.getParent()+File.separator, file.getName(), outZip);
//finish and close
outZip.finish();
outZip.close();
}
/**
* compress files
* @param folderString
* @param fileString
* @param zipOutputSteam
* @throws Exception
*/
private static void ZipFiles(String folderString, String fileString, ZipOutputStream zipOutputSteam)throws Exception{
if(zipOutputSteam == null)
return;
File file = new File(folderString+fileString);
if (file.isFile()) {
ZipEntry zipEntry = new ZipEntry(fileString);
FileInputStream inputStream = new FileInputStream(file);
zipOutputSteam.putNextEntry(zipEntry);
int len;
byte[] buffer = new byte[4096];
while((len=inputStream.read(buffer)) != -1)
{
zipOutputSteam.write(buffer, 0, len);
}
zipOutputSteam.closeEntry();
}
else {
//folder
String fileList[] = file.list();
//no child file and compress
if (fileList.length <= 0) {
ZipEntry zipEntry = new ZipEntry(fileString+File.separator);
zipOutputSteam.putNextEntry(zipEntry);
zipOutputSteam.closeEntry();
}
//child files and recursion
for (int i = 0; i < fileList.length; i++) {
ZipFiles(folderString, fileString+java.io.File.separator+fileList[i], zipOutputSteam);
}//end of for
}
}
/**
* return the InputStream of file in the ZIP
* @param zipFileString name of ZIP
* @param fileString name of file in the ZIP
* @return InputStream
* @throws Exception
*/
public static InputStream UpZip(String zipFileString, String fileString)throws Exception {
ZipFile zipFile = new ZipFile(zipFileString);
ZipEntry zipEntry = zipFile.getEntry(fileString);
return zipFile.getInputStream(zipEntry);
}
/**
* return files list(file and folder) in the ZIP
* @param zipFileString ZIP name
* @param bContainFolder contain folder or not
* @param bContainFile contain file or not
* @return
* @throws Exception
*/
public static List<File> GetFileList(String zipFileString, boolean bContainFolder, boolean bContainFile)throws Exception {
List<File> fileList = new ArrayList<File>();
ZipInputStream inZip = new ZipInputStream(new FileInputStream(zipFileString));
ZipEntry zipEntry;
String szName = "";
while ((zipEntry = inZip.getNextEntry()) != null) {
szName = zipEntry.getName();
if (zipEntry.isDirectory()) {
// get the folder name of the widget
szName = szName.substring(0, szName.length() - 1);
File folder = new File(szName);
if (bContainFolder) {
fileList.add(folder);
}
} else {
File file = new File(szName);
if (bContainFile) {
fileList.add(file);
}
}
}
inZip.close();
return fileList;
}
}
文件下载并解压
/**
* 下载文件
*
* @param urlPath
*/
private void downloadZip(String urlPath) {
final String dirName = PhotoUtils.getImgResourcesDirPath();
final String newFilename = urlPath.substring(urlPath.lastIndexOf("/") + 1);
LogUtils.e("downloadZip dirName: " + dirName + ",newFilename: " + newFilename);
DownloadUtil.get().download(urlPath, dirName, newFilename, new DownloadUtil.OnDownloadListener() {
@Override
public void onDownloadSuccess(File file) {
unZip(dirName + newFilename, dirName);
}
@Override
public void onDownloading(int progress) {
LogUtils.e("progress：" + progress + "%");
}
@Override
public void onDownloadFailed(Exception e) {
}
});
}
/**
* zip解压
*/
private void unZip(String zipFileString, String outPathString) {
try {
ZIP.unZipFolder(zipFileString, outPathString);
MysharePerference.INSTANCE.save("RESOURCES_VERSION", newVersion);
} catch (Exception e) {
LogUtils.e("解压失败 Exception e: " + e.toString());
}
}
## 文件使用
### 设置图片
public static void setMedalImageByUri(ImageView imageView, String name){
imageView.setImageURI(Uri.fromFile(new File(PhotoUtils.getImgResourcesDirPath() + name + ".png")));
}
### 设置video播放源
videoPath = PhotoUtils.getVideoSaveDirPath() + videos.get(0).getName();
mVideoView.post(new Runnable() {
@Override
public void run() {
mVideoView.setVideoPath(videoPath);
mVideoView.start();
}
});