java - 君拉尔 : Application freezes until extraction is not completed

Question

我在 junrar 方面遇到了某种问题，我可以使用 junrar 提取 rar 文件，但速度很慢，并且我的应用程序停止响应，直到提取未完成，如果有人有 junrar 的解决方案或替代方案，请帮助我。我也在服务中使用过 junrar，但结果相同，请帮忙...这是我要提取的代码

private static File createFile(FileHeader fh, File destination) {
    File f = null;
    String name = null;
    if (fh.isFileHeader() && fh.isUnicode()) {
     name = fh.getFileNameW();
    } else {
     name = fh.getFileNameString();
    }
    f = new File(destination, name);
    if (!f.exists()) {
     try {
            f = makeFile(destination, name);
     } catch (IOException e) {
            Log.e("error creating the new file: " ,f.getName(), e);
     }
    }
    return f;
}
private static File makeFile(File destination, String name)
        throws IOException {

       String[] dirs = name.split("\\\\");
       if (dirs == null) {
        return null;
       }
       String path = "";
       int size = dirs.length;
       if (size == 1) {
        return new File(destination, name);
       } else if (size > 1) {
        for (int i = 0; i < dirs.length - 1; i++) {
               path = path + File.separator + dirs[i];
               new File(destination, path).mkdir();
        }
        path = path + File.separator + dirs[dirs.length - 1];
        File f = new File(destination, path);
        f.createNewFile();
        return f;
       } else {
        return null;
       }
   }
public void extractRar(File filerar,final String location)
{
    Archive a = null;
    try {
        a = new Archive(new FileVolumeManager(filerar));
} catch (RarException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
} catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
}
    if (a != null) {
        a.getMainHeader().print();
        FileHeader fh = a.nextFileHeader();
        while (fh != null) {

                try {
                    if(fh.isDirectory())
                    {

                            Log.e("directory", fh.getFileNameString());
                            if(fh.getFileNameString().contains("."))
                            {
                                directory=fh.getFileNameString();
                                Log.e("Directory name",directory);
                            }

                    }else{
                        file=fh.getFileNameString();
                        Log.e("File name",file);

                        File out = createFile(fh, new File(location));
                        Log.e("observe file",location+file.substring(0, file.indexOf("\\main")).replace("\\", "/"));
                        final Timer mytimer=new Timer();
                        mytimer.schedule(new TimerTask() {

                            @Override
                            public void run() {
                                // TODO Auto-generated method stub
                                if(new File(location+file.replace("\\", "/")).exists())
                                Log.e("size", size(new File(location+file.replace("\\", "/")).length()));
                                intent.putExtra("file_length", new File(location+file.replace("\\", "/")).length());
                                intent.putExtra("status", "extracting");
                                getApplicationContext().sendBroadcast(intent);

                            }
                        }, 0, 50);

                        System.out.println(out.getAbsolutePath());
                        FileOutputStream os = new FileOutputStream(out);
                        a.extractFile(fh, os);
                        mytimer.cancel();
                        os.close();}
                } catch (FileNotFoundException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                } catch (RarException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                }
                fh = a.nextFileHeader(); 

        }

        intent.putExtra("status", "completed");
        getApplicationContext().sendBroadcast(intent);
        Toast.makeText(getApplicationContext(), "Successfully Extracted", Toast.LENGTH_LONG).show();

}
}

Answer 1

您只需创建一个线程并将提取登录添加到 run() 方法中:

// Download Contents
   Thread t = new Thread() {
    @Override
    public void run() {
                //Add extract logic here
                }
    };
    t.start();