小编Jen*_*ala的帖子

这个恢复下载的代码在Android中无法正常工作,尽管它在Java应用程序中运行良好.在这里,我试图下载一个zip文件,它将恢复下载,但最终结果是一个无效的zip文件.

 BufferedInputStream in = null;
        FileOutputStream fos = null;
        BufferedOutputStream bout=null;

        try {
            downloaded=0;
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            if(ISSUE_DOWNLOAD_STATUS.intValue()==ECMConstant.ECM_DOWNLOADING){
                File file=new File(DESTINATION_PATH);
                if(file.exists()){
                    downloaded = (int) file.length();
                }
            }
            connection.setRequestProperty("Range", "bytes=" + downloaded + "-");
            connection.connect();
            size=connection.getContentLength();
            Dialog.setMax(size);
             in = new BufferedInputStream(connection.getInputStream());
             fos=(downloaded==0)? new FileOutputStream(DESTINATION_PATH): new FileOutputStream(DESTINATION_PATH,true);
             bout = new BufferedOutputStream(fos, 1024);
            byte[] data = new byte[1024];
            int x = 0;
            while ((x = in.read(data, 0, 1024)) >= 0) {
                bout.write(data, 0, x);
                 downloaded += x;
                 System.out.println(downloaded);
                 onProgressUpdate((int)(downloaded*100/size));
            } …

这里有一些代码可以在手机上正常工作:

Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setDataAndType(IMAGEURI, "image/jpg");
startActivity(intent);

哪个在Honeycomb(3.0和3.1)上抛出这个:

E/AndroidRuntime(25629): FATAL EXCEPTION: main
E/AndroidRuntime(25629): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=content://media/external/images/media/282 typ=image/jpg }

真？没有申请在蜂窝上观看jpg？真？有没有人能够在平板电脑上正确地做到这一点？