在我的应用程序中,我想下载并共享一个html文件。所以我尝试了以下代码:
Button download = (Button) findViewById(R.id.downloadbtn);
download.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
String file_url= "/* http url*/";
new DownloadFileFromURL().execute(file_url);
}
});
}
class DownloadFileFromURL extends AsyncTask<String, String, String> {
/**
* Before starting background thread
* Show Progress Bar Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
showDialog(progress_bar_type);
}
/**
* Downloading file in background thread
* */
@Override
protected String doInBackground(String... f_url) {
int count;
try {
URL url = new URL(f_url[0]);
URLConnection conection = url.openConnection();
conection.connect();
// getting file length
int lenghtOfFile = conection.getContentLength();
// input stream to read file - with 8k buffer
InputStream input = new BufferedInputStream(url.openStream(), 8192);
String filePath = Environment.getExternalStorageDirectory().toString() + "/sridhar.html";
// Output stream to write file
OutputStream output = new FileOutputStream(filePath);
byte data[] = new byte[1024];
long total = 0;
while ((count = input.read(data)) != -1) {
total += count;
// publishing the progress....
// After this onProgressUpdate will be called
publishProgress(""+(int)((total*100)/lenghtOfFile));
// writing data to file
output.write(data, 0, count);
}
// flushing output
output.flush();
// closing streams
output.close();
input.close();
} catch (Exception e) {
Log.e("Error: ", e.getMessage());
}
return null;
}
/**
* Updating progress bar
* */
protected void onProgressUpdate(String... progress) {
// setting progress percentage
pDialog.setProgress(Integer.parseInt(progress[0]));
}
/**
* After completing background task
* Dismiss the progress dialog
* **/
@Override
protected void onPostExecute(String file_url) {
// dismiss the dialog after the file was downloaded
dismissDialog(progress_bar_type);
goShare();
}
}
public void goShare(){
String filePath = Environment.getExternalStorageDirectory().toString() + "/sridhar.html";
// setting downloaded into image view
Log.e("Downloaded path","Path is "+filePath);
Uri fileuri = Uri.fromFile(getFileStreamPath(filePath));
// MimeTypeMap myMime = MimeTypeMap.getSingleton();
//String mimeType = myMime.getMimeTypeFromExtension("html");
//File file = new File(imagePath);
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
// shareIntent.setDataAndType(Uri.fromFile(file),mimeType);
// shareIntent.setFlags(shareIntent.FLAG_ACTIVITY_NEW_TASK);
shareIntent.putExtra(Intent.EXTRA_STREAM, fileuri);
shareIntent.setType("text/html");
startActivity(Intent.createChooser(shareIntent,"Share"));
}
问题是,我可以下载我的html文件,但我无法分享... 即我能够带上共享上下文菜单并选择gmail,gmail应用程序不接受该文件,并强制关闭gmail应用程序。
而且进度条也无效......
请告诉我分享下载文件的最佳方式..
答案 0 :(得分:0)
我找到了解决方案:
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(filePath)));
shareIntent.setType("text/html");
startActivity(Intent.createChooser(shareIntent,"Share"));