Show Upload Progress For Json
I have the following piece of code and I would want to add a feature in here such that I know when the JSON content is uploaded. I am uploading a JSON content. @Override protected
Solution 1:
Initiate your progress bar as
private ProgressDialog pDialog;
On onPreExecute()
@OverrideprotectedvoidonPreExecute() {
// TODO Auto-generated method stubsuper.onPreExecute();
pDialog = newProgressDialog(getParent());
pDialog.setMessage("Please wait ...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
On onPostExecute()
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
pDialog.dismiss();
}
For showing progress bar with percentage try ..
publicclassAndroidDownloadFileByProgressBarActivityextendsActivity {
// button to show progress dialog
Button btnShowProgress;
// Progress Dialogprivate ProgressDialog pDialog;
ImageView my_image;
// Progress dialog type (0 - for Horizontal progress bar)publicstaticfinalintprogress_bar_type=0;
// File url to downloadprivatestaticStringfile_url="your_url";
@OverridepublicvoidonCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// show progress bar button
btnShowProgress = (Button) findViewById(R.id.btnProgressBar);
// Image view to show image after downloading
my_image = (ImageView) findViewById(R.id.my_image);
/**
* Show Progress bar click event
* */
btnShowProgress.setOnClickListener(newView.OnClickListener() {
@OverridepublicvoidonClick(View v) {
// starting new Async TasknewDownloadFileFromURL().execute(file_url);
}
});
}
/**
* Showing Dialog
* */@Overrideprotected Dialog onCreateDialog(int id) {
switch (id) {
case progress_bar_type:
pDialog = newProgressDialog(this);
pDialog.setMessage("Downloading file. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setMax(100);
pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
pDialog.setCancelable(true);
pDialog.show();
return pDialog;
default:
returnnull;
}
}
/**
* Background Async Task to download file
* */classDownloadFileFromURLextendsAsyncTask<String, String, String> {
/**
* Before starting background thread
* Show Progress Bar Dialog
* */@OverrideprotectedvoidonPreExecute() {
super.onPreExecute();
showDialog(progress_bar_type);
}
/**
* Downloading file in background thread
* */@Overrideprotected String doInBackground(String... f_url) {
int count;
try {
URLurl=newURL(f_url[0]);
URLConnectionconection= url.openConnection();
conection.connect();
// getting file lengthintlenghtOfFile= conection.getContentLength();
// input stream to read file - with 8k bufferInputStreaminput=newBufferedInputStream(url.openStream(), 8192);
// Output stream to write fileOutputStreamoutput=newFileOutputStream("/sdcard/downloadedfile.jpg");
byte data[] = newbyte[1024];
longtotal=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());
}
returnnull;
}
/**
* Updating progress bar
* */protectedvoidonProgressUpdate(String... progress) {
// setting progress percentage
pDialog.setProgress(Integer.parseInt(progress[0]));
}
/**
* After completing background task
* Dismiss the progress dialog
* **/@OverrideprotectedvoidonPostExecute(String file_url) {
// dismiss the dialog after the file was downloaded
dismissDialog(progress_bar_type);
// Displaying downloaded image into image view// Reading image path from sdcardStringimagePath= Environment.getExternalStorageDirectory().toString() + "/downloadedfile.jpg";
// setting downloaded into image view
my_image.setImageDrawable(Drawable.createFromPath(imagePath));
}
}
}
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