Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <pre><code>package com.example.androidhive; import java.io.BufferedInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import java.net.URL; import java.net.URLConnection; import android.app.Activity; import android.app.Dialog; import android.app.ProgressDialog; import android.graphics.drawable.Drawable; import android.os.AsyncTask; import android.os.Bundle; import android.os.Environment; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.ImageView; public class AndroidDownloadFileByProgressBarActivity extends Activity { // button to show progress dialog Button btnShowProgress; // Progress Dialog private ProgressDialog pDialog; ImageView my_image; // Progress dialog type (0 - for Horizontal progress bar) public static final int progress_bar_type = 0; // File url to download String[] ur = { "http://www.funrocker.com/blog/wp-content/uploads/2010/04/Animals-Wild-Life-Jungle-FunRocker.Com-03.jpg", "http://2.bp.blogspot.com/-j56yaqpfjVE/TnzTjcqnCjI/AAAAAAAAGPM/MzqmczFkC30/s1600/natural-pictures.jpg", "http://www.fantasy-and-art.com/wp-content/gallery/nature-wallpapers/red-tree-wallpaper-hd.jpg" }; @Override public void onCreate(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(new View.OnClickListener() { @Override public void onClick(View v) { // starting new Async Task new DownloadFileFromURL().execute(ur); } }); } /** * Showing Dialog * */ @Override protected Dialog onCreateDialog(int id) { switch (id) { case progress_bar_type: pDialog = new ProgressDialog(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: return null; } } /** * Background Async Task to download file * */ class DownloadFileFromURL extends AsyncTask&lt;String, Integer, String&gt; { /** * 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 { for (int i = 0; i &lt; f_url.length; i++) { URL url = new URL(f_url[i]); 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); System.out.println("Data::" + f_url[i]); // Output stream to write file OutputStream output = new FileOutputStream( "/sdcard/downloaded" + i + ".jpg"); 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(Integer... progress) { // setting progress percentage pDialog.setProgress(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); // Displaying downloaded image into image view // Reading image path from sdcard String imagePath = Environment.getExternalStorageDirectory() .toString() + "/downloaded.jpg"; // setting downloaded into image view // my_image.setImageDrawable(Drawable.createFromPath(imagePath)); } } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. PODownloading multiple files one by one using AsyncTask?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USsharma_kunal
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload