Android™

HTTP Download any Type of File (binary or text)

See more HTTP Examples

The Download method can download any file type, whether binary (e.g., .zip, .pdf) or text (.xml, .txt), without distinction. It streams the file byte-for-byte from the web server exactly as received. This same process applies to web pages: providing a URL typically viewed in a browser downloads the server's delivered HTML to a file. Android™

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttp http = new CkHttp();
    http.put_KeepResponseBody(true);

    // Download a .zip
    String localFilePath = "/temp/hamlet.zip";
    success = http.Download("https://www.chilkatsoft.com/hamlet.zip",localFilePath);
    int statusCode = http.get_LastStatus();
    if (success == false) {
        if (statusCode == 0) {
            // Unable to either send the request or get the response.
            Log.i(TAG, http.lastErrorText());
            }
        else {
            // We got a response, but the status code was not in the 200s
            Log.i(TAG, "Response status code: " + String.valueOf(statusCode));
            // Examine the response body.
            Log.i(TAG, "Response body:");
            Log.i(TAG, http.lastResponseBody());
            }

        Log.i(TAG, "Download failed.");

        }
    else {
        Log.i(TAG, "Download success, response status = " + String.valueOf(statusCode));
        }

    // Download an XML file:
    localFilePath = "/temp/hamlet.xml";
    success = http.Download("https://www.chilkatsoft.com/hamlet.xml",localFilePath);
    // ...
    // Check for errors in the same way as shown above..
    // ...

    Log.i(TAG, "OK!");

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}