(Android™) Example: Http.DownloadAppend method

Demonstrates the DownloadAppend method.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// 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;

    success = false;

    String targetPath = "c:/temp/qa_output/download.txt";

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

    // Assume the target file in the local filesystem does not yet exist.
    success = http.DownloadAppend("https://chilkatsoft.com/testData/helloWorld.txt",targetPath);
    int statusCode = http.get_LastStatus();
    if (statusCode == 0) {
        // Unable to either send the request or get the response.
        Log.i(TAG, http.lastErrorText());
        return;
        }

    // Should be 200.
    Log.i(TAG, "Response status code: " + String.valueOf(statusCode));

    // Examine the contents of the file.
    CkStringBuilder sb = new CkStringBuilder();
    sb.LoadFile(targetPath,"utf-8");
    Log.i(TAG, sb.getAsString());

    // Output: 
    // Response status code: 200
    // Hello World!

    // Download another text file and append to the target file.
    success = http.DownloadAppend("https://chilkatsoft.com/testData/this_is_a_test.txt",targetPath);
    statusCode = http.get_LastStatus();
    if (statusCode == 0) {
        // Unable to either send the request or get the response.
        Log.i(TAG, http.lastErrorText());
        return;
        }

    // Should be 200.
    Log.i(TAG, "Response status code: " + String.valueOf(statusCode));

    // Examine the contents of the file.
    sb.LoadFile(targetPath,"utf-8");
    Log.i(TAG, sb.getAsString());

    // Output:
    // Response status code: 200
    // Hello World!This is a Test.

    // Delete the local target file.
    CkFileAccess fac = new CkFileAccess();
    fac.FileDelete(targetPath);

    // Try to download a file that does not exist:
    success = http.DownloadAppend("https://chilkatsoft.com/testData/does_not_exist.txt",targetPath);
    statusCode = http.get_LastStatus();
    if (statusCode == 0) {
        // Unable to either send the request or get the response.
        Log.i(TAG, http.lastErrorText());
        }
    else {
        // We got a response, and we already know it wasn't a 200 success response.
        // It should be a 404 not found.
        Log.i(TAG, "Response status code: " + String.valueOf(statusCode));
        // Examine the response body.
        Log.i(TAG, "Response body:");
        Log.i(TAG, http.lastResponseBody());
        }


  }

  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."
  }
}