Android™

Upload File with User-Defined Metadata

See more Amazon S3 Examples

Demonstrates how to upload a file with user-defined metadata to the Amazon S3 service. 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 assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttp http = new CkHttp();

    // Insert your AWS keys here:
    http.put_AwsAccessKey("AWS_ACCESS_KEY");
    http.put_AwsSecretKey("AWS_SECRET_KEY");

    String bucketName = "chilkat.ocean";
    String objectName = "seahorse.jpg";
    String localFilePath = "qa_data/jpg/seahorse.jpg";
    String contentType = "image/jpg";

    // User-defined metadata are name/value pairs, and are added to the HTTP request header.
    // Header names must begin with "x-amz-meta-" to distinguish them from other HTTP headers.
    // Note that Amazon S3 stores user-defined metadata keys in lowercase.

    // For example, to add genus=Hippocampus, we do this:
    http.SetRequestHeader("x-amz-meta-genus","Hippocampus");

    // Add a few more user-metadata key pairs.
    http.SetRequestHeader("x-amz-meta-species","big-belly seahorse");
    http.SetRequestHeader("x-amz-meta-habitat","shallow tropical and temperate waters");

    success = http.S3_UploadFile(localFilePath,contentType,bucketName,objectName);

    if (success != true) {
        Log.i(TAG, http.lastErrorText());
        }
    else {
        Log.i(TAG, "File uploaded.");
        }


  }

  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."
  }
}