(Android™) Update a String Property in XMP

Demonstrates how to open a JPG or TIF image file, access the XMP metadata, and update the value of a string property. (If the string property does not already exist, it is created.)

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);

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

    CkXmp xmp = new CkXmp();

    // Load a JPG or TIF image file.
    boolean success = xmp.LoadAppFile("qa_data/xmp/AJ_123642_1511.tif");
    if (success != true) {
        Log.i(TAG, xmp.lastErrorText());
        return;
        }

    Log.i(TAG, "Num embedded XMP docs: " + String.valueOf(xmp.get_NumEmbedded()));

    // This example assumes that XMP metadata is already present in the image file.
    if (xmp.get_NumEmbedded() == 0) {
        Log.i(TAG, "No XMP metadata already exists..");
        return;
        }

    // Get the XMP metadata.
    CkXml xml;
    xml = xmp.GetEmbedded(0);

    // Show the XML:
    Log.i(TAG, xml.getXml());

    // Update (overwrite) a string property.
    xmp.AddSimpleStr(xml,"NumberofTimes","123");

    success = xmp.SaveAppFile("qa_output/updated.tif");
    if (success != true) {
        Log.i(TAG, xmp.lastErrorText());
        return;
        }

    Log.i(TAG, "Success.");

  }

  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."
  }
}