(Android™) XML SearchForAttribute Method

Demonstrates the SearchForAttribute method.

The input XML, available at http://www.chilkatsoft.com/data/fruitSearch.xml, is this:

<root>
    <searchRoot>
        <fruit color="red">apple</fruit>
        <fruit color="green">pear</fruit>
        <veg color="orange">carrot</veg>
        <meat animal="cow">beef</meat>
        <xyz>
            <fruit color="blue">blueberry</fruit>
            <veg color="green">broccoli</veg>
        </xyz>
        <fruit color="purple">grape</fruit>
        <cheese color="yellow">cheddar</cheese>
    </searchRoot>
    <fruit color="red">strawberry</fruit>
    <fruit color="orange">peach</fruit>
</root>

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);

    CkXml xml = new CkXml();
    CkXml xSearchRoot;
    CkXml xBeginAfter;
    CkXml xFound;

    boolean success = xml.LoadXmlFile("qa_data/xml/fruitSearch.xml");
    if (success != true) {
        Log.i(TAG, xml.lastErrorText());
        return;
        }

    // Search the sub-tree rooted at "searchRoot"
    xSearchRoot = xml.FindChild("searchRoot");
    if (xml.get_LastMethodSuccess() == false) {
        Log.i(TAG, "searchRoot not found, searching from root.");
        xSearchRoot = xml.GetRoot();
        }

    // Search for all "fruit" nodes having a color attribute
    // where the name of the color ends in "e"
    xBeginAfter = xSearchRoot.GetSelf();
    xFound = xSearchRoot.SearchForAttribute(xBeginAfter,"fruit","color","*e");
    while ((xSearchRoot.get_LastMethodSuccess() == true)) {

        Log.i(TAG, xFound.content() + ": " + xFound.getAttrValue("color"));

        xBeginAfter = xFound;
        xFound = xSearchRoot.SearchForAttribute(xBeginAfter,"fruit","color","*e");
        }

    // The correct output is:
    // grape: purple
    // blueberry: blue

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

    // ---------------------------------------------------------------------------------
    // Now do the same, but instead use SearchForAttribute2
    // which updates the internal reference of the caller instead
    // of returning the found node.
    CkXml xSearch;

    xBeginAfter = xSearchRoot.GetSelf();
    xSearch = xSearchRoot.GetSelf();

    success = xSearch.SearchForAttribute2(xBeginAfter,"fruit","color","*e");
    while (success == true) {

        Log.i(TAG, xSearch.content() + ": " + xSearch.getAttrValue("color"));

        // Copy the internal references so that the next search
        // begins after the found node.
        xBeginAfter.CopyRef(xSearch);
        xSearch.CopyRef(xSearchRoot);

        success = xSearch.SearchForAttribute2(xBeginAfter,"fruit","color","*e");
        }


  }

  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."
  }
}