(Chilkat for Android™ API)
Iterate over Direct Child Nodes by Index

Demonstrates some ways to iterate over direct child nodes by index.

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

<root>
    <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>
</root>

Download: Chilkat for Android™ Java 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 {
  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    TextView tv = new TextView(this);
    String outStr = "";

    CkXml xml = new CkXml();
    CkXml child;

    boolean success;
    //  The sample input XML is available at http://www.chilkatsoft.com/data/get_child.xml
    success = xml.LoadXmlFile("get_child.xml");
    if (success != true) {
        outStr += xml.lastErrorText() + "\n";
        tv.setText(outStr);
        setContentView(tv);
        return;
    }

    //  The NumChildren property contains the number of direct
    //  child nodes.  Note: The child nodes under "xyz" are NOT
    //  direct children of "root".  Therefore, the "root" node has
    //  7 direct children
    outStr += "NumChildren = " + xml.get_NumChildren() + "\n";

    //  Iterate over the direct children by index. The first child
    //  is at index 0.
    int i;
    for (i = 0; i <= xml.get_NumChildren() - 1; i++) {
        //   access the tag and content directly by index:
        outStr += i + ": " + xml.getChildTagByIndex(i)
             + " : " + xml.getChildContentByIndex(i) + "\n";

    }

    outStr += "-----" + "\n";

    //  Do the same as the above loop, but get the child node
    //  and access the Tag and Content properties:
    for (i = 0; i <= xml.get_NumChildren() - 1; i++) {
        child = xml.GetChild(i);
        outStr += i + ": " + child.tag()
             + " : " + child.content() + "\n";

    }

    outStr += "-----" + "\n";

    //  Do the same as the above loop, but instead of creating
    //  a new object instance for each child, call GetChild2 to
    //  update the object's reference instead.
    for (i = 0; i <= xml.get_NumChildren() - 1; i++) {
        //  Navigate to the Nth child.
        xml.GetChild2(i);
        outStr += i + ": " + xml.tag()
             + " : " + xml.content() + "\n";
        //  Navigate back up to the parent:
        xml.GetParent2();
    }

    outStr += "-----" + "\n";

    //  Notice that the Content of the "xyz" node is empty.  This is correct.
    //  The "xyz" node has no Content, but 2 direct children.

    tv.setText(outStr);
    setContentView(tv);
  }

  static {
      // Important: Make sure the name passed to loadLibrary matches the shared library
      // found in your project's libs/armeabi directory.
      //  for "libchilkat.so", pass "chilkat" to loadLibrary
      //  for "libchilkatemail.so", pass "chilkatemail" to loadLibrary
      //  etc.
      // 
      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."
  }
}