Resize a Java array : Array « Date Type « Android

1. Android
2. Date Type
3. Array

Resize a Java array

  
//package ca.chaves.familyBrowser.helpers;

import java.lang.reflect.Array;

/**
 * This class is our utility belt. It contains all static functions which do not
 * fit anywhere else.
 * 
 * @author "David Chaves <david@chaves.ca>"
 */
class Utils {

    /**
     * Resize a Java array
     *
     * @param oldArray
     * @param minimumSize
     * @return the new Java array
     */
    public static Object resizeArray(final Object oldArray, final int minimumSize) {
        final Class<?> cls = oldArray.getClass();
        if (!cls.isArray()) {
            return null;
        }
        final int oldLength = Array.getLength(oldArray);
        int newLength = oldLength + (oldLength / 2); // 50% more
        if (newLength < minimumSize) {
            newLength = minimumSize;
        }
        final Class<?> componentType = oldArray.getClass().getComponentType();
        final Object newArray = Array.newInstance(componentType, newLength);
        System.arraycopy(oldArray, 0, newArray, 0, oldLength);
        return newArray;
    }
}

   
    
  

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