get Field from Class by name - Android java.lang.reflect

Android examples for java.lang.reflect:Field Name

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Description

get Field from Class by name

Demo Code


//package com.java2s;

import android.util.NoSuchPropertyException;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

public class Main {
    public static Field getField(Class clazz, String name)
            throws NoSuchPropertyException {
        if (clazz == null || clazz == Object.class) {
            throw new NoSuchPropertyException("Field not found: " + name);
        }//  ww  w . j  a  va2s.  c om
        Field field;
        try {
            field = clazz.getDeclaredField(name);
        } catch (NoSuchFieldException e) {
            field = getField(clazz, clazz.getSuperclass(), name);
        }
        if (Modifier.isPrivate(field.getModifiers())) {
            field.setAccessible(true);
        }
        return field;
    }

    private static Field getField(Class root, Class clazz, String name) {
        if (clazz == null || clazz == Object.class) {
            throw new NoSuchPropertyException("Field [" + name
                    + "] not found in " + root.getName());
        }
        Field field;
        try {
            field = clazz.getDeclaredField(name);
        } catch (NoSuchFieldException e) {
            field = getField(clazz, clazz.getSuperclass(), name);
        }
        if (Modifier.isPrivate(field.getModifiers())) {
            field.setAccessible(true);
        }
        return field;
    }
}

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