Returns a custom color attribute from AttributeSet - Android android.util

Android examples for android.util:AttributeSet

  1. HOME
  2. Android
  3. android.util
  4. AttributeSet

Description

Returns a custom color attribute from AttributeSet

Demo Code


//package com.java2s;
import android.content.Context;
import android.content.res.TypedArray;

import android.util.AttributeSet;
import android.view.View;

public class Main {
    /**/*w  ww  . ja va2s. c  o m*/
     * Returns a custom color attribute
     * @param   view   The view the attribute is associated with
     * @param   attrs   The AttributeSet to pull the attribute from
     * @param   attributeList   A list of attributes
     * @param   attributeIndex   The attribute index to retrieve from the list
     * @return   A color based on the arguments provided
     */
    public static int getColorFromAttribute(View view, AttributeSet attrs,
            int[] attributeList, int attributeIndex) {
        int id = getResourceId(view.getContext(), attrs, attributeList,
                attributeIndex);

        if (id > 0) {
            return view.getResources().getColor(id);
        } else {
            return -1;
        }
    }

    /**
     * Retrieve the resourceId of custom attributes
     * @param   context   The context of the View
     * @param   attrs   The attribute set of the view
     * @param   attributeList   A list of attributes
     * @param   attributeIndex   The attribute index to retrieve from the list
     * @return   A resourceId that matches the arguments provided
     */
    private static int getResourceId(Context context, AttributeSet attrs,
            int[] attributeList, int attributeIndex) {
        TypedArray typedArray = context.obtainStyledAttributes(attrs,
                attributeList);
        int resourceId = typedArray.getResourceId(attributeIndex, 0);
        typedArray.recycle();

        return resourceId;
    }
}

Related Tutorials