Android Open Source - Kodesearch Roboto Button

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The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

/*
 * Copyright (C) 2013 Evgeny Shishkin/* w w w  . j  a  va  2s . c  o m*/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.kodesearch.external;



import com.kodesearch.R;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.widget.Button;



/**
 * Implementation of a {@link Button} with native support for all the Roboto fonts.
 *
 * @author Evgeny Shishkin
 */
public class RobotoButton extends Button {

    /**
     * Simple constructor to use when creating a widget from code.
     *
     * @param context The Context the widget is running in, through which it can
     *                access the current theme, resources, etc.
     */
    public RobotoButton(Context context) {
        super(context);
        onInitTypeface(context, null, 0);
    }

    /**
     * Constructor that is called when inflating a widget from XML. This is called
     * when a widget is being constructed from an XML file, supplying attributes
     * that were specified in the XML file. This version uses a default style of
     * 0, so the only attribute values applied are those in the Context's Theme
     * and the given AttributeSet.
     * <p/>
     * <p/>
     * The method onFinishInflate() will be called after all children have been
     * added.
     *
     * @param context The Context the widget is running in, through which it can
     *                access the current theme, resources, etc.
     * @param attrs   The attributes of the XML tag that is inflating the widget.
     * @see #RobotoButton(Context, AttributeSet, int)
     */
    public RobotoButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        onInitTypeface(context, attrs, 0);
    }

    /**
     * Perform inflation from XML and apply a class-specific base style. This
     * constructor of View allows subclasses to use their own base style when
     * they are inflating.
     *
     * @param context  The Context the widget is running in, through which it can
     *                 access the current theme, resources, etc.
     * @param attrs    The attributes of the XML tag that is inflating the widget.
     * @param defStyle The default style to apply to this widget. If 0, no style
     *                 will be applied (beyond what is included in the theme). This may
     *                 either be an attribute resource, whose value will be retrieved
     *                 from the current theme, or an explicit style resource.
     * @see #RobotoButton(Context, AttributeSet)
     */
    public RobotoButton(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        onInitTypeface(context, attrs, defStyle);
    }

    /**
     * Setup Roboto typeface.
     *
     * @param context  The Context the widget is running in, through which it can
     *                 access the current theme, resources, etc.
     * @param attrs    The attributes of the XML tag that is inflating the widget.
     * @param defStyle The default style to apply to this widget. If 0, no style
     *                 will be applied (beyond what is included in the theme).
     */
    private void onInitTypeface(Context context, AttributeSet attrs, int defStyle) {
        // Typeface.createFromAsset doesn't work in the layout editor, so skipping.
        if (isInEditMode()) {
            return;
        }

        int typefaceValue = 0;
        if (attrs != null) {
            TypedArray values = context.obtainStyledAttributes(attrs, R.styleable.RobotoTextView, defStyle, 0);
            typefaceValue = values.getInt(R.styleable.RobotoTextView_typeface, 0);
            values.recycle();
        }

        Typeface robotoTypeface = RobotoTypefaceManager.obtaintTypeface(context, typefaceValue);
        setTypeface(robotoTypeface);
    }

}

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