arun.com.chromer.settings.widgets.PreferenceIconLayoutHelper.java Source code

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Here is the source code for arun.com.chromer.settings.widgets.PreferenceIconLayoutHelper.java

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/*
 * Lynket
 *
 * Copyright (C) 2019 Arunkumar
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package arun.com.chromer.settings.widgets;

import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.support.annotation.ColorInt;
import android.support.annotation.NonNull;
import android.support.v4.graphics.drawable.DrawableCompat;
import android.support.v7.preference.PreferenceViewHolder;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;

import com.mikepenz.iconics.IconicsDrawable;

import arun.com.chromer.util.Utils;
import timber.log.Timber;

/**
 * Created by Arun on 23/06/2016.
 */
class PreferenceIconLayoutHelper {

    @ColorInt
    private static final int CHECKED_COLOR = Color.parseColor("#757575");
    @ColorInt
    private static final int UNCHECKED_COLOR = Color.parseColor("#C5C5C5");

    private PreferenceIconLayoutHelper() {
        throw new AssertionError();
    }

    /**
     * Applies layout changes on the preference icon view so that it does not look overly big.
     *
     * @param holder  the preference view holder
     * @param checked if the preference is enabled
     */
    static void applyLayoutChanges(@NonNull PreferenceViewHolder holder, boolean checked) {
        try {
            final LinearLayout iconFrame = (LinearLayout) holder
                    .findViewById(android.support.v7.preference.R.id.icon_frame);
            final ImageView imageView = (ImageView) holder.findViewById(android.R.id.icon);

            if (iconFrame.getMinimumWidth() != 0) {
                iconFrame.setMinimumWidth(0);
                imageView.setScaleType(ImageView.ScaleType.CENTER);
                LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                        ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
                int dp12 = Utils.dpToPx(12);
                params.setMargins(dp12, 0, dp12, 0);
                imageView.setLayoutParams(params);
            }

            applyIconTint(imageView, checked);
        } catch (Exception e) {
            Timber.e(e);
        }
    }

    /**
     * Finds the icon view and attempts to tint it based on the checked state of the preference
     *
     * @param imageView The image view of icon
     * @param checked   Whether the preference is enabled
     */
    private static void applyIconTint(@NonNull ImageView imageView, boolean checked) {
        final Drawable drawable = imageView.getDrawable();
        if (drawable != null) {
            if (drawable instanceof IconicsDrawable) {
                // Just redraw with the correct color
                imageView.setImageDrawable(
                        ((IconicsDrawable) drawable).color(checked ? CHECKED_COLOR : UNCHECKED_COLOR));
            } else {
                final Drawable wrap = DrawableCompat.wrap(drawable);
                DrawableCompat.setTint(wrap, checked ? CHECKED_COLOR : UNCHECKED_COLOR);
                imageView.setImageDrawable(drawable);
            }
        }
    }
}