com.quran.labs.androidquran.ui.preference.SeekBarPreference.java Source code

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Here is the source code for com.quran.labs.androidquran.ui.preference.SeekBarPreference.java

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/* The following code was written by Matthew Wiggins 
 * and is released under the APACHE 2.0 license 
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 */

package com.quran.labs.androidquran.ui.preference;

import android.content.Context;
import android.graphics.Color;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;
import android.os.Build;
import android.preference.Preference;
import android.support.annotation.NonNull;
import android.support.v4.content.ContextCompat;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.SeekBar;
import android.widget.TextView;

import com.quran.labs.androidquran.R;
import com.quran.labs.androidquran.data.Constants;
import com.quran.labs.androidquran.util.QuranUtils;

public class SeekBarPreference extends Preference implements SeekBar.OnSeekBarChangeListener {

    private static final String ANDROID_NS = "http://schemas.android.com/apk/res/android";

    private Context mContext;
    private SeekBar mSeekBar;
    private TextView mValueText;

    private String mSuffix;
    private int mTintColor;
    private int mCurrentValue;
    private int mDefault, mMax, mValue = 0;

    public SeekBarPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        mContext = context;
        mSuffix = attrs.getAttributeValue(ANDROID_NS, "text");
        mDefault = attrs.getAttributeIntValue(ANDROID_NS, "defaultValue", Constants.DEFAULT_TEXT_SIZE);
        mMax = attrs.getAttributeIntValue(ANDROID_NS, "max", 100);
        setLayoutResource(R.layout.seekbar_pref);
        mTintColor = ContextCompat.getColor(context, R.color.accent_color);
    }

    @Override
    protected View onCreateView(ViewGroup parent) {
        View view = super.onCreateView(parent);
        mSeekBar = (SeekBar) view.findViewById(R.id.seekbar);
        mValueText = (TextView) view.findViewById(R.id.value);
        mSeekBar.setOnSeekBarChangeListener(this);
        styleSeekBar();
        return view;
    }

    private void styleSeekBar() {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
            final Drawable progressDrawable = mSeekBar.getProgressDrawable();
            if (progressDrawable != null) {
                if (progressDrawable instanceof LayerDrawable) {
                    LayerDrawable ld = (LayerDrawable) progressDrawable;
                    int layers = ld.getNumberOfLayers();
                    for (int i = 0; i < layers; i++) {
                        ld.getDrawable(i).mutate().setColorFilter(mTintColor, PorterDuff.Mode.SRC_ATOP);
                    }
                } else {
                    progressDrawable.mutate().setColorFilter(mTintColor, PorterDuff.Mode.SRC_ATOP);
                }
            }

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
                final Drawable thumb = mSeekBar.getThumb();
                if (thumb != null) {
                    thumb.mutate().setColorFilter(mTintColor, PorterDuff.Mode.SRC_ATOP);
                }
            }
        }
    }

    @Override
    protected void onBindView(@NonNull View view) {
        super.onBindView(view);
        if (isEnabled()) {
            final TextView tv = (TextView) view.findViewById(android.R.id.title);
            if (tv != null) {
                tv.setTextColor(Color.WHITE);
            }
        }
        mValue = shouldPersist() ? getPersistedInt(mDefault) : 0;
        mSeekBar.setMax(mMax);
        mSeekBar.setProgress(mValue);
    }

    @Override
    protected void onSetInitialValue(boolean restore, Object defaultValue) {
        super.onSetInitialValue(restore, defaultValue);
        if (restore) {
            mValue = shouldPersist() ? getPersistedInt(mDefault) : 0;
        } else {
            mValue = (Integer) defaultValue;
        }
    }

    @Override
    public void onProgressChanged(SeekBar seek, int value, boolean fromTouch) {
        String t = QuranUtils.getLocalizedNumber(mContext, value);
        mValueText.setText(mSuffix == null ? t : t.concat(mSuffix));
        mCurrentValue = value;
    }

    public void onStartTrackingTouch(SeekBar seek) {
    }

    public void onStopTrackingTouch(SeekBar seek) {
        if (shouldPersist()) {
            persistInt(mCurrentValue);
            callChangeListener(mCurrentValue);
        }
    }
}