Data-Recover-Android/app/src/main/java/com/datarecovery/master/widget/InformationSwitchBanner.java

package com.datarecovery.master.widget;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.text.TextUtils;
import android.util.Pair;
import android.view.LayoutInflater;
import android.view.View;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.TranslateAnimation;
import android.widget.ViewSwitcher;

import com.datarecovery.master.databinding.ViewHomePageSwitchTextBinding;

import java.util.List;

public class InformationSwitchBanner implements ViewSwitcher.ViewFactory, View.OnClickListener {

    private static final int DURATION = 1500;
    private final Context context;
    private final ViewSwitcher viewSwitcher;
    private final Handler handler = new Handler();
    LayoutInflater inflater;
    private List<Pair<CharSequence, CharSequence>> texts;
    private int marker;
    private AnimationSet InAnimationSet;
    private AnimationSet OutAnimationSet;
    private int delayTime = 1500;
    private OnSwitchListener onSwitchListener;

    public InformationSwitchBanner(Context context, ViewSwitcher textSwitcher) {
        this.context = context;
        this.viewSwitcher = textSwitcher;
        inflater = LayoutInflater.from(context);
        init();
    }

    private void init() {
        viewSwitcher.setFactory(this);
        setText("", "");
        createAnimation();
        viewSwitcher.setInAnimation(InAnimationSet);
        viewSwitcher.setOutAnimation(OutAnimationSet);
        viewSwitcher.setOnClickListener(this);
    }

    private void setText(CharSequence left, CharSequence right) {
        ViewHomePageSwitchTextBinding binding = ViewHomePageSwitchTextBinding.bind(viewSwitcher.getNextView());
        binding.tvSwitchText.setText(left);
        binding.tvSwitchDate.setText(right);
        binding.tvSwitchText.setVisibility(TextUtils.isEmpty(left) ? View.GONE : View.VISIBLE);
        binding.tvSwitchDate.setVisibility(TextUtils.isEmpty(right) ? View.GONE : View.VISIBLE);
        viewSwitcher.showNext();
    }

    public void setTextColor(Drawable leftDrawable, int padding, int prefixColor, int suffixColor) {
        ViewHomePageSwitchTextBinding currentView = ViewHomePageSwitchTextBinding.bind(viewSwitcher.getCurrentView());
        ViewHomePageSwitchTextBinding nextView = ViewHomePageSwitchTextBinding.bind(viewSwitcher.getNextView());

        currentView.tvSwitchText.setTextColor(prefixColor);
        nextView.tvSwitchText.setTextColor(prefixColor);

        currentView.tvSwitchDate.setTextColor(suffixColor);
        nextView.tvSwitchDate.setTextColor(suffixColor);

        leftDrawable.setBounds(0, 0, leftDrawable.getMinimumWidth(), leftDrawable.getMinimumHeight());
        currentView.tvSwitchText.setCompoundDrawablePadding(padding);
        nextView.tvSwitchText.setCompoundDrawablePadding(padding);
        currentView.tvSwitchText.setCompoundDrawables(leftDrawable, null, null, null);
        nextView.tvSwitchText.setCompoundDrawables(leftDrawable, null, null, null);
    }

    @Override
    public View makeView() {
        ViewHomePageSwitchTextBinding viewHomePageSwitchTextBinding = ViewHomePageSwitchTextBinding.inflate(inflater);
        return viewHomePageSwitchTextBinding.getRoot();
    }

    @Override
    public void onClick(View v) {

    }

    public void update(List<Pair<CharSequence, CharSequence>> list) {
        if (list == null || list.size() == 0) {
            return;
        }
        stop();
        texts = list;
        marker = 0;
        Pair<CharSequence, CharSequence> firstTxt = texts.get(0);
        setText(firstTxt.first, firstTxt.second);
        start();
    }

    public void start() {
        stop();
        handler.postDelayed(task, delayTime);
    }

    public void stop() {
        handler.removeCallbacks(task);
    }

    public int getMarker() {
        return marker;
    }

    public InformationSwitchBanner setTexts(List<Pair<CharSequence, CharSequence>> texts) {
        this.texts = texts;
        return this;
    }

    public void setDelayTime(int delayTime) {
        this.delayTime = delayTime;
    }

    private void createAnimation() {
        AlphaAnimation alphaAnimation;
        TranslateAnimation translateAnimation;

        int h = viewSwitcher.getHeight();
        if (h <= 0) {
            viewSwitcher.measure(0, 0);
            h = viewSwitcher.getMeasuredHeight();
        }

        InAnimationSet = new AnimationSet(true);
        OutAnimationSet = new AnimationSet(true);

        alphaAnimation = new AlphaAnimation(0, 1);
        translateAnimation = new TranslateAnimation(Animation.ABSOLUTE, 0, Animation.ABSOLUTE, 0,
                Animation.ABSOLUTE, h, Animation.ABSOLUTE, 0);
        InAnimationSet.addAnimation(alphaAnimation);
        InAnimationSet.addAnimation(translateAnimation);
        InAnimationSet.setDuration(DURATION);

        alphaAnimation = new AlphaAnimation(1, 0);
        translateAnimation = new TranslateAnimation(Animation.ABSOLUTE, 0, Animation.ABSOLUTE, 0,
                Animation.ABSOLUTE, 0, Animation.ABSOLUTE, -h);
        OutAnimationSet.addAnimation(alphaAnimation);
        OutAnimationSet.addAnimation(translateAnimation);
        OutAnimationSet.setDuration(DURATION);
    }

    private void nextView() {
        if (onSwitchListener != null) {
            onSwitchListener.preSwitch();
        }
        marker = ++marker % texts.size();
        Pair<CharSequence, CharSequence> nextTxt = texts.get(marker);
        setText(nextTxt.first, nextTxt.second);
        if (onSwitchListener != null) {
            onSwitchListener.onSwitch();
        }
    }

    public void setOnSwitchListener(OnSwitchListener listener) {
        this.onSwitchListener = listener;
    }

    public interface OnSwitchListener {
        void preSwitch();

        void onSwitch();
    }

    private final Runnable task = new Runnable() {
        @Override
        public void run() {
            nextView();
            handler.postDelayed(task, delayTime * 2L);
        }
    };
}