Thursday, 14 November 2019

Display Status Using Timeline View For Android.

A timeline is a display of a list of events in chronological order. Timelines can use any suitable scale representing time, suiting the subject and data; many use a linear scale, in which a unit of distance is equal to a set amount of time.

In this tutorial, we will see how to implement timeline view in Android. Below is the mock-up how we are expected to build,

Refer the below link for complete sample code:-

Download Sample Code

Have a look on few code snippets,

 //ctimeline_row.xml
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <RelativeLayout
        android:layout_width="72dp"
        android:layout_height="match_parent">


        <View
            android:id="@+id/crowUpperLine"
            android:layout_width="25dp"
            android:layout_height="match_parent"
            android:layout_above="@+id/crowImg"
            android:layout_centerInParent="true"
            android:layout_centerVertical="true"
            android:background="@android:color/darker_gray" />

        <View
            android:id="@+id/crowLowerLine"
            android:layout_width="25dp"
            android:layout_height="match_parent"
            android:layout_below="@+id/crowImg"
            android:layout_centerInParent="true"
            android:layout_centerVertical="true"
            android:background="@android:color/darker_gray" />


        <View
            android:id="@+id/crowBackground"
            android:layout_width="25dp"
            android:layout_height="25dp"
            android:layout_centerInParent="true"
            android:layout_centerVertical="true" />

        <ImageView
            android:id="@+id/crowImg"
            android:layout_width="25dp"
            android:layout_height="25dp"
            android:layout_centerInParent="true"
            android:layout_centerVertical="true"
            android:layout_marginTop="-12.5dp"
            android:layout_marginBottom="-12.5dp" />


    </RelativeLayout>

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingLeft="16dp"
        android:paddingBottom="10dp"
        android:paddingRight="16dp">

        <TextView
            android:id="@+id/crowDate"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Date"
            android:paddingTop="10dp"
            android:textAppearance="?android:attr/textAppearanceSmall" />

        <TextView
            android:id="@+id/crowTitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/crowDate"
            android:layout_centerVertical="true"
            android:text="Title"
            android:textAppearance="?android:attr/textAppearanceListItem"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/crowDesc"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/crowTitle"
            android:layout_centerVertical="true"
            android:text="Description"
            android:textAppearance="?android:attr/textAppearanceSearchResultSubtitle" />

        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:background="#d7f2eb"
            />
    </RelativeLayout>

</LinearLayout>

//activity_main.xml
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <ListView
        android:id="@+id/timeline_listView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:divider="@null"
        android:dividerHeight="0dp" />
</LinearLayout>

//TimelineRow.java
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package com.elitetechnologies.timelineview.TimelineView;


import android.graphics.Bitmap;

import java.util.Date;


public class TimelineRow {

    private int id;
    private Date date = null;
    private String title = null;
    private String description = null;
    private Bitmap image = null;
    private int bellowLineColor = 0;
    private int bellowLineSize = 6;
    private int imageSize = 50;
    private int backgroundColor = 0;
    private int backgroundSize = 50;
    private int dateColor = 0;
    private int titleColor = 0;
    private int descriptionColor = 0;

    public TimelineRow(int id) {
        this.id = id;
    }

    public TimelineRow(int id, Date date) {
        this.id = id;
        this.date = date;
    }


    public TimelineRow(int id, Date date, String title, String description) {
        this.id = id;
        this.date = date;
        this.title = title;
        this.description = description;
    }

    public TimelineRow(int id, Date date, String title, String description, Bitmap image, int bellowLineColor, int bellowLineSize, int imageSize) {
        this.id = id;
        this.date = date;
        this.title = title;
        this.description = description;
        this.image = image;
        this.bellowLineColor = bellowLineColor;
        this.bellowLineSize = bellowLineSize;
        this.imageSize = imageSize;
    }

    public TimelineRow(int id, Date date, String title, String description, Bitmap image, int bellowLineColor, int bellowLineSize, int imageSize, int backgroundColor, int backgroundSize) {
        this.id = id;
        this.date = date;
        this.title = title;
        this.description = description;
        this.image = image;
        this.bellowLineColor = bellowLineColor;
        this.bellowLineSize = bellowLineSize;
        this.imageSize = imageSize;
        this.backgroundColor = backgroundColor;
        this.backgroundSize = backgroundSize;
    }

    public TimelineRow(int id, Date date, String title, String description, Bitmap image, int bellowLineColor, int bellowLineSize, int imageSize, int backgroundColor, int backgroundSize, int dateColor, int titleColor, int descriptionColor) {
        this.id = id;
        this.date = date;
        this.title = title;
        this.description = description;
        this.image = image;
        this.bellowLineColor = bellowLineColor;
        this.bellowLineSize = bellowLineSize;
        this.imageSize = imageSize;
        this.backgroundColor = backgroundColor;
        this.backgroundSize = backgroundSize;
        this.dateColor = dateColor;
        this.titleColor = titleColor;
        this.descriptionColor = descriptionColor;
    }

    public int getBackgroundSize() {
        return backgroundSize;
    }

    public void setBackgroundSize(int backgroundSize) {
        this.backgroundSize = backgroundSize;
    }

    public int getBackgroundColor() {
        return backgroundColor;
    }

    public void setBackgroundColor(int backgroundColor) {
        this.backgroundColor = backgroundColor;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public int getImageSize() {
        return imageSize;
    }

    public void setImageSize(int imageSize) {
        this.imageSize = imageSize;
    }

    public int getBellowLineSize() {
        return bellowLineSize;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public void setBellowLineSize(int bellowLineSize) {
        this.bellowLineSize = bellowLineSize;
    }

    public int getBellowLineColor() {
        return bellowLineColor;
    }

    public void setBellowLineColor(int bellowLineColor) {
        this.bellowLineColor = bellowLineColor;
    }

    public Bitmap getImage() {
        return image;
    }

    public void setImage(Bitmap image) {
        this.image = image;
    }

    public Date getDate() {
        return date;
    }

    public void setDate(Date date) {
        this.date = date;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public int getDateColor() {
        return dateColor;
    }

    public void setDateColor(int dateColor) {
        this.dateColor = dateColor;
    }

    public int getTitleColor() {
        return titleColor;
    }

    public void setTitleColor(int titleColor) {
        this.titleColor = titleColor;
    }

    public int getDescriptionColor() {
        return descriptionColor;
    }

    public void setDescriptionColor(int descriptionColor) {
        this.descriptionColor = descriptionColor;
    }

}

//TimelineViewAdapter.java
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package com.elitetechnologies.timelineview.TimelineView;



import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffColorFilter;
import android.graphics.drawable.GradientDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.elitetechnologies.timelineview.R;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;


public class TimelineViewAdapter extends ArrayAdapter<TimelineRow> {
    private Context context;
    private Resources res;
    private List<TimelineRow> RowDataList;
    private String AND;

    public TimelineViewAdapter(Context context, int resource, ArrayList<TimelineRow> objects, boolean orderTheList) {
        super(context, resource, objects);
        this.context = context;
        res = context.getResources();
        AND ="and";
        if (orderTheList)
            this.RowDataList = rearrangeByDate(objects);
        else
            this.RowDataList = objects;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        TimelineRow row = RowDataList.get(position);

        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
        View view = inflater.inflate(R.layout.ctimeline_row, null);

        TextView rowDate = (TextView) view.findViewById(R.id.crowDate);
        TextView rowTitle = (TextView) view.findViewById(R.id.crowTitle);
        TextView rowDescription = (TextView) view.findViewById(R.id.crowDesc);
        ImageView rowImage = (ImageView) view.findViewById(R.id.crowImg);
        View rowUpperLine = (View) view.findViewById(R.id.crowUpperLine);
        View rowLowerLine = (View) view.findViewById(R.id.crowLowerLine);


        final float scale = getContext().getResources().getDisplayMetrics().density;


        if (position == 0 && position == RowDataList.size() - 1) {
            rowUpperLine.setVisibility(View.INVISIBLE);
            rowLowerLine.setVisibility(View.INVISIBLE);
        } else if (position == 0) {
            int pixels = (int) (row.getBellowLineSize() * scale + 0.5f);

            rowUpperLine.setVisibility(View.INVISIBLE);
            rowLowerLine.setBackgroundColor(row.getBellowLineColor());
            rowLowerLine.getLayoutParams().width = pixels;
        } else if (position == RowDataList.size() - 1) {
            int pixels = (int) (RowDataList.get(position - 1).getBellowLineSize() * scale + 0.5f);

            rowLowerLine.setVisibility(View.INVISIBLE);
            rowUpperLine.setBackgroundColor(RowDataList.get(position - 1).getBellowLineColor());
            rowUpperLine.getLayoutParams().width = pixels;
        } else {
            int pixels = (int) (row.getBellowLineSize() * scale + 0.5f);
            int pixels2 = (int) (RowDataList.get(position - 1).getBellowLineSize() * scale + 0.5f);

            rowLowerLine.setBackgroundColor(row.getBellowLineColor());
            rowUpperLine.setBackgroundColor(RowDataList.get(position - 1).getBellowLineColor());
            rowLowerLine.getLayoutParams().width = pixels;
            rowUpperLine.getLayoutParams().width = pixels2;
        }

        if (position == 0 ||  position == RowDataList.size() - 1) {
            Bitmap tintBitmap = tintImage(BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_srcdstpoint), Color.parseColor("#c44227"));
            row.setImage(tintBitmap);
        }else{
            Bitmap tintBitmap = tintImage(BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_nodes), Color.parseColor("#f29d9d"));
            row.setImage(tintBitmap);
        }

        if(position<=2) {
            row.setBellowLineSize(12);
            row.setBellowLineColor(Color.parseColor("#9df2b1"));
        }


        rowDate.setText(getPastTime(row.getDate()));
        if (row.getDateColor() != 0)
            rowDate.setTextColor(row.getDateColor());
        if (row.getTitle() == null)
            rowTitle.setVisibility(View.GONE);
        else {
            rowTitle.setText(row.getTitle());
            if (row.getTitleColor() != 0)
                rowTitle.setTextColor(row.getTitleColor());
        }
        if (row.getDescription() == null)
            rowDescription.setVisibility(View.GONE);
        else {
            rowDescription.setText(row.getDescription());
            if (row.getDescriptionColor() != 0)
                rowDescription.setTextColor(row.getDescriptionColor());
        }

        if (row.getImage() != null) {
            rowImage.setImageBitmap(row.getImage());
        }

        int pixels = (int) (row.getImageSize() * scale + 0.5f);
        rowImage.getLayoutParams().width = pixels;
        rowImage.getLayoutParams().height = pixels;

        View backgroundView = view.findViewById(R.id.crowBackground);
        if (row.getBackgroundColor() == 0)
            backgroundView.setBackground(null);
        else {
            if (row.getBackgroundSize() == -1) {
                backgroundView.getLayoutParams().width = pixels;
                backgroundView.getLayoutParams().height = pixels;
            } else {
                int BackgroundPixels = (int) (row.getBackgroundSize() * scale + 0.5f);
                backgroundView.getLayoutParams().width = BackgroundPixels;
                backgroundView.getLayoutParams().height = BackgroundPixels;
            }
            GradientDrawable background = (GradientDrawable) backgroundView.getBackground();
            if (background != null) {
                background.setColor(row.getBackgroundColor());
            }
        }


        ViewGroup.MarginLayoutParams marginParams = (ViewGroup.MarginLayoutParams) rowImage.getLayoutParams();
        marginParams.setMargins(0, (int) (pixels / 2) * -1, 0, (pixels / 2) * -1);

        return view;
    }

    private String getPastTime(Date date) {

        if (date == null) return "";
        StringBuilder dateText = new StringBuilder();
        Date today = new Date();
        long diff = (today.getTime() - date.getTime()) / 1000;

        long years = diff / (60 * 60 * 24 * 30 * 12);
        long months = (diff / (60 * 60 * 24 * 30)) % 12;
        long days = (diff / (60 * 60 * 24)) % 30;
        long hours = (diff / (60 * 60)) % 24;
        long minutes = (diff / 60) % 60;
        long seconds = diff % 60;

        if (years > 0) {
            appendPastTime(dateText, years, R.plurals.years, months, R.plurals.months);
        } else if (months > 0) {
            appendPastTime(dateText, months, R.plurals.months, days, R.plurals.days);
        } else if (days > 0) {
            appendPastTime(dateText, days, R.plurals.days, hours, R.plurals.hours);
        } else if (hours > 0) {
            appendPastTime(dateText, hours, R.plurals.hours, minutes, R.plurals.minutes);
        } else if (minutes > 0) {
            appendPastTime(dateText, minutes, R.plurals.minutes, seconds, R.plurals.seconds);
        } else if (seconds >= 0) {
            dateText.append(res.getQuantityString(R.plurals.seconds, (int) seconds, (int) seconds));
        }

        return dateText.toString();
    }

    private void appendPastTime(StringBuilder s,
                                long timespan, int nameId,
                                long timespanNext, int nameNextId) {

        s.append(res.getQuantityString(nameId, (int) timespan, timespan));
        if (timespanNext > 0) {
            s.append(' ').append(AND).append(' ');
            s.append(res.getQuantityString(nameNextId, (int) timespanNext, timespanNext));
        }
    }

    private ArrayList<TimelineRow> rearrangeByDate(ArrayList<TimelineRow> objects) {
        if (objects.get(0) == null) return objects;
        int size = objects.size();
        for (int i = 0; i < size - 1; i++) {
            for (int j = i + 1; j < size; j++) {
                if(objects.get(i).getDate()!= null && objects.get(j).getDate() != null)
                    if (objects.get(i).getDate().compareTo(objects.get(j).getDate()) <= 0)
                        Collections.swap(objects, i, j);
            }

        }
        return objects;
    }

    private static Bitmap tintImage(Bitmap bitmap, int color) {
        Paint paint = new Paint();
        paint.setColorFilter(new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_IN));
        Bitmap bitmapResult = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmapResult);
        canvas.drawBitmap(bitmap, 0, 0, paint);
        return bitmapResult;
    }
}

//MainActivity.java
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package com.elitetechnologies.timelineview;

import android.annotation.SuppressLint;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.Toast;

import com.elitetechnologies.timelineview.TimelineView.TimelineRow;
import com.elitetechnologies.timelineview.TimelineView.TimelineViewAdapter;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Random;
import java.util.concurrent.ThreadLocalRandom;

public class MainActivity extends AppCompatActivity {

    //Create Timeline Rows List
    private ArrayList<TimelineRow> timelineRowsList = new ArrayList<>();
    ArrayAdapter<TimelineRow> myAdapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);// Create Timeline rows List
        // Add Random Rows to the List
        for (int i = 0; i < 15; i++) {
            //add the new row to the list
            timelineRowsList.add(createRandomTimelineRow(i));
        }
        //Create the Timeline Adapter
        myAdapter = new TimelineViewAdapter(this, 0, timelineRowsList,
                //if true, list will be sorted by date
                true);
        //Get the ListView and Bind it with the Timeline Adapter
        ListView timeline_listView = (ListView) findViewById(R.id.timeline_listView);
        timeline_listView.setAdapter(myAdapter);
        myAdapter.notifyDataSetChanged();

        //if you wish to handle the clicks on the rows
        AdapterView.OnItemClickListener adapterListener = new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                TimelineRow row = timelineRowsList.get(position);
                Toast.makeText(MainActivity.this, row.getTitle()+"at position"+position, Toast.LENGTH_SHORT).show();
            }
        };
        timeline_listView.setOnItemClickListener(adapterListener);
    }

    //Method to create new Timeline Row
    private TimelineRow createRandomTimelineRow(int id) {
        // Create new timeline row (pass your Id)
        TimelineRow myRow = new TimelineRow(id);

        //to set the row Date (optional)
        myRow.setDate(getRandomDate());
        //to set the row Title (optional)
        myRow.setTitle("Title " + id);
        myRow.setTitleColor(Color.parseColor("#3295a8"));
        //to set the row Description (optional)
        myRow.setDescription("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
        myRow.setDescriptionColor(Color.parseColor("#32a8a4"));
        //to set row Below Line Color (optional)
        myRow.setBellowLineColor(Color.LTGRAY);
        return myRow;
    }

    @SuppressLint("NewApi")
    public Date getRandomDate() {
        SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
        Date startDate = null;
        Date endDate = new Date();
        try {
            startDate = sdf.parse("14/02/2020");
            long random = ThreadLocalRandom.current().nextLong(startDate.getTime(), endDate.getTime());
            endDate = new Date(random);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return endDate;
    }

}
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