Display "minutes ago" in android app

Question

I tried my best to do research and look for the tutorial, but still confused about it. My problem is, I want to display something like "minutes ago" based on create date and time I fetched from json data.

When I fetched the date and time from server I want to display it in livestatTimeAgo textview, but it show error because getTimeAgo method is in long format. So I used parseLong to change the data I fetched, but still got error. Can somebody give me hint on how to display long data to string value like this.

This is the error log:

FATAL EXCEPTION: main
Process: com.baracode.eilsan, PID: 898
                                                                 java.lang.NumberFormatException: For input string: "2017-08-25 09:20:54"
                                                                     at java.lang.Long.parseLong(Long.java:443)
                                                                     at java.lang.Long.parseLong(Long.java:485)
                                                                     at com.baracode.eilsan.livestat.adapter.LivestatAdapter.onBindViewHolder(LivestatAdapter.java:49)
                                                                     at com.baracode.eilsan.livestat.adapter.LivestatAdapter.onBindViewHolder(LivestatAdapter.java:29)
                                                                     at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:6400)
                                                                     at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:6433)
                                                                     at android.support.v7.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:5377)

This is my code

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.baracode.eilsan.R;
import com.baracode.eilsan.model.LiveFeed;

import java.text.DateFormat;
import java.text.Format;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.TimeZone;
import java.util.concurrent.TimeUnit;

/**
 * Created by kille on 17/7/2017.
 */

public class LivestatAdapter extends RecyclerView.Adapter<LivestatAdapter.MyViewHolder> {
    private final ArrayList<LiveFeed> livestatList;
    private LiveFeed liveFeed;




    public LivestatAdapter(ArrayList<LiveFeed> livestatList) {
        this.livestatList = livestatList;
    }

    @Override
    public LivestatAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_livestat, parent, false);
        return new LivestatAdapter.MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        LiveFeed livestatModel = livestatList.get(position);
        holder.livestatTimeAgo.setText(getTimeAgo(Long.parseLong(livestatModel.createdAt)));
        holder.livestatOrganisationName.setText(livestatModel.beneficiaryName);
        holder.livestatMoneyDonated.setText(livestatModel.amount);
        holder.livestatDonorName.setText(livestatModel.donorName);
    }


    @Override
    public int getItemCount() {
        return livestatList.size();
    }

    public class MyViewHolder extends RecyclerView.ViewHolder {
        TextView livestatTimeAgo, livestatDonorName, livestatOrganisationName, livestatMoneyDonated;

        public MyViewHolder(View view) {
            super(view);
            livestatTimeAgo = view.findViewById(R.id.livestat_time_ago);
            livestatOrganisationName = view.findViewById(R.id.livestat_organisation_name);
            livestatMoneyDonated = view.findViewById(R.id.livestat_money_donated);
            livestatDonorName = view.findViewById(R.id.livestat_donor_name);

        }
    }

//    private String ConvertTime(String time) {
//
//        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
//        SimpleDateFormat format1 = new SimpleDateFormat("hh:mm aa MM-dd");
//        java.util.Date date = null;
//
//        try {
//            date = format.parse(time);
//        } catch (ParseException e) {
//            e.printStackTrace();
//        }
//
//        String convertedDate = format1.format(date);
//
//        return convertedDate;
//    }

    public static String getTimeAgo(long timestamp) {

        Calendar cal = Calendar.getInstance();
        TimeZone tz = cal.getTimeZone();//get your local time zone.
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd hh:mm ss");
        sdf.setTimeZone(tz);//set time zone.
        String localTime = sdf.format(new Date(timestamp * 1000));
        Date date = new Date();
        try {
            date = sdf.parse(localTime);//get local date
        } catch (ParseException e) {
            e.printStackTrace();
        }

        if(date == null) {
            return null;
        }

        long time = date.getTime();

        Date curDate = currentDate();
        long now = curDate.getTime();
        if (time > now || time <= 0) {
            return null;
        }

        int timeDIM = getTimeDistanceInMinutes(time);

        String timeAgo = null;

        if (timeDIM == 0) {
            timeAgo = "less than a minute";
        } else if (timeDIM == 1) {
            return "1 minute";
        } else if (timeDIM >= 2 && timeDIM <= 44) {
            timeAgo = timeDIM + " minutes";
        } else if (timeDIM >= 45 && timeDIM <= 89) {
            timeAgo = "about an hour";
        } else if (timeDIM >= 90 && timeDIM <= 1439) {
            timeAgo = "about " + (Math.round(timeDIM / 60)) + " hours";
        } else if (timeDIM >= 1440 && timeDIM <= 2519) {
            timeAgo = "1 day";
        } else if (timeDIM >= 2520 && timeDIM <= 43199) {
            timeAgo = (Math.round(timeDIM / 1440)) + " days";
        } else if (timeDIM >= 43200 && timeDIM <= 86399) {
            timeAgo = "about a month";
        } else if (timeDIM >= 86400 && timeDIM <= 525599) {
            timeAgo = (Math.round(timeDIM / 43200)) + " months";
        } else if (timeDIM >= 525600 && timeDIM <= 655199) {
            timeAgo = "about a year";
        } else if (timeDIM >= 655200 && timeDIM <= 914399) {
            timeAgo = "over a year";
        } else if (timeDIM >= 914400 && timeDIM <= 1051199) {
            timeAgo = "almost 2 years";
        } else {
            timeAgo = "about " + (Math.round(timeDIM / 525600)) + " years";
        }

        return timeAgo + " ago";
    }

    public static Date currentDate() {
        Calendar calendar = Calendar.getInstance();
        return calendar.getTime();
    }

    private static int getTimeDistanceInMinutes(long time) {
        long timeDistance = currentDate().getTime() - time;
        return Math.round((Math.abs(timeDistance) / 1000) / 60);
    }



}

here my livefeed class..

public class LiveFeed {

    @SerializedName("id")
    public String id = "";

    @SerializedName("ref_id")
    public String refId = "";

    @SerializedName("beneficiary_type")
    public String beneficiaryType = "";

    @SerializedName("beneficiary_name")
    public String beneficiaryName = "";

    @SerializedName("donor_name")
    public String donorName = "";

    @SerializedName("amount")
    public String amount = "";

    @SerializedName("description")
    public String description = "";

    @SerializedName("remark")
    public String remark = "";

    @SerializedName("status")
    public String status = "";

    @SerializedName("created_at")
    public String createdAt = "";


    @SerializedName("updated_at")
    public String updatedAt = "";

    public String getId() {
        return id;
    }

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

    public String getRefId() {
        return refId;
    }

    public void setRefId(String refId) {
        this.refId = refId;
    }

    public String getBeneficiaryType() {
        return beneficiaryType;
    }

    public void setBeneficiaryType(String beneficiaryType) {
        this.beneficiaryType = beneficiaryType;
    }

    public String getBeneficiaryName() {
        return beneficiaryName;
    }

    public void setBeneficiaryName(String beneficiaryName) {
        this.beneficiaryName = beneficiaryName;
    }

    public String getDonorName() {
        return donorName;
    }

    public void setDonorName(String donorName) {
        this.donorName = donorName;
    }

    public String getAmount() {
        return amount;
    }

    public void setAmount(String amount) {
        this.amount = amount;
    }

    public String getDescription() {
        return description;
    }

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

    public String getRemark() {
        return remark;
    }

    public void setRemark(String remark) {
        this.remark = remark;
    }

    public String getStatus() {
        return status;
    }

    public void setStatus(String status) {
        this.status = status;
    }

    public String getCreatedAt() {
        return createdAt;
    }

    public void setCreatedAt(String createdAt) {
        this.createdAt = createdAt;
    }

    public String getUpdatedAt() {
        return updatedAt;
    }

    public void setUpdatedAt(String updatedAt) {
        this.updatedAt = updatedAt;
    }

}

So this is the correct answer for my question..updated code on how to get the time..for anyone who want to refer !!! thank you

DateFormat getDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String fromDate = getDate.format(Calendar.getInstance().getTime());
String endDate = livestatModel.updatedAt; //here my jsondataName

long diff = 0;
try {
    //Convert to Date
    Date startDate = getDate.parse(fromDate);
    Calendar c1 = Calendar.getInstance();
    //Change to Calendar Date
    c1.setTime(startDate);

    //Convert to Date
    Date endDate2 = getDate.parse(endDate);
    Calendar c2 = Calendar.getInstance();
    //Change to Calendar Date
    c2.setTime(endDate2);

    //get Time in milli seconds
    long ms1 = c1.getTimeInMillis();
    long ms2 = c2.getTimeInMillis();
    //get difference in milli seconds
    diff = ms1 - ms2;

    if (diff < 0) {
        holder.livestatTimeAgo.setText(" 0 day " + " 0 hour " + " 0 minute " + " 0 sec " + "left");
    } else {
        int diffInDays = (int) (diff / (1000 * 60 * 60 * 24));
        int diffInHours = (int) ((diff / (1000 * 60 * 60)) % 24);
        int diffInMinutes = (int) ((diff % (1000 * 60 * 60)) / (1000 * 60));
        int diffInSec = (int) ((diff / 1000) % 60);
        holder.livestatTimeAgo.setText(diffInDays + " days " + diffInHours + " hours " + diffInMinutes + " minutes " + diffInSec + " secs " + "Ago");
    }
}catch (Exception e){}

Answer 1

First convert your String to a calendar :

 Calendar cal = Calendar.getInstance();
 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.ENGLISH);
 cal.setTime(sdf.parse("2017-08-25 09:20:54"));

Then use

long time = cal.getTimeInMillis();

and this should to the trick.

EDIT

This is a possible example of what you want to do. I don't know if the calculations are correct but is works.

 try{

 Calendar cal = Calendar.getInstance();
 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 cal.setTime(sdf.parse("2017-08-25 09:20:54"));

  Calendar calendar = Calendar.getInstance();
  long now = calendar.getTimeInMillis();
  long time = cal.getTimeInMillis();

  long diff = now - time;

  int seconds = (int) (diff / 1000) % 60 ;
  int minutes = (int) ((diff / (1000*60)) % 60);
  int hours   = (int) ((diff / (1000*60*60)) % 24);
  int days = (int) (diff / (1000*60*60*24));

  System.out.println(time + " " + now);
  System.out.println(hours + " hours ago");
  System.out.println(minutes + " minutes ago");
  System.out.println(seconds + " seconds ago");
  System.out.println(days + " days ago");


}catch(ParseException e){
     System.out.println(e.toString());
}

Answer 2

You're getting the error in following line.

holder.livestatTimeAgo.setText(getTimeAgo(Long.parseLong(livestatModel.createdAt)));

And since the error is java.lang.NumberFormatException: For input string: "2017-08-25 09:20:54" that pretty much means livestatModel.createdAt holds 2017-08-25 09:20:54 which is more of a String value and can't be parsed to Long as it comprises syntaxes like colon, hyphen and space.

Update

To convert your date String to long, you need to parse livestatModel.createdAt with a SimpleDateFormat (like you did in getTimeAgo method but with different format).

Here's how you can achieve this.

long createdAtLong = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(livestatModel.createdAt).getTime();

holder.livestatTimeAgo.setText(getTimeAgo(createdAtLong));