CODEWITHSUNDEEP
androidchronometer
user2980816
user2980816

Reputation: 61

Chronometer stopwatch: Time keeps increasing in background when stop is pushed

When I press the stop button it stops the time from being viewed but still increments in the background. When I press start it shows the entire time that it was stopped. Does anyone know how to make stop actually stop?

import android.app.Fragment;
import android.os.Bundle;
import android.os.SystemClock;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.Chronometer;

public class StopwatchFragment extends Fragment implements OnClickListener {


    public StopwatchFragment() {
        // Required empty public constructor
    }


    Button startChron;
    Button stopChron;
    Button resetChron;
    private Chronometer chron;



    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

    }
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        // Inflate the layout for this fragment
        View v = inflater.inflate(R.layout.fragment_stopwatch_main, container, false);
        getActivity().getActionBar()
                .setTitle("Stopwatch");
        startChron = (Button)v.findViewById(R.id.start);
               startChron.setOnClickListener(this);
        stopChron = (Button)v.findViewById(R.id.stop);
               stopChron.setOnClickListener(this);
        resetChron = (Button)v.findViewById(R.id.reset);
               resetChron.setOnClickListener(this);
        chron = (Chronometer) v.findViewById(R.id.chronometer);
        return v;


    }

    @Override
    public void onClick(View v) {
        if (v == startChron){
            chron.start();
        }
        else if (v == stopChron){
            chron.stop();
        }
        else if (v == resetChron){
            chron.setBase(SystemClock.elapsedRealtime());
        }
    }
}

Upvotes: 0

Views: 567

Answers (2)

David Guerrero
David Guerrero

Reputation: 1080

You're going to have to save in a variable the time when the chrono is paused. Something like this:

difference = chron.getBase() - SystemClock.elapsedRealtime();

And then to set the time when resume:

time = timeDifference + SystemClock.elapsedRealtime()

Upvotes: 1

Shadab Ansari
Shadab Ansari

Reputation: 7070

It is because calling stop() doesn't changes your Chronometer base as set using setBase(). If you want to make your Chronometer start afresh, then everytime you call start() you need to setBase() before it.

chron.setBase(SystemClock.elapsedRealtime());

Check this.

Upvotes: 0

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