Best Way to Create Timer App in Android

Hello Guys! in this article, I will tell you about an android app concept of timer app. Many people ask me that how can we create a timer app in android. So if you also have this question and if you are finding the best way to create timer app in android then you are at right place. Here you can get information for the best way to create timer app in android. In this article, you can get the source code for creating a timer app in android.

Source code for Timer App in Android

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
android:background="@drawable/background"
tools:context="sumit.net.timerapp.MainActivity">

<TextView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:id="@+id/timer"
android:textSize="40dp"
android:textColor="#000000"
android:text="00:00:00"
android:paddingLeft="100dp"
android:paddingTop="50dp"/>
<Button
android:layout_width="match_parent"
android:layout_height="50sp"
android:layout_below="@+id/timer"
android:layout_marginTop="20dp"
android:text="Start"
android:background="@drawable/button"
android:paddingLeft="20dp"
android:id="@+id/start"
/>
<Button
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_below="@+id/start"
android:layout_marginTop="20dp"
android:text="Pause"
android:background="@drawable/button"
android:paddingLeft="10dp"
android:id="@+id/pause"
/>

</RelativeLayout>

MainActivity.java

package sumit.net.timerapp;

import android.animation.TimeAnimator;
import android.media.TimedText;
import android.os.Handler;
import android.os.SystemClock;
import android.os.health.TimerStat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.format.Time;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.TimePicker;

import org.w3c.dom.Text;

import java.util.Timer;

public class MainActivity extends AppCompatActivity {
TextView t1;
Button b1,b2;
long startTime=0L;
private Handler customHandler=new Handler();
long timeInMilliseconds=0L;
long timeSwapBuff=0L;
long updateTime=0L;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
t1=(TextView)findViewById(R.id.timer);
b1=(Button)findViewById(R.id.start);
b2=(Button)findViewById(R.id.pause);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startTime= SystemClock.uptimeMillis();
customHandler.postDelayed(updateTimerThread, 0);
}
});
b2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
timeSwapBuff +=timeInMilliseconds;
customHandler.removeCallbacks(updateTimerThread);
}
});

}
private Runnable updateTimerThread=new Runnable() {
@Override
public void run() {
timeInMilliseconds=SystemClock.uptimeMillis()-startTime;
updateTime=timeSwapBuff+timeInMilliseconds;
int sec=(int) (updateTime/600);
int mins=sec/60;
sec=sec%60;
int milliseconds=(int) (updateTime%100);
t1.setText(""+ mins + ":"+ String.format("%02d",sec)+ ":"+String.format("%03d",milliseconds));
customHandler.postDelayed(this,0);
}
};
}

Output of Time App

Conclusion

So you got information about the best way to create a timer app in android. I hope you understand the method to create a timer app in android. Thank you for reading this article till the end. If you love this article then please share this article in your social media platforms. And share your thought in the comment section below. If you have any question regarding this article then write your question in the comment section. I will try to give the answer to them.