Android Seek Bar

Android Development

 Android Seek Bar :-

⇛ layout > .xml file : 

<?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=".First"

android:padding="5dp"

android:orientation="vertical"

android:gravity="center">

<TextView

android:id="@+id/Idtextview1"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:padding="20dp"

android:textColor="#000"

android:textAlignment="center"

android:textAllCaps="false"

android:textStyle="bold"

android:text="I love Programming"/>

<SeekBar

android:id="@+id/Idseekbar1"

style="@style/Widget.AppCompat.SeekBar.Discrete"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:max="50"

android:padding="10dp"

android:progress="20" />

</LinearLayout>

⇛ java file :

package com.example.dell.seekbar;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.widget.SeekBar;

import android.widget.TextView;

public class First extends AppCompatActivity {

private SeekBar seekBar;

private TextView textView;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_first);

seekBar = (SeekBar) findViewById(R.id.Idseekbar1);

textView = (TextView) findViewById(R.id.Idtextview1);

seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

@Override

public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

textView.setTextSize(progress);

}

@Override

public void onStartTrackingTouch(SeekBar seekBar) {

}

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

}

});

}

}