Android Seekbar

An Android SeekBar is a widget that provides a slider control for the user to select a value from a range of values. It consists of a draggable thumb, which the user can move along a horizontal or vertical line to select a value. Here is an example of how to use a SeekBar in Android:

Example:

1. Add the SeekBar element to your layout XML file:

<SeekBar
  android:id="@+id/seekBar"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:max="100"
  android:progress="50" />

This code creates a SeekBar with a maximum value of 100 and an initial progress value of 50.

2. In your activity or fragment, create a reference to the SeekBar:

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

3. Optionally, you can set the progress programmatically:

seekBar.setProgress(75);  

4. To get the current progress value, you can use the getProgress() method:

int progress = seekBar.getProgress();  

5. You can also set a listener to be notified when the progress changes:

seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
    @Override
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
        // Do something when the progress changes
    }

    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {
        // Called when the user starts dragging the thumb
    }

    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {
        // Called when the user stops dragging the thumb
    }
});

This code sets a listener that is notified when the user changes the progress of the SeekBar.

Uses:

• SeekBars are commonly used to select a value from a range of values, such as selecting a font size or volume level.
• They can be customized to fit the design of your app by using custom drawables or styles.
• SeekBars can also be used in combination with other UI elements, such as TextViews, to display the selected value in real time.