在Android中创建SeekBar位置弹出窗口

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="16dp"
    android:paddingTop="16dp"
    android:paddingRight="16dp"
    android:paddingBottom="16dp"
    tools:context=".MainActivity">

    <SeekBar
        android:id="@+id/seekBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:max="100" />

    <TextView
        android:id="@+id/valueTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/seekBar"
        android:layout_marginTop="16dp"
        android:text="SeekBar Value: 0"
        android:textSize="16sp" />

</RelativeLayout>

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.widget.SeekBar;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    private SeekBar seekBar;
    private TextView valueTextView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

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

        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                valueTextView.setText("SeekBar Value: " + progress);
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                // Do nothing
            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                showPopupWindow(seekBar.getProgress());
            }
        });
    }

    private void showPopupWindow(int progress) {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("SeekBar Value")
                .setMessage("The current value is: " + progress)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                })
                .create()
                .show();
    }
}