MainActivity.java

package com.baruberbagi.customloading;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    Button btn_login;

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

        btn_login = findViewById(R.id.button);
        final LoadingDialog loadingDialog = new LoadingDialog(MainActivity.this);

        btn_login.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                loadingDialog.startLoadingDialog();

                //jika kalian ingin menambahkan batas waktu loading silahkan ketik atau copy paste code dibawah ini
                Handler handler = new Handler();
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        loadingDialog.dismissDialog();
                    }
                }, 5000);
            }
        });
    }
}