MainActivity

package com.example.myapplication;

import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Handler;
import android.support.design.widget.TextInputLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.androidnetworking.AndroidNetworking;
import com.androidnetworking.common.Priority;
import com.androidnetworking.error.ANError;
import com.androidnetworking.interfaces.JSONObjectRequestListener;

import org.json.JSONObject;

import static android.app.ProgressDialog.show;

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "MainActivity";
    private EditText InputEmail, InputPassword;
    private Button ButtonLogin;

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

        Log.d(TAG, "onCreate: inisialisasi");

        InputPassword = (EditText) findViewById(R.id.input_password);
        InputEmail = (EditText) findViewById(R.id.input_email);
        ButtonLogin= (Button) findViewById(R.id.btn_login);

        AndroidNetworking.initialize(getApplicationContext());

        ButtonLogin.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                String email = InputEmail.getText().toString().trim();
                String password = InputPassword.getText().toString().trim();
                if (email.equals("")||password.equals("")){
                    Toast.makeText(getApplicationContext(), "Semuda data harus diisi", Toast.LENGTH_SHORT).show();
                } else {
                    requestLogin(email, password);

                    InputEmail.setText("");
                    InputPassword.setText("");
                }

            }

        });

    }

    private void requestLogin(String email, String password) {
        AndroidNetworking.post("http://localhost:8000/api/login")
                .addBodyParameter("id", "")
                .addBodyParameter("email",email)
                .addBodyParameter("password", password)
                .setPriority(Priority.MEDIUM)
                .build()
                .getAsJSONObject(new JSONObjectRequestListener() {
                    @Override
                    public void onResponse(JSONObject response) {
                        Log.d(TAG, "onResponse: " + response);
                        Toast.makeText(getApplicationContext(),"Berhasil login" , Toast.LENGTH_SHORT).show();
                        Intent intent = new Intent(getApplicationContext(), Home.class);
                        startActivity(intent);
                    }

                    @Override
                    public void onError(ANError anError) {
                        Log.d(TAG, "onError: Failed" + anError);
                        Toast.makeText(getApplicationContext(),"Login gagal, periksa kembali email dan password!", Toast.LENGTH_SHORT).show();
                    }
                });
    }
}