MainActivity.java

MainActivity.java

package com.example.administrador.myapplication2;

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;

public class MainActivity extends AppCompatActivity {

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

        Button btnCliqueAqui = (Button) findViewById(R.id.btnCliqueAqui);

        btnCliqueAqui.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {

                EditText edtNomeCampo = (EditText) findViewById(R.id.edtNomeCampo);

                Toast.makeText(
                        getApplicationContext(),
                        edtNomeCampo.getText(),
                        Toast.LENGTH_SHORT
                ).show();
            }
        });
    }

//    public void cliqueAqui(View v) {
//        Log.d("Log", "Clicou no botão");
//    }
}