Aplicación Formulario (primera parte) del Curso de desarrollo de aplicaciones Android

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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"
    tools:context="com.danielalvarez.formulario.MainActivity">


    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">


        <Button
            android:layout_width="200dp"
            android:layout_height="48dp"
            android:layout_centerHorizontal="true"
            android:layout_centerVertical="true"
            android:onClick="mostrarSnackbar"
            android:text="@string/mostrarMensaje" />

    </RelativeLayout>


    <android.support.design.widget.FloatingActionButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="16dp"
        android:onClick="abrirFormularrio"
        android:src="@mipmap/ic_add_white_36dp" />


</android.support.design.widget.CoordinatorLayout>

activity_segunda.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.danielalvarez.formulario.SegundaActivity">

    <android.support.design.widget.TextInputLayout
        android:id="@+id/nombreTextInputLayout"
        android:layout_width="match_parent"
        android:layout_height="72dp">

        <EditText
            android:id="@+id/nombreEditText"
            android:layout_width="match_parent"
            android:layout_height="36dp"
            android:hint="@string/nombre" />

    </android.support.design.widget.TextInputLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">


        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/sexo" />

        <RadioGroup
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="2"
            android:orientation="horizontal">


            <RadioButton
                android:id="@+id/masculinoRadioButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/masculino" />

            <RadioButton
                android:id="@+id/femeninoRadioButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:checked="true"
                android:text="@string/femenino" />

        </RadioGroup>
    </LinearLayout>


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center_vertical"
            android:text="@string/intereses" />

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical">

            <CheckBox
                android:id="@+id/javaCheckBox"
                android:layout_width="wrap_content"
                android:layout_height="36dp"
                android:text="@string/java" />

            <CheckBox
                android:id="@+id/swiftCheckBox"
                android:layout_width="wrap_content"
                android:layout_height="36dp"
                android:text="@string/swift" />

            <CheckBox
                android:id="@+id/csharpCheckBox"
                android:layout_width="wrap_content"
                android:layout_height="36dp"
                android:text="@string/csharp" />
        </LinearLayout>


    </LinearLayout>


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:orientation="horizontal">

        <android.support.design.widget.TextInputLayout
            android:id="@+id/correoTextInputLayout"
            android:layout_width="0dp"
            android:layout_height="48dp"
            android:layout_weight="1">

            <EditText
                android:id="@+id/emailEditText"
                android:layout_width="match_parent"
                android:layout_height="48dp"
                android:hint="@string/correo" />

        </android.support.design.widget.TextInputLayout>


        <android.support.design.widget.TextInputLayout
            android:id="@+id/telefonoTextInputLayout"
            android:layout_width="0dp"
            android:layout_height="48dp"
            android:layout_weight="1">

            <EditText
                android:id="@+id/telefonoEditText"
                android:layout_width="match_parent"
                android:layout_height="48dp"
                android:hint="@string/telefono" />

        </android.support.design.widget.TextInputLayout>


    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:orientation="horizontal">

        <TextView
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center_vertical"
            android:text="@string/enviarCorreos" />

        <Switch
            android:id="@+id/correosSwitch"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:checked="true" />

    </LinearLayout>

    <Button
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:onClick="enviarFormulario"
        android:text="@string/enviar" />

</LinearLayout>

build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId "com.danielalvarez.formulario"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:design:23.4.0'
}

MainActivity.java

package com.danielalvarez.formulario;

import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

public class MainActivity extends AppCompatActivity {

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

    public void mostrarSnackbar(View view) {
        Snackbar.make(view, R.string.hola, Snackbar.LENGTH_LONG).show();
    }

    public void abrirFormularrio(View view) {
        Intent intent = new Intent(this, SegundaActivity.class);
        startActivity(intent);
    }
}

SegundaActivity.java

package com.danielalvarez.formulario;

import android.os.Bundle;
import android.support.design.widget.TextInputLayout;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.util.Patterns;
import android.view.View;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.Switch;

import java.util.regex.Pattern;

public class SegundaActivity extends AppCompatActivity {

    private EditText nombreEditText;
    private EditText correoEditText;
    private EditText telefonoEditText;

    private TextInputLayout nombreTextInputLayout;
    private TextInputLayout correoTextInputLayout;
    private TextInputLayout telefonoTextInputLayout;

    private RadioButton masculinoRadioButton;
    private RadioButton femeninoRadioButton;

    private CheckBox javaCheckBox;
    private CheckBox swiftCheckBox;
    private CheckBox csharpCheckBox;

    private Switch correosSwitch;


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

        nombreEditText = (EditText) findViewById(R.id.nombreEditText);
        correoEditText = (EditText) findViewById(R.id.emailEditText);
        telefonoEditText = (EditText) findViewById(R.id.telefonoEditText);

        nombreTextInputLayout = (TextInputLayout) findViewById(R.id.nombreTextInputLayout);
        correoTextInputLayout = (TextInputLayout) findViewById(R.id.correoTextInputLayout);
        telefonoTextInputLayout = (TextInputLayout) findViewById(R.id.telefonoTextInputLayout);

        masculinoRadioButton = (RadioButton) findViewById(R.id.masculinoRadioButton);
        femeninoRadioButton = (RadioButton) findViewById(R.id.femeninoRadioButton);

        javaCheckBox = (CheckBox) findViewById(R.id.javaCheckBox);
        swiftCheckBox = (CheckBox) findViewById(R.id.swiftCheckBox);
        csharpCheckBox = (CheckBox) findViewById(R.id.csharpCheckBox);

        correosSwitch = (Switch) findViewById(R.id.correosSwitch);
    }

    public void enviarFormulario(View view) {

        String nombre = nombreEditText.getText().toString();
        String correo = correoEditText.getText().toString();
        String telefono = telefonoEditText.getText().toString();

        if (esNombreValido(nombre)) {

            if (esCorreoValido(correo)) {

                if (esTelefonoValido(telefono)) {

                    Log.i("MIFOR", nombre);
                    Log.i("MIFOR", correo);
                    Log.i("MIFOR", telefono);

                    if (masculinoRadioButton.isChecked()) {
                        Log.i("MIFOR", "Es masculino");
                    } else {
                        Log.i("MIFOR", "Es femenino");
                    }

                    Log.i("MIFOR", "Intereses");
                    if (javaCheckBox.isChecked()) {
                        Log.i("MIFOR", " Java");
                    }
                    if (swiftCheckBox.isChecked()) {
                        Log.i("MIFOR", " Swift");
                    }
                    if (csharpCheckBox.isChecked()) {
                        Log.i("MIFOR", " CSharp");
                    }

                    if (correosSwitch.isChecked()) {
                        Log.i("MIFOR", "Si enviar correos");
                    } else {
                        Log.i("MIFOR", "No enviar correos");
                    }
                    
                } else {
                    telefonoTextInputLayout.setError(getString(R.string.telefono_invalido));
                }

            } else {
                correoTextInputLayout.setError(getString(R.string.correo_invalido));
            }

        } else {
            nombreTextInputLayout.setError(getString(R.string.nombre_invalido));

//            Toast.makeText(getApplicationContext(), R.string.informacion_invalida, Toast.LENGTH_LONG).show();
        }

    }

    private boolean esNombreValido(String nombre) {
        Pattern patron = Pattern.compile("^[a-zA-Z ]+$");
        return patron.matcher(nombre).matches();
    }

    public boolean esTelefonoValido(String telefono) {
        return Patterns.PHONE.matcher(telefono).matches();
    }

    public boolean esCorreoValido(String correo) {
        return Patterns.EMAIL_ADDRESS.matcher(correo).matches();
    }

}