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Ejemplo RecyclerView de Personas
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
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="tech.alvarez.listapersonas.activities.MainActivity">
<android.support.v7.widget.RecyclerView
android:id="@+id/personasRecyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion "24.0.2"
defaultConfig {
applicationId "tech.alvarez.listapersonas"
minSdkVersion 15
targetSdkVersion 24
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:24.2.1'
testCompile 'junit:junit:4.12'
compile 'com.android.support:recyclerview-v7:24.2.1'
compile 'com.android.support:cardview-v7:24.2.1'
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp"
card_view:cardCornerRadius="4dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="8dp">
<TextView
android:id="@+id/nombresTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Maria Perez"
android:textSize="20sp" />
<TextView
android:id="@+id/ciTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="6120073"
android:textSize="16sp" />
<TextView
android:id="@+id/sexoTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Femenino"
android:textColor="@color/colorAccent"
android:textSize="12sp" />
</LinearLayout>
</android.support.v7.widget.CardView>
package tech.alvarez.listapersonas.activities;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.widget.Toast;
import tech.alvarez.listapersonas.R;
import tech.alvarez.listapersonas.adapters.OnItemClickListener;
import tech.alvarez.listapersonas.adapters.PersonasAdapter;
import tech.alvarez.listapersonas.models.Persona;
public class MainActivity extends AppCompatActivity implements OnItemClickListener{
private RecyclerView personasRecyclerView;
private PersonasAdapter personasAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
personasRecyclerView = (RecyclerView) findViewById(R.id.personasRecyclerView);
personasRecyclerView.setHasFixedSize(true);
personasRecyclerView.setLayoutManager(new LinearLayoutManager(this));
personasAdapter = new PersonasAdapter(this);
personasRecyclerView.setAdapter(personasAdapter);
// adicionar datos
personasAdapter.add(new Persona("Maria", "Perez", 1762354, "F"));
personasAdapter.add(new Persona("Juan", "Rivera", 542345, "M"));
personasAdapter.add(new Persona("Ricardo", "Gutierrez", 1937491, "M"));
}
@Override
public void onItemClick(Persona p) {
Toast.makeText(this, p.getNombres() + " " + p.getCi(), Toast.LENGTH_LONG).show();
}
}
package tech.alvarez.listapersonas.adapters;
import tech.alvarez.listapersonas.models.Persona;
public interface OnItemClickListener {
void onItemClick(Persona p);
}
package tech.alvarez.listapersonas.models;
public class Persona {
private String nombres;
private String apellidos;
private int ci;
private String sexo;
public Persona(String nombres, String apellidos, int ci, String sexo) {
this.nombres = nombres;
this.apellidos = apellidos;
this.ci = ci;
this.sexo = sexo;
}
public String getNombres() {
return nombres;
}
public void setNombres(String nombres) {
this.nombres = nombres;
}
public String getApellidos() {
return apellidos;
}
public void setApellidos(String apellidos) {
this.apellidos = apellidos;
}
public int getCi() {
return ci;
}
public void setCi(int ci) {
this.ci = ci;
}
public String getSexo() {
return sexo;
}
public void setSexo(String sexo) {
this.sexo = sexo;
}
}
package tech.alvarez.listapersonas.adapters;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.ArrayList;
import tech.alvarez.listapersonas.R;
import tech.alvarez.listapersonas.models.Persona;
public class PersonasAdapter extends RecyclerView.Adapter<PersonasAdapter.ViewHolder> {
private ArrayList<Persona> dataset;
private OnItemClickListener onItemClickListener;
public PersonasAdapter(OnItemClickListener onItemClickListener) {
this.dataset = new ArrayList<Persona>();
this.onItemClickListener = onItemClickListener;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_persona, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
Persona p = dataset.get(position);
holder.nombresTextView.setText(p.getNombres() + " " + p.getApellidos());
holder.ciTextView.setText(p.getCi() + "");
if (p.getSexo().equals("M")) {
holder.sexoTextView.setText("Masculino");
} else {
holder.sexoTextView.setText("Femenino");
}
holder.setOnItemClickListener(p, onItemClickListener);
}
@Override
public int getItemCount() {
return dataset.size();
}
public static class ViewHolder extends RecyclerView.ViewHolder {
TextView nombresTextView;
TextView ciTextView;
TextView sexoTextView;
public ViewHolder(View itemView) {
super(itemView);
nombresTextView = (TextView) itemView.findViewById(R.id.nombresTextView);
ciTextView = (TextView) itemView.findViewById(R.id.ciTextView);
sexoTextView = (TextView) itemView.findViewById(R.id.sexoTextView);
}
public void setOnItemClickListener(final Persona p, final OnItemClickListener onItemClickListener) {
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
onItemClickListener.onItemClick(p);
}
});
}
}
public void add(Persona p) {
dataset.add(p);
notifyDataSetChanged();
}
public void clear() {
dataset.clear();
notifyDataSetChanged();
}
}
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