RecyclerViewTest.zip

package com.example.recyclerviewtest; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.support.v7.widget.StaggeredGridLayoutManager; import java.util.ArrayList; import java.util.List; import java.util.Random; public class MainActivity extends AppCompatActivity { private List<Fruit> fruitList = new ArrayList<Fruit>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initFruits(); RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view); StaggeredGridLayoutManager layoutManager = new StaggeredGridLayoutManager(3, StaggeredGridLayoutManager.VERTICAL); recyclerView.setLayoutManager(layoutManager); FruitAdapter adapter = new FruitAdapter(fruitList); recyclerView.setAdapter(adapter); } private void initFruits() { for (int i = 0; i < 2; i++) { Fruit apple = new Fruit(getRandomLengthName("Apple"), R.drawable.apple_pic); fruitList.add(apple); Fruit banana = new Fruit(getRandomLengthName("Banana"), R.drawable.banana_pic); fruitList.add(banana); Fruit orange = new Fruit(getRandomLengthName("Orange"), R.drawable.orange_pic); fruitList.add(orange); Fruit watermelon = new Fruit(getRandomLengthName("Watermelon"), R.drawable.watermelon_pic); fruitList.add(watermelon); Fruit pear = new Fruit(getRandomLengthName("Pear"), R.drawable.pear_pic); fruitList.add(pear); Fruit grape = new Fruit(getRandomLengthName("Grape"), R.drawable.grape_pic); fruitList.add(grape); Fruit pineapple = new Fruit(getRandomLengthName("Pineapple"), R.drawable.pineapple_pic); fruitList.add(pineapple); Fruit strawberry = new Fruit(getRandomLengthName("Strawberry"), R.drawable.strawberry_pic); fruitList.add(strawberry); Fruit cherry = new Fruit(getRandomLengthName("Cherry"), R.drawable.cherry_pic); fruitList.add(cherry); Fruit mango = new Fruit(getRandomLengthName("Mango"), R.drawable.mango_pic); fruitList.add(mango); } } private String getRandomLengthName(String name) { Random random = new Random(); int length = random.nextInt(20) + 1; StringBuilder builder = new StringBuilder(); for (int i = 0; i < length; i++) { builder.append(name); } return builder.toString(); } }