ListView监听事件的添加

注意该方法在MainActivity中

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initFruits();
        FruitAdapter adapter = new FruitAdapter(MainActivity.this,
                fruitList, R.layout.fruit_item);
        ListView listView = findViewById(R.id.list_view);
        listView.setAdapter(adapter);

        listView.setOnItemClickListener((parent, view, position, id) -> {
            Fruit fruit = fruitList.get(position);
            Toast.makeText(MainActivity.this, fruit.getName(), Toast.LENGTH_SHORT).show();
        });
    }