Android中如何处理ListView点击

Android中如何处理ListView点击

xml
    android:id="@+id/listView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

java
ArrayList dataList = new ArrayList<>();
dataList.add("数据项1");
dataList.add("数据项2");
dataList.add("数据项3");
...

java
ArrayAdapter adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, dataList);

java
ListView listView = findViewById(R.id.listView);
listView.setAdapter(adapter);

java
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView parent, View view, int position, long id) {
        String item = dataList.get(position);
        Toast.makeText(MainActivity.this, "点击了：" + item, Toast.LENGTH_SHORT).show();
    }
});

java
public class MainActivity extends AppCompatActivity {
    ArrayList dataList;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // 准备数据源
        dataList = new ArrayList<>();
        dataList.add("数据项1");
        dataList.add("数据项2");
        dataList.add("数据项3");
        // 创建适配器
        ArrayAdapter adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, dataList);
        // 设置适配器
        ListView listView = findViewById(R.id.listView);
        listView.setAdapter(adapter);
        // 处理点击事件
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView parent, View view, int position, long id) {
                String item = dataList.get(position);
                Toast.makeText(MainActivity.this, "点击了：" + item, Toast.LENGTH_SHORT).show();
            }
        });
    }
}