单击时如何触发微调器事件？

Question

我遵循了一些例子。他们正在介绍如下方式。但是当我尝试这样做时，出现了这个错误

java.lang.RuntimeException: Don't call setOnClickListener for an AdapterView. You probably want setOnItemClickListener instead
    at android.widget.AdapterView.setOnClickListener(AdapterView.java:1224)
    at com.jakchang.savelocation.databinding.ActivityViewmemoBindingImpl.executeBindings(ActivityViewmemoBindingImpl.java:174)

我只是按照示例进行操作，但它对我不起作用。

需要帮助..提前致谢

 resList = res.getStringArray(R.array.font_spinner);

    SpinnerAdapter spinnerAdapter= new ArrayAdapter(this,R.layout.support_simple_spinner_dropdown_item,resList);
        binding.fontlist.setAdapter(spinnerAdapter);
        binding.fontlist.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(getApplicationContext(),"Item : "+binding.fontlist.getItemAtPosition(position),Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        });

Answer 1

您的代码片段不完整，但我尝试在自己的 activity 中实现它，因此请检查以下代码并将其与您的解决方案进行比较。我觉得应该可以。

public class MainActivity extends AppCompatActivity {
    Spinner spinner;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        spinner = findViewById(R.id.spinner);
        SpinnerAdapter spinnerAdapter= new ArrayAdapter(this, android.R.layout.simple_spinner_item, getResources().getStringArray(R.array.font_spinner));
        spinner.setAdapter(spinnerAdapter);
        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(getApplicationContext(),"Item : "+ spinner.getItemAtPosition(position),Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        });
    }
}

首先您需要获取视图并将其存储在带有 findViewById(R.id.spinner) 的 class 变量中，当然您必须在 xml 文件中设置 ID。接下来在 ArrayAdapter 中使用 android.R.layout.simple_spinner_item 只是为了保持简单。最后在 spinner 对象上设置适配器和监听器。

单击时如何触发微调器事件？

How can I trigger spinner event when on click?

java

adapter

android-spinner