单击旋转器时，将显示项目名称，而不是项目的数值

Question

我创建了一个旋转器，每次我点击项目时，它都会显示项目名称。
但是我想要toast item的数值。
这是我的main.java文件。

    Spinner spinner1, spinner2;
    private Button btnSubmit;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        addListenerOnSpinnerItemSelection();
    }
    // add items into spinner dynamically
    public void addListenerOnSpinnerItemSelection() {
        spinner1 = (Spinner) findViewById(R.id.spinner1);
        spinner1.setOnItemSelectedListener(new CustomOnItemSelectedListener());
    }
}

这是我的CustomOnItemSelectedListener.java文件。

    package com.dev.app.dropdown;
    import android.view.View;
    import android.widget.AdapterView;
    import android.widget.Toast;

    public class CustomOnItemSelectedListener implements     AdapterView.OnItemSelectedListener {
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
        Toast.makeText(parent.getContext(),
                "OnItemSelectedListener:" +     parent.getItemAtPosition(pos).toString(),
                Toast.LENGTH_SHORT).show();
    }
    @Override
    public void onNothingSelected(AdapterView<?> parent) {
        // TODO Auto-generated method stub
    }
}

Answer 1

请尝试以下代码。

spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                Spinner MySpinner = (Spinner) findViewById(R.id.spinner);
                Integer indexValue = MySpinner.getSelectedItemPosition();
                Toast.makeText(EditPlanActivity.this, "value" + indexValue + " pos " + position, Toast.LENGTH_LONG).show();
            }
            @Override
            public void onNothingSelected(AdapterView<?> parent) {
            }
        });

Answer 2

不使用

parent.getItemAtPosition(pos).toString()

使用

Spinner.getSelectedItem().toString();

完整代码:

@Override
    public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
  String selectItem = Spinner.getSelectedItem().toString();
  Toast.makeText(parent.getContext(),
                "OnItemSelectedListener:" +  selectItem,
                Toast.LENGTH_SHORT).show();
    }
    @Override
    public void onNothingSelected(AdapterView<?> parent) {
        // TODO Auto-generated method stub
    }
}