java - android - 如何发送微调器的值？

Question

我很难将微调器的值发送到我的网络服务器。我的表单上有一些文本区域和一个微调器。我可以获得文本区域的值，将其发布到我的服务器并将它们保存到数据库中。但我似乎无法找到一种方法来用微调器做到这一点。

有人能帮忙吗？

主要 Activity .java:

        Spinner spinner = (Spinner) findViewById(R.id.spinner);

        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
        R.array.planets_array, android.R.layout.simple_spinner_item);
                               adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        spinner.setAdapter(adapter);



    etPostCode = (EditText) findViewById(R.id.etPostCode);
    etAddress1 = (EditText) findViewById(R.id.etAddress1);
    etRecordNum = (EditText) findViewById(R.id.etRecordNum);
    etContainerType = (EditText) findViewById(R.id.etContainerType);
    etContainerSize = (EditText) findViewById(R.id.etContainerSize);
    etContainerSerial = (EditText) findViewById(R.id.etContainerSerial);

}

public void signup(View v) {
    String postCode = etPostCode.getText().toString();
    String address1 = etAddress1.getText().toString();
    String recordNum = etRecordNum.getText().toString();
    String containerType = etContainerType.getText().toString();
    String containerSize = etContainerSize.getText().toString();
    String containerSerial = etContainerSerial.getText().toString();


    Toast.makeText(this, "Adding Record...", Toast.LENGTH_SHORT).show();
    new SignupActivity(this).execute(postCode, address1, recordNum, containerType, containerSize, containerSerial);
}

我在 conent_main.xml 中的 Spinner:

    <Spinner
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/spinner"
    android:layout_marginTop="30dp"
    android:layout_gravity="center_horizontal" />

我尝试使用 String spinner = Spinner.getSelectedItem().toSting();

但是我得到了错误:

不能从静态上下文中引用非静态方法“getSelectedItem()”

Answer 1

尝试在微调器上添加监听器:

AdapterView.OnItemSelectedListener mSelectedItemListener = new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {

                String spinner = mSpinner.getSelectedItem().toString();

        }

        @Override
        public void onNothingSelected(AdapterView<?> adapterView) {}
};

然后在你的微调器上设置监听器:

mSpinner.setOnItemSelectedListener(mSelectedItemListener);