如何將TextView添加到當前布局，以便填充微調器？

Question

這是我要獲取的布局。 只要我實際上不嘗試填充微調器，一切就很好了。 根據我在搜索和日志中找到的內容，我需要將TextView與ArrayAdapter一起使用。 在保留當前布局的同時，我該怎么做-微調器和頂部的一個帶有ListView的提交按鈕，用於在微調器下方返回結果，這是我難以實現的。

這是我的onCreate方法。

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.master);
        DBHelper db = new DBHelper(this);
        List<Stations> st = db.getAllStations();
        List<CharSequence> stations = new ArrayList<CharSequence>();
        setList(4, 9);
        for (int i = 0; i < st.size(); i++)
        {
            stations.add(st.get(i).getStation());
        }
        ListView list = (ListView) findViewById(R.id.list);
        Spinner s1 = (Spinner) findViewById(R.id.spinnerStart);
        Spinner s2 = (Spinner) findViewById(R.id.spinnerEnd);

        ArrayAdapter<CharSequence> SimpleSpinner1 = new ArrayAdapter<CharSequence>(this, R.layout.spinner, R.id.textView1);
        ArrayAdapter<CharSequence> SimpleSpinner2 = new ArrayAdapter<CharSequence>(this, R.layout.spinner, R.id.textView1);
        SimpleAdapter nSchedule = new SimpleAdapter(this, departures, R.layout.row,
            new String[] {"train", "from", "to"}, new int[] {R.id.TRAIN_CELL, R.id.FROM_CELL, R.id.TO_CELL});
        for (CharSequence c : stations)
        {
            SimpleSpinner1.add(c);
            SimpleSpinner2.add(c);
        }
    list.setAdapter(nSchedule);
    s2.setAdapter(SimpleSpinner2);
    s1.setAdapter(SimpleSpinner1);

    }

master.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <Spinner
        android:id="@+id/spinnerStart"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true" />

    <Spinner
        android:id="@+id/spinnerEnd"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/spinnerStart" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/spinnerEnd"
        android:text="Button" />

    <include
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/button1"
        layout="@layout/listview" />

</RelativeLayout>

spinner.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="30dp" >

        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/textView1"
            android:textAppearance="?android:attr/textAppearanceLarge" />

    </RelativeLayout>

Answer 1

嘗試這個

// set id for spinner
spinner2 = (Spinner) findViewById(R.id.spinner2);
// prepare a list 
List<String> list = new ArrayList<String>();
    list.add("list 1");
    list.add("list 2");
    list.add("list 3");
// set adapter for spinner
    ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this,
        android.R.layout.simple_spinner_item, list);
    dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// set adapter to spinner   
spinner2.setAdapter(dataAdapter);

Answer 2

您需要傳遞R.id.spinnerEnd而不是R.id.spinnerStart / R.id.spinnerEnd

編輯：

Spinner spinner1 =（Spinner）findViewById（R.id.spinner1）; ArrayAdapter adapter = new ArrayAdapter（this，R.layout.spinner_item，R.id.textView1）; spinner1.setAdapter（adapter）;

textView1存在於spinner_item布局中。 希望這很清楚