Android 简单微调器下拉项

Question

在我的 android 应用程序中，我使用微调器来呈现国家/地区的名称。以下是我的代码：

XML

<Spinner
   android:id="@+id/intCountry"
   android:layout_weight="7"
   android:layout_width="0dp"
   android:layout_height="38dp"
   android:background="#FFFFFF"
   android:entries="@array/intCountry"
   android:layout_gravity="center_horizontal"
   android:textAppearance="?android:attr/textAppearanceMedium"
   />

Java - 版本 1

//Country Spinner
        country = (Spinner) findViewById( R.id.intCountry );
        String[] countries = getResources().getStringArray( R.array.intCountry );
        ArrayAdapter<String> countryAdapter = new ArrayAdapter<>( this, R.layout.support_simple_spinner_dropdown_item, countries );
        countryAdapter.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item );
        country.setOnItemSelectedListener( new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                selCountry = (String) parent.getItemAtPosition(position);
            }
            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        } );

Java - 版本 2

//Country Spinner
        country = (Spinner) findViewById( R.id.intCountry );
        ArrayAdapter<CharSequence> countAdapter = ArrayAdapter.createFromResource( this,R.array.intCountry,android.R.layout.simple_spinner_dropdown_item );
        countAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        country.setAdapter( countAdapter );
        country.setOnItemSelectedListener( new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                selCountry = (String) parent.getItemAtPosition(position);
            }
            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        } );

这两个选项都呈现一个简单而精简的 select 选项弹出窗口。我正在尝试使用单选按钮样式 select 选项导出全屏 select 选项。

我得到的结果如下：

我要的是这个：

Answer 1

试试这个代码段，下面的代码行将在您的微调器值中设置单选按钮

yourAdapterInstance.setDropDownViewResource(android.R.layout.select_dialog_singlechoice);

对于全屏模式，您可以在 xml 文件中设置此属性

android:spinnerMode="dialog" // This will open spinner items in dialog.

Android 简单微调器下拉项

Android Simple Spinner Dropdown Item

android

spinner