Android CV系列 > Spinner 原生

1.第三方资源

https://github.com/arcadefire/nice-spinner

点着时候多个动画

2.原生

<!--android:dropDownWidth="300dp"    弹出的内容的宽度-->
    <!--android:spinnerMode="dialog"    下弹 或者 Dialog-->
    <!--android:overlapAnchor="false"    默认是遮住第一个的  -->
    <!--android:background="@null"   去掉三角符号  -->
    <!--android:background="@color/colorPrimary"   选中项的颜色  即背景-->
    <!--android:popupBackground="@color/colorAccent"   弹出窗的颜色-->
    <Spinner
        android:id="@+id/spinner"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

public class MainActivity extends AppCompatActivity {

    private Spinner spinner;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();

        List<String> list = new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            list.add("我是第"+i+"条");
        }
//        ArrayAdapter<String> adapter = new ArrayAdapter<String>(MainActivity.this,
//                android.R.layout.simple_spinner_dropdown_item, list);


//        adapter.setDropDownViewResource();
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.spinner_display_style,R.id.txtvwSpinner, list);
        adapter.setDropDownViewResource(R.layout.spinner_dropdown_style);

        spinner.setAdapter(adapter);
        spinner.setSelection(5);
        int selectedItemPosition = spinner.getSelectedItemPosition();
        Toast.makeText(this, ""+selectedItemPosition, Toast.LENGTH_SHORT).show();
    }

    private void initView() {
        spinner = (Spinner) findViewById(R.id.spinner);
    }
}

自定义更多一点写俩XML

spinner_display_style.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <TextView
        android:id="@+id/txtvwSpinner"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="#fff"
        android:textColor="#f00"
        android:textStyle="bold|italic" />
</LinearLayout>

spinner_dropdown_style.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <TextView
        android:id="@+id/txtvwSpinner"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#f0f"
        android:textColor="#fff0"
        android:textStyle="normal|italic" />
</LinearLayout>

https://blog.csdn.net/badboy007/article/details/19034609

如果还不行,自己写个BaseAdapter 呗....多大点事

Android CV系列 > Spinner 原生

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