Spinner +BaseAdapter 自定义 弹出框

一共三个文件 一个 MainActivity.java  ba.java（自定义baseadapter）  还有一个简单的 布局文件activity_main.xml

MainActivity.java文件代码：

public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ba b = new ba(this);
        Spinner s = ((Spinner) findViewById(R.id.spinner1));
        s.setAdapter(b);

    }

 

ba.java代码：

public class ba extends BaseAdapter {
    private Context context;

    public ba(Context context) {
        this.context = context;
    }

    public int getCount() {
        // TODO Auto-generated method stub
        return 10;
    }

    public Object getItem(int position) {
        return null;
    }

    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return 0;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        LinearLayout line = new LinearLayout(context);
        line.setOrientation(0);
        ImageView img = new ImageView(context);
        img.setImageResource(R.drawable.a1);
        TextView t = new TextView(context);
        t.setText(position+"");
        line.addView(img);
        line.addView(t);
        return line;
    }

}

布局页面xml：

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

    <Spinner
        android:id="@+id/spinner1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_marginTop="64dp" />

</RelativeLayout>

 

效果：

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