<com.andy7.myviewdemo.widget.MySpinner
    android:id="@+id/myspinner"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

</com.andy7.myviewdemo.widget.MySpinner>


HashMap hashMap = new HashMap<>();
hashMap.put(1, "GREEN");
hashMap.put(2, "RED");
hashMap.put(3, "BLUE");
myspinner.setHashMap(hashMap);
myspinner.setOnSelectorItemKeyValue(new MySpinner.OnSelectorItemKeyValue() {
    @Override
    public void obtainKeyValue(int key, String value) {
        Log.i(TAG, "obtainKeyValue: " + key + "---->" + value);
    }
});