커스텀 UI 스피너 만들기

일반적인 String 스피너 만들기

- SpinnerActivity.java

public class SpinnerActivity extends BaseActivity {

    private String[] mCategoryArr = null;
    private Spinner mSubjectSpinner = null;
    private String mSelectCategory = null;

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


    private void initView() {
        mSubjectSpinner = (Spinner) findViewById(R.id.subject_spinner);
        mSubjectSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> adapterView, View view, int position, long l) {
                switch (position) {
                    case 0:
                        mSelectCategory = mCategoryArr[0];
                        break;
                    
                    case 1:
                        mSelectCategory = mCategoryArr[1];
                        break;

                    case 2:
                        mSelectCategory = mCategoryArr[2];
                        break;

                }

            }


            @Override
            public void onNothingSelected(AdapterView<?> adapterView) {
                
            }

        });

    }

    private void settingView() {
        mCategoryArr = getResources().getStringArray(R.array.subject_array);
        mSelectCategory = mCategoryArr[0];
        ArrayAdapter<CharSequence> spinnerLargerAdapter = ArrayAdapter.createFromResource(this, R.array.subject_array, R.layout.spinner_item);
        mSubjectSpinner.setAdapter(spinnerLargerAdapter);
        mSubjectSpinner.setSelection(0);
    }
}

- R.layout.spinner_activity.xml

#저 같은 경우 @drawable/ic_keyboard_arrow_down_black_24dp을 drawable-hdpi폴더에만 넣어놨습니다.

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center_vertical"
    android:orientation="vertical">

    <Spinner
        android:id="@+id/free_subject_spinner"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_marginRight="10dp"
        android:background="@drawable/ic_keyboard_arrow_down_black_24dp"
        />
</LinearLayout>

- R.layout.spinner_item.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:id="@+id/spinner_title"
    android:layout_height="50dp"
    android:paddingLeft="14.62dp"
    android:textSize="16dp"
    android:textColor="@color/black_color"
    android:singleLine="true"
    android:ellipsize="marquee"
    android:background="@drawable/custom_menu_item_bg"
    android:gravity="center_vertical"/>

res\drawable\custom_menu_item_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true">
        <shape android:shape="rectangle">
            <solid android:color="#e6e6e6"/>
        </shape>
    </item>
    <item>
        <shape android:shape="rectangle">
            <solid android:color="#ffffff"/>
        </shape>
    </item>
</selector>

res\values\arrays.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string-array name="subject_array">
        <item>[건의]</item>
        <item>[후기]</item>
        <item>[기타]</item>
    </string-array>
</resources>