[9] Rating Bar

1. Rating Bar

Layout

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.example.sin.custombutton.MainActivity" android:orientation="vertical"> <RatingBar android:id="@+id/rating" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center"/> <TextView android:id="@+id/rating_num" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center" android:hint="점수표시"/> </LinearLayout>

* RatingBar 와 결과를 확인할 TextView 추가.

Activity

public class MainActivity extends AppCompatActivity { RatingBar rating; TextView rating_num; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); rating_num = (TextView)findViewById(R.id.rating_num); rating = (RatingBar)findViewById(R.id.rating); rating.setNumStars(6); rating.setIsIndicator(false); rating.setStepSize(0.5f); rating.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() { @Override public void onRatingChanged(RatingBar ratingBar, float v, boolean b) { rating_num.setText(String.format("getNumStars : %d, setStepSize : %.1f", rating.getNumStars(), v)); } }); } }

* setNumStarts() 로 별 개수 세팅.

* setIsIndicator() : false - 별 수정 가능, true - 수정 불가능

* setStepSize() : 별 반개당 점수

* setOnRatingBarChangeListener() : 별점 수정시 마다 호출됨.

* onRatingChanged() : float v - 총점수

2. 결과 화면