Android：RatingBar用法

// MainActivity.java

package com.example.administrator.ratingbar;

import android.media.Rating;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.RatingBar;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private RatingBar rb;
    private RatingBar.OnRatingBarChangeListener ratingBarChangeListener = new RatingBar.OnRatingBarChangeListener() {
        @Override
        public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
            Toast.makeText(MainActivity.this, "当前星星：" + rating, Toast.LENGTH_SHORT).show();
        }
    };

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

        rb = (RatingBar)findViewById(R.id.ratingBar);

        rb.setOnRatingBarChangeListener(ratingBarChangeListener);


    }
}