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[操作系统]评分条RatingBar Android


<??><LinearLayout  ="http://schemas.android.com/apk/res/android"  android:orientation="vertical"  android:layout_width="match_parent"  android:layout_height="match_parent">  <RatingBar    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:id="@+id/ratingbar" /></LinearLayout>

package com.example.yanlei.my;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.Menu;import android.view.MenuItem;import android.widget.RatingBar;import android.widget.Toast;public class MainActivity extends AppCompatActivity {  //声明变量  //声明RatingBar  private RatingBar rbScore=null;  @Override  public void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    //获取RatingBar    rbScore = (RatingBar)findViewById(R.id.ratingbar);    //设置监听事件    rbScore.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener(){      public void onRatingChanged(RatingBar ratingBar, float rating,boolean fromUser) {        Toast.makeText(getApplication(), "rating:"+String.valueOf(rating),Toast.LENGTH_SHORT).show();      }    });  }  @Override  public boolean onCreateOptionsMenu(Menu menu) {    // Inflate the menu; this adds items to the action bar if it is present.    getMenuInflater().inflate(R.menu.menu_main, menu);    return true;  }  @Override  public boolean onOptionsItemSelected(MenuItem item) {    // Handle action bar item clicks here. The action bar will    // automatically handle clicks on the Home/Up button, so long    // as you specify a parent activity in AndroidManifest.    int id = item.getItemId();    //noinspection SimplifiableIfStatement    if (id == R.id.action_settings) {      return true;    }    return super.onOptionsItemSelected(item);  }}

参看:http://blog.csdn.net/jianghuiquan/article/details/8350476