步步為營_Android開發課[27]_使用者介面之RatingBar(評分欄)

標籤：ratingbar   使用者介面   android   執行個體   開發   

Focus on technology, enjoy life！—— QQ：804212028
瀏覽連結：http://blog.csdn.net/y18334702058/article/details/44624305

• 主題：使用者介面之RatingBar(評分欄)
  -這個很簡單，平時用的也不多，一般用的上就是給電影或者書籍評分；

RatingBar評分欄(執行個體)
activity_main.xml:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical"    android:id="@+id/mainlayout" >     <RatingBar         android:id="@+id/ratingbar1"        style="android:attr/ratingBarStyle"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        /></LinearLayout>

MainActivity.java:

import android.app.Activity;import android.os.Bundle;import android.widget.RatingBar;import android.widget.RatingBar.OnRatingBarChangeListener;import android.widget.Toast;public class MainActivity extends Activity {    RatingBar ratingbar1;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        ratingbar1 = (RatingBar)findViewById(R.id.ratingbar1);        ratingbar1.setOnRatingBarChangeListener(new listener());    }         class listener implements OnRatingBarChangeListener{        @Override        public void onRatingChanged(RatingBar RatingBar , float rating, boolean fromUser) {            // TODO Auto-generated method stub            switch(RatingBar.getId()){            case R.id.ratingbar1:                ratingbar1.setRating(rating);                Toast.makeText(MainActivity.this,"rating:" + String.valueOf(rating),Toast.LENGTH_LONG).show();                break;            }        }    }}

運行結果：

Focus on technology, enjoy life！—— QQ：804212028
瀏覽連結：http://blog.csdn.net/y18334702058/article/details/44624305

步步為營_Android開發課[27]_使用者介面之RatingBar(評分欄)