使用RatingBar组件实现评分

来源：互联网发布：幕墙结构设计软件编辑：程序博客网时间：2024/06/04 18:25

阶段一：进行主界面的布局（如下图）

具体代码如下：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="#836FFF"    android:orientation="vertical" >    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:padding="@dimen/padding_medium"        android:text="@string/grade"        tools:context=".MainActivity" />    <RatingBar        android:id="@+id/ratingbar_big"        style="?android:attr/ratingBarStyle"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:numStars="5"        android:rating="0.5"        android:stepSize="0.5" />    <TextView        android:id="@+id/result"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:padding="@dimen/padding_medium"        android:layout_marginRight="10dp"/>    <LinearLayout         android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal">        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:padding="@dimen/padding_medium"            android:text="@string/recommend"/>        <RatingBar            android:id="@+id/ratingbar_small"            style="?android:attr/ratingBarStyleSmall"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_marginLeft="5dp"            android:layout_gravity="center_vertical"            android:numStars="5"            android:rating="2.5" />    </LinearLayout>    </LinearLayout>

阶段二：在MainActivity中查找组件并进行相应的处理，具体代码如下：

package com.lks.ratingbar;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.widget.RatingBar;import android.widget.TextView;import android.widget.RatingBar.OnRatingBarChangeListener;public class MainActivity extends Activity {private RatingBar ratingBar_big;private RatingBar ratingBar_small;private TextView result;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        ratingBar_big=(RatingBar) findViewById(R.id.ratingbar_big);        ratingBar_small=(RatingBar) findViewById(R.id.ratingbar_small);        result=(TextView) findViewById(R.id.result);        ratingBar_big.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {@Overridepublic void onRatingChanged(RatingBar ratingBar, float rating,boolean fromUser) {result.setText("评分结果为："+rating);}});    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    }

结果显示：