Android开发之自定义评分组件

在drawable-hdpi下边新建一个start_conf_file.xml文件

<?xml version="1.0" encoding="utf-8"?>

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <item

        android:id="@+android:id/background"  表示设置的背景 

        android:drawable="@drawable/star_empty"/>

    <item

        android:id="@+android:id/progress"  表示点击评分的时候的图片

        android:drawable="@drawable/star_full"/>

    

</layer-list>

values下边新建progress.xml

<?xml version="1.0" encoding="utf-8"?>

<resources xmlns:android="http://schemas.android.com/apk/res/android">

  <style 

     name="myRatingBar"

     parent="@android:style/Widget.RatingBar">

     <item name="android:progressDrawable">

         @drawable/start_conf_fil

     </item>

     <item name="android:minWidth">53dip</item>

     <item name="android:maxHeight">53dip</item>

  </style>  

</resources>

.xml

<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:orientation="vertical"

    tools:context=".MainActivity" >

    <RatingBar 

        android:id="@+id/ratingone"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:numStars="5"

        android:isIndicator="false"

        style="@style/myRatingBar"/>

    

    <TextView

        android:id="@+id/mytxt"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"/>

</LinearLayout>

.java

package com.example.myratingprojectdemo;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.widget.RatingBar;

import android.widget.RatingBar.OnRatingBarChangeListener;

import android.widget.TextView;

public class MainActivity extends Activity {

private RatingBar ratingBar=null;

private TextView mytxt=null;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

this.ratingBar=(RatingBar) super.findViewById(R.id.ratingone);

this.mytxt=(TextView) super.findViewById(R.id.mytxt);

//设置评分组件的事件

this.ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListenerImp());

}

public class OnRatingBarChangeListenerImp implements OnRatingBarChangeListener{

public void onRatingChanged(RatingBar ratingBar, float rating,

boolean fromUser) {

MainActivity.this.mytxt.append(

"当前值:"+ratingBar.getRating()+

"步长:"+ratingBar.getStepSize()+"\n"

);

}

}

}