Android base controls use of Ratingbar star rating bar

1. Introduction

Ratingbar inherits ProgressBar, except for properties that are unique to ProgressBar:

// Event Handling

2. Easy to use

1) drawable Resource layer-list layer of the star bar:

<?XML version= "1.0" encoding= "Utf-8"?><layer-listxmlns:android= "Http://schemas.android.com/apk/res/android">    <ItemAndroid:id= "@android: Id/background"android:drawable= "@drawable/rating_off"/>    <ItemAndroid:id= "@android: id/progress"android:drawable= "@drawable/rating_on"/></layer-list>

2) Add a style to the Styles.xml file under the Values folder:

    <stylename= "Roomratingbar_1"Parent= "@android: Style/widget.ratingbar">        <Itemname= "Android:progressdrawable">@drawable/ratingbar_layer</Item>        <Itemname= "Android:minheight">24dip</Item>        <Itemname= "Android:maxheight">24dip</Item>    </style>

3) XML layout file for the Star bar:

<LinearLayoutxmlns: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:gravity= "Center"android:orientation= "vertical"Android:paddingbottom= "@dimen/activity_vertical_margin"Android:paddingleft= "@dimen/activity_horizontal_margin"Android:paddingright= "@dimen/activity_horizontal_margin"Android:paddingtop= "@dimen/activity_vertical_margin"Tools:context=". Loginactivity ">        <RatingbarAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:id= "@+id/ratingbar"style= "@style/roomratingbar_1"Android:isindicator= "false"Android:numstars= "6"android:rating= "1.5"android:stepsize= "0.25"/></LinearLayout>

4) Java file event handling:

 Public classLoginactivityextendsappcompatactivity {@Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_login); //Set up the login form.Ratingbar Ratingbar=(Ratingbar) Findviewbyid (R.id.ratingbar); Ratingbar.setonratingbarchangelistener (NewRatingbar.onratingbarchangelistener () {@Override Public voidOnratingchanged (Ratingbar Ratingbar,floatVBooleanb) {toast.maketext (loginactivity). This, "rating" +string.valueof (v), Toast.length_short). Show ();    }        }); }}

　　

Android base controls use of Ratingbar star rating bar