Ratingbar rating bar for Android Control

Ratingbar is the score bar in adnroid. Very effective

 

Source code download

I. Overview

Ratingbar is an extension of seekbar and progressbar, Which is rated by stars. When you use the default ratingbar, you can touch/drag or use a key to set the ratingbar. There are two types of ratingbar (large and small). The larger one is only suitable for indication, not suitable for user interaction.

Ii. Instances

1. layout File

<? XML version = "1.0" encoding = "UTF-8"?>
<Linearlayout xmlns: Android = "http://schemas.android.com/apk/res/android"
Android: Orientation = "vertical"
Android: paddingleft = "10dip"
Android: layout_width = "match_parent"
Android: layout_height = "match_parent">

<Ratingbar Android: Id = "@ + ID/ratingbar1"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: numstars = "3"
Android: rating = "2.5" type = "codeph" text = "/codeph"/>

<Ratingbar Android: Id = "@ + ID/ratingbar2"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: numstars = "5"
Android: rating = "2.25" type = "codeph" text = "/codeph"/>

<Linearlayout
Android: layout_width = "match_parent"
Android: layout_height = "wrap_content"
Android: layout_margintop = "10dip">

<Textview Android: Id = "@ + ID/rating"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"/>

<Ratingbar Android: Id = "@ + ID/small_ratingbar"
Style = "? Android: ATTR/ratingbarstylesmall"
Android: layout_marginleft = "5dip"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: layout_gravity = "center_vertical"/>

</Linearlayout>

<Ratingbar Android: Id = "@ + ID/indicator_ratingbar"
Style = "? Android: ATTR/ratingbarstyleindicator"
Android: layout_marginleft = "5dip"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: layout_gravity = "center_vertical"/>

</Linearlayout>

2. Java code

Package wjq. widgetdemo;

Import Android. App. activity;
Import Android. OS. Bundle;
Import Android. widget. ratingbar;
Import Android. widget. textview;
Import Android. widget. ratingbar. onratingbarchangelistener;

Public class ratingbardemo extends activity implements
Onratingbarchangelistener {
Private ratingbar msmallratingbar;
Private ratingbar mindicatorratingbar;
Private textview mratingtext;

/*
* (Non-javadoc)
*
* @ See Android. App. Activity # oncreate (Android. OS. Bundle)
*/
@ Override
Protected void oncreate (bundle savedinstancestate ){
// Todo auto-generated method stub
Super. oncreate (savedinstancestate );
Setcontentview (R. layout. ratingbarpage );

Mratingtext = (textview) findviewbyid (R. Id. rating );

// We copy the most recently changed rating on to these indicator-only
// Rating bars
Mindicatorratingbar = (ratingbar) findviewbyid (R. Id. indicator_ratingbar );
Msmallratingbar = (ratingbar) findviewbyid (R. Id. small_ratingbar );

// The different rating bars in the layout. Assign the listener to us.
(Ratingbar) findviewbyid (R. Id. ratingbar1). setonratingbarchangelistener (this );
(Ratingbar) findviewbyid (R. Id. ratingbar2). setonratingbarchangelistener (this );
}

@ Override
Public void onratingchanged (ratingbar, float rating,
Boolean fromuser ){
Final int numstars = ratingbar. getnumstars ();
Mratingtext. settext (
"Popularity" + rating + "/" + numstars );

// Since this rating bar is updated to reflect any of the other rating
// Bars, we shoshould update it to the current values.
If (mindicatorratingbar. getnumstars ()! = Numstars ){
Mindicatorratingbar. setnumstars (numstars );
Msmallratingbar. setnumstars (numstars );
}
If (mindicatorratingbar. getrating ()! = Rating ){
Mindicatorratingbar. setrating (rating );
Msmallratingbar. setrating (rating );
}
Final float ratingbarstepsize = ratingbar. getstepsize ();
If (mindicatorratingbar. getstepsize ()! = Ratingbarstepsize ){
Mindicatorratingbar. setstepsize (ratingbarstepsize );
Msmallratingbar. setstepsize (ratingbarstepsize );
}

}

}