we add the android:rating="1" attribute to show star in rating bar.
Custom Rating bar using res/drawable we need to create the ratingbar.xml
We use the numStars="5" in our XML for number of star in layout, and set android:layout_width="wrap_content". Then, we can play around with styles and other stuff, but the "wrap_content" in layout_width
Here we will use the style "?android:attr/ratingBarStyleIndicator" in addition to the "?android:attr/ratingBarStyleSmall"
MainActivity[MainActivity.class]
package com.androidfeeders.ratingbarexample;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.RatingBar;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity implements View.OnClickListener, RatingBar.OnRatingBarChangeListener {
private RatingBar ratingStar;
private Button buttonSubmit;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ratingStar = (RatingBar) findViewById(R.id.ratingStar);
buttonSubmit = (Button) findViewById(R.id.buttonSubmit);
buttonSubmit.setOnClickListener(this);
ratingStar.setOnRatingBarChangeListener(this);
}
@Override
public void onClick(View view) {
showToastMessage(String.valueOf(ratingStar.getRating()));
}
@Override
public void onRatingChanged(RatingBar ratingBar, float rating, boolean b) {
showToastMessage(String.valueOf(rating));
}
public void showToastMessage(String message) {
Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show();
}
}
Layout Resource[activity_main.xml]
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/constraintLayout"
android:padding="16dp"
android:background="@android:color/darker_gray"
tools:context=".MainActivity">
<TextView
android:id="@+id/lblRateMe"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/colorAccent"
android:text="Rating"
app:layout_constraintLeft_toLeftOf="@+id/constraintLayout"
app:layout_constraintTop_toTopOf="@+id/constraintLayout"
android:textAppearance="?android:attr/textAppearanceLarge" />
<RatingBar
android:id="@+id/ratingStar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
app:layout_constraintTop_toBottomOf="@+id/lblRateMe"
android:stepSize="0.5"
android:rating="1.0" />
<Button
android:id="@+id/buttonSubmit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="@+id/ratingStar"
android:background="@color/colorAccent"
android:textColor="@android:color/white"
android:text="Submit" />
</android.support.constraint.ConstraintLayout>
Gradle Scripts~build.gradle[Module:app]
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.androidfeeders.ratingbarexample"
minSdkVersion 15
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0-beta01'
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
Gradle Scripts~build.gradle[Project:RatingBarExample]
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.1'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
Resource[strings.xml]
<resources>
<string name="app_name">RatingbarExample</string>
</resources>
manifests
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.androidfeeders.ratingbarexample">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
I started to learn android and Kotlin and iOS and Hybrid application and i cant code IOS very well. But i love more interesting to code and finding new developer minds who are join to me You're welcome to keep on using my website.Instead, you can join our FB page for developer comments and post there: https://www.facebook.com/ramasamy.m.779 Best wishes :) Ramasamy(Software Developer)
See what's new in Android & IOS & Hybrid development … explore and learn in site
Kotlin and React native example too
Ramasamy
5 min agoKotlin and React native example too
ReplyRamasamy
5 min agoKotlin and React native example too
ReplyRamasamy
5 min agoKotlin and React native example too
Reply