kali ini kita akan membuat ratingbar, biasanya digunakan untuk input suatu penilaian
yang perlu diketahui dari properti file xmlnya, lihat pada property Ratingbar
numStars :menentukan jumlah bintang
stepsize: menetukan nilai setiap bintang
Rating :menentukan nilai awal bintang yang tepilih pada saat awal program di eksekusi
ok karena saya malas membuat kodenya kode ini saya ambil dari
http://www.mkyong.com/android/android-rating-bar-example/file xmlnya
[code language="java"]
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:id="@+id/lblRateMe"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Rate Me"
android:textAppearance="?android:attr/textAppearanceMedium" />
<RatingBar
android:id="@+id/ratingBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="4"
android:rating="2.0"
android:stepSize="1.0" />
<Button
android:id="@+id/btnSubmit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Submit" />
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="@+id/lblResult"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Result : "
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtRatingValue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
</LinearLayout>
[/code]
file javanya
[code language="java"]
package com.ratingbar;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.RatingBar;
import android.widget.RatingBar.OnRatingBarChangeListener;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
private RatingBar ratingBar;
private TextView txtRatingValue;
private Button btnSubmit;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnRatingBar();
addListenerOnButton();
}
public void addListenerOnRatingBar() {
ratingBar = (RatingBar) findViewById(R.id.ratingBar);
txtRatingValue = (TextView) findViewById(R.id.txtRatingValue);
//if rating value is changed,
//display the current rating value in the result (textview) automatically
ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {
public void onRatingChanged(RatingBar ratingBar, float rating,
boolean fromUser) {
txtRatingValue.setText(String.valueOf(rating));
}
});
}
public void addListenerOnButton() {
ratingBar = (RatingBar) findViewById(R.id.ratingBar);
btnSubmit = (Button) findViewById(R.id.btnSubmit);
//if click on me, then display the current rating value.
btnSubmit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this,
String.valueOf(ratingBar.getRating()),
Toast.LENGTH_SHORT).show();
}
});
}
}
[/code]
penampakannya
download kodenyasemoga berguna :)
