Example : string.xml
<resources>
<string name="app_name">Rating1</string>
<string name="hello_world">Hello world!</string>
<string name="menu_settings">Settings</string>
<string name="text_label_1">Rate</string>
<string name="button_label">Submit</string>
<string name="text_label_2">Result: </string>
</resources>
Example : activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/lblRateMe"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/text_label_1"
android:textAppearance="?android:attr/textAppearanceMedium" />
<RatingBar
android:id="@+id/ratingBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="4"
android:stepSize="1.0"
android:rating="2.0" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/button_label" />
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/lblResult"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/text_label_2"
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>
เราสามารถเพิ่มหรือลดจำนวนดาวได้จากโค้ด android:numSters=""
Example : MainActivity.java
package com.rating.rating1;
import android.app.Activity;
import android.os.Bundle;
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 ratingValue;
private Button button;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnRatingBar();
addListenerOnButton();
}
public void addListenerOnRatingBar() {
ratingBar = (RatingBar) findViewById(R.id.ratingBar);
ratingValue = (TextView) findViewById(R.id.txtRatingValue);
ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {
public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
ratingValue.setText(String.valueOf(rating));
}
});
}
public void addListenerOnButton() {
ratingBar = (RatingBar) findViewById(R.id.ratingBar);
button = (Button) findViewById(R.id.button);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this, String.valueOf(ratingBar.getRating()), Toast.LENGTH_LONG).show();
}
});
}
}
ผลลัพธ์ :
ไม่มีความคิดเห็น:
แสดงความคิดเห็น