DevQuiz 2011 Androidの解答（Activity＆layout xml）

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<Button android:id="@+id/disp"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="disp" />
<TextView  
    android:id="@+id/code"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text=""
    />
</LinearLayout>

MainActivity.java

package devquiz11.aidl;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

import com.google.android.apps.gddquiz.IQuizService;

public class MainActivity extends Activity {

	Button btn = null;
	TextView code = null;
	IQuizService remoteService;
	
	private ServiceConnection conn = new ServiceConnection() {

		@Override
		public void onServiceConnected(ComponentName name, IBinder service) {
			remoteService = IQuizService.Stub.asInterface(service);
		}
		
		@Override
		public void onServiceDisconnected(ComponentName name) {
			// クリア
			remoteService = null;
		}
	};
	
	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		
		bindService(new Intent(IQuizService.class.getName()), conn, BIND_AUTO_CREATE);
		code = (TextView)findViewById(R.id.code);
		btn = (Button)findViewById(R.id.disp);
		btn.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				try {
					code.setText(remoteService.getCode());
				} catch (RemoteException e) {
					code.setText("Oops!!");
				}
			}
		});
	}
}