GoogleTVとAndroidタブレットで調査を行っています。メインアクティビティからGoogleTVにコントロールメッセージを送信できるAndroidアプリケーションを作成できました。これを実行しようとしているのは、メインアクティビティから新しいアクティビティを起動し、新しいアクティビティでAnymoteClientServiceサービスを引き続き使用することです。私のメインアクティビティでは、KeyEventメッセージをGoogle TVに送信するために使用するanymoteSenderハンドルを取得しますが、これを新しいアクティビティ（SlidepuzzleActivity）に転送するにはどうすればよいですか？すべてを再度インスタンス化することはできますが、それはペアリングプロセス全体を再度実行する必要があることを意味します。
以下のコードから、SlidepuzzleActivityクラスにanymoteSenderがあることがわかります。これはエラーをスローしますが、その変数を再利用する必要がある場所を示しています。
コード：MainActivity.java：
package uk.co.myapp.gtvremote;
//imports removed for paste
public class MainActivity extends Activity implements ClientListener{
private AnymoteSender anymoteSender;
private TextView statusText;
protected AnymoteClientService mAnymoteClientService;
private static String statusPrefix = "Status: ";
private Context mContext;
private ProgressBar progressBar;
private Handler handler;
private TouchHandler touchPadHandler;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
progressBar = (ProgressBar) findViewById(R.id.a_progressbar);
progressBar.setVisibility(View.VISIBLE);
mContext = this;
ImageButton upArrowButton = (ImageButton) findViewById(R.id.upArrow);
ImageButton leftArrowButton = (ImageButton) findViewById(R.id.leftArrow);
ImageButton centreButton = (ImageButton) findViewById(R.id.centreButton);
ImageButton rightArrowButton = (ImageButton) findViewById(R.id.rightArrow);
ImageButton downArrowButton = (ImageButton) findViewById(R.id.downArrow);
ImageButton backButton = (ImageButton) findViewById(R.id.backButton);
ImageButton homeButton = (ImageButton) findViewById(R.id.homeButton);
Button testButton = (Button) findViewById(R.id.testButton);
upArrowButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
sendKeyEvent(KeyEvent.KEYCODE_DPAD_UP);
}
});
leftArrowButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
sendKeyEvent(KeyEvent.KEYCODE_DPAD_LEFT);
}
});
centreButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
sendKeyEvent(KeyEvent.KEYCODE_DPAD_CENTER);
}
});
rightArrowButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
sendKeyEvent(KeyEvent.KEYCODE_DPAD_RIGHT);
}
});
downArrowButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
sendKeyEvent(KeyEvent.KEYCODE_DPAD_DOWN);
}
});
backButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
sendKeyEvent(KeyEvent.KEYCODE_BACK);
}
});
homeButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
sendKeyEvent(KeyEvent.KEYCODE_HOME);
}
});
testButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent myIntent = new Intent(MainActivity.this, SlidepuzzleActivity.class);
MainActivity.this.startActivity(myIntent);
}
});
handler = new Handler();
// Bind to the AnymoteClientService
Intent intent = new Intent(mContext, AnymoteClientService.class);
bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
statusText = (TextView) findViewById(R.id.statusText);
}
/** Defines callbacks for service binding, passed to bindService() */
private ServiceConnection mConnection = new ServiceConnection() {
/*
* ServiceConnection listener methods.
*/
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
mAnymoteClientService = ((AnymoteClientService.AnymoteClientServiceBinder) service)
.getService();
mAnymoteClientService.attachClientListener(MainActivity.this);
}
@Override
public void onServiceDisconnected(ComponentName name) {
mAnymoteClientService.detachClientListener(MainActivity.this);
mAnymoteClientService = null;
}
};
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onConnected(AnymoteSender anymoteSender) {
if (anymoteSender != null) {
// Send events to Google TV using anymoteSender.
// save handle to the anymoteSender instance.
this.anymoteSender = anymoteSender;
attachTouchListnertoTouchPad();
} else {
statusText.setText(statusPrefix + "Connection attempt failed, cant find send handler");
//attempt to connect again?
//attemptToConnect();
}
// Hide the progressBar once connection to Google TV is established. Make the text display appropriately
handler.post(new Runnable() {
public void run() {
progressBar.setVisibility(View.INVISIBLE);
statusText.setText(statusPrefix + "Connected to GoogleTV");
}
});
}
@Override
public void onDisconnected() {
// show message to tell the user about disconnection.
statusText.setText(statusPrefix + "Disconnected");
// Try to connect again if needed. This may be need to be done via button
attemptToConnect();
this.anymoteSender = null;
}
@Override
public void onConnectionError() {
// show message to tell the user about disconnection.
statusText.setText(statusPrefix + "Connection error encountered");
// Try to connect again if needed.
attemptToConnect();
this.anymoteSender = null;
}
@Override
protected void onDestroy() {
if (mAnymoteClientService != null) {
mAnymoteClientService.detachClientListener(this);
}
unbindService(mConnection);
super.onDestroy();
}
private void attachTouchListnertoTouchPad()
{
// Attach touch handler to the touchpad view
touchPadHandler = new TouchHandler(
findViewById(R.id.touchPad), Mode.POINTER_MULTITOUCH, anymoteSender);
}
public void attemptToConnect()
{
//stub to invoke connection attempt
}
private void sendKeyEvent(final int keyEvent) {
// create new Thread to avoid network operations on UI Thread
if (anymoteSender == null) {
Toast.makeText(MainActivity.this, "Waiting for connection",
Toast.LENGTH_LONG).show();
return;
}
anymoteSender.sendKeyPress(keyEvent);
}
}
SlidepuzzleActivity.java：
package uk.co.myapp.gtvremote;
//imports removed for paste
public class SlidepuzzleActivity extends Activity implements ClientListener{
private AnymoteClientService mAnymoteClientService;
private Context mContext;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.slidepuzzle);
mContext = this;
ImageButton piece1x1 = (ImageButton) findViewById(R.id.piece1x1);
ImageButton piece1x2 = (ImageButton) findViewById(R.id.piece1x2);
ImageButton piece1x3 = (ImageButton) findViewById(R.id.piece1x3);
ImageButton piece2x1 = (ImageButton) findViewById(R.id.piece2x1);
ImageButton piece2x2 = (ImageButton) findViewById(R.id.piece2x2);
ImageButton piece2x3 = (ImageButton) findViewById(R.id.piece2x3);
ImageButton piece3x1 = (ImageButton) findViewById(R.id.piece3x1);
ImageButton piece3x2 = (ImageButton) findViewById(R.id.piece3x2);
ImageButton piece3x3 = (ImageButton) findViewById(R.id.piece3x3);
Intent intent = new Intent(mContext, AnymoteClientService.class);
bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
piece1x1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
}
});
}
private ServiceConnection mConnection = new ServiceConnection() {
/*
* ServiceConnection listener methods.
*/
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
mAnymoteClientService = ((AnymoteClientService.AnymoteClientServiceBinder) service)
.getService();
mAnymoteClientService.attachClientListener(SlidepuzzleActivity.this);
}
@Override
public void onServiceDisconnected(ComponentName name) {
mAnymoteClientService.detachClientListener(SlidepuzzleActivity.this);
mAnymoteClientService = null;
}
};
private void sendKeyEvent(final int keyEvent) {
// create new Thread to avoid network operations on UI Thread
if (anymoteSender == null) {
Toast.makeText(SlidepuzzleActivity.this, "Waiting for connection",
Toast.LENGTH_LONG).show();
return;
}
anymoteSender.sendKeyPress(keyEvent);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.slidepuzzle, menu);
return true;
}
@Override
public void onConnected(AnymoteSender anymoteSender) {
// TODO Auto-generated method stub
}
@Override
public void onDisconnected() {
// TODO Auto-generated method stub
}
@Override
public void onConnectionError() {
// TODO Auto-generated method stub
}
@Override
protected void onDestroy() {
if (mAnymoteClientService != null) {
mAnymoteClientService.detachClientListener(this);
}
unbindService(mConnection);
super.onDestroy();
}
}