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我試着去實現谷歌玩遊戲服務登錄/退出鍵作爲其建議在這裏：https://developers.google.com/games/services/training/signin谷歌玩遊戲服務登錄/退出鍵
但每當
findViewById(R.id.sign_in_button).setVisibility(View.GONE);
或
findViewById(R.id.sign_out_button).setVisibility(View.VISIBLE);
被調用 - 我的應用程序崩潰。
問題是 - 我不太明白如何在我的主佈局上正確添加這些按鈕，然後使用它們。
所以，我沒有得到它...我沒有正確地添加這些登錄/退出按鈕，或者是有什麼問題與我的佈局？你如何將這些按鈕添加到主佈局？我沒有在互聯網上找到任何提供這些按鈕的完整實現的源代碼，只是代碼片斷。
可能是它與視圖有關嗎？我沒有得到它 - 如果我實現View.OnClickListener，那麼這些按鈕如何知道他們分配給什麼視圖...正如我爲廣告創建了另一個視圖，但它是一個特殊的視圖。我只是失去了:(
這裏是我的主要佈局：
<?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" >
<!-- sign-in button -->
<com.google.android.gms.common.SignInButton
android:id="@+id/sign_in_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!-- sign-out button -->
<Button
android:id="@+id/sign_out_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Sign Out"
android:visibility="gone" />
</LinearLayout>
而這就是我在我的主要活動做：
public class AndroidLauncher extends AndroidApplication implements AdInterface, GameHelperListener, ActionResolver, View.OnClickListener {
int launched = 0;
Intent intent;
private final String AD_UNIT_ID = "------";
private final int SHOW_ADS = 1;
private final int HIDE_ADS = 0;
protected AdView adView;
private GameHelper gameHelper;
ConnectivityManager cm;
NetworkInfo ni;
protected Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch(msg.what) {
case SHOW_ADS:
adView.setVisibility(View.VISIBLE);
//AdRequest adRequest = new AdRequest.Builder().build();
//adView.loadAd(adRequest);
break;
case HIDE_ADS:
adView.setVisibility(View.GONE);
break;
}
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (launched == 0){
setContentView(R.layout.main);
findViewById(R.id.sign_in_button).setOnClickListener(this);
findViewById(R.id.sign_out_button).setOnClickListener(this);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
intent = new Intent(this, VideoActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
AndroidApplicationConfiguration cfg = new AndroidApplicationConfiguration();
initialize(new Game(this, this), cfg);
if (gameHelper == null) {
gameHelper = new GameHelper(this, GameHelper.CLIENT_GAMES);
gameHelper.enableDebugLog(true);
}
gameHelper.setup(this);
adView = new AdView(this);
adView.setAdSize(AdSize.BANNER);
adView.setAdUnitId(AD_UNIT_ID);
adView.setId(12345); // this is an arbitrary id, allows for relative positioning in createGameView()
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,
FrameLayout.LayoutParams.WRAP_CONTENT,
Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM);
adView.setLayoutParams(params);
adView.setBackgroundColor(Color.BLACK);
addContentView(adView, params);
startAdvertising(adView);
launched = 1;
}
//*@Override
//*public void onStart(){
//* super.onStart();
//* gameHelper.onStart(this);
//*}
@Override
public void onStop(){
super.onStop();
gameHelper.onStop();
}
@Override
public void onActivityResult(int request, int response, Intent data) {
super.onActivityResult(request, response, data);
gameHelper.onActivityResult(request, response, data);
}
private void startAdvertising(AdView adView) {
AdRequest adRequest = new AdRequest.Builder().build();
adView.loadAd(adRequest);
}
@Override
public void showAds(boolean show) {
// TODO Auto-generated method stub
handler.sendEmptyMessage(show ? SHOW_ADS : HIDE_ADS);
}
@Override
public boolean getSignedInGPGS() {
// TODO Auto-generated method stub
//return false;
return gameHelper.isSignedIn();
}
@Override
public void loginGPGS() {
// TODO Auto-generated method stub
try {
runOnUiThread(new Runnable(){
public void run() {
gameHelper.beginUserInitiatedSignIn();
}
});
} catch (final Exception ex) {
}
}
@Override
public void submitScoreGPGS(int score) {
// TODO Auto-generated method stub
}
@Override
public void unlockAchievementGPGS(String achievementId) {
// TODO Auto-generated method stub
Games.Achievements.unlock(gameHelper.getApiClient(), achievementId);
//Games.Achievements.
}
//@Override
public void revealAchievementGPGS(String achievementId) {
// TODO Auto-generated method stub
Games.Achievements.reveal(gameHelper.getApiClient(), achievementId);
//Games.Achievements.
}
@Override
public void getLeaderboardGPGS() {
// TODO Auto-generated method stub
}
@Override
public void getAchievementsGPGS() {
// TODO Auto-generated method stub
if (gameHelper.isSignedIn()) {
startActivityForResult(Games.Achievements.getAchievementsIntent(gameHelper.getApiClient()), 101);
}
else if (!gameHelper.isConnecting()) {
loginGPGS();
}
}
@Override
public void onSignInFailed() {
// TODO Auto-generated method stub
// Sign in has failed. So show the user the sign-in button.
findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
findViewById(R.id.sign_out_button).setVisibility(View.GONE);
}
@Override
public void onSignInSucceeded() {
// TODO Auto-generated method stub
//loginGPGS();
// show sign-out button, hide the sign-in button
findViewById(R.id.sign_in_button).setVisibility(View.GONE);
findViewById(R.id.sign_out_button).setVisibility(View.VISIBLE);
// (your code here: update UI, enable functionality that depends on sign in, etc)
}
public boolean isNetworkConnected() {
cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
ni = cm.getActiveNetworkInfo();
if (ni == null) {
// There are no active networks.
return false;
} else
return true;
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (v.getId() == R.id.sign_in_button) {
// start the asynchronous sign in flow
gameHelper.beginUserInitiatedSignIn();
}
else if (v.getId() == R.id.sign_out_button) {
// sign out.
gameHelper.signOut();
// show sign-in button, hide the sign-out button
findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
findViewById(R.id.sign_out_button).setVisibility(View.GONE);
}
}
}
此外，這些按鈕根本不顯示。我只是不小心，如何正確地將它們添加在佈局上，並在主要活動中使用它們：:( – Redbu11 2014-09-19 13:56:12