Android的认证：回调不叫 [英] Android authentication: callback isn't called

问题描述

我在Android 4.2使用验证样本作为一个例子实现一个身份验证系统。在我的应用我有登录选项MenuActivity。如果该选项被单击，并且用户未在已经登录，我的认证系统启动并AuthenticationActivity被显示。

I'm implementing an authentication system in Android 4.2 using the authentication sample as an example. In my application I have a MenuActivity with the Login option. If that option is clicked and the user isn't logged in already, my authentication system starts and the AuthenticationActivity is showed.

在登录结束我想，所以它知道。我创建了一个回调做这样用户已登录到执行中的一些MenuActivity code，但它永远不会被调用。登录工作正常，如果我关闭应用程序并重新启动它检​​测到作为登录的用户。

When the login ends I want to execute some code in the MenuActivity so it knows the user has logged in. I created a callback to do so, but it's never called. The login works fine, if I close the app and start it again it detects the user as logged in.

在我的菜单活动我有这样的：

In my Menu Activity I have this:

public void login() {
    if(mAccount != null)
        Toast.makeText(MenuActivity.this, getString(R.string.account_exists), Toast.LENGTH_LONG).show();
    else{
        mAccountManager.addAccount(ACCOUNT_TYPE, AUTHTOKEN_TYPE, null, null, this, completeCallbackLogin, null);
    }
}

// Callback called when the login ends.
private AccountManagerCallback<Bundle> completeCallbackLogin = new AccountManagerCallback<Bundle>() {
    public void run(AccountManagerFuture<Bundle> arg0) {
        Log.d("MenuActivity", "CALLBACK");
        // When the login ends we save the account in the global variables 
        refreshAccount();

        Toast.makeText(MenuActivity.this, getString(R.string.login_ok), Toast.LENGTH_LONG).show();
    }
};

在我AuthenticatorActivity（称为LoginActivity）我做到以下几点：

In my AuthenticatorActivity (called LoginActivity) I do the following:

Account account = new Account(mUsername, ACCOUNT_TYPE);
try{
    mAccountManager.addAccountExplicitly(account, mPassword, newBundle());
}catch(Exception e){
    e.printStackTrace();
    return;
}

final Intent intent = new Intent();
intent.putExtra(AccountManager.KEY_ACCOUNT_NAME, mUsername);
intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE, ACCOUNT_TYPE);
intent.putExtra(AccountManager.KEY_PASSWORD, mPassword);
intent.putExtra(AccountManager.KEY_AUTHTOKEN, mAuthToken);
intent.putExtra(AccountManager.KEY_BOOLEAN_RESULT, true);
LoginActivity.this.setAccountAuthenticatorResult(intent.getExtras());
setResult(RESULT_OK, intent);               
LoginActivity.this.finish();

就像我说的，我的回调不会被调用。这是为什么？

Like I said, my callback is never called. Why is that?

我只注意到，如果我再次运行应用程序（Eclipse的>运行）回调是正确的我的应用程序关闭，以重新安装之前调用。

I just noticed that if I run the application again (Eclipse->Run) the callback is called right before my application closes to be installed again.

[/编辑]

推荐答案

在我AbstractAccountAuthenticator我忘了添加在addAccount方法以下行：

In my AbstractAccountAuthenticator I forgot to add the following line in the addAccount method:

intent.putExtra(AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE, response);

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