抛出：IllegalArgumentException的AccountManager：关键是空 [英] AccountManager IllegalArgumentException: key is null

问题描述

好吧，我发现了一个抛出：IllegalArgumentException 在一个点，它不应该。

Ok, I'm getting an IllegalArgumentException at a point where it shouldn't.

我有一个自定义扩展帐户正在使用的AccountManager保存：

I have a custom extension of Account that is saved using the AccountManager:

// Method inside a custom extension of Account
public boolean save(AccountManager manager) {
    removeAll(manager);
    boolean result = manager.addAccountExplicitly(this, null, toBundle());
    manager.setUserData(this, KEY_1, value1);
    manager.setUserData(this, KEY_2, value2);
    manager.setUserData(this, KEY_3, value3);
    return result;
}

键是常量字符串值，但仍应用抛出：

The keys are constant String values but app still throws:

java.lang.IllegalArgumentException: key is null

我不得不说，我以这种方式，因为只使用连接用户的数据：

I have to say that I'm only attaching the user data in this fashion because using:

 manager.addAccountExplicitly(this, null, toBundle());

似乎没有附加价值。执行密钥需要一个特殊的名字模式？

didn't seem to attach the values. Do the keys require a special name pattern?

任何人都收到了这个问题？

Anybody had this problem before?

更新：

这里面被抛出的 manager.setUserData（）它看起来像这样（的Andr​​oid code）：

It gets thrown inside the manager.setUserData() which looks like this (Android code):

public void setUserData(final Account account, final String key, final String value) {
    if (account == null) throw new IllegalArgumentException("account is null");
    if (key == null) throw new IllegalArgumentException("key is null");
    try {
        mService.setUserData(account, key, value);
    } catch (RemoteException e) {
        // won't ever happen
        throw new RuntimeException(e);
    }
}

当我走到这个方法，用eclipse我得到这个在调试透视图：

When I "walk" into this method with eclipse I get this in the debug perspective:

该值不为空> O＆LT;

The values aren't null >o<

推荐答案

好吧，经过进一步研究的 安卓的的AccountManager 我没有找到一种方法，使其工作就像我是想，但我找到了解决办法。

Ok, after further research into 's AccountManager I did not find a way to make it work like I was trying but I found a solution.

而不是节约的细节为用户的数据包的我将它们保存为的authToken 使用密钥作为 authTokenType 是这样的：

Instead of saving the details as an user data bundle I save them as authToken values using the key as the authTokenType like this:

public boolean save(AccountManager manager) {
    removeAll(manager);
    boolean result = manager.addAccountExplicitly(this, null, toBundle());
    manager.setAuthToken(this, KEY_1, value1);
    manager.setAuthToken(this, KEY_2, value2);
    manager.setAuthToken(this, KEY_3, value3);
    return result;
}

，然后检索这样的值：

And then retrieving the values like this:

value1 = manager.peekAuthToken(account, KEY_1);

我仍然不知道这是存储为帐户数据的方式，但它是唯一一个我已经成功地使工作至今。

I'm still not sure if this is the way to store data for an Account but it's the only one I've managed to make work so far.

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