@IntDef注释和从其他无法注释的代码返回值，或者如何暂时禁用注释以影响代码?

I am using IntDef from Android Support annotation in my code (but my question is wider in scope so please keep reading :) like this:

我在代码中使用来自Android Support annotation的IntDef(但我的问题范围更广，所以请继续阅读:)

public class UiLockMode
{
    @IntDef({DEFAULT, NONE, VISIBLE, TRANSPARENT})
    @Retention(RetentionPolicy.SOURCE)
    public @interface AllowedValues {}

    public static final int DEFAULT     = 0;
    public static final int NONE        = 1;
    public static final int VISIBLE     = 2;
    public static final int TRANSPARENT = 3;
}

Next, I got some other methods annotated with it like this:

接下来，我得到了一些其他的方法注释如下:

protected void setLockMode(@UiLockMode.AllowedValues int lockMode) {
    ...

At that point is all fine and nice but the problem shows up whenever I'd like to pass return value from other methods to setLockMode(), like i.e. from Parcelable implementation:

在这一点上，一切都很好，但是问题出现了，每当我想要将返回值从其他方法传递给setLockMode()时，比如从Parcelable实现:

private Foo(Parcel in) {
    ...
    setLockMode(in.getInt());

In such case my IDE complains that I am only allowed to use DEFAULT, NONE, VISIBLE, TRANSPARENT with setLockMode(). But getInt() is not my method so I cannot annotate its return value and make all this happy. I am also almost sure this is not unique use case but I failed to find the way to either temporarily disable AllowedValues annotation from complaining here or to "cast" return value from getInt() to make AllowedValue not complaining.

在这种情况下，我的IDE会抱怨我只能使用默认的、无的、可见的、透明的setLockMode()。但是getInt()不是我的方法，因此我无法注释它的返回值，并使所有这些都很满意。我也几乎确定这不是唯一的用例，但是我没能找到一种方法，要么暂时禁用这里的AllowedValues注释，要么从getInt()“转换”返回值，使AllowedValue不抱怨。

So my questions are: is there any way of solving this problem? Maybe I am missing something obvious about annotations but maybe I shall be creating bug report to make Google address this problem instead?

我的问题是:有没有办法解决这个问题?也许我遗漏了一些关于注释的明显的东西，但是也许我应该创建bug报告来让谷歌解决这个问题?

Any input or thought appreciated.

任何输入或想法都被欣赏。

2 个解决方案

#1

You can suppress IntDef Lint warnings for a method by annotating it with the following:

您可以通过以下注释来抑制方法的IntDef Lint警告:

@SuppressWarnings("ResourceType")

You can also disable these warnings for individual statements and whole classes - see the Android Tools site for further documentation.

您还可以为单个语句和整个类禁用这些警告——请参阅Android Tools站点以获得进一步的文档。

#2

If you only suppress the warning for this single statement by inserting //noinspection ResourceType above it, isn't this equivalent to "making it understand the value returned by getInt() at this point is correct"?

如果您只是通过在该语句上面插入// /noinspection ResourceType来抑制该语句的警告，这是否等价于“让它理解getInt()此时返回的值是正确的”?

Alternatively, you could add to UiLockMode a simple method translating from int to @UiLockMode, e.g. something along the lines of:

或者，您可以向UiLockMode添加一个从int到@UiLockMode的简单方法，例如:

public @UiLockMode.AllowedValues static int lockModeTranslate(int val)
{
    switch(val)
    {
        case 0: return UiLockMode.DEFAULT;
        case 1: return UiLockMode.NONE;
        case 2: return UiLockMode.TRANSPARENT;
        case 3: return UiLockMode.VISIBLE;
    }

    throw new SomethingHorrible;
}

Then a call like setLockMode(UiLockMode.lockModeTranslate(in.getInt())); will no longer cause a warning.

然后调用setLockMode(UiLockMode.lockModeTranslate);将不再引起警告。

#1