在特殊情况下如何禁用 Android @IntDef 注释检查? [英] How do I disable Android @IntDef annotation checks in special cases?

问题描述

这样的一种情况是从 Bundle 中读取一个 int 并将其存储到受@IndDef 注释限制的变量中:

One such case is reading an int from a Bundle and storing it into the variable restricted by @IndDef annotation:

public class MainActivity extends ActionBarActivity {

@IntDef({STATE_IDLE, STATE_PLAYING, STATE_RECORDING})
@Retention(RetentionPolicy.SOURCE)
public @interface State {}

public static final int STATE_IDLE = 0;
public static final int STATE_PLAYING = 1;
public static final int STATE_RECORDING = 2;

@MainActivity.State int fPlayerState = STATE_IDLE;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    if (savedInstanceState != null)
        fPlayerState = savedInstanceState.getInt(BUNDLE_STATE); //Causes "Must be one of: ..." error

必须有某种方法来抑制检查或从 int 转换为 @MainActivity.State int 以便在最后一行中设置变量.

There must be some way of suppressing the check or casting from int to @MainActivity.State int in order to set the variable in the last line.

另一种情况是编写一个否定测试，该测试调用带有带注释参数的函数，故意传递错误的参数，以测试在这种情况下是否抛出异常.为了编译这样的测试，必须有一种方法来抑制注释检查.

The other case is to write a negative test that calls a function with annotated parameter intentionally passing the wrong parameter in order to test that the Exception is thrown in such case. There must be a way to suppress annotation check in order to compile such test.

推荐答案

我找到了抑制注释检查的方法.其实就是三个:

I've found the way to suppress the annotation checks. Actually, there are three of them:

1. 在您的类定义之前添加 @SuppressWarnings("ResourceType").就我而言:

@SuppressWarnings("ResourceType")
public class MainActivity extends ActionBarActivity {
    ...
}

在您的方法定义之前添加 @SuppressWarnings("ResourceType").就我而言:

@Override
@SuppressWarnings("ResourceType")
protected void onCreate(Bundle savedInstanceState) {
    ...
}

这两种方法对我不起作用，因为我想对我的所有代码进行注释检查，只有一个语句除外.

These two approaches do not work for me, because I want annotation checks on all of my code, except for just one statement.

1. 要取消对单行的检查，请添加特殊格式的注释 (!!!).

1. To suppress a check on a single line add a specially formatted comment (!!!).

//noinspection ResourceType
fState = savedInstanceState.getInt(BUNDLE_STATE);

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