How do I disable Android @IntDef annotation checks in special cases?

问题

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

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.

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.

回答1:

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

1. Add @SuppressWarnings("ResourceType") before the definition of your class. In my case:

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

2. Add @SuppressWarnings("ResourceType") before the definition of your method. In my case:

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

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

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

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

回答2:

@Status int state1=bundle.getInt(STATE_ELEMENT1);
setStatus1(state1);
//instead of direct setStatus1(bundle.getInt(STATE_ELEMENT1);

来源：https://stackoverflow.com/questions/27474142/how-do-i-disable-android-intdef-annotation-checks-in-special-cases