Removing extras from passed-in Intent

I have it working.

It appears getExtras() creates a copy of the Intent's extras.

If I use the following line, this works fine:

getIntent().removeExtra("search");

Source code of getExtras()

/**
 * Retrieves a map of extended data from the intent.
 *
 * @return the map of all extras previously added with putExtra(),
 * or null if none have been added.
 */
public Bundle getExtras() {
    return (mExtras != null)
            ? new Bundle(mExtras)
            : null;
}

While @Andrew's answer may provide a means for removing a specific Intent extra, sometimes it is necessary to clear ALL of the intent extras and, in this case, you will want to use

Intent.replaceExtras(new Bundle())

Source code of replaceExtras:

/**
 * Completely replace the extras in the Intent with the given Bundle of
 * extras.
 *
 * @param extras The new set of extras in the Intent, or null to erase
 * all extras.
 */
public @NonNull Intent replaceExtras(@NonNull Bundle extras) {
    mExtras = extras != null ? new Bundle(extras) : null;
    return this;
}

The problem can be solved using extra flag which is persistent during destroys and recreations. Here is the narrowed down code:

boolean mProcessed;

@Override
protected void onCreate(Bundle state) {
    super.onCreate(state);
    mProcessed = (null != state) && state.getBoolean("state-processed");
    processIntent(getIntent());
}

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    mProcessed = false;
    processIntent(intent);
}

@Override
protected void onSaveInstanceState(Bundle state) {
    super.onSaveInstanceState(state);
    state.putBoolean("state-processed", mProcessed);
}

protected void processIntent(Intent intent) {
    // do your processing
    mProcessed = true;
}