AAID.java

HmsInstanceId inst  = HmsInstanceId.getInstance(this);
Task<AAIDResult> idResult =  inst.getAAID();
idResult.addOnSuccessListener(new OnSuccessListener<AAIDResult>() {
    @Override
    public void onSuccess(AAIDResult aaidResult) {
        String aaid = aaidResult.getId();
        textView.setText(aaid);
        Log.d(TAG, "getAAID success:" + aaid );

    }
}).addOnFailureListener(new OnFailureListener() {
    @Override
    public void onFailure(Exception e) {
        Log.d(TAG, "getAAID failure:" + e);
    }
});