LocationFragment.java

LocationActivity activity;

onCreateView(){
    mFusedLocationClient.getLastLocation()
        .addOnSuccessListener(activity, new OnSuccessListener<Location>(){
            @Override
            public void onSuccess(Location location) {
                if(location != null){
                    // update UI here ..
                }
            }
         }
    );
}

onAttach(){
    activity = (LocationActivity) context;
}

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这是传递活动到谷歌位置API的正确方法吗？如果是，为什么？请解释这与适当的原因，如内存泄漏等，如果有的话？