在onCreate()方法中获取view的width和height

public class LOLActivity extends AppCompatActivity {    @BindView(R.id.f)    private FlexboxLayout flexboxLayout;    private Context context;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_lol);        context = this;        Injector.init(this);        flexboxLayout.post(new Runnable() {            @Override            public void run() {                Log.i("TAG", "width: "+ DrawUtils.px2dp(context,flexboxLayout.getWidth()));            }        });    }}