ishitcno1

import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyLog;

import org.apache.http.HttpEntity;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.FileBody;

cxyxlxdm

给 AppBarLayout 添加 OnOffsetChangedListener

private void setAppBarLayoutState() {
    onOffsetChangedListener = new AppBarLayout.OnOffsetChangedListener() {
        private State state;

        @Override
        public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
            if (verticalOffset == 0) {