systemuid异常中的相同jobid

Question

我正在尝试创建一个使用适配器加载图像的网格视图。

我为此目的使用了Universal Image Loader。当我运行它时，我收到错误"java.lang.IllegalStateException: Same jobid in systemuid."

我无法弄清楚这个错误的原因是什么。我是android开发的新手。提前谢谢！

GridImageAdapter.java

package com.example.android.tabswithswipes.Utils;

import android.content.Context;
import android.graphics.Bitmap;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ProgressBar;

import com.example.android.tabswithswipes.R;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.assist.FailReason;
import com.nostra13.universalimageloader.core.listener.ImageLoadingListener;

import java.util.ArrayList;

/**
 * Created by Chaitanya Shiva on 12-05-2018.
 */

public class GridImageAdapter extends ArrayAdapter<String>{

    private Context mContext;
    private LayoutInflater mInflater;
    private int layoutResource;
    private String mAppend;
    private ArrayList<String> imgURLs;

    public GridImageAdapter(Context context, int layoutResource, String append, ArrayList<String> imgURLs) {
        super(context, layoutResource, imgURLs);
        mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        mContext = context;
        this.layoutResource = layoutResource;
        mAppend = append;
        this.imgURLs = imgURLs;
    }

    private static class ViewHolder{
        ImageView image;
        ProgressBar mProgressBar;
    }

    @NonNull
    @Override
    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {

        /*
        Viewholder build pattern (Similar to recyclerview)
         */
        final ViewHolder holder;
        if(convertView == null){
            convertView = mInflater.inflate(layoutResource, parent, false);
            holder = new ViewHolder();
            holder.mProgressBar = (ProgressBar) convertView.findViewById(R.id.gridImageProgressBar);
            holder.image = (ImageView) convertView.findViewById(R.id.gridImageView);

            convertView.setTag(holder);
        }
        else{
            holder = (ViewHolder) convertView.getTag();
        }

        String imgURL = getItem(position);

        ImageLoader imageLoader = ImageLoader.getInstance();

        imageLoader.displayImage(mAppend + imgURL, holder.image, new ImageLoadingListener() {
            @Override
            public void onLoadingStarted(String imageUri, View view) {
                if(holder.mProgressBar != null){
                    holder.mProgressBar.setVisibility(View.VISIBLE);
                }
            }

            @Override
            public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
                if(holder.mProgressBar != null){
                    holder.mProgressBar.setVisibility(View.GONE);
                }
            }

            @Override
            public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
                if(holder.mProgressBar != null){
                    holder.mProgressBar.setVisibility(View.GONE);
                }
            }

            @Override
            public void onLoadingCancelled(String imageUri, View view) {
                if(holder.mProgressBar != null){
                    holder.mProgressBar.setVisibility(View.GONE);
                }
            }
        });

        return convertView;
    }
}

使用gridView的活动， GalleryActivity.java

package com.example.android.tabswithswipes;

import android.app.ActionBar;
import android.app.Activity;
import android.content.Context;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.Spinner;
import android.widget.TextView;

import com.example.android.tabswithswipes.Utils.GridImageAdapter;
import com.example.android.tabswithswipes.Utils.UniversalImageLoader;
import com.nostra13.universalimageloader.core.ImageLoader;

import java.util.ArrayList;

/**
 * Created by Chaitanya Shiva on 08-05-2018.
 */

public class GalleryFragment extends Activity {

    private GridView gridView;
    private ImageView galleryImage;
    private ProgressBar mProgressBar;
    private Spinner directorySpinner;
    private Context mContext = GalleryFragment.this;
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_gallery);
        galleryImage = (ImageView)findViewById(R.id.galleryImageView);
        gridView = (GridView)findViewById(R.id.gridView);
        directorySpinner = (Spinner)findViewById(R.id.spinnerDirectory);
        mProgressBar = (ProgressBar)findViewById(R.id.progressBar);
        mProgressBar.setVisibility(View.GONE);
        ImageView closeGallery = (ImageView)findViewById(R.id.closeGallery);
        closeGallery.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
        TextView nextScreen = (TextView) findViewById(R.id.tvNext);
        nextScreen.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            }
        });
        tempGridSetup();
    }
    private void setUpImageGrid(ArrayList<String> imgURLs){
        GridView gridView = (GridView)findViewById(R.id.gridView);
        GridImageAdapter adapter = new GridImageAdapter(mContext, R.layout.layout_grid_imageview,"", imgURLs);
        gridView.setAdapter(adapter);
    }

    private void tempGridSetup(){
        ArrayList<String> imgURLs = new ArrayList<>();
        imgURLs.add("https://www.gstatic.com/webp/gallery/4.sm.jpg");
        imgURLs.add("https://www.gstatic.com/webp/gallery3/1.sm.png");
        imgURLs.add("https://cdn.pixabay.com/photo/2018/05/10/09/07/bleeding-heart-3387085_1280.jpg");
        imgURLs.add("https://images.idgesg.net/images/article/2017/08/android_robot_logo_by_ornecolorada_cc0_via_pixabay1904852_wide-100732483-large.jpg");
        imgURLs.add("https://www.androidcentral.com/sites/androidcentral.com/files/styles/xlarge_wm_brw/public/article_images/2018/03/android-p-logo-pixel-2-xl-5.jpg?itok=DB93lUGS");
        imgURLs.add("https://www.androidcentral.com/sites/androidcentral.com/files/styles/xlarge_wm_brw/public/article_images/2018/03/android-p-virtual-notch.jpg?itok=EnKJzDgF");
        imgURLs.add("https://www.androidcentral.com/sites/androidcentral.com/files/styles/xlarge_wm_brw/public/article_images/2018/03/samsung-galaxy-s9-plus-black-4.jpg?itok=bTitZlS_");
        imgURLs.add("https://www.extremetech.com/wp-content/uploads/2017/03/smiling-android.jpg");
        imgURLs.add("https://rimblogs.files.wordpress.com/2016/04/marshmallowman.png?w=800");
        imgURLs.add("https://www.androidcentral.com/sites/androidcentral.com/files/topic_images/2015/android-apps-topic.png");
        imgURLs.add("https://images.idgesg.net/images/article/2017/11/android-security-100741557-large.jpg");

        setUpImageGrid(imgURLs);
    }
}