之前在这个程序反复修改，测试volley都没问题，最后这个缺白屏，什么提示也没有。程序没问题吧，我在idea上运行都正常的。怎么回事呢？

程序是这样子的：

package com.example.volleyimagedemo;
import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v4.util.LruCache;
import com.android.volley.RequestQueue;
import com.android.volley.toolbox.ImageLoader;
import com.android.volley.toolbox.NetworkImageView;
import com.android.volley.toolbox.Volley;

public class MainActivity extends Activity {

        private RequestQueue mQueue;
        private NetworkImageView image;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.activity_main);
                initView();
                getImage("http://e.hiphotos.baidu.com/image/pic/item/b58f8c5494eef01fd6508e15e6fe9925bd317d9e.jpg");
        }
        private void initView() {

                mQueue = Volley.newRequestQueue(getApplicationContext());
                image= (NetworkImageView) findViewById(R.id.image);
        }
        private void getImage(String url) {

                ImageLoader loader = new ImageLoader(mQueue, new BitmapCache());
                image.setDefaultImageResId(R.mipmap.ic_launcher);
                image.setErrorImageResId(R.mipmap.ic_launcher);
                image.setImageUrl(url, loader);

        }
        public class BitmapCache implements ImageLoader.ImageCache{
                private LruCache mcCache;

                public BitmapCache() {
                        int maxSize = (int) Runtime.getRuntime().maxMemory();
                        int mySize = maxSize / 4;
                        mcCache = new LruCache(mySize) {
                                @Override
                                protected int sizeOf(String key, Bitmap value) {
                                        return value.getByteCount();
                                }
                        };
                }
                @Override
                public Bitmap getBitmap(String s) {

                        return mcCache.get(s);
                }
                @Override
                public void putBitmap(String s, Bitmap bitmap) {
                        mcCache.put(s, bitmap);
                }
        }
}

xml

网络已开：

我尝试clean project一下，却提示：