Volley加载网络图片

public class ImageActivity extends Activity {
private ImageView mImage;
private ImageLoader mImageLoader;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_image);
mImage = (ImageView) findViewById(R.id.imageview);
Bitmap bmp = null;
//        try {
//            bmp = MediaStore.Images.Media.getBitmap(this.getContentResolver(), Uri.parse("http://img.mp.itc.cn/upload/20160816/e24c8031a95649778ecaa111b3f5cf76_th.jpg"));
//        } catch (IOException e) {
//            e.printStackTrace();
//        }
//        mImage.setImageBitmap(bmp);
//        mImage.setImageURI(Uri.parse("http://img.mp.itc.cn/upload/20160816/e24c8031a95649778ecaa111b3f5cf76_th.jpg"));
RequestQueue queue = Volley.newRequestQueue(ImageActivity.this);

//        ImageRequest request = new ImageRequest("http://img.mp.itc.cn/upload/20160816/e24c8031a95649778ecaa111b3f5cf76_th.jpg", new Response.Listener<Bitmap>() {
//            @Override
//            public void onResponse(Bitmap response) {
//               mImage.setImageBitmap(response);
//            }
//        },200,200, Bitmap.Config.ARGB_8888, new Response.ErrorListener() {
//            @Override
//            public void onErrorResponse(VolleyError error) {
//
//            }
//        });
//图片的长按事件
mImageLoader = new ImageLoader(queue ,new ImageLoader.ImageCache() {
@Override
public Bitmap getBitmap(String url) {
return null;
}

@Override
public void putBitmap(String url, Bitmap bitmap) {

}
});
ImageLoader.ImageListener listener = ImageLoader.getImageListener(mImage,R.mipmap.ic_launcher,R.mipmap.ic_launcher);
mImageLoader.get("http://img.mp.itc.cn/upload/20160816/e24c8031a95649778ecaa111b3f5cf76_th.jpg",listener);
//        queue.add(request);
mImage.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
Toast.makeText(ImageActivity.this,"微信",Toast.LENGTH_LONG).show();
return false;
}
});
}
}