1 /** 2      * 异步加载图片 3      */ 4     private void loadImageByVolley(){   5         String imageUrl="http://www.taopic.com/uploads/allimg/120421/107063-12042114025737.jpg";   6         RequestQueue requestQueue = Volley.newRequestQueue(this); 7          8         final LruCache<String, Bitmap> lruCache = new LruCache<String, Bitmap>(20);   9         ImageCache imageCache = new ImageCache() { 10             11             @Override  12             public void putBitmap(String key, Bitmap value) {  13                 lruCache.put(key, value);  14             }  15   16             @Override  17             public Bitmap getBitmap(String key) {  18                 return lruCache.get(key);  19             }  20         };  21         ImageLoader imageLoader = new ImageLoader(requestQueue, imageCache); 22         23         //三个参数分别是imageView组件，默认图片，加载失败图片24         ImageListener listener = ImageLoader.getImageListener(iv, R.drawable.ic_launcher,0);  25         imageLoader.get(imageUrl, listener);  26     } 

 1 /** 2      * 使用NetworkImageView显示网络图片,代替传统的ImageView 3      */ 4     private void showImageByNetworkImageView(){   5         String imageUrl="http://avatar.csdn.net/6/6/D/1_lfdfhl.jpg";   6         RequestQueue requestQueue = Volley.newRequestQueue(this);   7         final LruCache<String, Bitmap> lruCache = new LruCache<String, Bitmap>(20);   8         ImageCache imageCache = new ImageCache() {   9             @Override  10             public void putBitmap(String key, Bitmap value) {  11                 lruCache.put(key, value);  12             }  13   14             @Override  15             public Bitmap getBitmap(String key) {  16                 return lruCache.get(key);  17             }  18         };  19         ImageLoader imageLoader = new ImageLoader(requestQueue, imageCache);   20         mNetworkImageView.setImageUrl(imageUrl,imageLoader);  21     }  

 1 public class Weather { 2  3     @SerializedName("code") 4     private String code; 5  6     @SerializedName("list") 7     private WeatherList list; 8      9     @SerializedName("day")10     private String[] day;11     12 13     public WeatherList getList() {14         return list;15     }16 17     public void setList(WeatherList list) {18         this.list = list;19     }20 21     public String getCode() {22         return code;23     }24 25     public void setCode(String code) {26         this.code = code;27     }28 29     public String[] getDay() {30         return day;31     }32 33     public void setDay(String[] day) {34         this.day = day;35     }36     37     38     39 }

 1 public class Test extends Activity { 2     private String url = "http://api.izhuzhou.com.cn/GetMoreWeather.ashx"; 3     private TextView tv; 4  5     @Override 6     protected void onCreate(Bundle savedInstanceState) { 7         super.onCreate(savedInstanceState); 8         setContentView(R.layout.test); 9         10         tv = (TextView) findViewById(R.id.text);11 12         RequestQueue mQueue = Volley.newRequestQueue(this);13         mQueue.add(new JsonObjectRequest(Method.GET, url, null, new Listener<JSONObject>() {14             public void onResponse(JSONObject response) {15                  Gson gson = new Gson();16                  Weather weather = gson.fromJson(response.toString(), Weather.class);17                  weather.getCode();18                  weather.getList().getUpdateTime();19                               20                  tv.setText(weather.getDay()[0]);21 22             }23 24         }, null));25         mQueue.start();26 27     }28 29 }