Fast Android Networking优于它库的几个方面：
OkHttpClient－比如超时等。
OkHttpClient和Okio，所以速度很快
RxJava
支持把JSON解析成java对象（同时支持Jackson解析）。
可以得到任何请求的详细数据分析。你可以知道发送了多少字节，接收了多少字节，以及请求所花的时间。这些数据是很重要的，这样你就可以识别出慢的请求。
你可以得到当前的带宽和网络质量以写出更合理的代码－网络质量高的时候下载高质量的图片，不好的时候下载低质量的图片。
Proper Response Caching— which leads toreduced bandwidth usage.
很好的响应请求－可以减少带宽的使用。
一个executor可以被传递给任何请求让响应在另一个线程中被获取。如果你在响应中做了很重的任务，你不可以在主线程中做。
一个库就能处理所有类型的网络问题－下载，上传，multipart。
可以通过设置prefetch（预取）让请求在需要的时候立即返回缓存。
任何类型的自定义都是可以的
立即请求真的是立即发生的。
很好的取消请求。
如果一个请求完成了指定的百分比，可以阻止其取消。
一个简单的接口就可以做任何类型的请求。
Fast Android Networking Library?
最近Android Marshmallow(Android M)上对HttpClient的移除让其它的网络库都过时了。
没有哪个单一的库做完了所有的事情，比如发送请求，下载任意类型的文件，上传文件，在ImageView中加载网络图片，等等。有一些库可以但是都过时了。
OkHttp,所以支持HTTP/2。
没有哪个库为网络中所有类型的事情提供了简单的接口，比如设置优先级，取消请求等。
Fast Android Networking：
build.gradle
- compile 'com.amitshekhar.android:android-networking:0.2.0'
如果和RxJava一起使用
- compile 'com.amitshekhar.android:rx-android-networking:0.1.0'
如果和Jackson Parser一起使用
- compile 'com.amitshekhar.android:jackson-android-networking:0.2.0'
别忘了加网络权限
- <uses-permission android:name="android.permission.INTERNET" />
然后在application类的onCreate()方法中做初始化：
- AndroidNetworking.initialize(getApplicationContext());
发起GET请求
- AndroidNetworking.get("http://api.localhost.com/{pageNumber}/test")
- .addPathParameter("pageNumber", "0")
- .addQueryParameter("limit", "3")
- .addHeaders("token", "1234")
- .setTag("test")
- .setPriority(Priority.LOW)
- .build()
- .getAsJSONArray(new JSONArrayRequestListener() {
- @Override
- public void onResponse(JSONArray response) {
- // do anything with response
- }
- @Override
- public void onError(ANError error) {
- // handle error
- }
- });
发起POST请求
- AndroidNetworking.post("http://api.localhost.com/createAnUser")
- .addBodyParameter("firstname", "Amit")
- .addBodyParameter("lastname", "Shekhar")
- .setTag("test")
- .setPriority(Priority.MEDIUM)
- .build()
- .getAsJSONArray(new JSONArrayRequestListener() {
- @Override
- public void onResponse(JSONArray response) {
- // do anything with response
- }
- @Override
- public void onError(ANError error) {
- // handle error
- }
- });
从服务器下载一个文件
AndroidNetworking.download(url,dirPath,fileName)
.setTag("downloadTest")
.setPriority(Priority.MEDIUM)
.build()
.setDownloadProgressListener(new DownloadProgressListener() {
@Override
public void onProgress(long bytesDownloaded, long totalBytes) {
// do anything with progress
}
})
.startDownload(new DownloadListener() {
@Override
public void onDownloadComplete() {
// do anything after completion
}
@Override
public void onError(ANError error) {
// handle error
}
});上传一个文件
AndroidNetworking.upload(url)
.addMultipartFile("image",file)
.setTag("uploadTest")
.setPriority(Priority.IMMEDIATE)
.build()
.setUploadProgressListener(new UploadProgressListener() {
@Override
public void onProgress(long bytesUploaded, long totalBytes) {
// do anything with progress
}
})
.getAsJSONObject(new JSONObjectRequestListener() {
@Override
public void onResponse(JSONObject response) {
// do anything with response
}
@Override
public void onError(ANError error) {
// handle error
}
});得到一个响应并在另一个线程executor中完成
(注 : 错误和进度总是在主线程中返回)
AndroidNetworking.upload(url)
.addMultipartFile("image",file)
.setTag("uploadTest")
.setPriority(Priority.IMMEDIATE)
.build()
.setExecutor(Executors.newSingleThreadExecutor()) // setting an executor to get response or completion on that executor thread
.setUploadProgressListener(new UploadProgressListener() {
@Override
public void onProgress(long bytesUploaded, long totalBytes) {
// do anything with progress
}
})
.getAsJSONObject(new JSONObjectRequestListener() {
@Override
public void onResponse(JSONObject response) {
// below code will be executed in the executor provided
// do anything with response
}
@Override
public void onError(ANError error) {
// handle error
}
});
和JAVA对象一起使用 - JSON Parser
/*--------------Example One -> Getting the userList----------------*/
AndroidNetworking.get("http://api.localhost.com/getAllUsers/{pageNumber}")
.addPathParameter("pageNumber", "0")
.addQueryParameter("limit", "3")
.setTag(this)
.setPriority(Priority.LOW)
.build()
.getAsParsed(new TypeToken<List<User>>() {}, new ParsedRequestListener<List<User>>() {
@Override
public void onResponse(List<User> users) {
// do anything with response
Log.d(TAG, "userList size : " + users.size());
for (User user : users) {
Log.d(TAG, "id : " + user.id);
Log.d(TAG, "firstname : " + user.firstname);
Log.d(TAG, "lastname : " + user.lastname);
}
}
@Override
public void onError(ANError anError) {
// handle error
}
});
/*--------------Example Two -> Getting an user----------------*/
AndroidNetworking.get("http://api.localhost.com/getAnUser/{userId}")
.addPathParameter("userId", "1")
.setTag(this)
.setPriority(Priority.LOW)
.build()
.getAsParsed(new TypeToken<User>() {}, new ParsedRequestListener<User>() {
@Override
public void onResponse(User user) {
// do anything with response
Log.d(TAG, "id : " + user.id);
Log.d(TAG, "firstname : " + user.firstname);
Log.d(TAG, "lastname : " + user.lastname);
}
@Override
public void onError(ANError anError) {
// handle error
}
});
/*-- Note : TypeToken and getAsParsed is important here --*/
用ConnectionClass Listener得到当前网络质量和带宽
// Adding Listener
AndroidNetworking.setConnectionQualityChangeListener(new ConnectionQualityChangeListener() {
@Override
public void onChange(ConnectionQuality currentConnectionQuality, int currentBandwidth) {
// do something on change in connectionQuality
}
});
// Removing Listener
AndroidNetworking.removeConnectionQualityChangeListener();
// Getting current ConnectionQuality
ConnectionQuality connectionQuality = AndroidNetworking.getCurrentConnectionQuality();
if(connectionQuality == ConnectionQuality.EXCELLENT){
// do something
}else if (connectionQuality == ConnectionQuality.POOR){
// do something
}else if (connectionQuality == ConnectionQuality.UNKNOWN){
// do something
}
// Getting current bandwidth
int currentBandwidth = AndroidNetworking.getCurrentBandwidth(); // Note : if (currentBandwidth == 0) : means UNKNOWN
取消一个请求
任何一个指定了tag的请求都可以被取消。
AndroidNetworking.cancel("tag");
把从网络加载的图片放到ImageView
<com.androidnetworking.widget.ANImageView
android:id="@+id/imageView"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_gravity="center" />
imageView.setDefaultImageResId(R.drawable.default);
imageView.setErrorImageResId(R.drawable.error);
imageView.setImageUrl(imageUrl);
从url获取指定了一些参数的Bitmap
AndroidNetworking.get(imageUrl)
.setTag("imageRequestTag")
.setPriority(Priority.MEDIUM)
.setBitmapMaxHeight(100)
.setBitmapMaxWidth(100)
.setBitmapConfig(Bitmap.Config.ARGB_8888)
.build()
.getAsBitmap(new BitmapRequestListener() {
@Override
public void onResponse(Bitmap bitmap) {
// do anything with bitmap
}
@Override
public void onError(ANError error) {
// handle error
}
});
Prefetch a request (so that it can return from cache when required at instant)
AndroidNetworking.get(ApiEndPoint.BASE_URL + ApiEndPoint.GET_JSON_ARRAY)
.addPathParameter("pageNumber", "0")
.addQueryParameter("limit", "30")
.setTag(this)
.setPriority(Priority.LOW)
.build()
.prefetch();
为某个请求自定义OkHttpClient
OkHttpClient okHttpClient = new OkHttpClient().newBuilder()
.addInterceptor(new GzipRequestInterceptor())
.build();
AndroidNetworking.get("http://api.localhost.com/{pageNumber}/test")
.addPathParameter("pageNumber", "0")
.addQueryParameter("limit", "3")
.addHeaders("token", "1234")
.setTag("test")
.setPriority(Priority.LOW)
.setOkHttpClient(okHttpClient) // passing a custom okHttpClient
.build()
.getAsJSONArray(new JSONArrayRequestListener() {
@Override
public void onResponse(JSONArray response) {
// do anything with response
}
@Override
public void onError(ANError error) {
// handle error
}
});
Getting Analytics of a request by setting AnalyticsListener on that
AndroidNetworking.download(url,dirPath,fileName)
.setTag("downloadTest")
.setPriority(Priority.MEDIUM)
.build()
.setAnalyticsListener(new AnalyticsListener() {
@Override
public void onReceived(long timeTakenInMillis, long bytesSent, long bytesReceived, boolean isFromCache) {
Log.d(TAG, " timeTakenInMillis : " + timeTakenInMillis);
Log.d(TAG, " bytesSent : " + bytesSent);
Log.d(TAG, " bytesReceived : " + bytesReceived);
Log.d(TAG, " isFromCache : " + isFromCache);
}
})
.setDownloadProgressListener(new DownloadProgressListener() {
@Override
public void onProgress(long bytesDownloaded, long totalBytes) {
// do anything with progress
}
})
.startDownload(new DownloadListener() {
@Override
public void onDownloadComplete() {
// do anything after completion
}
@Override
public void onError(ANError error) {
// handle error
}
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