基于Android Volley的网络请求工具。
####一、说明
Android network manager based on Android Volley, JSON, XML, Map, RequestMap(with file) support.
AndroidVolley，Android Volley核心库及扩展工程。
AndroidVolleySample，网络请求工具示例工程。
Release，AndroidVolley jar包。
####二、Volley基本处理流程：
1、应用初始化Volley。
2、Volley创建一个RequestQueue、NetworkDispatcher组及Network。
3、RequestQueue即一个Request队列，RequestQueue会创建一个ExecutorDelivery。
4、NetworkDispatcher实质是Thread，从RequestQueue中取Request，通过Network加以执行。
5、Network负责网络请求处理，具体过程交给HttpStack处理。
6、HttpStack分HttpURLConnection(SDK_INT>=9)与HttpClient与两种方式。
7、ExecutorDelivery负责处理请求结果，并与主线程进行交互。
8、Volley在上述2-7的基础上增加了Cache等附加处理环节。
####三、网络请求工具
在AndroidVolley基础上扩展了com.android.http包，增加了ByteArrayRequest及RequestManager，方便JSON、XML、Map<String, Sting>()、及RequestMap<String, File>()的网络请求。
#####1.初始化RequestManager public class VolleyApplication extends Application { @Override public void onCreate() { super.onCreate(); RequestManager.getInstance().init(this);//初始化工具 }
@Override
public void onTerminate() {
super.onTerminate();
}
}
#####2.使用RequestManager public class MainActivity extends Activity {
private static final String OUT_FILE = "upload.txt";
private static final String OUT_DATA = "sadf464764sdf3ds1f3adsf789213557r12-34912-482130487321gjsaldfalfu2390q3rtheslafkhsdafhreasof";
private static final String POST_URL = "http://allthelucky.ap01.aws.af.cm/memoServer";
private static final String POST_JSON = "{\"action\":\"test\", \"info\":\"hello world\"}";
private static final String GET_URL = "https://raw.githubusercontent.com/panxw/android-volley-manager/master/test.txt";
private static final String UPLOAD_URL = "http://www.splashpadmobile.com/upload.php";
private LoadControler mLoadControler = null;
private ImageView mImageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.mImageView = (ImageView) findViewById(R.id.imageView1);
this.testPost();
this.testGet();
this.testFileUpload();
this.testImageLoader();
}
private void testPost() {
mLoadControler = RequestManager.getInstance().post(POST_URL, POST_JSON, requestListener, 0);
}
private void testGet() {
mLoadControler = RequestManager.getInstance().get(GET_URL, requestListener, 1);
}
private void testFileUpload() {
MainActivity.prepareFile(this);
RequestMap params = new RequestMap();
File uploadFile = new File(this.getFilesDir(), OUT_FILE);
params.put("uploadedfile", uploadFile);
params.put("share", "1");
mLoadControler = RequestManager.getInstance().post(UPLOAD_URL, params, requestListener, 2);
}
private void testImageLoader() {
NetworkApplication.getImageLoader().get("http://www.baidu.com/img/bdlogo.png", new ImageListener() {
@Override
public void onErrorResponse(VolleyError error) {
System.out.println("Image onErrorResponse");
}
@Override
public void onResponse(ImageContainer response, boolean isImmediate) {
System.out.println("Image onResponse");
if (response != null && response.getBitmap() != null) {
mImageView.setImageBitmap(response.getBitmap());
}
}
});
}
private RequestListener requestListener = new RequestListener() {
@Override
public void onSuccess(String response, String url, int actionId) {
System.out.println("actionId:" + actionId + ", OnSucess!\n" + response);
}
@Override
public void onError(String errorMsg, String url, int actionId) {
System.out.println("actionId:" + actionId + ", onError!\n" + errorMsg);
}
@Override
public void onRequest() {
System.out.println("request send...");
}
};
@Override
public void onBackPressed() {
super.onBackPressed();
if (mLoadControler != null) {
mLoadControler.cancel();
}
}
private static void prepareFile(Context context) {
FileOutputStream fos = null;
try {
fos = context.openFileOutput(OUT_FILE, Context.MODE_PRIVATE);
try {
fos.write(OUT_DATA.getBytes());
} catch (IOException e) {
e.printStackTrace();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
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