add redirect sample (android-async-http#1336)

Author: saeed-rz

sample/src/main/AndroidManifest.xml

@@ -30,6 +30,7 @@
         <activity android:name=".PatchSample" />
         <activity android:name=".OptionsSample" />
         <activity android:name=".JsonSample" />
+        <activity android:name=".RedirectSample" />
         <activity android:name=".JsonStreamerSample" />
         <activity android:name=".FileSample" />
         <activity android:name=".DirectorySample" />

sample/src/main/java/com/loopj/android/http/sample/RedirectSample.java

@@ -0,0 +1,48 @@
+package com.loopj.android.http.sample;
+
+import com.loopj.android.http.AsyncHttpClient;
+import com.loopj.android.http.RequestFactory;
+import com.loopj.android.http.interfaces.ResponseHandlerInterface;
+import com.loopj.android.http.utils.RequestHandle;
+
+import cz.msebera.android.httpclient.Header;
+import cz.msebera.android.httpclient.HttpEntity;
+
+public class RedirectSample extends SampleParentActivity {
+
+    @Override
+    public String getLogTag() {
+        return "RedirectSample";
+    }
+
+    @Override
+    public RequestHandle executeSample(AsyncHttpClient client, String URL, Header[] headers, HttpEntity entity, ResponseHandlerInterface responseHandler) {
+        client.setEnableRedirectStrategy(true);
+        return client.sendRequest(RequestFactory.get(URL, headers), responseHandler);
+    }
+
+    @Override
+    public int getSampleTitle() {
+        return R.string.title_get_sample;
+    }
+
+    @Override
+    public boolean isRequestBodyAllowed() {
+        return false;
+    }
+
+    @Override
+    public boolean isRequestHeadersAllowed() {
+        return true;
+    }
+
+    @Override
+    public String getDefaultURL() {
+        return PROTOCOL+"httpbin.org/status/301";
+    }
+
+    @Override
+    public ResponseHandlerInterface getResponseHandler() {
+        return defaultResponseHandler;
+    }
+}