Adding formatted load and setMethod

ion/src/com/koushikdutta/ion/IonRequestBuilder.java

@@ -114,6 +114,18 @@ public IonRequestBuilder load(String method, String url) {
         return loadInternal(method, url);
     }
 
+    @Override
+    public R setMethod(String method) {
+        methodWasSet = true;
+        this.method = method;
+        return this;
+    }
+
+    @Override
+    public IonRequestBuilder load(String format, String... args) {
+        return load(String.format(format, args));
+    }
+
     @Override
     public IonRequestBuilder load(AsyncHttpRequest request) {
         headers = new Headers(request.getHeaders().getMultiMap());

ion/src/com/koushikdutta/ion/builder/LoadBuilder.java

@@ -15,6 +15,13 @@ public interface LoadBuilder<B> {
      */
     public B load(String uri);
 
+    /**
+     * @param format Format string in C's printf style.
+     * @param args Arguments referenced by the format specifiers in the format string.
+     * @return
+     */
+    public B load(String format, String... args);
+
     /**
      * Load an url using the given an HTTP method such as GET or POST.
      * @param method HTTP method such as GET or POST.

ion/src/com/koushikdutta/ion/builder/RequestBuilder.java

@@ -107,6 +107,13 @@ public interface RequestBuilder<F, R extends RequestBuilder, M extends Multipart
      */
     public R setHandler(Handler handler);
 
+    /**
+     * Set the HTTP method explicitly
+     * @param method HTTP method of the request
+     * @return
+     */
+    public R setMethod(String method);
+
     /**
      * Set a HTTP header
      * @param name Header name

ion/test/src/com/koushikdutta/ion/test/Issues.java

@@ -388,4 +388,15 @@ public void testIssue760() throws Exception {
                 + "} should be equal to {Pixel(35,200,5): " + Integer.toHexString(frame5Pixel) + "}";
         Assert.assertEquals(assertionMessage, frame4Pixel, frame5Pixel);
     }
+
+    public void testIssue365() throw Exception {
+        String noFormatting = Ion.with(getContext()).load("https://raw.githubusercontent.com/koush/AndroidAsync/master/AndroidAsync/test/assets/test.json")
+                .asString().get();
+        String username = "koush";
+        String withFormatting = Ion.with(getContext()).load(
+                "https://raw.githubusercontent.com/%s/AndroidAsync/master/AndroidAsync/test/assets/test.json",
+                username)
+                .asString().get();
+        Assert.asserEquals(noFormatting, withFormatting);
+    }
 }