Add basic (and broken?) methodview example.

examples/methodview/methodview.py

+from flask import Flask, redirect, render_template, request
+
+from flask.ext import admin
+from flask.views import MethodView
+
+
+class ViewWithMethodViews(admin.BaseView):
+    @admin.expose('/')
+    def index(self):
+        return self.render('methodtest.html')
+
+    @admin.expose_plugview('/_api/1')
+    class API_v1(MethodView):
+        def get(self, cls):
+            return cls.render('test.html', request=request, name="API_v1")
+        def post(self, cls):
+            return cls.render('test.html', request=request, name="API_v1")
+
+    @admin.expose_plugview('/_api/2')
+    class API_v2(MethodView):
+        def get(self, cls):
+            return cls.render('test.html', request=request, name="API_v2")
+        def post(self, cls):
+            return cls.render('test.html', request=request, name="API_v2")
+
+# Create flask app
+app = Flask(__name__, template_folder='templates')
+
+
+# Flask views
+@app.route('/')
+def index():
+    return redirect('/admin')
+
+
+if __name__ == '__main__':
+    # Create admin interface
+    admin = admin.Admin()
+    admin.add_view(ViewWithMethodViews())
+    admin.init_app(app)
+
+    # Start app
+    app.debug = True
+    app.run()

examples/methodview/templates/methodtest.html

+{% extends 'admin/master.html' %}
+{% block body %}
+    Hello World from MethodTest!<br/>
+	<form method="POST" action="{{ url_for('.API_v1') }}">
+	  <input type="submit" value="API v1 via POST">
+	  <a href="{{ url_for('.API_v1') }}">v1 via GET</a>
+	</form>
+	<form method="POST" action="{{ url_for('.API_v2') }}">
+	  <input type="submit" value="API v2 via POST">
+	  <a href="{{ url_for('.API_v2') }}">v2 via GET</a>
+	</form>
+{% endblock %}

examples/methodview/templates/test.html

+{% extends 'admin/master.html' %}
+{% block body %}
+  This view {{ name }} was accessed using {{ request.method }} request.
+
+  <br>
+  <a href="/">Return</a>
+{% endblock %}