title: How to get the touch point correctly in IOS8
body: <p>In IOS 8, I set the device's default orientation is portrait, but sometimes, I want to change some views and keyboard to landscape, so I call the API setStatusBarOrientation. 
    In IOS 7, everything is ok, but In IOS 8, I can not get the touch points correctly.</p>
  
  <p><img src="https://i.stack.imgur.com/j8AZI.png" alt="enter image description here"></p>
  
  <p>As above picture shows, when I rotate the A view to B, if I touch B's shadow part, I can not get the correct coordination,it always return x = 640.</p>
  
  <p>I get the x value as follow: x = [touch locationInView: [touch view]].x</p>