Camera and Alloy - Get black screen

I'm trying to develop and Alloy app (Android ). I want to use the camera so i create a camera controller (camera.js, camera.xml and camera.tss) Titanium SDK: 3.3.0 Platform: Android 4.3 Device: Motorola G

in camera.xml

<Alloy>
    <Window class="container" navBarHidden="true" fullscreen="false" navBarHidden="true" translucent="true">
 
    </Window>
</Alloy>

in camera.js

var overlay = Ti.UI.createView({
    width:'100%',
    height:'100%',
    left:"0"
});
var nav = Ti.UI.createView({
    top:0,
    width:Ti.UI.FILL,
    height: "50dp",
    backgroundColor: "black",
    layout: "horizontal"
});
 
var back = Ti.UI.createView({
    left:"5dp",
    top: "25dp",
    width:"22px",
    height:"36px",
    backgroundImage: "/volver.png",
    touchEnabled:true,
    zIndex:"999",
    left: "10dp"
});
 
var logo = Ti.UI.createView({
    backgroundImage: "/logonavWhite.png",
    height: "49px",
    width: "123px",
    top: "15dp",
    left:"45%"
});
 
var captureBtn = Ti.UI.createView({
    bottom:0,
    backgroundImage:"/captureBtn.png",
    width:"160px",
    height:"160px",
    left:"40%"
});
nav.add(back);
nav.add(logo);
overlay.add(nav);
overlay.add(captureBtn);
 
captureBtn.addEventListener('click',function(){
    App.Navigator.open('newofferDetail');
});
 
 
Ti.Media.showCamera({
    overlay:overlay,
    saveToPhotoGallery:true,
    allowEditing:false,
    mediaTypes : [Ti.Media.MEDIA_TYPE_PHOTO],
    showControls : false,
    autohide : false,
    success:function(event){
        var image = event.media;
        var date = new Date().getTime();
        var f = Titanium.Filesystem.getFile(Titanium.Filesystem.applicationDataDirectory, "savedOffer"+date+".jpg");
        f.write(image);
        App.Navigator.open('uploadOffer',{image:f.nativePath});
    }
});

When i try to open the camera (from other window using a button) i get the postWindowCreated() message in the console (DEBUG), but i can only see a black and empty screen.

I'm add a theme

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="Theme.Offers" parent="Theme.AppCompat.Light">
        <item type="bool" name="android:windowActionBar">false</item> 
        <item type="bool" name="android:windowNoTitle">true</item>
        <!--<item name="android:windowFullscreen">true</item>-->
    </style>
</resources>

And set the theme for camera activity in tiapp.xml

<activity android:name="ti.modules.titanium.media.TiCameraActivity"
                    android:configChanges="keyboardHidden|orientation"
                    android:theme="@style/Theme.Offers"
                />

Any idea why?

I want to show the camera with an overlay (top navbar and button) like this image