Sencha Touch 2 + PhoneGap are not working on Android 4

[trondina]

I am having the same problem with Developing for Android 4.0. Loader is not finding the dependency files and throwing an unknown chromium error. While I agree that there may be a work around for this ... it is not viable for us because we are in our final development stages and need to troubleshoot problems on the actual device itself. These workarounds do not address this. As far as using the SDK builder, our development machines are Windows based machines, thus the Sencha builder is currently of no use to us.

It is hard to believe that ST2 has made it this far and is about to hit a frozen API Release candidate version with such a significant bug in it. I understand that ice cream sandwich is only about 1% of the market right now, but with its anticipated full release and upgrade to hit all eligible devices in April, you would think that this bug would be a higher priority and would have been resolved by now.

Even if it turns out to be a phonegap issue, I think it would be smart for the ST team to find a packaging resolution that works well with phonegap.

[paulc]

Given we're at RC2 now, what is the likelihood this is resolved as part of ST2?

[mitchellsimoens]

It has been pushed to be after 2.0.0 GA

[shanesmith]

As far as I can tell it's all because of this Android 3+ bug: http://code.google.com/p/android/issues/detail?id=17535

In short, ajax fails on file:// requests when the url includes parameters.

After taking a closer look at Ext.Ajax I found that it includes by default a "cache busting" parameter, therefore the quick solution is to disable it at the top of my app.js with: Ext.Loader.setConfig({ disableCaching: false; }) and Ext.Ajax.setDisableCaching(false); This will at least solve the dynamic loading and most normal ajax calls.

Next, ajax proxies also insert url params, so I've had to include the following configs when defining them: { noCache: false, enablePagingParams: false }

Lastly, I noticed that the TreeStore that I was using injects a parameter into the ajax proxy, so I've had to create my own proxy that extends Ext.data.proxy.Ajax and removes params in doRequest().

This won't fix the bug, it's only a workaround, but it seems to be working fine for me at the moment.

Hope this helps. =)

[karazy]

As far as I can tell it's all because of this Android 3+ bug: http://code.google.com/p/android/issues/detail?id=17535

In short, ajax fails on file:// requests when the url includes parameters.

After taking a closer look at Ext.Ajax I found that it includes by default a "cache busting" parameter, therefore the quick solution is to disable it at the top of my app.js with: Ext.Loader.setConfig({ disableCaching: false; }) and Ext.Ajax.setDisableCaching(false); This will at least solve the dynamic loading and most normal ajax calls.

Next, ajax proxies also insert url params, so I've had to include the following configs when defining them: { noCache: false, enablePagingParams: false }

Lastly, I noticed that the TreeStore that I was using injects a parameter into the ajax proxy, so I've had to create my own proxy that extends Ext.data.proxy.Ajax and removes params in doRequest().

This won't fix the bug, it's only a workaround, but it seems to be working fine for me at the moment.

Hope this helps. =)

This works for me. Big thanks. What an annoying bug. Google should put a bit more care in testing

[luiscortes]

I too was running into a similar problem with phonegap and sencha touch and android 2.3 and 3.1, so I created a simple hello world app without phonegap and tried it -- it failed on 3.1, but not with the error I expected. I had beforehand received a "Viewport.js not found error", but this time I got an "Ext" not found error on 3.x only.

Here is my sample "helloworld" app that works on 2.x and not on 3.x.

HelloWorld.zip

Since I am a newbie, the one factor that I am not sure of is the following: My current java project is really based on android 2.3.3, and I deployed it to my 3.1 target machine. Maybe I really do need to make a new java project with 3.x so that I can deploy to the 3.1 target machine -- although I was under the impression that sencha tools do not require this step. Correct me if I am wrong, please.


Opps, somehow I missed the previous post which explains that this is an android issue. Sorry for the rant. I will try the suggested fix.

[luiscortes]

The reason that I was getting a can't find "Ext" error was that the tablet was not connected to the internet -- I know, newbie mistake . In any case, I added these fixes to my index.html file and my program worked on android 3.1.

  <script>
        // Fix for problem  with android 3.x and 4.x which is
        // the browser has a problem with urls with ? and this
        // bug has not been fixed by google.  See:
        // http://code.google.com/p/android/issues/detail?id=17535 or
        // http://www.sencha.com/forum/showthread.php?162322-Sencha-Touch-2-PhoneGap-are-not-working-on-Android-4/page3&highlight=Loader
        //
        
        Ext.Loader.setConfig({ disableCaching: false });
        Ext.Ajax.setDisableCaching(false);    
    </script>

[Marc-QNX]

The reason that I was getting a can't find "Ext" error was that the tablet was not connected to the internet -- I know, newbie mistake . In any case, I added these fixes to my index.html file and my program worked on android 3.1.

  <script>
        // Fix for problem  with android 3.x and 4.x which is
        // the browser has a problem with urls with ? and this
        // bug has not been fixed by google.  See:
        // http://code.google.com/p/android/issues/detail?id=17535 or
        // http://www.sencha.com/forum/showthread.php?162322-Sencha-Touch-2-PhoneGap-are-not-working-on-Android-4/page3&highlight=Loader
        //
        
        Ext.Loader.setConfig({ disableCaching: false });
        Ext.Ajax.setDisableCaching(false);    
    </script>

I can confirm that this fixes the problem for me too, on Android 4.0.3 / Nexus S.

[olouvignes]

Any chance to get this fix included into the core?

[abshnasko]

Yes please! I spent way too long trying to solve this issue.

Even after applying the above fix, I'm still seeing arguments being adding to requests to store files: ?_dc=1336009801123

Is this ok?