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May 16, 2017

Sencha ExtJs Modern: How to Switch Off Compression in ‘Build & Emulate’

by Joe Kuan

Although in Sencha Cmd, we can easily switch off compression by doing a Testing build. In ExtJs Modern framework, when we do a ‘Build & Emulate’, it compresses all the JS code anyway and there is no option to switch it off (Well, at least in Sencha Architect). This makes it hard to debug mobile applications when runs it on an Android emulator, especially using Chrome developer console to remote attach to the emulator.

I contacted the support, here is how you switch the compression off by adding highlighted lines to app.json as shown belown:

     "native": {
         "packager": "cordova",
         "compressor": null,
         "properties": {
            "build.compression": "",
            "enable.resource.compression": false
         },
         "cordova": {
            "config": {
               "id": "com.domain.MyApp",
               "name": "MyApp",
               "platforms": "android"
            }
         }
      }

After that, do a ‘Build & Emulate’ again. When you reconnect the Chrome developer console, you should see your own source code as well as ExtJs source.

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