Launching an Android Application from the Browser

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You cannot use MAIN — URLs in Android are only VIEWed from the browser or WebView.

Also, none of your Intent filters include the BROWSABLE category, so they will never work with the browser.

It is not recommended to invent your own schemes. You can use a regular HTTP scheme, for some domain that you control. This sample project demonstrates this. In particular, you can follow the pattern shown by this filter:

<intent-filter>
    <action android:name="android.intent.action.VIEW" />
    <category android:name="android.intent.category.DEFAULT" />
    <category android:name="android.intent.category.BROWSABLE" />
    <data android:host="www.this-so-does-not-exist.com" android:scheme="http" />
</intent-filter>

replacing www.this-so-does-not-exist.com with something you own, and perhaps adding in a path to narrow the filter’s scope. You can also see this technique used by the Barcode Scanner app from ZXing.

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