Mike Kwan created CB-3018:
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Summary: Allow Cordova to be
Key: CB-3018
URL: https://issues.apache.org/jira/browse/CB-3018
Project: Apache Cordova
Issue Type: Improvement
Components: Android
Affects Versions: 2.5.0
Reporter: Mike Kwan
Assignee: Joe Bowser
It is difficult to use Cordova when using the Fragment API added in API level
11 (Android 3.0). A cursory search reveals other developers are having similar
problems or have created workarounds:
http://stackoverflow.com/questions/13070205/android-phonegap-and-fragments
https://groups.google.com/forum/?fromgroups=#!topic/phonegap/aVvf1bnDavM
A typical usecase for CordovaWebView within Fragments is if an app wants to
support multiple independent CordovaWebViews within an Activity. With the
deprecation of TabActivity in 3.0 we are seeing an increasing move to the
recommended Fragment architecture. The usage of Fragments in standard Android
apps is significant and I believe it would make sense to allow Cordova to be
more accessible from this paradigm.
The Android implementation of Cordova is heavily biased towards users who want
to use CordovaWebView from within an Activity. In comparison, using
CordovaWebView from within a Fragment can be rather unwieldy.
- Cordova provides DroidGap which extends Activity and conveniently provides:
- A standard implementation of CordovaInterface.
- A standard configuration of the CordovaWebView class (vanilla
CordovaWebViewClient and CordovaChromeClient)
When using a Fragment the developer is forced to reimplement this
boilerplate code (see the workaround provided at
http://www.infil00p.org/advanced-tutorial-using-cordovawebview-on-android/).
The configuration of the CordovaWebView itself is trivial in comparison to the
code that has to be duplicated for CordovaInterface.
- CordovaPlugin provides a reference to a CordovaInterface which in turn
provides access to the containing Activity. As far as I am aware it is not
possible to get access to the associated Fragment without storing a Fragment to
CordovaWebView mapping within the Activity:
http://stackoverflow.com/questions/13070205/android-phonegap-and-fragments
Rather than working around Cordova it would be really great if the library
added support for Fragments. One solution I suggest is:
- Extract the implementation of CordovaInterface out from DroidGap.
CordovaImpl can then be instantiated and reused for Fragments.
- Refactoring CordovaInterface properly to work with Fragments rather than
Activity will require a substantial change - I need to look deeper into the
code before commenting here. This issue presents a major barrier to using
Cordova to its full capacity with Fragments.
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