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How to get Activity's content view?

What method should I call to know if an Activity has its contentView (once the method setContentView() has been called)? ...
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You need to use a Theme.AppCompat theme (or descendant) with this activity

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How do you create a transparent demo screen for an Android app?

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Start an Activity with a parameter

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Choose File Dialog [closed]

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Remove ActiveRecord in Rails 3

...ongoDB and MongoMapper for all of its models and therefore has no need for ActiveRecord. In the previous version, I am unloading activerecord in the following way: ...
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Android on-screen keyboard auto popping up

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Bootstrap 3 jquery event for active tab change

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How to detect user inactivity in Android

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Activity has leaked ServiceConnection @438030a8 that was original

I'm working on my first Android app. I've got three activities in my app, and the user switches back and forth pretty frequently. I've also got a remote service, which handles a telnet connection. The apps need to bind to this service in order to send/receive telnet messages. ...