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Time for action — detecting the user location and showing nearby issues

We begin adding location support in our app and quickly showing nearby issues by querying the Twitter timeline.

We modify our project by incorporating a Navigation Controller in our main UI flow. This is done in the Interface Builder, by dragging a UINaviationController object from the Object Library. This helps us control the application navigation flow easily.
Connect a segue from the Navigation Controller to the home screen UIViewController, by control dragging your mouse pointer from the Navigation Controller to the home screen View, and selecting Relationship rootViewController from the pop-up menu.
On the home View UI (First View Controller), name the view controller as Home, and the identifier as home. We will need these View identifier names later on to call each View on demand.

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10. Social Governance — TweetGovern > Time for action — detecting the user loca...