5.3.9. Determining the Screen Size
In this app, we display the Menu only when the app is running on a phone-sized device or when it’s running on a tablet in portrait orientation (Section 5.5.4). To determine this, we’ll use Android’s WindowManager (package android.view) to obtain a Display object that contains the display’s current width and height. This changes with the device’s orientation—in portrait orientation, the device’s width is less than its height.
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