Find out if Android device is portrait or landscape for normal usage?

You can do this by:

For Lanscape

if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
    // Do some stuff
}

For Portrait

if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
    // Do some stuff
}

Check: Configuration.orientation

It's simple, Just a If-Else block:

if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
    // landscape
} else {
    // portrait
}

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