Kindle Fire tablets don't account for the width of the soft key bar when in landscape and the app is in fullscreen mode. Strangely enough when using android:windowTranslucentNavigation in your theme it also seems to use the fullscreen behaviour. Using the official documentation from Amazon I created a small snippet that pads out a view by the ri…

AmazonKindlePaddingGuesser.java

public class AmazonKindlePaddingGuesser() {
    /**
     * Certain devices (I'm looking at you, Amazon) don't displace the root of the view
     * hierarchy by the width of the status bar.
     * See https://developer.amazon.com/public/solutions/devices/fire-tablets/specifications/03-ux-specifications and
     * https://developer.amazon.com/appsandservices/solutions/devices/kindle-fire/specifications/01-device-and-feature-specifications for
     * more info
     * @param layout A layout that should get the right padding applied
     * @return the width of the right padding in px
     */
    public static int getPadding(final View layout, final Context ctx) {
        final int orientation = ctx.getResources().getConfiguration().orientation;
        final boolean isLandscape = orientation == Configuration.ORIENTATION_LANDSCAPE;
        if (Build.MANUFACTURER.equals("Amazon") && isLandscape) {
            final int paddingRight;
            switch (Build.MODEL) {
                case "KFASWI":
                case "KFSOWI":
                case "KFTT":
                    // Fire HD7 (2014)
                    // Fire HD7 (2013)
                    // Fire HD7 (2012)
                    // All have 78px
                    paddingRight = 78;
                    break;
                case "KFTHWA":
                case "KFTHWI":
                    // Fire HDX 7 (2013)
                    paddingRight = 117;
                    break;

                case "KFAPWA":
                case "KFAPWI":
                    // Fire HDX 8.9 (2013)
                    paddingRight = 122;
                    break;
                case "KFJWA ":
                case "KFJWI":
                    // Fire HD 8.9 (2012)
                    paddingRight = 90;
                    break;
                case "KFOT":
                    // Fire (2012)
                    paddingRight = 60;
                    break;
                default:
                    final float scale = ctx.getResources().getDisplayMetrics().density;

                    // For other tablets we will rely on the OS SDK level. Fire OS 5 is Lollipop
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                        // Fire OS 5 has a bar width of 48dp
                        paddingRight = 0;
                    } else {
                        // Just assume that other versions of Fire OS use the same width for now :(
                        paddingRight = (int) (scale * 48);
                    }
                    break;
            }

            if (layout != null) {
                final int currentPaddingLeft = layout.getPaddingLeft();
                final int currentPaddingTop = layout.getPaddingTop();
                final int currentPaddingBottom = layout.getPaddingBottom();
                layout.setPadding(currentPaddingLeft, currentPaddingTop, paddingRight, currentPaddingBottom);
            }
            return paddingRight;
        }

        return 0;
    }
}

Superseded by https://gist.github.com/unverbraucht/5b5304f38ff3fa66279d