NewPipe/app/src/main/java/org/schabi/newpipe/util/DeviceUtils.java

package org.schabi.newpipe.util;

import android.app.UiModeManager;
import android.content.Context;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.os.BatteryManager;
import android.os.Build;
import android.util.TypedValue;
import android.view.KeyEvent;

import androidx.annotation.Dimension;
import androidx.annotation.NonNull;
import androidx.core.content.ContextCompat;

import org.schabi.newpipe.App;

public final class DeviceUtils {

    private static final String AMAZON_FEATURE_FIRE_TV = "amazon.hardware.fire_tv";
    private static Boolean isTV = null;

    private DeviceUtils() {
    }

    public static boolean isTv(final Context context) {
        if (isTV != null) {
            return isTV;
        }

        final PackageManager pm = App.getApp().getPackageManager();

        // from doc: https://developer.android.com/training/tv/start/hardware.html#runtime-check
        boolean isTv = ContextCompat.getSystemService(context, UiModeManager.class)
                .getCurrentModeType() == Configuration.UI_MODE_TYPE_TELEVISION
                || pm.hasSystemFeature(AMAZON_FEATURE_FIRE_TV)
                || pm.hasSystemFeature(PackageManager.FEATURE_TELEVISION);

        // from https://stackoverflow.com/a/58932366
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            final boolean isBatteryAbsent = context.getSystemService(BatteryManager.class)
                    .getIntProperty(BatteryManager.BATTERY_PROPERTY_CAPACITY) == 0;
            isTv = isTv || (isBatteryAbsent
                    && !pm.hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN)
                    && pm.hasSystemFeature(PackageManager.FEATURE_USB_HOST)
                    && pm.hasSystemFeature(PackageManager.FEATURE_ETHERNET));
        }

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            isTv = isTv || pm.hasSystemFeature(PackageManager.FEATURE_LEANBACK);
        }

        DeviceUtils.isTV = isTv;
        return DeviceUtils.isTV;
    }

    public static boolean isTablet(@NonNull final Context context) {
        return (context
                .getResources()
                .getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK)
                >= Configuration.SCREENLAYOUT_SIZE_LARGE;
    }

    public static boolean isConfirmKey(final int keyCode) {
        switch (keyCode) {
            case KeyEvent.KEYCODE_DPAD_CENTER:
            case KeyEvent.KEYCODE_ENTER:
            case KeyEvent.KEYCODE_SPACE:
            case KeyEvent.KEYCODE_NUMPAD_ENTER:
                return true;
            default:
                return false;
        }
    }

    public static int dpToPx(@Dimension(unit = Dimension.DP) final int dp,
                             @NonNull final Context context) {
        return (int) TypedValue.applyDimension(
                TypedValue.COMPLEX_UNIT_DIP,
                dp,
                context.getResources().getDisplayMetrics());
    }

    public static int spToPx(@Dimension(unit = Dimension.SP) final int sp,
                             @NonNull final Context context) {
        return (int) TypedValue.applyDimension(
                TypedValue.COMPLEX_UNIT_SP,
                sp,
                context.getResources().getDisplayMetrics());
    }
}