kakajika

class FullscreenOverlayService extends Service {

    private View overlay;
    private WindowManager windowManager;

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

kakajika

import android.graphics.Color;
import android.support.annotation.ColorInt;
import android.support.annotation.NonNull;
import android.support.annotation.Size;

public class ColorUtil {

    public static @ColorInt int lighten(@ColorInt int color, float value) {
        float[] hsl = colorToHSL(color);
        hsl[2] += value / 100;

kakajika

// PathSimplifier.swift

import UIKit

private let TOLERANCE: CGFloat = 1e-6
private let EPSILON: CGFloat = 1e-12

extension CGPoint {
    func add(p: CGPoint) -> CGPoint {
        return CGPointMake(x+p.x, y+p.y)

kakajika

protocol ScopeFunc {}
extension ScopeFunc {
    @inline(__always) func apply(block: (Self) -> ()) -> Self {
        block(self)
        return self
    }
    @inline(__always) func letIt<R>(block: (Self) -> R) -> R {
        return block(self)
    }
}

kakajika

import android.widget.ListPopupWindow;
import android.widget.PopupWindow;
import android.widget.Spinner;

public static void avoidSpinnerDropdownFocus(Spinner spinner) {
    try {
        Field listPopupField = Spinner.class.getDeclaredField("mPopup");
        listPopupField.setAccessible(true);
        Object listPopup = listPopupField.get(spinner);
        if (listPopup instanceof ListPopupWindow) {

kakajika

class ConcatObjectAdapter(
    private vararg val adapters: ObjectAdapter
) : ObjectAdapter() {
    init {
        adapters.forEach { adapter ->
            adapter.registerObserver(object : DataObserver() {
                override fun onChanged() {
                    super.onChanged()
                    this@ConcatObjectAdapter.notifyChanged()
                }

kakajika

/**
 * @author kakajika
 * @since 2016/04/27
 */
public class MaxLinearLayout extends LinearLayout {

    public MaxLinearLayout(Context context) {
        super(context);
    }

kakajika

import android.os.Build
import android.text.style.LineHeightSpan
import androidx.annotation.Px
import kotlin.math.roundToInt

object LineHeightSpanCompat {
    fun standard(@Px lineHeight: Int): LineHeightSpan =
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            LineHeightSpan.Standard(lineHeight)
        } else {

kakajika

import com.google.firebase.database.*
import rx.Observable
import rx.lang.kotlin.add
import rx.lang.kotlin.observable

/**
 * @author kakajika
 * @since 2016/11/08
 */
class RxFirebaseDatabase {

kakajika

/**
 * px/dp/sp/pt/mm unit converter.
 * This is not incompatible with Jetpack Compose.
 */
inline class Pixel(private val pxF: Float) {
    val toPx: Int @Px get() = pxF.roundToInt()

    fun toDp(res: Resources = Resources.getSystem()): Float = pxF / TypedValue.applyDimension(
        TypedValue.COMPLEX_UNIT_DIP, 1.0f, res.displayMetrics
    )