libliboom

fun Context.createNotificationSettingsIntent() =
    when {
        Build.VERSION.SDK_INT >= Build.VERSION_CODES.O -> {
            Intent(Settings.ACTION_APP_NOTIFICATION_SETTINGS).apply {
                putExtra(Settings.EXTRA_APP_PACKAGE, packageName)
            }
        }
        Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP -> {
            Intent().apply {
                action = "android.settings.APP_NOTIFICATION_SETTINGS"

libliboom

inline class Dp(val dp: Int) {
    fun toPx() = TypedValue.applyDimension(
        TypedValue.COMPLEX_UNIT_DIP, dp.toFloat(), Resources.getSystem().displayMetrics
    ).toInt()
}

inline val Int.dp
    get() = Dp(this).toPx()

libliboom

import junit.framework.TestCase.assertEquals
import kotlinx.coroutines.*
import kotlinx.coroutines.test.TestCoroutineDispatcher
import org.junit.Rule
import org.junit.Test

/**
 * Check the official example for ScopeBuilder with the following url.
 * https://kotlinlang.org/docs/reference/coroutines/basics.html#scope-builder
 * **/

libliboom

    // before
    setOuterBounds(x, y, width, height);
    setInnerBounds(x + 2, y + 2, width - 4, height - 4);

    // after
    setOuterBounds(bounds);
    setInnerBounds(bounds.expand(-2));

libliboom

  // 반환 결과값이 단순한 경우
  int size() {
      int result = 1;
      for (Node each : getChildren())
          result += each.size();
      return result;
  }

  // 파라미터를 전달해서 결과를 수집하는 직관적인 경우
  asList() {

libliboom

// 가변 상태를 키로하고 값을 데이터로 하는 맵의 예제
class FlexibleObject {
    /*package*/ Map<String, Object> properties = new HashMap<String, Object>();

    /*package*/ Object getProperty(String key) {
        return properties.get(key);
    }

    /*package*/ void setProperty(String key, Objecct value) {
        properties.set(key, value);

libliboom

  // 의존관계가 있는 경우
  Rectangle void setWidth(int width) {
      this.width = width;
      area = width * height;
  }

  // 의존관계가 있으나 명확하지 않은 경우
  Widget void setBorder(int width) {
      this.width = width;
      notifyListener

libliboom

class GraphicEditor {
    ...
    public void mouseDown() {
        tool.mouseDown(this);
    }
    ...
}

class RectangleTool {
    ...

libliboom

class GraphicEditor {
    ...
    public void mouseDown() {
        tool.mouseDown();
    }
    ...
}

class RectangleTool {
    private GraphicEditor editor;

libliboom

class ExchangeRate {
    private int CountryCode;
    
    public void b() {
        Info info = new Info();
        int d = info.day;
        int m = info.month;
        int y = info.year;
    }