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Diffstat (limited to 'library/src/main/kotlin/ca/allanwang/kau/utils/Utils.kt')
| -rw-r--r-- | library/src/main/kotlin/ca/allanwang/kau/utils/Utils.kt | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/library/src/main/kotlin/ca/allanwang/kau/utils/Utils.kt b/library/src/main/kotlin/ca/allanwang/kau/utils/Utils.kt deleted file mode 100644 index 84794f9..0000000 --- a/library/src/main/kotlin/ca/allanwang/kau/utils/Utils.kt +++ /dev/null @@ -1,111 +0,0 @@ -package ca.allanwang.kau.utils - -import android.content.Context -import android.content.res.Resources -import android.graphics.Bitmap -import android.graphics.Canvas -import android.graphics.drawable.BitmapDrawable -import android.graphics.drawable.Drawable -import android.os.Handler -import android.os.Looper -import android.support.annotation.IntRange -import ca.allanwang.kau.R -import ca.allanwang.kau.logging.KL -import java.math.RoundingMode -import java.text.DecimalFormat - - -/** - * Created by Allan Wang on 2017-05-28. - */ - -/** - * Markers to isolate respective extension @KauUtils functions to their extended class - * Avoids having a whole bunch of methods for nested calls - */ -@DslMarker -annotation class KauUtils - -@KauUtils val Int.dpToPx: Int - get() = (this * Resources.getSystem().displayMetrics.density).toInt() - -@KauUtils val Int.pxToDp: Int - get() = (this / Resources.getSystem().displayMetrics.density).toInt() - -/** - * Log whether current state is in the main thread - */ -@KauUtils fun checkThread(id: Int) { - val status = if (Looper.myLooper() == Looper.getMainLooper()) "is" else "is not" - KL.d("$id $status in the main thread") -} - -/** - * Converts minute value to string - * Whole hours and days will be converted as such, otherwise it will default to x minutes - */ -@KauUtils fun Context.minuteToText(minutes: Long): String = with(minutes) { - if (this < 0L) string(R.string.kau_none) - else if (this == 60L) string(R.string.kau_one_hour) - else if (this == 1440L) string(R.string.kau_one_day) - else if (this % 1440L == 0L) String.format(string(R.string.kau_x_days), this / 1440L) - else if (this % 60L == 0L) String.format(string(R.string.kau_x_hours), this / 60L) - else String.format(string(R.string.kau_x_minutes), this) -} - -@KauUtils fun Number.round(@IntRange(from = 1L) decimalCount: Int): String { - val expression = StringBuilder().append("#.") - (1..decimalCount).forEach { expression.append("#") } - val formatter = DecimalFormat(expression.toString()) - formatter.roundingMode = RoundingMode.HALF_UP - return formatter.format(this) -} - -/** - * Extracts the bitmap of a drawable, and applies a scale if given - * For solid colors, a 1 x 1 pixel will be generated - */ -@KauUtils fun Drawable.toBitmap(scaling: Float = 1f, config: Bitmap.Config = Bitmap.Config.ARGB_8888): Bitmap { - if (this is BitmapDrawable && bitmap != null) { - if (scaling == 1f) return bitmap - val width = (bitmap.width * scaling).toInt() - val height = (bitmap.height * scaling).toInt() - return Bitmap.createScaledBitmap(bitmap, width, height, false) - } - val bitmap = if (intrinsicWidth <= 0 || intrinsicHeight <= 0) - Bitmap.createBitmap(1, 1, config) - else - Bitmap.createBitmap((intrinsicWidth * scaling).toInt(), (intrinsicHeight * scaling).toInt(), config) - val canvas = Canvas(bitmap) - setBounds(0, 0, canvas.width, canvas.height) - draw(canvas) - return bitmap -} - -/** - * Use block for autocloseables - */ -inline fun <T : AutoCloseable, R> T.use(block: (T) -> R): R { - var closed = false - try { - return block(this) - } catch (e: Exception) { - closed = true - try { - close() - } catch (closeException: Exception) { - e.addSuppressed(closeException) - } - throw e - } finally { - if (!closed) { - close() - } - } -} - -fun postDelayed(delay: Long, action: () -> Unit) { - Handler().postDelayed(action, delay) -} - -class KauException(message: String) : RuntimeException(message)
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