momvart’s gists

momvart / GoogleAuthenticatorUtils.kt

Created August 19, 2020 10:29

A helper class which can generate a URI for google authenticator.

	import android.net.Uri

	object GoogleAuthenticatorUtils {
	enum class KeyType(val uriKey: String) {
	TIME_BASED("totp"),
	COUNTER_BASED("hotp")
	}

	//Based on https://github.com/google/google-authenticator/wiki/Key-Uri-Format

momvart / MarginItemDecoration.kt

Last active August 19, 2020 10:37

An item decoration for recyclerview which adds margin between items.

	import android.content.Context
	import android.graphics.Rect
	import android.util.LayoutDirection
	import android.view.View
	import androidx.annotation.DimenRes
	import androidx.recyclerview.widget.GridLayoutManager
	import androidx.recyclerview.widget.RecyclerView

	class MarginItemDecoration(
	private val marginLeft: Int,

momvart / PlaceholderWithBaseline.kt

Created July 23, 2020 13:56

Add support of baseline to constraintlayout Placeholder. When you want to set baseline constraint on a Placeholder doesn't work because it doesn't support it. With this simple extension you can solve the issue.

	import android.content.Context
	import android.util.AttributeSet
	import androidx.constraintlayout.widget.Placeholder

	// You can replace it with Placeholder when you want to set layout_constraintBaseline_toBaselineOf
	class PlaceholderWithBaseline @JvmOverloads constructor(
	context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
	) : Placeholder(context, attrs, defStyleAttr) {
	override fun getBaseline(): Int =
	content.baseline

momvart / BWT_First_To_Last.py

Last active May 13, 2020 11:25

A generator for mapping of last to first column in BWT matrix. Input is a BW transform of DNA sequence.

	#change this if you want to support other types of sequences
	def get_char_index(c):
	if c == 'A':
	return 1
	elif c == 'C':
	return 2
	elif c == 'G':
	return 3
	elif c == 'T':
	return 4

momvart / BLOSUM62.py

Created April 8, 2020 17:48

Simple BLOSUM62 implementation in python. Used for sequence alignment of proteins. Based on https://en.wikipedia.org/wiki/BLOSUM

	BLOSUM62_MATRIX = [[4, 0, -2, -1, -2, 0, -2, -1, -1, -1, -1, -2, -1, -1, -1, 1, 0, 0, -3, -2],
	[0, 9, -3, -4, -2, -3, -3, -1, -3, -1, -1, -3, -3, -3, -3, -1, -1, -1, -2, -2],
	[-2, -3, 6, 2, -3, -1, -1, -3, -1, -4, -3, 1, -1, 0, -2, 0, -1, -3, -4, -3],
	[-1, -4, 2, 5, -3, -2, 0, -3, 1, -3, -2, 0, -1, 2, 0, 0, -1, -2, -3, -2],
	[-2, -2, -3, -3, 6, -3, -1, 0, -3, 0, 0, -3, -4, -3, -3, -2, -2, -1, 1, 3],
	[0, -3, -1, -2, -3, 6, -2, -4, -2, -4, -3, 0, -2, -2, -2, 0, -2, -3, -2, -3],
	[-2, -3, -1, 0, -1, -2, 8, -3, -1, -3, -2, 1, -2, 0, 0, -1, -2, -3, -2, 2],
	[-1, -1, -3, -3, 0, -4, -3, 4, -3, 2, 1, -3, -3, -3, -3, -2, -1, 3, -3, -1],
	[-1, -3, -1, 1, -3, -2, -1, -3, 5, -2, -1, 0, -1, 1, 2, 0, -1, -2, -3, -2],
	[-1, -1, -4, -3, 0, -4, -3, 2, -2, 4, 2, -3, -3, -2, -2, -2, -1, 1, -2, -1],

momvart / LayoutGravityBindingAdapter.kt

Created April 3, 2020 15:15

Android binding adapter for `layout_gravity` attribute

	@BindingAdapter("android:layout_gravity")
	fun setLayoutGravity(view: View, gravity: Int) {
	when (view.layoutParams) {
	is LinearLayout.LayoutParams ->
	(view.layoutParams as LinearLayout.LayoutParams).gravity = gravity
	is FrameLayout.LayoutParams ->
	(view.layoutParams as FrameLayout.LayoutParams).gravity = gravity
	//Add more view groups here
	}
	}

momvart / ButtonHoldClickTriggerTouchListener.kt

Last active August 28, 2021 14:06

A touch listener that makes a touch-and-hold click trigger functionality for you view in Android.

	import android.view.MotionEvent
	import android.view.View
	import androidx.core.view.postDelayed
	import kotlin.math.max

	class ButtonHoldClickTriggerTouchListener(
	private val startDelay: Long = STANDARD_DELAY,
	private val minDelay: Long = STANDARD_MIN_DELAY_BETWEEN_TRIGGERS,
	private val delayReduce: Long = STANDARD_DELAY_REDUCE
	) : View.OnTouchListener {

momvart / CircularProgressBar.kt

Last active August 28, 2021 14:07

My simple implementation of a circular progress bar with support of animation in Android

	import android.animation.ValueAnimator
	import android.content.Context
	import android.graphics.*
	import android.util.AttributeSet
	import android.view.View
	import android.view.animation.AccelerateDecelerateInterpolator
	import android.view.animation.AnimationUtils
	import android.view.animation.Interpolator
	import org.jetbrains.anko.displayMetrics
	import kotlin.math.absoluteValue

momvart / IDXData.java

Last active August 16, 2019 05:36

A set of utility classes to read MNIST IDX files. http://yann.lecun.com/exdb/mnist/

	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Collections;
	import java.util.List;
	import java.util.stream.Collectors;

	public class IDXData {
	protected final ArrayList<Integer> dimensions;
	protected final byte[][] rawData;

momvart / PIPExample.kt

Created August 3, 2019 10:41

A way of showing a PIP window on all apps

	val windowManager = this.getSystemService(Context.WINDOW_SERVICE) as WindowManager
	val windowLayoutParams = WindowManager.LayoutParams()
	windowLayoutParams.width = 300
	windowLayoutParams.height = 300
	windowLayoutParams.x = 400
	windowLayoutParams.y = 400
	windowLayoutParams.format = PixelFormat.TRANSLUCENT
	windowLayoutParams.gravity = Gravity.TOP or Gravity.LEFT
	if (Build.VERSION.SDK_INT >= 26)
	windowLayoutParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY

Mohammad Omidvar momvart