Abdallah Abdelazim Abdallah-Abdelazim

Template for creating desktop entries (launchers) on Linux

Create the following file, with your favourite editor:

Across all users: /usr/share/applications/application_name.desktop
For current user only: ~/.local/share/applications/application_name.desktop

Add the following content to the file and save:

[Desktop Entry]
Version=1.0

Handling Multiple Github Accounts on MacOS

The only way I've succeeded so far is to employ SSH.

Assuming you are new to this like me, first I'd like to share with you that your Mac has a SSH config file in a .ssh directory. The config file is where you draw relations of your SSH keys to each GitHub (or Bitbucket) account, and all your SSH keys generated are saved into .ssh directory by default. You can navigate to it by running cd ~/.ssh within your terminal, open the config file with any editor, and it should look something like this:

Host *
 AddKeysToAgent yes

> UseKeyChain yes

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    getWindow().getDecorView().setSystemUiVisibility(
            View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);

    getWindow().setStatusBarColor(ContextCompat.getColor(this, android.R.color.transparent));
}

How to make a Release Android App debuggable

Let's say you want to access the application shared preferences in /data/data/com.mypackage.
You could try to run adb shell and then run-as com.mypackage ( or adb shell run-as com.mypackge ls /data/data/com.mypackage/shared_prefs), but on a production release app downloaded from an app store you're most likely to see:

run-as: Package 'com.mypackage' is not debuggable

Hexadecimal color code for transparency

How to set transparency with hex value ?

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

	/*
	* Copyright 2017 Google Inc.
	* Copyright 2020 Abdallah Abdelazim.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*

	/**
	* Useful utility methods for controlling the length & adding padding to strings.
	*
	* @author Abdallah Abdelazim
	*/
	public final class StrPad {

	/**
	* Prevent instantiation.
	*/

	import android.view.View;

	/**
	* inspired and credits
	* @see http://stackoverflow.com/questions/16534369/avoid-button-multiple-rapid-clicks
	* A Debounced OnClickListener
	* Rejects clicks that are too close together in time.
	* This class is safe to use as an OnClickListener for multiple views, and will debounce each one separately.
	* This class allows a single click and prevents multiple clicks on
	* the same button in rapid succession. Setting unclickable is not enough

	if [ $# -eq 0 ]; then
	echo "No arguments supplied"
	else if [ -f "$1" ]; then
	echo " Creating different dimensions (dips) of "$1" ..."
	mkdir -p drawable-xxhdpi
	mkdir -p drawable-xhdpi
	mkdir -p drawable-hdpi
	mkdir -p drawable-mdpi

	if [ $1 = "ic_launcher.png" ]; then

	public class LoginActivity extends AppCompatActivity {

	private static final int RC_SIGN_IN = 343;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_main);
	Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
	setSupportActionBar(toolbar);