Wärting Innovative Solutions

Splunk is spamming by pretending to send out personalized emails without unsubscribe link which apparently is automated and does not understand that the same message is sent to the same person multiple times.

Here is a simple project that shows how to make chat bubbles in android.
http://warting.github.com/AndroidChatBubbles/

It’s a good project to inspect if you want to learn some basic stuff from the following parts:

• How to design Nine patch images
• How to use a listview
• How to connect a array adapter to a listview
• How to populate a array adapter on the fly
• How to generate random lorem ipsum text

Learn how to create android chat bubbles

If you have some activities in an android application and what to close all activities without having to worry about the back button, you can register a broadcast receiver that get triggered when you push the logout button.

Lets create a new class that we can inherit on all activities that requires login:

public class LogedInActivity extends Activity {

	public class LogoutReceiver extends BroadcastReceiver {
		@Override
		public void onReceive(Context context, Intent intent) {
			if (intent.getAction().equals("com.package.ACTION_LOGOUT")) {
				finish();
			}
		}
	}

	private LogoutReceiver logoutReceiver;

	@Override
	protected void onDestroy() {
		// Unregister the logout receiver
		unregisterReceiver(logoutReceiver);
		super.onDestroy();
	}

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		logoutReceiver = new LogoutReceiver();

		// Register the logout receiver
		IntentFilter intentFilter = new IntentFilter();
		intentFilter.addAction("com.package.ACTION_LOGOUT");
		registerReceiver(logoutReceiver, intentFilter);

	}

}

Then when you press the logout button you can close all open activities by just sending a broadcast intent:

// on your logout method:
Intent broadcastIntent = new Intent();
broadcastIntent.setAction("com.package.ACTION_LOGOUT");
c.sendBroadcast(broadcastIntent);

This is a PHP script to determine if an image is an valid 9 patch PNG image that can be used in an android application

<?php 

$src = dirname(__FILE__).'/btn.9.png'; //change me
if(function_exists('imagecreatefrompng') && function_exists('imagecolorat')) {
	$isvalid = IsValid9PatchImage($src);
	print $src . ' is a ' . ($isvalid ? 'valid':'invalid') . ' 9patch image';
}
else {
	print "Could not check if ".$src." is a valid 9patch image. the php functions imagecreatefrompng and imagecolorat is required";
}

function IsValid9PatchImage($pngRel) {
	$im = imagecreatefrompng($pngRel);
	$height = imagesy($im);
	$width = imagesx($im);
	
	//Not a valid png image?
	if($height <= 0 || $width <= 0) {
		return false;
	}
	$anyBlack = false;
	for($x = 0; $x < $width; $x++){
		$y = 0;
		$rgba = imagecolorat($im,$x,$y);
		$alpha = ($rgba & 0x7F000000) >> 24;
		$red = ($rgba & 0xFF0000) >> 16;
		$green = ($rgba & 0x00FF00) >> 8;
		$blue = ($rgba & 0x0000FF);
		
		$isAlpha = false;
		$isBlack = false;
		if($alpha == 0 && $red == 0 && $green == 0 && $blue == 0) {
			$isBlack = true;
			$anyBlack = true;
		}
		else if($alpha == 127) {
			$isAlpha = true;
		}
		
		//If the top left pixel is not transparent then false
		if($x == 0 && $isAlpha == false) {
			//die('If the top left pixel is not transparent then false. x:' . $x . ' y:' . $y);
			return false;
		}
		
		//If the top right pixel is not transparent then false
		if($x == $width-1 && $isAlpha == false) {
			//die('If the top right pixel is not transparent then false. x:' . $x . ' y:' . $y);
			return false;
		}
		
		//If it is not completly transparent or black, then false 
		if(!$isAlpha && !$isBlack) {
			//die('If it is not completly transparent or black, then false. x:' . $x . ' y:' . $y);
			return false;
		}
	}
	if($!anyBlack) {
		return false;
	}

	$anyBlack = false;
	for($y = 0; $y < $height; $y++){
		$x = 0;
		$rgba = imagecolorat($im,$x,$y);
		$alpha = ($rgba & 0x7F000000) >> 24;
		$red = ($rgba & 0xFF0000) >> 16;
		$green = ($rgba & 0x00FF00) >> 8;
		$blue = ($rgba & 0x0000FF);
		
		$isAlpha = false;
		$isBlack = false;
		if($alpha == 0 && $red == 0 && $green == 0 && $blue == 0) {
			$isBlack = true;
			$anyBlack = true;
		}
		else if($alpha == 127) {
			$isAlpha = true;
		}
		
		//If the top left pixel is not transparent then false
		if($y == 0 && $isAlpha == false) {
			//die('If the top left pixel is not transparent then false. x:' . $x . ' y:' . $y);
			return false;
		}
		
		//If the top right pixel is not transparent then false
		if($y == $width-1 && $isAlpha == false) {
			//die('If the top right pixel is not transparent then false. x:' . $x . ' y:' . $y);
			return false;
		}
		
		//If it is not completly transparent or black, then false 
		if(!$isAlpha && !$isBlack) {
			//die('If it is not completly transparent or black, then false. x:' . $x . ' y:' . $y);
			return false;
		}
	}
	if($!anyBlack) {
		return false;
	}

	return true;
}



?>