Saúl Díaz Sefford
Sefford
/ AnagramPalindrome
Created
June 10, 2014 10:50
A solution to the problem to find if a String is an anagram of a Palindrome
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // In order to know if a String or char[] is an anagram of a palindrome we look up to the | |
| // math definition of a palindrome: There must be an even number of every char except for the | |
| // case there is a single letter in the middle, in which case we can afford only 1 instance of | |
| // an odd character in the middle. | |
| public boolean solution(char[] input) { | |
| int[] letters = new int[26]; | |
| // We calculate frequencies to each of the letters | |
| for (int i = 0; i < input.length; i++) { | |
| // We lowercase the chars and compensate for the UTF-8 displacement to the right |
Sefford
/ BlurTransformation
Created
May 23, 2014 11:42
Transformation for Picasso that applies a Blur effect to the image
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import android.content.Context; | |
| import android.graphics.Bitmap; | |
| import android.support.v8.renderscript.Allocation; | |
| import android.support.v8.renderscript.Element; | |
| import android.support.v8.renderscript.RenderScript; | |
| import android.support.v8.renderscript.ScriptIntrinsicBlur; | |
| import android.util.Log; | |
| import com.squareup.picasso.Transformation; |
Sefford
/ PartialRoundedTransformation
Last active
January 12, 2024 17:30
Transformation for Picasso that rounds different edges of the screen
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import android.graphics.Bitmap; | |
| import android.graphics.Canvas; | |
| import android.graphics.Paint; | |
| import android.graphics.PorterDuff; | |
| import android.graphics.PorterDuffXfermode; | |
| import android.graphics.Rect; | |
| import android.graphics.RectF; | |
| import com.squareup.picasso.Transformation; |
Sefford
/ TriangleClipTransformation
Created
May 22, 2014 19:52
Clips an image by the diagonal, creating just the right-bottom corner
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import android.graphics.Bitmap; | |
| import android.graphics.Canvas; | |
| import android.graphics.Paint; | |
| import android.graphics.Path; | |
| import android.graphics.PorterDuff; | |
| import android.graphics.PorterDuffXfermode; | |
| import android.graphics.Rect; | |
| import com.squareup.picasso.Transformation; |
Sefford
/ RoundedBorderTransformation
Last active
August 29, 2015 14:01
Picasso Transformation for creating images with rounded corners
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import android.graphics.Bitmap; | |
| import android.graphics.Canvas; | |
| import android.graphics.Paint; | |
| import android.graphics.PorterDuff; | |
| import android.graphics.PorterDuffXfermode; | |
| import android.graphics.Rect; | |
| import android.graphics.RectF; | |
| import com.squareup.picasso.Transformation; |
Sefford
/ CircularTransformation
Created
May 22, 2014 19:46
Picasso transformation to achieve a circular crop of an image
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import android.graphics.Bitmap; | |
| import android.graphics.Canvas; | |
| import android.graphics.Paint; | |
| import android.graphics.PorterDuff; | |
| import android.graphics.PorterDuffXfermode; | |
| import android.graphics.Rect; | |
| import com.squareup.picasso.Transformation; | |
| /** |
NewerOlder