Display JPG images in an Adroid App

Create an Adroid Application to simple show thumbNails and JPG pictures from an archived file with a certain structure (see below, no compression involved)

The archive does not need to employ compression/decompression. We use it as a simple container, the JPG files could be simply read as data buffers; encryption will be applied later

The application will only have to show thumbnails of this pictures (by dynamically resizing the pictures), the full picture and buttons:

SlideShow Random, SlideShow and Settings

Upper row: Title 1 (Customizable)

Second Row: Message Window

Third Row: Category Thumbnails (should be taken from the main pictures folders, CAT_1_Thumb.jpg... [url removed, login to view])

Fourth Row: Text: "Pics in CAT X (Selected Category): MMMM"

Left: Selected Category Pic 1.1... etc

Picture 1 from category 1 is by default: [url removed, login to view]

When pressed the image becomes partially full screen or full screen, as explained in the attached picture


Application should be somewhat customizable;

Image files should be loaded locally, therefore, all pictures are in the .apk; no internet link, the app works offline

Image files are called [url removed, login to view] (from first pic in cat1) to [url removed, login to view] (Picture Index MMMM from Category N)

I should be able to modify <all> text variables (ex: #define Cat3 "CloseUps")

A slideshow button to start a slideshow on files from a particular CATegory; always ask: Start from Pic 1.1 or continue from previously shown Slideshow pictures (settings customizable)

EX: Never start a slideshow from a CAT II when CAT III is selected

A Random Slideshow button also available; start with random pics: Show "Pic_?_?????.jpg"

The single DB or archive of files should have a simple structure that could be modified later on:

You make your own DB to test, following this structure:

4 bytes archive header (will be checked against a mask, say 0xFABACADA)

4 bytes - Total Count of Files

4 bytes - CheckSum of ARCHIVE (- the CheckSum value); could be md5 or any other simple method

2 bytes - Number of categories (CAT I, CAT II... CAT N etc)

4 bytes - CAT I Picture Count

4 bytes - CAT II Picture Count

4 bytes - CAT III Picture Count

4 bytes - CAT IV Picture Count


4 bytes - CAT N Picture Count

Picture I from Cat I


Picture N from Cat I


Picture I from Cat N


Picture N from Cat N

Some markers in between or... a prescreening of archive when the app starts to know where to extract these from

You can do your test with 1-2 JPGs in each category ex: Flowers - 2 pictures, Houses: 2 pictures, CARs: 2 pictures, Tools: 2 pictures, Buildings: 2 pictures

GUI requirements:

See atached pictures;


I need an archive with all the source files and instructions:

I expect to simply load the project, press "Build" and create a final APK.

First, put mockup image files for proof of concept. CAT_1_Thumb.jpg... [url removed, login to view], then [url removed, login to view] to [url removed, login to view] (max 100000 files)

could be any pictures in this mock-up application

Files delivered should respect Google Play admission requirements (quality of work, size, time to load, etc)

Android Version 4.X and up

Habilidades: Android, iPhone, Java, Mobile App Development, Arquitetura de software

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Acerca do Empregador:
( 0 comentários ) Bucharest, Romania

ID do Projeto: #16485137

31 freelancers estão ofertando em média €193 para esse trabalho


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