Image from sqlite android

Android SQLite – Save Images

In this tutorial we will be learning how to work with SQLite database when it comes to images. Basically how to save images in sqlite database. This can be done in two ways:

1. Saving image path/url instead of actual image data. This is the better approach.
2. Saving actual image data or blob in sqlite database.

Let’s look at some examples:

Example 1: Android SQLite Database – ListView Web Images – Save Text,Image URLs,Load

Android SQLite Database – ListView Web Images – Save Text,Image URLs,Load.

Working with SQLite and images from the web.

Now people we discuss Android SQLite database and Internet images .Our purpose is simple : get image urls from the web and maybe some text,save them in SQlite database,Load the images from the internet,of course URLs from SQlite database. Basically this is what we do here :

1. Download Images From the Web,in an image hosting site in my case, or anywhere for you.
2. Save the image URLs and some text that we type in beautiful Material EditTexts. 3. Save these to our database : name and image url.Our SQLite database.
3. Retrieve them from our database,our name and image url.
4. Show them in our custom ListView: images and text. 6.We use the nice Picasso library to download and cache images automatically,both in memory and disk.

What You Will Leanr From This Tutorial

1. How to save both text and web image urls in SQLite database.
2. How to retrieve text and image urls from sqlite database and render them in custom listview with text and images.
3. Custom ListView with CardViews filled from SQLite.
4. How to use SQLiteDatabase and SQLiteOpenHelper classes.
5. How to use Picasso to load and cache images with urls coming from SQLite.

Obviously we are loading images from online so we need to add internet permission in our androidmanifest.xml :

PicassoClient

We shall be using Picasso to download our images,so lets write a basic Picasso client :

Constants

We have three database classes,Constants,DBHelper and DBAdapter. Constants to hold SQLite database constants.DBHelperr to upgrade our SQLite database table and DBAdapter to perform CRUD SQlite operations. Here’s our Constants :

DBAdapter

Then here’s our DBAdapter :

CustomAdapter

We have our CustomAdapter class that will bind data to ListView :

MainActivity

Here’s our MainActivity class :

Hey,look,everything is in the Source code download above.Some classes like ViewHolder,TVShow,DBHelper are there.Just download it and import to your android studio.

If you prefer more explanations as well as well as demo please check the below video tutorial.Please don’t mind the audio quality. http://www.youtube.com/watch?v=7zipXNhcV-o

Download

Also check our video tutorial it’s more detailed and explained in step by step and will guide you through how setup our free Cloudinary account where we store images. However note that it is not mandatory to use Cloud services to store images. Your images can come from anywhere,

No.	Location	Link
1.	GitHub	Direct Download)
2.	GitHub	Browse
3.	YouTube	Video Tutorial
4.	YouTube	Our YouTube Channel

Example 2: Android SQLite – RecyclerView Web Images – Save Text ,Image URLs ,Retrieve

Android SQLite – RecyclerView Web Images – Save Text ,Image URLs ,Retrieve Tutorial.

Hello friends,today we basically discuss the following,in a practical was as we always do obviously:

1. Download Images From the Web,in an image hosting site in my case, or anywhere for you.
2. Save the image URLs and some text that we type in beautiful Material EditTexts. 3. Save these to our database : name and image url.Our SQLite database.
3. Retrieve them from our database,our name and image url.
4. Show them in our custom RecyclerView : images and text.
5. We use the nice Picasso library to download and cache images automatically,both in memory and disk.

RecyclerView SQlite Images Project Structure

First make sure you add the internet permission as we shall be fetching images from online.Actually in this case I used Cloudinary to store my image.

We shall be using Picasso library to fetch our images from the cloud.So lets add its dependency in our build.gradle :

PicassoClient.java

Then write a simple Picasso Client to fetch image given a url :

Constants.java

Lets have all our SQLite database constants in one place.This makes them easy to reuse and in case we change something it gets reflected al over.

DBAdapter.java

Then here’s our DBAdapter class that shall be responsible for SQlite CRUD :

MyAdapter.java

We also have our RecyclerView adapter class to bind our dataset to RecyclerView.The class is a child of RecyclerView.Adapter :

MainActivity.java

Here’s our MainActivity class :

Download

Look all the source code is above just a download away.There some classes we have not included here but are in the source code.Download it,extract and import to your android studio.

Below is the video tutorial.If you prefer more explanations and demo visit it.

No.	Location	Link
1.	GitHub	Direct Download)
2.	GitHub	Browse
3.	YouTube	Video Tutorial
4.	YouTube	Our YouTube Channel

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Android SQLite – Save Images

In this tutorial we will be learning how to work with SQLite database when it comes to images. Basically how to save images in sqlite database. This can be done in two ways:

1. Saving image path/url instead of actual image data. This is the better approach.
2. Saving actual image data or blob in sqlite database.

Let’s look at some examples:

Example 1: Android SQLite Database – ListView Web Images – Save Text,Image URLs,Load

Android SQLite Database – ListView Web Images – Save Text,Image URLs,Load.

Working with SQLite and images from the web.

Now people we discuss Android SQLite database and Internet images .Our purpose is simple : get image urls from the web and maybe some text,save them in SQlite database,Load the images from the internet,of course URLs from SQlite database. Basically this is what we do here :

1. Download Images From the Web,in an image hosting site in my case, or anywhere for you.
2. Save the image URLs and some text that we type in beautiful Material EditTexts. 3. Save these to our database : name and image url.Our SQLite database.
3. Retrieve them from our database,our name and image url.
4. Show them in our custom ListView: images and text. 6.We use the nice Picasso library to download and cache images automatically,both in memory and disk.

What You Will Leanr From This Tutorial

1. How to save both text and web image urls in SQLite database.
2. How to retrieve text and image urls from sqlite database and render them in custom listview with text and images.
3. Custom ListView with CardViews filled from SQLite.
4. How to use SQLiteDatabase and SQLiteOpenHelper classes.
5. How to use Picasso to load and cache images with urls coming from SQLite.

Obviously we are loading images from online so we need to add internet permission in our androidmanifest.xml :

PicassoClient

We shall be using Picasso to download our images,so lets write a basic Picasso client :

Constants

We have three database classes,Constants,DBHelper and DBAdapter. Constants to hold SQLite database constants.DBHelperr to upgrade our SQLite database table and DBAdapter to perform CRUD SQlite operations. Here’s our Constants :

DBAdapter

Then here’s our DBAdapter :

CustomAdapter

We have our CustomAdapter class that will bind data to ListView :

MainActivity

Here’s our MainActivity class :

Hey,look,everything is in the Source code download above.Some classes like ViewHolder,TVShow,DBHelper are there.Just download it and import to your android studio.

If you prefer more explanations as well as well as demo please check the below video tutorial.Please don’t mind the audio quality. http://www.youtube.com/watch?v=7zipXNhcV-o

Download

Also check our video tutorial it’s more detailed and explained in step by step and will guide you through how setup our free Cloudinary account where we store images. However note that it is not mandatory to use Cloud services to store images. Your images can come from anywhere,

No.	Location	Link
1.	GitHub	Direct Download)
2.	GitHub	Browse
3.	YouTube	Video Tutorial
4.	YouTube	Our YouTube Channel

Example 2: Android SQLite – RecyclerView Web Images – Save Text ,Image URLs ,Retrieve

Android SQLite – RecyclerView Web Images – Save Text ,Image URLs ,Retrieve Tutorial.

Hello friends,today we basically discuss the following,in a practical was as we always do obviously:

1. Download Images From the Web,in an image hosting site in my case, or anywhere for you.
2. Save the image URLs and some text that we type in beautiful Material EditTexts. 3. Save these to our database : name and image url.Our SQLite database.
3. Retrieve them from our database,our name and image url.
4. Show them in our custom RecyclerView : images and text.
5. We use the nice Picasso library to download and cache images automatically,both in memory and disk.

RecyclerView SQlite Images Project Structure

First make sure you add the internet permission as we shall be fetching images from online.Actually in this case I used Cloudinary to store my image.

We shall be using Picasso library to fetch our images from the cloud.So lets add its dependency in our build.gradle :

PicassoClient.java

Then write a simple Picasso Client to fetch image given a url :

Constants.java

Lets have all our SQLite database constants in one place.This makes them easy to reuse and in case we change something it gets reflected al over.

DBAdapter.java

Then here’s our DBAdapter class that shall be responsible for SQlite CRUD :

MyAdapter.java

We also have our RecyclerView adapter class to bind our dataset to RecyclerView.The class is a child of RecyclerView.Adapter :

MainActivity.java

Here’s our MainActivity class :

Download

Look all the source code is above just a download away.There some classes we have not included here but are in the source code.Download it,extract and import to your android studio.

Below is the video tutorial.If you prefer more explanations and demo visit it.

No.	Location	Link
1.	GitHub	Direct Download)
2.	GitHub	Browse
3.	YouTube	Video Tutorial
4.	YouTube	Our YouTube Channel

report this ad

Oclemy

Thanks for stopping by. My name is Oclemy(Clement Ochieng) and we have selected you as a recipient of a GIFT you may like ! Together with Skillshare we are offering you PROJECTS and 1000s of PREMIUM COURSES at Skillshare for FREE for 1 MONTH. To be eligible all you need is by sign up right now using my profile .

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Сохранение изображения в базе данных SQLite в вашем приложении Android

Когда вы начнете кэшировать данные в локальной базе данных из вашего приложения Android, рано или поздно вам также потребуется сохранить изображения в этой базе данных. Например, если вы храните отчеты о наблюдениях, которые пользователи проводят в поле, которое будет загружено в основную систему позже, может быть удобно добавить изображение, чтобы лучше описать проблему.

Первая идея, которая приходит на ум для хранения этих изображений, — это сохранение их непосредственно в базе данных в виде больших двоичных объектов (больших двоичных объектов). Это может работать, но это не самый эффективный способ сделать это, поскольку SQLite предназначен для хранения значений, а не больших двоичных значений. Кроме того, локальная база данных может стать довольно большой, особенно если вам нужно сохранить полноразмерные высококачественные изображения. Вы можете проверить эталонный тест на официальном сайте SQLite по адресу https://www.sqlite.org/intern-v-extern-blob.html, если хотите получить лучшее представление о производительности.

В этом случае вы действительно хотите сохранить только путь к изображению в вашей базе данных и сохранить изображение во внутреннем хранилище вашего приложения. Когда вам нужно использовать изображение, вы можете просто использовать путь для извлечения изображения из файловой системы. Я рекомендую вам сохранить изображения во внутреннем хранилище, так как они доступны только из вашего приложения и доступны в любое время; фактически, сама база данных SQLite также хранится во внутренней памяти.

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