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You're reading from  Android Programming with Kotlin for Beginners

Product typeBook
Published inApr 2019
Reading LevelIntermediate
PublisherPackt
ISBN-139781789615401
Edition1st Edition
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Author (1)
John Horton
John Horton
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John Horton

John Horton is a programming and gaming enthusiast based in the UK. He has a passion for writing apps, games, books, and blog articles. He is the founder of Game Code School.
Read more about John Horton

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Creating bitmap graphics with the Bitmap class


Let's examine a bit of theory before we dive into the code and consider exactly how we are going to draw images to the screen. To draw a bitmap graphic, we will use the drawBitmap function of the Canvas class.

First, we will need to add a bitmap graphic to the project in the res/drawable folder – we will do this in reality in the Bitmap demo app later. For now, assume that the graphics file/bitmap has a name of myImage.png.

Next, we will declare an object of the Bitmap type in the same way that we did for the Bitmap object that we used for our background in the previous demo.

Next, we will need to initialize the myBitmap instance using our preferred image file, which we previously added to the project's drawable folder:

myBitmap = BitmapFactory.decodeResource
                (resources, R.drawable.myImage)

The decodeResource function of the BitmapFactory class is used to initialize myBitmap. It takes two parameters; the first is the resources property...

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Android Programming with Kotlin for Beginners
Published in: Apr 2019Publisher: PacktISBN-13: 9781789615401

Author (1)

author image
John Horton

John Horton is a programming and gaming enthusiast based in the UK. He has a passion for writing apps, games, books, and blog articles. He is the founder of Game Code School.
Read more about John Horton