ImageView In Android

[su_youtube_advanced url=”https://www.youtube.com/watch?v=rFgaW7ZjVKU”]

In previous chapter we played around little  bit with with text view 

Now the other view we wanna learn about is image view 

Now here’ the code for image  view 

<ImageView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:src="@drawable/image"    android:scaleType="fitEnd"    />

Now look at the line of code one at a time 

XML elements start with the open angle bracket and then name of the view and then list of attributes then its followed by forward slash then closing angle bracket 

When you wrote the xml for text view it displays the text on the screen so now when we write ImageView it display image on the screen 

There are list of attributes available on android for image view.

We gonna look at some attributes 

Android source the path of image to display on screen 

android:src=”@drawable/image”

Here we use @ symbol which referencing the resource in an android app and drawable is the resource type

We don’t include the file extension, You don’t need to add whether its a  jpg,png or any other type just write the name of file.

If you are going to use the image in android studio then you have to add it manually first in to the drawable folder, 

If i try to referencing an image which don’t exist in drawable folder it generates an error because of invalid image path.

Next you see, Scale type attribute it used to scale the image and mostly used attribute in image view.

You can scale the image, You can add background , you can add border and much more

Go try yourself.

Believe me or not professional developers never memorize everything!