Android ImageView Kotlin

15-Sep-2024

Learn how to display and style images with ImageView in Android Studio Project Kotlin

ImageView is a widget that is used to display images. You can use it to load images from various sources, such as resources, files, or the internet. Here's a simple example of using ImageView in an Android application:

Here is the tutorial for Java

There Are Some Common Attributes for ImageView :

id	This ID serves as the control's unique identity.
layout_width	match_parent -> Text area contains fullscreen wrap_content-> Text area contains only text size
layout_width	match_parent -> Text area contains fullscreen wrap_content-> Text area contains only text size
scaleType	You can change Image Set Type center, centerCrop, centerInside, fitCenter, fitEnd, fitStart, fitXY

Step 1:
File open res/layout/activity_main.xml file −:


<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:layout_margin="20dp"
        android:orientation="vertical">


        <ImageView
            android:id="@+id/imageView1"
            android:layout_width="200dp"
            android:layout_height="200dp"
            android:layout_marginTop="10dp"
            android:src="@drawable/profile1" />

        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="200dp"
            android:layout_height="200dp"
            android:layout_marginTop="10dp"
            android:src="@drawable/profile2" />

        <ImageView
            android:id="@+id/imageView3"
            android:layout_width="200dp"
            android:layout_height="200dp"
            android:layout_marginTop="10dp"
            android:src="@drawable/profile2" />

        <Button
            android:id="@+id/submitButton"
            android:layout_width="match_parent"
            android:layout_marginTop="10dp"
            android:layout_height="wrap_content"
            android:text="Submit" />
    </LinearLayout>



</RelativeLayout>

Step 2:

File open com.microappvalley.newtestproject/MainActivity.kt file −

Kotlin:


package com.microappvalley.newtestproject

import android.annotation.SuppressLint
import android.graphics.BitmapFactory
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.ImageView
import android.widget.Switch
import android.widget.Toast

class MainActivity : AppCompatActivity() {
    @SuppressLint("MissingInflatedId")
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val  imageView1:ImageView=findViewById(R.id.imageView1)
        val  imageView2:ImageView=findViewById(R.id.imageView2)
        val  imageView3:ImageView=findViewById(R.id.imageView3)

        // Image Set From drawable
        imageView1.setImageResource(R.drawable.profile1)

        //Set Iamge From Bitmap
        val bitmap = BitmapFactory.decodeResource(resources, R.drawable.profile2)
        imageView2.setImageBitmap(bitmap)

    }
}