CircularImageView

A simple library to round your image by using this advance ImageView

It uses a BitmapShader and does not:

• create a copy of the original bitmap
• use a clipPath (which is neither hardware accelerated nor anti-aliased)
• use setXfermode to clip the bitmap (which means drawing twice to the canvas)

As this is just a custom ImageView and not a custom Drawable or a combination of both, it can be used with all kinds of drawables, i.e. a PicassoDrawable from Picasso or other non-standard drawables (needs some testing though).

Step 1. Add it in your root build.gradle at the end of repositories:

allprojects {
		repositories {
			...
			maven { url 'https://www.jitpack.io' }
		}
	}

Step 2. Add the dependency:

dependencies {
    ...
    implementation 'com.github.MicroProgramer:CircularImageView:1.0.3'
}

Usage

<com.microprogramer.library.CircularImageView
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/profile_image"
    android:layout_width="96dp"
    android:layout_height="96dp"
    android:src="@drawable/profile"
    app:civ_border_width="2dp"
    app:civ_border_color="#FF000000"/>

Limitations

• The ScaleType is always CENTER_CROP and you'll get an exception if you try to change it. This is (currently) by design as it's perfectly fine for profile images.
• Enabling adjustViewBounds is not supported as this requires an unsupported ScaleType
• If you use an image loading library like Picasso or Glide, you need to disable their fade animations to avoid messed up images. For Picasso use the noFade() option, for Glide use dontAnimate(). If you want to keep the fadeIn animation, you have to fetch the image into a Target and apply a custom animation yourself when receiving the Bitmap.
• Using a TransitionDrawable with CircularImageView doesn't work properly and leads to messed up images.

FAQ

How can I use a VectorDrawable with CircularImageView?

Short answer: you shouldn't. Using a VectorDrawable with CircularImageView is very inefficient. You should modify your vectors to be in a circular shape and use them with a regular ImageView instead.

Why doesn't CircularImageView extend AppCompatImageView?

Extending AppCompatImageView would require adding a runtime dependency for the support library without any real benefit.

License

Copyright 2014 - 2021 MicroProgramer

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.