CircleImageView

A fast circular ImageView perfect for profile images. This is based on RoundedImageView from Vince Mi which itself is based on techniques recommended by Romain Guy.

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).

Gradle

dependencies {
    ...
    compile 'de.hdodenhof:circleimageview:2.1.0'
}

Usage

<de.hdodenhof.circleimageview.CircleImageView
    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 CircleImageView doesn't work properly and leads to messed up images.

Changelog

2.1.0
- Add support for padding
- Add option to disable circular transformation
- Fix hairline gap being drawn between image and border under some conditions
- Fix NPE when using tint attribute (which is not supported)
- Deprecate fill color as it seems to cause quite some confusion
2.0.0
- BREAKING: Custom xml attributes are now prefixed with "civ_"
- Graceful handling of incompatible drawables
- Add support for a fill color shown behind images with transparent areas
- Fix dimension calculation issues with small images
- Fix bitmap not being cleared when set to null
1.3.0
- Add setBorderColorResource(int resId)
- Add resource type annotations
- Add border_overlay attribute to allow drawing border on top of the base image
1.2.2
- Add ColorFilter support
1.2.1
- Fix ColorDrawables not being rendered properly on Lollipop
1.2.0
- Add support for setImageURI(Uri uri)
- Fix view not being initialized when using CircleImageView(Context context)
1.1.1
- Fix border being shown although border width is set to 0
1.1.0
- Add support for ColorDrawables
- Add getters and setters for border color and border width
1.0.1
- Prevent crash due to OutOfMemoryError
1.0.0
- Initial release

License