yantoyoung / roundedimageview

a fast ImageView that supports rounded corners

RoundedImageView

A fast ImageView (and Drawable) that supports rounded corners based on the original example from Romain Guy

There are many ways to create rounded corners in android, but this is the fastest and best one that I know of because it:

• does not create a copy of the original bitmap
• does not use a clipPath which is not hardware accelerated and not anti-aliased.
• does not use setXfermode to clip the bitmap and draw twice to the canvas.

If you know of a better method, let me know and I'll implement it!

Also has proper support for:

• Borders (with Colors and ColorStateLists)
• All ScaleTypes
  • Borders are drawn at view edge, not bitmap edge.
  • Except on edges where the bitmap is smaller than the view
  • Borders are not scaled up/down with the image (correct width and radius are maintained)
• Anti-aliasing
• Transparent backgrounds
• Hardware acceleration
• Support for TransitionDrawables (XML attrs only)

Gradle

RoundedImageView is available on Ark.

Add the following to your build.gradle to use:

repositories {
    maven {
        url 'https://raw.github.com/ark/ark/master/releases/'
    }
}

dependencies {
    compile 'com.makeramen:roundedimageview:1.0.0'
}

Maven

Make sure you installed Android 4.2 from the Android Maven Deployer

Build the apk:

git clone https://github.com/vinc3m1/RoundedImageView.git
cd ./RoundedImageView/
mvn clean install

Install and run:

cd ./example
mvn android:deploy android:run

If you want to use the library, add this dependency:

<dependency>
    <groupId>com.makeramen.rounded</groupId>
    <artifactId>library</artifactId>
    <version>0.1</version>
    <type>apklib</type>
</dependency>

Use Library

Define in xml:

<com.makeramen.RoundedImageView
        xmlns:makeramen="http://schemas.android.com/apk/res/com.makeramen.rounded.RoundedImageView"
        android:id="@+id/imageView1"
        android:src="@drawable/photo1"
        android:scaleType="centerCrop"
        makeramen:corner_radius="30dip"
        makeramen:border="2dip"
        makeramen:border_color="#333333"
        makeramen:round_background="true" />

Or in code:

RoundedImageView iv = new RoundedImageView(context);
iv.setScaleType(ScaleType.CENTER_CROP);
iv.setCornerRadius(10);
iv.setBorderWidth(2);
iv.setBorderColor(Color.DKGRAY);
iv.setRoundedBackground(true);
iv.setImageDrawable(drawable);
iv.setBackground(backgroundDrawable);

Known Issues

• Programmatically setting attributes with TransitionDrawables not yet supported.
• Only tested support for BitmapDrawables and TransitionDrawables (with BitmapDrawables in them). Other types might work but may have unexpected behavior.