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Documentation Index

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BlurView is a drop-in Android view that renders a live Gaussian blur over whatever content sits behind it. Use it anywhere you want a frosted-glass panel — floating cards, bottom sheets, dialog backgrounds, or any overlay that needs to feel visually connected to the content underneath while keeping that content legible.

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Usage

<com.qmdeve.blurview.widget.BlurView
    android:id="@+id/blurView"
    android:layout_width="match_parent"
    android:layout_height="100dp"
    app:blurRadius="20dp"
    app:overlayColor="#80FFFFFF"
    app:cornerRadius="24dp"/>

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Attributes

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app:blurRadius
dimension
default:"10"
Blur radius. Higher values produce a stronger, wider blur.
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app:overlayColor
color
default:"#AAFFFFFF"
Overlay color tinted on top of the blurred content. Use an alpha channel to control opacity.
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app:cornerRadius
dimension
default:"0"
Corner radius of the view. Set to clip the blur surface to rounded corners.
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app:setDownsampleFactor
float
default:"0"
Downsample factor applied before blurring. Higher values improve rendering performance at the cost of blur quality.

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API Reference

MethodDescription
setBlurRadius(float)Set the blur radius
setOverlayColor(int)Set the overlay color
setCornerRadius(float)Set the corner radius
setDownsampleFactor(float)Set the downsample factor
On lower-end devices, call setDownsampleFactor() with a value greater than 1 to reduce the resolution of the blur input bitmap before processing. Start around 2–4 and tune until you reach an acceptable balance between frame rate and visual quality.

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