CircleImageView.java 文件源码

private void setup()
{

    if (!mReady)
    {
        mSetupPending = true;
        return;
    }

    if (mBitmap == null)
    {
        return;
    }

    mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);

    mBitmapPaint.setAntiAlias(true);
    mBitmapPaint.setShader(mBitmapShader);

    mBorderPaint.setStyle(Paint.Style.STROKE);
    mBorderPaint.setAntiAlias(true);
    mBorderPaint.setColor(mBorderColor);
    mBorderPaint.setStrokeWidth(mBorderWidth);

    mBitmapHeight = mBitmap.getHeight();
    mBitmapWidth = mBitmap.getWidth();

    mBorderRect.set(0, 0, getWidth(), getHeight());
    mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2, (mBorderRect.width() - mBorderWidth) / 2);

    mDrawableRect.set(mBorderRect);
    if (!mBorderOverlay)
    {
        mDrawableRect.inset(mBorderWidth, mBorderWidth);
    }
    mDrawableRadius = Math.min(mDrawableRect.height() / 2, mDrawableRect.width() / 2);

    updateShaderMatrix();
    invalidate();
}