IconCache.java 文件源码

private static void initStatics(Context context) {
    final Resources resources = context.getResources();
    final DisplayMetrics metrics = resources.getDisplayMetrics();
    final float density = metrics.density;

    sIconWidth = sIconHeight = (int) resources.getDimension(android.R.dimen.app_icon_size);
    sIconTextureWidth = sIconTextureHeight = sIconWidth;
    sBlurPaint.setMaskFilter(new BlurMaskFilter(5 * density, BlurMaskFilter.Blur.NORMAL));
    sGlowColorPressedPaint.setColor(0xffffc300);
    sGlowColorFocusedPaint.setColor(0xffff8e00);

    ColorMatrix cm = new ColorMatrix();
    cm.setSaturation(0.2f);
    sDisabledPaint.setColorFilter(new ColorMatrixColorFilter(cm));
    sDisabledPaint.setAlpha(0x88);
}