Android TileMode effect water ripple effect ring gradient, androidtilemode

Android TileMode effect water ripple effect ring gradient, androidtilemode

TileMode is an enumeration class located in the android. graphics. Shader class.

Android source code

    public enum TileMode {        /**         * replicate the edge color if the shader draws outside of its         * original bounds         */        CLAMP   (0),        /**         * repeat the shader's image horizontally and vertically         */        REPEAT  (1),        /**         * repeat the shader's image horizontally and vertically, alternating         * mirror images so that adjacent images always seam         */        MIRROR  (2);        TileMode(int nativeInt) {            this.nativeInt = nativeInt;        }        final int nativeInt;    }

Today, we mainly test the effects of these attributes. First, paste some test code:

    private void drawTextRadial(Canvas canvas, RectF rectF) {        canvas.save();        float centerX = rectF.centerX();        float centerY = rectF.centerY();        float radius = rectF.height();        RadialGradient gradient = new RadialGradient(centerX, centerY, radius, Color.GREEN, Color.RED, TileMode.CLAMP);         Paint paint = new Paint();        paint.setAntiAlias(true);        paint.setStyle(Paint.Style.FILL);        paint.setTextSize(TEXTSIZE);        paint.setFakeBoldText(true);        paint.setShader(gradient);        canvas.drawText(mText, rectF.left, rectF.bottom, paint);        canvas.restore();    }

CLAMP indicates that if the specified area is exceeded, the edge effect is repeated:

REPEAT means to REPEAT in the vertical and horizontal directions, to see the effect:

MIRROR indicates that the image is displayed in the vertical and horizontal directions: