Android paint class

/**

* Paint class Introduction

*

* Paint is the paint brush, which plays an extremely important role in the drawing process. The paint brush mainly stores the color,

* Style and other painting information, specifying how to draw text and graphics, there are many ways to set the paint brush object,

* Generally, there are two types: one is related to drawing, and the other is related to text drawing.

*

* 1. Drawing

* Setargb (int A, int R, int g, int B );

* Set the color of the painting. A indicates transparency, R, G, and B indicates the color value.

*

* Setalpha (int );

* Set the transparency of the drawing.

*

* Setcolor (INT color );

* Set the color to be drawn, which is represented by a color value. The color value includes transparency and RGB color.

*

* Setantialias (Boolean aa );

* Setting whether to use the anti-aliasing function consumes a large amount of resources and slows down the drawing speed.

*

* Setdither (Boolean dither );

* Setting whether to use image jitter processing will make the color of the drawn image smoother and fuller, and the image clearer

*

* Setfilterbitmap (Boolean filter );

* If this parameter is set to true, the bitmap image is filtered out during the animation to accelerate the display.

* Speed. This setting item depends on dither and xfermode settings.

*

* Setmaskfilter (maskfilter );

* Set maskfilter. Different maskfilters can be used to implement filter effects, such as filtering and stereo *

* Setcolorfilter (colorfilter );

* Set the color filter to achieve the effect of changing colors that are not needed when drawing colors.

*

* Setpatheffect (patheffect effect );

* Set the effect of the draw path, such as drawing a line.

*

* Setshader (shader );

* Set the image effect. You can use shader to draw different gradient effects.

*

* Setshadowlayer (float radius, float dx, float dy, int color );

* Set the shadow layer under the image to produce the shadow effect. radius indicates the shadow angle. dx and Dy indicate the distance between the shadow on the X and Y axes, and color indicates the shadow color.

*

* Setstyle (paint. Style );

* Set the paint brush style to fill, fill_or_stroke, or stroke.

*

* Setstrokecap (paint. Cap CAP );

* When the paint brush style is stroke or fill_or_stroke, set the image style of the brush, such as the circle style.

* Cap. round, or square style cap. Square

*

* Setsrokejoin (paint. Join join );

* Set the combination of various images during painting, such as smooth effects.

*

* Setstrokewidth (float width );

* When the paint brush style is stroke or fill_or_stroke, set the width of the paint brush.

*

* Setxfermode (xfermode );

* Sets the processing method for overlapping images, such as merge, intersection, or union. It is often used to make the eraser erasure effect.

*

* 2. Text Rendering

* Setfakeboldtext (Boolean fakeboldtext );

* Simulate bold text and set it to a small font.

*

* Setsubpixeltext (Boolean subpixeltext );

* Setting this parameter to true will help display the text on the LCD screen.

*

* Settextalign (paint. Align align );

* Set the alignment direction of the drawn text

*

* Settextscalex (float scalex );

* You can set the zoom ratio on the X axis of the drawn text to stretch the text.

*

* Settextsize (float textsize );

* Set the font size of the drawn text.

*

* Settextskewx (float skewx );

* Set italic text. skewx is a skewed radian.

*

* Settypeface (typeface );

* Set the typeface object, that is, the font style, including bold, italic, and linefeed, non-linefeed, etc.

*

* Setunderlinetext (Boolean underlinetext );

* Set the underlined text effect.

*

* Setstrikethrutext (Boolean strikethrutext );

* Set the effect of strikethrough.

*

*/