Graphics for Android graphical user Interface (ii) Introduction to the main methods of paint class

2. /**

4. * Paint Class Introduction

6.      * 

8. * Paint is a brush, plays a very important role in the drawing process, the brush mainly preserves the color,

10. * style, such as drawing information, specify how to draw text and graphics, brush objects have many settings methods,

12. * Can be broadly divided into two categories, one is related to graphic drawing, the other is related to text rendering.

14.      * 

16. * 1. Graphic drawing

18. * SETARGB (int a,int r,int g,int b);

20. * Set the color to be drawn, a for transparency, and r,g,b for the color value.

22.      * 

24. * SETALPHA (int a);

26. * Set the transparency of the drawing drawing.

28.      * 

30. * setcolor (int color);

32. * Sets the color of the drawing, which is represented by a color value that includes transparency and RGB colors.

34.      * 

36. * Setantialias (boolean aa);

38. * Set whether anti-aliasing is used, consumes large resources, and the drawing speed slows down.

40.      * 

42. * Setdither (Boolean dither);

44. * Set whether to use Image jitter processing, will make the picture color more smooth and full, image clearer

46.      * 

48. * Setfilterbitmap (boolean filter);

50. * If the item is set to True, the image will filter out the optimized operation of the bitmap image during animation to speed up the display

52. * speed, this setting depends on the settings of dither and Xfermode

54.      * 

56. * Setmaskfilter (Maskfilter maskfilter);

58. * Set Maskfilter, can use different maskfilter to achieve the effect of filter, such as filter, stereo, etc.

60.      * 

62. * Setcolorfilter (Colorfilter colorfilter);

64. * Set the color filter to achieve a color-free conversion effect when drawing colors

66.      * 

68. * Setpatheffect (Patheffect effect);

70. * Set the effect of drawing path, such as point drawing line, etc.

72.      * 

74. * Setshader (Shader Shader);

76. * Set the image effect, use shader can draw a variety of gradient effect

78.      * 

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

82. * Set the shadow layer below the graph, create a shadow effect, radius is the angle of the shadow, DX and dy are the distance from the shadow on the x-axis and the y-axis, color is the shade of the shadow

84.      * 

86. * SetStyle (Paint.style Style);

88. * Set the style of the brush for Fill,fill_or_stroke, or STROKE

90.      * 

92. * SETSTROKECAP (Paint.cap Cap);

94. * When the brush style is stroke or fill_or_stroke, set the brush's graphic style, such as the circle style

96. * Cap.round, or square style cap.square

98.      * 

100. * Setsrokejoin (Paint.join Join);

102. * Set how the shapes are combined when drawing, such as smoothing effects, etc.

104.      * 

106. * Setstrokewidth (float width);

108. * When the brush style is stroke or fill_or_stroke, set the thickness of the brush

110.      * 

112. * Setxfermode (Xfermode xfermode);

114. * Set the process of drawing overlap, such as merging, taking intersection or union, often used to make eraser effect.

116.      * 

118. * 2. Text rendering

120. * Setfakeboldtext (Boolean fakeboldtext);

122. * Simulation To implement bold text, set in small font effect will be very poor

124.      * 

126. * Setsubpixeltext (Boolean subpixeltext);

128. * Setting this to True will help to display the text on the LCD screen

130.      * 

132. * SetTextAlign (paint.align Align);

134. * Set the alignment direction of the drawing text

136.      * 

138. * Settextscalex (float scaleX);

140. * Set the scale of the drawing text x axis, can achieve the effect of the text stretching

142.      * 

144. * Settextsize (float textSize);

146. * Set font size for drawing text

148.      * 

150. * SETTEXTSKEWX (float skewx);

152. * Set italic text, skewx to oblique radians

154.      * 

156. * Settypeface (Typeface Typeface);

158. * Set typeface object, that is, font style, including bold, italic and liner body, non-liner body, etc.

160.      * 

162. * Setunderlinetext (Boolean underlinetext);

164. * Set underlined text effects

166.      * 

168. * Setstrikethrutext (Boolean strikethrutext);

170. * Set the effect with strikethrough

172.      * 

174.      */

Graphics for Android graphical user Interface (ii) Introduction to the main methods of paint class