Android Color Rendering (quad) Bitmapshader bitmap rendering

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Android Color processing (quad) Bitmapshader bitmap rendering

Public Bitmapshader(Bitmap bitmap,shader.tilemode tilex,shader.tilemode Tiley)

Call this method to produce a renderer (Shader) that draws a bitmap.

bitmap bitmaps used within the renderer

Tilex   The tiling mode for x to draw the bitmap in. X-Direction renderer tiling mode on bitmap

Tiley    The tiling mode for Y-draw the bitmap in. The Y-direction renderer tiling mode on the bitmap

Tilemode:

CLAMP : If the renderer exceeds the original boundary range, the range edge staining is copied.

REPEAT : Landscape and portrait Repeat renderer picture, tiled.

MIRROR : Horizontal and vertical duplicate renderer picture, this is not the same as the repeat repetition, he is tiled in a mirrored manner.

First Look at:

or directly on the code:

Mainactivity:

[Java]View PlainCopy

2. Package com.tony.shader;
6. Import Android.os.Bundle;
8. Import android.app.Activity;
12. Public class Mainactivity extends Activity {
16. private Bitmapshaderview Shaderview;
20. @Override
22. protected void OnCreate (Bundle savedinstancestate) {
24. super.oncreate (savedinstancestate);
28. Shaderview = New Bitmapshaderview (this);
30. Setcontentview (Shaderview);
34. }
38. }

Bitmapshaderview:

[Java]View PlainCopy

2. Package com.tony.shader;
6. Import Android.content.Context;
8. Import Android.graphics.Bitmap;
10. Import Android.graphics.BitmapShader;
12. Import Android.graphics.Canvas;
14. Import Android.graphics.Paint;
16. Import Android.graphics.Shader;
18. Import android.graphics.drawable.BitmapDrawable;
20. Import android.graphics.drawable.ShapeDrawable;
22. Import Android.graphics.drawable.shapes.OvalShape;
24. Import Android.util.AttributeSet;
26. Import Android.view.View;
30. Public class Bitmapshaderview extends View {
34. private Bitmapshader bitmapshader = null;
36. private Bitmap Bitmap = null;
38. Private Paint paint = null;
40. private Shapedrawable shapedrawable = null;
42. private int bitmapwidth = 0;
44. private int bitmapheight = 0;
48. Public Bitmapshaderview (context context) {
50. super (context);
54. //Get images
56. Bitmap = ((bitmapdrawable) getresources (). getdrawable (R.drawable.cat))
58. . Getbitmap ();
60. Bitmapwidth = Bitmap.getwidth ();
62. Bitmapheight = Bitmap.getheight ();
64. //Construct renderer Bitmapshader
66. Bitmapshader = New Bitmapshader (bitmap, shader.tilemode.mirror,shader.tilemode.repeat);
68. }
72. Public Bitmapshaderview (Context context,attributeset set) {
74. Super (context, set);
76. }
82. @Override
84. protected void OnDraw (canvas canvas) {
86. //TODO auto-generated method stub
88. Super.ondraw (canvas);
90. //Crop the picture to an ellipse
92. //Build Shapedrawable object and define shape as ellipse
94. shapedrawable = New Shapedrawable (new OvalShape ());
96. //Get brushes and set renderer
98. Shapedrawable.getpaint (). Setshader (Bitmapshader);
100. //Set display area
102. Shapedrawable.setbounds ( 20,bitmapwidth-140,bitmapheight);
104. //Draw shapedrawable
106. Shapedrawable.draw (canvas);
108. }
112. }

Android Color Rendering (quad) Bitmapshader bitmap rendering