Android Watermark a picture

Speaking of the watermark is actually very simple, is to draw on a picture of another picture or text

The implementation is as follows:

[Java]View Plaincopy

2. Package Com.tang.watermark;
8. Import android.app.Activity;
10. Import Android.graphics.Bitmap;
12. Import Android.graphics.BitmapFactory;
14. Import Android.graphics.Canvas;
16. Import Android.graphics.PixelFormat;
18. Import Android.graphics.Bitmap.Config;
20. Import android.graphics.drawable.BitmapDrawable;
22. Import android.graphics.drawable.Drawable;
24. Import Android.os.Bundle;
26. Import Android.view.View;
28. Import Android.view.View.OnClickListener;
30. Import Android.widget.Button;
32. Import Android.widget.ImageView;
36. Public class Mainactivity extends Activity {
38. ImageView ImageView;
40. Bitmap Mark;
42. @Override
44. protected void OnCreate (Bundle savedinstancestate) {
46. super.oncreate (savedinstancestate);
48. Setcontentview (R.layout.activity_main);
50. ImageView = (ImageView) Findviewbyid (R.ID.IMAGEVIEW1);
52. Imageview.setimageresource (R.drawable.heihei);
54. Mark = Bitmapfactory.decoderesource (Getresources (), r.drawable.ic_launcher);
60. Button button = (button) Findviewbyid (R.id.button1);
64. Button.setonclicklistener (new Onclicklistener () {
66. @Override
68. public void OnClick (View v) {
70. //TODO auto-generated method stub
72. Bitmap temp = watermark (Drawabletobitmap (imageview.getdrawable ()), Mark,100);
74. Imageview.setimagebitmap (temp);
76. }
78. });
80. }
82. /** 
84. * Convert Bitmap to Drawable
86. * @param bitmap
88. * @return
90. */
92. public static drawable bitmaptodrawable (Bitmap Bitmap)
94. {
96. bitmapdrawable bd = new bitmapdrawable (bitmap);
98. return BD;
100. }
104. /** 
106. * @param src
108. * @param BG
110. * @param color
112. * @return
114. */
116. public static Bitmap watermark (Bitmap src,bitmap mark,int x,int y)
118. {
120. int w = src.getwidth ();
122. int h = src.getheight ();
124. Bitmap newb = Bitmap.createbitmap (W, H, config.argb_8888);
126. Canvas CV = new canvas (NEWB);
128. Cv.drawbitmap (SRC, 0, 0, null);
130. Cv.drawbitmap (mark,x, y, null);
132. Cv.save (Canvas.all_save_flag); //Save
134. Cv.restore (); //Storage
136. return newb;
138. }
144. /** 
146. * Drawable converted to bitmap
148. * @param drawable
150. * @return
152. */
154. public static Bitmap Drawabletobitmap (drawable drawable) {
156. //Take drawable of the length of the width
158. int w = drawable.getintrinsicwidth ();
160. int h = drawable.getintrinsicheight ();
162. //Take drawable color format
164. Bitmap.config Config = drawable.getopacity ()! = Pixelformat.opaque? Bitmap.Config.ARGB_8888
166. : Bitmap.Config.RGB_565;
168. Bitmap Bitmap = Bitmap.createbitmap (w, H, config);
170. Canvas canvas = new canvas (bitmap);
172. Drawable.setbounds (0, 0, W, h);
174. Drawable.draw (canvas);
176. return bitmap;
178. }

Android Watermark a picture