Android 图片添圆角以及时间处理工具类

给图片加上圆角效果好看多了。



加圆角，Drawable，Bitmap,BitmapDrawable,字节数组之间的相互转换。

Java代码 ?

1. public?class?ImageUtil?{ ??
2. ??
3. ????public?static?InputStream?getRequest(String?path)?throws?Exception?{ ??
4. ????????URL?url?=?new?URL(path); ??
5. ????????HttpURLConnection?conn?=?(HttpURLConnection)?url.openConnection(); ??
6. ????????conn.setRequestMethod("GET"); ??
7. ????????conn.setConnectTimeout(5000); ??
8. ????????if?(conn.getResponseCode()?==?200){ ??
9. ????????????return?conn.getInputStream(); ??
10. ????????} ??
11. ????????return?null; ??
12. ????} ??
13. ??
14. ????public?static?byte[]?readInputStream(InputStream?inStream)?throws?Exception?{ ??
15. ????????ByteArrayOutputStream?outSteam?=?new?ByteArrayOutputStream(); ??
16. ????????byte[]?buffer?=?new?byte[4096]; ??
17. ????????int?len?=?0; ??
18. ????????while?((len?=?inStream.read(buffer))?!=?-1)?{ ??
19. ????????????outSteam.write(buffer,?0,?len); ??
20. ????????} ??
21. ????????outSteam.close(); ??
22. ????????inStream.close(); ??
23. ????????return?outSteam.toByteArray(); ??
24. ????} ??
25. ???? ??
26. ????public?static?Drawable?loadImageFromUrl(String?url){ ??
27. ????????URL?m; ??
28. ????????InputStream?i?=?null; ??
29. ????????try?{ ??
30. ????????????m?=?new?URL(url); ??
31. ????????????i?=?(InputStream)?m.getContent(); ??
32. ????????}?catch?(MalformedURLException?e1)?{ ??
33. ????????????e1.printStackTrace(); ??
34. ????????}?catch?(IOException?e)?{ ??
35. ????????????e.printStackTrace(); ??
36. ????????} ??
37. ????????Drawable?d?=?Drawable.createFromStream(i,?"src"); ??
38. ????????return?d; ??
39. ????} ??
40. ???? ??
41. ????public?static?Drawable?getDrawableFromUrl(String?url)?throws?Exception{ ??
42. ?????????return?Drawable.createFromStream(getRequest(url),null); ??
43. ????} ??
44. ???? ??
45. ????public?static?Bitmap?getBitmapFromUrl(String?url)?throws?Exception{ ??
46. ????????byte[]?bytes?=?getBytesFromUrl(url); ??
47. ????????return?byteToBitmap(bytes); ??
48. ????} ??
49. ???? ??
50. ????public?static?Bitmap?getRoundBitmapFromUrl(String?url,int?pixels)?throws?Exception{ ??
51. ????????byte[]?bytes?=?getBytesFromUrl(url); ??
52. ????????Bitmap?bitmap?=?byteToBitmap(bytes); ??
53. ????????return?toRoundCorner(bitmap,?pixels); ??
54. ????}? ??
55. ???? ??
56. ????public?static?Drawable?geRoundDrawableFromUrl(String?url,int?pixels)?throws?Exception{ ??
57. ????????byte[]?bytes?=?getBytesFromUrl(url); ??
58. ????????BitmapDrawable?bitmapDrawable?=?(BitmapDrawable)byteToDrawable(bytes); ??
59. ????????return?toRoundCorner(bitmapDrawable,?pixels); ??
60. ????}? ??
61. ???? ??
62. ????public?static?byte[]?getBytesFromUrl(String?url)?throws?Exception{ ??
63. ?????????return?readInputStream(getRequest(url)); ??
64. ????} ??
65. ???? ??
66. ????public?static?Bitmap?byteToBitmap(byte[]?byteArray){ ??
67. ????????if(byteArray.length!=0){? ??
68. ????????????return?BitmapFactory.decodeByteArray(byteArray,?0,?byteArray.length);? ??
69. ????????}? ??
70. ????????else?{? ??
71. ????????????return?null;? ??
72. ????????}?? ??
73. ????} ??
74. ???? ??
75. ????public?static?Drawable?byteToDrawable(byte[]?byteArray){ ??
76. ????????ByteArrayInputStream?ins?=?new?ByteArrayInputStream(byteArray); ??
77. ????????return?Drawable.createFromStream(ins,?null); ??
78. ????} ??
79. ???? ??
80. ????public?static?byte[]?Bitmap2Bytes(Bitmap?bm){? ??
81. ????????ByteArrayOutputStream?baos?=?new?ByteArrayOutputStream(); ??
82. ????????bm.compress(Bitmap.CompressFormat.PNG,?100,?baos); ??
83. ????????return?baos.toByteArray(); ??
84. ????} ??
85. ???? ??
86. ????public?static?Bitmap?drawableToBitmap(Drawable?drawable)?{ ??
87. ??
88. ????????Bitmap?bitmap?=?Bitmap ??
89. ????????????????.createBitmap( ??
90. ????????????????????????drawable.getIntrinsicWidth(), ??
91. ????????????????????????drawable.getIntrinsicHeight(), ??
92. ????????????????????????drawable.getOpacity()?!=?PixelFormat.OPAQUE???Bitmap.Config.ARGB_8888 ??
93. ????????????????????????????????:?Bitmap.Config.RGB_565); ??
94. ????????Canvas?canvas?=?new?Canvas(bitmap); ??
95. ????????drawable.setBounds(0,?0,?drawable.getIntrinsicWidth(), ??
96. ????????????????drawable.getIntrinsicHeight()); ??
97. ????????drawable.draw(canvas); ??
98. ????????return?bitmap; ??
99. ????} ??
100. ???? ??
101. ????????/** ?
102. ??????????*?图片去色,返回灰度图片 ?
103. [email protected] ?
104. [email protected] ?
105. ?????????*/??
106. ????????public?static?Bitmap?toGrayscale(Bitmap?bmpOriginal)?{ ??
107. ????????????int?width,?height; ??
108. ????????????height?=?bmpOriginal.getHeight(); ??
109. ????????????width?=?bmpOriginal.getWidth();???? ??
110. ???? ??
111. ????????????Bitmap?bmpGrayscale?=?Bitmap.createBitmap(width,?height,?Bitmap.Config.RGB_565); ??
112. ????????????Canvas?c?=?new?Canvas(bmpGrayscale); ??
113. ????????????Paint?paint?=?new?Paint(); ??
114. ????????????ColorMatrix?cm?=?new?ColorMatrix(); ??
115. ????????????cm.setSaturation(0); ??
116. ????????????ColorMatrixColorFilter?f?=?new?ColorMatrixColorFilter(cm); ??
117. ????????????paint.setColorFilter(f); ??
118. ????????????c.drawBitmap(bmpOriginal,?0,?0,?paint); ??
119. ????????????return?bmpGrayscale; ??
120. ????????} ??
121. ???????? ??
122. ???????? ??
123. ????????/** ?
124. ?????????*?去色同时加圆角 ?
125. [email protected] ?
126. [email protected] ?
127. [email protected] ?
128. ?????????*/??
129. ????????public?static?Bitmap?toGrayscale(Bitmap?bmpOriginal,?int?pixels)?{ ??
130. ????????????return?toRoundCorner(toGrayscale(bmpOriginal),?pixels); ??
131. ????????} ??
132. ???????? ??
133. ????????/** ?
134. ?????????*?把图片变成圆角 ?
135. [email protected] ?
136. [email protected] ?
137. [email protected] ?
138. ?????????*/??
139. ????????public?static?Bitmap?toRoundCorner(Bitmap?bitmap,?int?pixels)?{ ??
140. ???? ??
141. ????????????Bitmap?output?=?Bitmap.createBitmap(bitmap.getWidth(),?bitmap.getHeight(),?Config.ARGB_8888); ??
142. ????????????Canvas?canvas?=?new?Canvas(output); ??
143. ???? ??
144. ????????????final?int?color?=?0xff424242; ??
145. ????????????final?Paint?paint?=?new?Paint(); ??
146. ????????????final?Rect?rect?=?new?Rect(0,?0,?bitmap.getWidth(),?bitmap.getHeight()); ??
147. ????????????final?RectF?rectF?=?new?RectF(rect); ??
148. ????????????final?float?roundPx?=?pixels; ??
149. ???? ??
150. ????????????paint.setAntiAlias(true); ??
151. ????????????canvas.drawARGB(0,?0,?0,?0); ??
152. ????????????paint.setColor(color); ??
153. ????????????canvas.drawRoundRect(rectF,?roundPx,?roundPx,?paint); ??
154. ???? ??
155. ????????????paint.setXfermode(new?PorterDuffXfermode(Mode.SRC_IN)); ??
156. ????????????canvas.drawBitmap(bitmap,?rect,?rect,?paint); ??
157. ???? ??
158. ????????????return?output; ??
159. ????????} ??
160. ???? ??
161. ???????? ??
162. ???????/** ?
163. ?????????*?使圆角功能支持BitampDrawable ?
164. [email protected] ?
165. [email protected] ?
166. [email protected] ?
167. ?????????*/??
168. ????????public?static?BitmapDrawable?toRoundCorner(BitmapDrawable?bitmapDrawable,?int?pixels)?{ ??
169. ????????????Bitmap?bitmap?=?bitmapDrawable.getBitmap(); ??
170. ????????????bitmapDrawable?=?new?BitmapDrawable(toRoundCorner(bitmap,?pixels)); ??
171. ????????????return?bitmapDrawable; ??
172. ????????} ??
173. ???? ??
174. }??

public class ImageUtil {	public static InputStream getRequest(String path) throws Exception {		URL url = new URL(path);		HttpURLConnection conn = (HttpURLConnection) url.openConnection();		conn.setRequestMethod("GET");		conn.setConnectTimeout(5000);		if (conn.getResponseCode() == 200){			return conn.getInputStream();		}		return null;	}	public static byte[] readInputStream(InputStream inStream) throws Exception {		ByteArrayOutputStream outSteam = new ByteArrayOutputStream();		byte[] buffer = new byte[4096];		int len = 0;		while ((len = inStream.read(buffer)) != -1) {			outSteam.write(buffer, 0, len);		}		outSteam.close();		inStream.close();		return outSteam.toByteArray();	}		public static Drawable loadImageFromUrl(String url){        URL m;        InputStream i = null;        try {            m = new URL(url);            i = (InputStream) m.getContent();        } catch (MalformedURLException e1) {            e1.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        Drawable d = Drawable.createFromStream(i, "src");        return d;    }		public static Drawable getDrawableFromUrl(String url) throws Exception{		 return Drawable.createFromStream(getRequest(url),null);	}		public static Bitmap getBitmapFromUrl(String url) throws Exception{		byte[] bytes = getBytesFromUrl(url);		return byteToBitmap(bytes);	}		public static Bitmap getRoundBitmapFromUrl(String url,int pixels) throws Exception{		byte[] bytes = getBytesFromUrl(url);		Bitmap bitmap = byteToBitmap(bytes);		return toRoundCorner(bitmap, pixels);	} 		public static Drawable geRoundDrawableFromUrl(String url,int pixels) throws Exception{		byte[] bytes = getBytesFromUrl(url);		BitmapDrawable bitmapDrawable = (BitmapDrawable)byteToDrawable(bytes);		return toRoundCorner(bitmapDrawable, pixels);	} 		public static byte[] getBytesFromUrl(String url) throws Exception{		 return readInputStream(getRequest(url));	}		public static Bitmap byteToBitmap(byte[] byteArray){		if(byteArray.length!=0){             return BitmapFactory.decodeByteArray(byteArray, 0, byteArray.length);         }         else {             return null;         }  	}		public static Drawable byteToDrawable(byte[] byteArray){		ByteArrayInputStream ins = new ByteArrayInputStream(byteArray);		return Drawable.createFromStream(ins, null);	}		public static byte[] Bitmap2Bytes(Bitmap bm){ 		ByteArrayOutputStream baos = new ByteArrayOutputStream();		bm.compress(Bitmap.CompressFormat.PNG, 100, baos);		return baos.toByteArray();	}		public static Bitmap drawableToBitmap(Drawable drawable) {		Bitmap bitmap = Bitmap				.createBitmap(						drawable.getIntrinsicWidth(),						drawable.getIntrinsicHeight(),						drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888								: Bitmap.Config.RGB_565);		Canvas canvas = new Canvas(bitmap);		drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),				drawable.getIntrinsicHeight());		drawable.draw(canvas);		return bitmap;	}		 	/**	      * 图片去色,返回灰度图片	      * @param bmpOriginal 传入的图片	     * @return 去色后的图片	     */	    public static Bitmap toGrayscale(Bitmap bmpOriginal) {	        int width, height;	        height = bmpOriginal.getHeight();	        width = bmpOriginal.getWidth();    		        Bitmap bmpGrayscale = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);	        Canvas c = new Canvas(bmpGrayscale);	        Paint paint = new Paint();	        ColorMatrix cm = new ColorMatrix();	        cm.setSaturation(0);	        ColorMatrixColorFilter f = new ColorMatrixColorFilter(cm);	        paint.setColorFilter(f);	        c.drawBitmap(bmpOriginal, 0, 0, paint);	        return bmpGrayscale;	    }	    	    	    /**	     * 去色同时加圆角	     * @param bmpOriginal 原图	     * @param pixels 圆角弧度	     * @return 修改后的图片	     */	    public static Bitmap toGrayscale(Bitmap bmpOriginal, int pixels) {	        return toRoundCorner(toGrayscale(bmpOriginal), pixels);	    }	    	    /**	     * 把图片变成圆角	     * @param bitmap 需要修改的图片	     * @param pixels 圆角的弧度	     * @return 圆角图片	     */	    public static Bitmap toRoundCorner(Bitmap bitmap, int pixels) {		        Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);	        Canvas canvas = new Canvas(output);		        final int color = 0xff424242;	        final Paint paint = new Paint();	        final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());	        final RectF rectF = new RectF(rect);	        final float roundPx = pixels;		        paint.setAntiAlias(true);	        canvas.drawARGB(0, 0, 0, 0);	        paint.setColor(color);	        canvas.drawRoundRect(rectF, roundPx, roundPx, paint);		        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));	        canvas.drawBitmap(bitmap, rect, rect, paint);		        return output;	    }		    	   /**	     * 使圆角功能支持BitampDrawable	     * @param bitmapDrawable 	     * @param pixels 	     * @return	     */	    public static BitmapDrawable toRoundCorner(BitmapDrawable bitmapDrawable, int pixels) {	        Bitmap bitmap = bitmapDrawable.getBitmap();	        bitmapDrawable = new BitmapDrawable(toRoundCorner(bitmap, pixels));	        return bitmapDrawable;	    }	}

时间类:

Java代码 ?

1. public?class?TimeUtil?{ ??
2. ???? ??
3. ????public?static?String?converTime(long?timestamp){ ??
4. ????????long?currentSeconds?=?System.currentTimeMillis()/1000; ??
5. ????????long?timeGap?=?currentSeconds-timestamp;//与现在时间相差秒数 ??
6. ????????String?timeStr?=?null; ??
7. ????????if(timeGap>24*60*60){//1天以上 ??
8. ????????????timeStr?=?timeGap/(24*60*60)+"天前"; ??
9. ????????}else?if(timeGap>60*60){//1小时-24小时 ??
10. ????????????timeStr?=?timeGap/(60*60)+"小时前"; ??
11. ????????}else?if(timeGap>60){//1分钟-59分钟 ??
12. ????????????timeStr?=?timeGap/60+"分钟前"; ??
13. ????????}else{//1秒钟-59秒钟 ??
14. ????????????timeStr?=?"刚刚"; ??
15. ????????} ??
16. ????????return?timeStr; ??
17. ????} ??
18. ???? ??
19. ????public?static?String?getStandardTime(long?timestamp){ ??
20. ????????SimpleDateFormat?sdf?=?new?SimpleDateFormat("MM月dd日?HH:mm"); ??
21. ????????Date?date?=?new?Date(timestamp*1000); ??
22. ????????sdf.format(date); ??
23. ????????return?sdf.format(date); ??
24. ????} ??
25. }??