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//最新第三方圓形頭像：

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https://github.com/hdodenhof/CircleImageView?

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https://github.com/MostafaGazar/CustomShapeImageView ??

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?一段代碼,可以設置圓形頭像.

? ? 返回一個Bitmap對象.

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? ==> 該列子是從網絡上獲取一張圖片。然后展示在ImageView的。

1：首先要確保網絡權限

<!-- 訪問網絡權限 --><uses-permission android:name="android.permission.INTERNET" />

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以下是關鍵代碼：

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private InputStream inputStream;
Bitmap output;

new Thread(new Runnable() {URL url;@Overridepublic void run() {// TODO Auto-generated method stubtry {url = new URL("http://99touxiang.com/public/upload/rihan/15/13-042315_940.jpg");inputStream = url.openStream();// 將字節流轉換為Bitmap,使用BitmapFactory工廠類進行轉換Bitmap bitmap = BitmapFactory.decodeStream(inputStream);output = getRoundedCornerBitmap(bitmap);header_image.post(new Runnable() {@Overridepublic void run() {// TODO Auto-generated method stub// 更新界面 header_image.setImageBitmap(output);}});} catch (MalformedURLException e) {// TODO Auto-generated catch block e.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch block e.printStackTrace();}}}).start();

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圓形頭像代碼：

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/* 圓形頭像 2 * 3 * @param bitmap 4 * @param ratio 5 * 按照截取比例來獲取圓形圖片 6 * @return 7 */ 8 public Bitmap getRoundedCornerBitmap(Bitmap bitmap) { 9 if (bitmap == null) { 10 bitmap = BitmapFactory.decodeStream(inputStream); 11 } 12 Bitmap outBitmap = Bitmap.createBitmap(bitmap.getWidth(), 13 bitmap.getHeight(), Config.ARGB_8888);//Bitmap.Config.ARGB_4444比Bitmap.Config.ARGB_8888更省內存 14 Canvas canvas = new Canvas(outBitmap); 15 final int color = 0xff424242; 16 final Paint paint = new Paint(); 17 final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); 18 final RectF rectF = new RectF(rect); 19 final float roundPX = bitmap.getWidth() / 2 < bitmap.getHeight() / 2 ? bitmap 20 .getWidth() : bitmap.getHeight(); 21 paint.setAntiAlias(true); 22 canvas.drawARGB(0, 0, 0, 0); 23 paint.setColor(color); 24 canvas.drawRoundRect(rectF, roundPX, roundPX, paint); 25 paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN)); 26 canvas.drawBitmap(bitmap, rect, rect, paint); 27 return outBitmap; 28 } 29

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? 額.復制粘貼試試吧.

轉載于:https://www.cnblogs.com/SomnusLove/p/3867417.html

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