Custom View Imageviw

Create a new class to inherit ImageView

Package Com.exaple.myselfview;import Android.content.context;import Android.graphics.bitmap;import Android.graphics.bitmap.config;import Android.graphics.canvas;import Android.graphics.color;import Android.graphics.paint;import Android.graphics.porterduffxfermode;import Android.graphics.rect;import Android.graphics.drawable.bitmapdrawable;import Android.graphics.drawable.drawable;import Android.util.attributeset;import Android.view.view;import Android.widget.imageview;public class MyView extends ImageView {public MyView (context context, AttributeSet attrs, int defstyle) {Super (context, attrs, defstyle);//TODO auto- Generated constructor Stub}public MyView (context context) {super (context);//TODO auto-generated constructor stub} Public MyView (context context, AttributeSet Attrs) {Super (context, attrs);//TODO auto-generated constructor stub}@ overrideprotected void OnDraw (canvas canvas) {//TODO auto-generated method Stubdrawable drawable = Getdrawable (); if (draw able = = null) {return;} If(getwidth () = = 0 | | getheight () = = 0) {return;} Bitmap B = ((bitmapdrawable) drawable). Getbitmap (); if (null = = b) {return;} Bitmap Bitmap = B.copy (Bitmap.Config.ARGB_8888, true);///Get the picture of the width of the high int w = getwidth (), H = getheight ();//Through GETCROPPEDBITM AP function, return a circular picture bitmap Roundbitmap = Getcroppedbitmap (bitmap, w);//show Circleimageex on a custom Canvas.drawbitmap (roundbitmap , 0, 0, NULL);/* Super.ondraw (canvas); */}public static Bitmap Getcroppedbitmap (Bitmap bmp, int radius) {Bitmap p;//determines whether the size of the picture is equal to the incoming radius, if not, then//The picture is set to grow wide The radius of the picture if (Bmp.getwidth ()! = Radius | | bmp.getheight () = radius) p = bitmap.createscaledbitmap (BMP, radius, radius, Fals e) Elsep = bmp;//The last output of the picture information Bitmap output = Bitmap.createbitmap (P.getwidth (), P.getheight (), config.argb_8888); Canvas canvas = new canvas (output), final int color = 0xffa19774;final Paint paint = new paint (); final rect rect = new rect (0, 0, p.getwidth (), P.getheight ());//brush with anti-aliasing flag, image smoother Paint.setantialias (true);//If the key is set to True, The image will filter out the optimized operation of the bitmap image in the animation and speed up the display of PAInt.setfilterbitmap (TRUE);//Anti-jitter Paint.setdither (TRUE);//Transparent Color Canvas.drawargb (0, 0, 0, 0);//Brush Color Paint.setcolor ( Color.parsecolor ("#BAB399"));//Draw a circular canvas.drawcircle (P.getwidth ()/2, P.getheight ()/2,p.getwidth ()/2 + 0.1f, pain t);//Set the pattern at the intersection of two pictures, which is to cover the picture information of the circle on the canvas Paint.setxfermode (New Porterduffxfermode (android.graphics.PorterDuff.Mode.SRC_ in)); Canvas.drawbitmap (P, rect, rect, paint); return output;}}

Be sure to SRC instead of background in XML

Custom View Imageviw