如何在android中制作完整的圆形图像视图 [英] how to make full circular image view in android

问题描述

Possible Duplicate:
How to make an image fit into a circular frame in android

I want a 360 degree circular shape Image View, I found related solutions on stackoverflow, but they were all yielding rounded corners in image view. But i want full circular image view.

For rounded corners image view links are:

• Rounded corners in imageView
• How to make an ImageView with rounded corners?

Any thoughts.

解决方案

Get the Bitmap:

Bitmap bitmap = getthebitmapyouwanttoshowinacirclefromsomewhere;
Bitmap circleBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);

Use a shader:

BitmapShader shader = new BitmapShader (bitmap,  TileMode.CLAMP, TileMode.CLAMP);
Paint paint = new Paint();
        paint.setShader(shader);

Draw the canvas;

Canvas c = new Canvas(circleBitmap);
c.drawCircle(bitmap.getWidth()/2, bitmap.getHeight()/2, bitmap.getWidth()/2, paint);

Set the image:

myImageView.setImageBitmap(circleBitmap);

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