本文实例讲述了Android生成带圆角的Bitmap图片。分享给大家供大家参考。具体如下：
有时候我们在开发Android应用时，会遇到圆角图片的问题，那么，我们如何在Android中用代码来生成圆角Bitmap图片呢？下面这段代码也许能够帮到你。
该方法主要用到了drawRoundRect来画圆角矩形，然后通过drawBitmap来画图片。
//生成圆角图片
public static Bitmap GetRoundedCornerBitmap(Bitmap bitmap) {
try {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(),
bitmap.getHeight());
final RectF rectF = new RectF(new Rect(0, 0, bitmap.getWidth(),
bitmap.getHeight()));
final float roundPx = 14;
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(Color.BLACK);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
final Rect src = new Rect(0, 0, bitmap.getWidth(),
bitmap.getHeight());
canvas.drawBitmap(bitmap, src, rect, paint);
return output;
} catch (Exception e) {
return bitmap;
}
}
希望本文所述对大家的Android程序设计有所帮助。
