<分区>
我使用下面的代码在android中制作圆形头像
http://www.androidhub4you.com/2014/10/android-custom-shape-imageview-rounded.html
但是在我的主要 Activity 中我使用了 ListFragment 而不是 Activity
imageViewRound = ImageView)parentView.findViewById(R.id.imageView_round);
Bitmap icon = BitmapFactory.decodeResource(getResources(),R.drawable.noimage_square);
imageViewRound.setImageBitmap(icon);
我遇到了这个错误
05-15 12:21:27.359: E/AndroidRuntime(25107): Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setImageBitmap(android.graphics.Bitmap)' on a null object reference