![AlertDialog使用时遇到问题 AlertDialog使用时遇到问题](https://image.shishitao.com:8440/aHR0cHM6Ly9ia3FzaW1nLmlrYWZhbi5jb20vdXBsb2FkL2NoYXRncHQtcy5wbmc%2FIQ%3D%3D.png?!?w=700&webp=1)
1、其内de子控件高宽度为0?
AlertDialog.Builder builder = new AlertDialog.Builder(StoryActivity.this);
View view = LayoutInflater.from(StoryActivity.this).inflate(R.layout.dialog_qr_display, null, false);
ImageView iv = (ImageView)view.findViewById(R.id.iv);
AlertDialog dialog = builder.setView(view).setTitle("分享").create();
dialog.show();
iv.getWidth();//为0
iv.getHeight();//为0
通过下列代码解决
ViewGroup.LayoutParams pm = ivQR.getLayoutParams();
pm.width;//不为0
pm.height;//不为0