Uri发起图片和一个网址

1.ImageView.setImageUri(Uri.fromFile(new File("/sdcard/cats.jpg")));?
ImageView.setImageUri(Uri.parse(new File("/sdcard/cats.jpg").toString()));?

2.String url = "http://almondmendoza.com/android-applications/";?
Intent i = new Intent(Intent.ACTION_VIEW);?
i.setData(Uri.parse(url));?
startActivity(i);?