getActivity().getPackageManager() 显示 null？

Question

I have tried removing the if condition but didn't work, also it's inside the fragment so no context issue.

button = view.findViewById(R.id.button);
url = view.findViewById(R.id.Url);
button.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        String s= url.getText().toString();
        Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse(s));

        if (intent.resolveActivity(getActivity().getPackageManager()) != null) {
            startActivity(intent);
        }
        else{
            url.setText("Error");
        }
    }
});

Answer 1

It's not getActivity().getPackageManager() that is null .
It's intent.resolveActivity that returns null
And this simply means that there doesn't exist an activity that can handle the Uri that you provided. Be sure to write your uri correct