Displaying integer on toast

问题

Im trying to display a toast message with integer inside it This is how i tried to do it:

 Toast.makeText(this,bignum,Toast.LENGTH_LONG).show();

But it keeps crash my app. Thanks for help!

回答1:

Toast.makeText either takes a CharSequence or an int as its second argument.

However, the int represents a resource ID (such as R.string.hello_world).

The application crashes probably because no resource is found with that ID, since it's not an ID to start with, but an arbitrary integer.

In your case, use Toast.makeText(this,String.valueOf(bignum),Toast.LENGTH_LONG).show();.

回答2:

you need a String

Toast.makeText(this, String.valueOf(bignum),Toast.LENGTH_LONG).show();

otherwise android will try to look it up for a String with id bignum, in your strings.xml file

回答3:

Try this to "cast" bignum to string:

Toast.makeText(this,"" + bignum,Toast.LENGTH_LONG).show();

回答4:

You can do this:

Toast.makeText(getBaseContext(), "" + bignum, Toast.LENGTH_LONG).show();

来源：https://stackoverflow.com/questions/28152958/displaying-integer-on-toast