仅显示单次消息

Question

我希望单次显示不成功的消息，但每次都打印..

for (String[] s : array) {
    if (s[0].equals(edtUsername.getText().toString()) && s[1].equals(edtPassword.getText().toString())) {

        Toast.makeText(getApplicationContext(), "Success", Toast.LENGTH_LONG).show();
        return;

    } else { 

        Toast.makeText(getApplicationContext(), "UnSuccess", Toast.LENGTH_LONG).show();

    }
}

Answer 1

如果您只想查看UnSuccess吐司留言一次，则必须将其放在for-loof之外，如下所示...

for (String[] s : array) {

    if (s[0].equals(edtUsername.getText().toString())
                                    && s[1].equals(edtPassword.getText().toString())) {

        Toast.makeText(getApplicationContext(), "Success",
                                        Toast.LENGTH_LONG).show();
        return;

    }
}

Toast.makeText(getApplicationContext(), "UnSuccess",
                                        Toast.LENGTH_LONG).show();