Android在TextView中创建可单击的文本部分

Question

我尝试使用此代码对字符串的一部分进行简单的点击，例如：

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        LinearLayout salam = (LinearLayout) findViewById(R.id.salam);
        TextView     textView    = new TextView(this);

        textView.setHighlightColor(Color.RED);

        String text = "Android is a Software stack";

        SpannableString ss = new SpannableString(text);
        ClickableSpan clickableSpan = new ClickableSpan() {
            @Override
            public void onClick(View textView) {
                Toast.makeText(MainActivity.this, "asdasdasd", Toast.LENGTH_SHORT);
            }

            @Override
            public void updateDrawState(TextPaint ds) {
                super.updateDrawState(ds);
                ds.setUnderlineText(false);
            }
        };
        ss.setSpan(clickableSpan, 0, text.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

        textView.setText(ss);

        salam.addView(textView);
    }

但它不起作用，我无法点击文字来显示简单的Toast