android向下一个页面传参

页面1

Intent intent = new Intent(MainActivity.this,TwoActivity.class);
intent.putExtra("showdata","今天天气很好");
startActivity(intent);

页面2

@Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.two_activity);
        Intent intent = getIntent();
          //获取参数
        String showdata = intent.getStringExtra("showdata");
    }