android - 如何从菜单切换到新 Activity ？

Question

我有一个菜单，我想在用户点击菜单项时打开一个新的 Activity:

@Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle item selection
        switch (item.getItemId()) {
        case R.id.add_symbol:
           System.out.println("ADD SYMBOL CLICKED!");
           Intent myIntent = new Intent(this.getContext(), AddStocksActivity.class);
           startActivityForResult(myIntent, 0);
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

我不确定如何正确创建我的 Intent

编译器错误:

The method getContext() is undefined for the type Main

Answer 1

由于 Main 扩展了 Activity(扩展了 Context)，您可以:

Intent myIntent = new Intent(this, AddStocksActivity.class)