java - 通过 Intent 传递数据

Question

我试图通过从 Activity 1 到 Activity 2 的 Intent 从 CalendarView 传递选定的日期。 Activity no2 打开没有任何问题，但未显示所选日期。

这是 Activity no1 的代码:

         String syear = Integer.toString(year);
         String smonth = Integer.toString(month);
         String sday= Integer.toString(day);

         Intent myIntent = new Intent(CalendarActivity.this, CalendarDate.class);
         Bundle extras = new Bundle();
         myIntent.putExtra(syear, "currentyear");
         myIntent.putExtra(smonth,"currentmonth");
         myIntent.putExtra(sday,"currentday");
         myIntent.putExtras(extras);
         CalendarActivity.this.startActivity(myIntent);

这是 Activity no2 的代码:

Bundle extras = getIntent().getExtras();

    String dyear = extras.getString("currentyear");
    String dmonth = extras.getString("currentmonth");
    String dday = extras.getString("currentday");


    TextView textView = new TextView(this);
    textView.setTextSize(40);
    textView.setText(dday);
    textView.setText(dmonth);
    textView.setText(dyear);

    setContentView(textView);

我做错了什么？

Answer 1

应该是

    myIntent.putExtra("currentyear",syear);
    myIntent.putExtra("currentmonth",smonth);
    myIntent.putExtra("currentday",sday);

还可以使用附加

    textView.append(dday);
    textView.append(dmonth);
    textView.append(dyear);