activity data 공유 시 에러

Question

// A activity
Button calBtn = (Button) findViewById(R.id.market_SrCalBtn);
        calBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MarketActivity.this, DaySelectActivity.class);
                startActivity(intent);
                
                intent = getIntent();
                year = intent.getIntExtra("YEAR",2015);
                month = intent.getIntExtra("MONTH",1);
                day = intent.getIntExtra("DAY",1);

                SelectDayView = (TextView)findViewById(R.id.SelectDayView);
                SelectDayView.setText(year + "년 " + month + "월 " + day +"일");

// B activity
calendar.setOnDateChangeListener(new CalendarView.OnDateChangeListener() {
            @Override
            public void onSelectedDayChange(CalendarView view, int year, int month, int day) {
                Toast.makeText(DaySelectActivity.this, year + "/" + month + "/" + day, Toast.LENGTH_SHORT).show();
                Intent intent = new Intent(DaySelectActivity.this, MarketActivity.class);
                intent.putExtra("YEAR", year);
                intent.putExtra("MONTH", month);
                intent.putExtra("day", day);
                startActivity(intent);
                finish();
            }
        });

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문제는 이렇습니다.

A activity에서 B activity로 전환해서 B의 캘린더뷰에서 날짜를 선택해 A activity에 있는 변수에 선택한 날짜의 year, month, day 값을 넣어주려고 합니다.

왜 에러가 발생할까요...

 

 

 

Comments

코드가 불리는 순서데로 다시 정리해서 올려줘봐요...

Answer 1

다 잘못됬습니다. 

 

A액티비티

 

Button calBtn = (Button) findViewById(R.id.market_SrCalBtn);

        calBtn.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                Intent intent = new Intent(MarketActivity.this, DaySelectActivity.class);

                startActivityForResult(intent, 0);

            }

});

 

 

 

//A액티비티에서 결과 받는 부분

 

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent intent) {

  if(requestCode == 0){

       if(resultCode == Activity.RESULT_OK){

               year = intent.getIntExtra("YEAR",2015);

                month = intent.getIntExtra("MONTH",1);

                day = intent.getIntExtra("DAY",1);

 

                SelectDayView = (TextView)findViewById(R.id.SelectDayView);

                SelectDayView.setText(year + "년 " + month + "월 " + day +"일");

        }

  }

 

B액티비티 부분

  Intent intent = new Intent();

  intent.putExtra("YEAR", year);

  intent.putExtra("MONTH", month);

  intent.putExtra("day", day);

  this.setResult(Activity.RESULT_OK, intent);

  finish();

 

 

 

Comments

친절한답변감사합니다.!!!열심히해야겠어요 ㅎㅎ

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this.setResult(Activity.RESULT_OK, intent); 에러가 발생합니다..

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BActivity명.this.setResult(Activity.RESULT_OK, intent);

이렇게 해보세요.