從主代碼是:onActivityResult拋出故障提供結果ResultInfo
public void ChangeFlag(View view)
{
Intent dialogIntent = new Intent(getBaseContext(), dialogPickFlag.class);
dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivityForResult(dialogIntent, 1);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Toast.makeText(this, data.getStringExtra("str") , 1500).show();
}
,這是從活動,這是被稱爲:
public void endResult(String s)
{
Intent intent = new Intent();
intent.putExtra("str", s);
setResult(RESULT_OK,intent);
finish();
}
但奇怪的是它崩潰
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=0, data=null} to activity {Constructor.rob.com/Constructor.rob.com.constr}: java.lang.NullPointerException
顯然只有請求代碼已經通過,但爲什麼不是響應和數據呢?
任何想法?謝謝!
編輯: 更改爲toast toast Toast.makeText(this,「aaa」,1500).show();「並且注意到它會過早地燃燒,然後創建新的活動,而不是完成時!