onActivityResult从Adapter传递Intent时,Intent为null

首先,您需要使用REQUEST_CODE启动Activity :

// Here we set a constant for the code.
private final int REQUEST_CODE = 100;

Intent i = new Intent(activity, EditInfoActivity.class);
i.putExtra("id", list.get(position).getID());
activity.startActivityForResult(i, REQUEST_CODE);

然后,你需要发送RESULT_OK整理EditInfoActivity时:

Intent i = getIntent();
i.putExtra("isDataChange", isDataChange);
setResult(RESULT_OK, i);
finish();

然后使用以下方法处理第一个活动的结果:

Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  // REQUEST_CODE is defined as 100
  if (resultCode == RESULT_OK && requestCode == 100) {
     // do process
  }
}