Question

我从活动MainActivity中的片段转到活动SetExperimentActivity，如下所示：

Intent myIntent = new Intent(getActivity(), SetExperimentActivity.class);
myIntent.putExtra(SetExperimentActivity.KEY_RESERVATION_END, reservation.getEndAsDate());
getActivity().startActivityForResult(myIntent, 0);
getActivity().overridePendingTransition(android.R.anim.slide_in_left, android.R.anim.slide_out_right);

在MainActivity中，我有onActivityResult方法

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    this.intent = data;
}

在SetExperimentActivity中，我做了一些操作，并使用额外的parcelable重定向回MainActivity：

Intent myIntent = new Intent();
myIntent.putExtra(Constants.EXTRA_EQUIPMENT, equipment);
setResult(0, myIntent);
finish();

未调用onActivityResult

Answer 1

在这种情况下，您应该使用startActivityForResult，而不是startActivity！请参阅Getting a Result from an Activity上提供的官方文档。

Answer 2

在第一个活动中调用

startactivityforresult方法，然后在第二个活动中填写数据后我们可以使用setresult(RESULT_OK,data);然后在第一个活动中调用onactivityresult后输入代码：< / p>

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// Check which request we're responding to
if (requestCode == PICK_CONTACT_REQUEST) {
    // Make sure the request was successful
    if (resultCode == RESULT_OK) {
        // The user picked a contact.
        // The Intent's data Uri identifies which contact was selected.

        // Do something with the contact here (bigger example below)
    }
}
}

从活动返回后没有调用onActivityResult

2 个答案: