从片段到活动的EditText中获取数据

<EditText
    android:id="@+id/editText"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="请输入数据" />

EditText editText = getView().findViewById(R.id.editText);

String data = editText.getText().toString();

// 在片段中获取活动的实例
Activity activity = getActivity();

// 将数据通过Intent传递给活动
Intent intent = new Intent();
intent.putExtra("data", data);
activity.setResult(Activity.RESULT_OK, intent);
activity.finish();

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

    if (requestCode == REQUEST_CODE && resultCode == Activity.RESULT_OK) {
        String data = data.getStringExtra("data");
        // 对获取到的数据进行处理
    }
}