android - 如何将对象从一个 fragment 传递到另一个 fragment ？

Question

MoneyTransferFragment fragment 代码......

MoneyTransferFragment moneyTransferFragment = new MoneyTransferFragment();
                    Bundle b = new Bundle();
                    b.putSerializable("UserValidateObject",userValidate);
                    b.putSerializable("BeneficiaryObject",beneficiaryDetails);
                    moneyTransferFragment.setArguments(b);

我想检索该对象的第二个 fragment 的代码......

Bundle b = getArguments();
    userValidate =(UserValidate) b.getSerializable("UserValidateObject");
    Log.i("getuserValidate",userValidate.toString());

在日志中显示错误..........

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference

Answer 1

更改代码 来自:

Bundle b = getArguments();
userValidate =(UserValidate) b.getSerializable("UserValidateObject");
Log.i("getuserValidate",userValidate.toString());

收件人:

userValidate=(UserValidate)getArguments().getSerializable("UserValidateObject");
Log.i("getuserValidate",userValidate.toString());

Activity 作品:

    (YourObject)getIntent().getSerializableExtra("keyname");

fragment 作品:

 (YourObject)getArguments().getSerializable("keyname");