I am trying to use two-way data binding for editing user data. I am able to show the POJO contents in the view but the changes made by user are not able to capture back with POJO.
public class MainActivity extends AppCompatActivity {
ActivityMainBinding binding;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
binding = DataBindingUtil.setContentView(this, R.layout.activity_main);
User user = new User();
user.setFirstName("first a");
user.setLastName("last b");
binding.setUser(user);
}
public void Click(View v){
//ActivityMainBinding binding = ActivityMainBinding.inflate(getLayoutInflater());
User user = binding.getUser();
Toast.makeText(this,user.getFirstName(),Toast.LENGTH_LONG).show();
}
}
I have tried using a global variable for user, binding too. But when I click the button, it always shows the "first a". The definition for User.java is:
public class User extends BaseObservable{
private String firstName;
private String lastName;
@Bindable
public String getFirstName(){ return firstName;}
public void setFirstName(String first) {
firstName = first;
notifyPropertyChanged(com.example.ks.myapplication.BR.firstName);
}
@Bindable
public String getLastName(){ return lastName;}
public void setLastName(String last) {
lastName = last;
notifyPropertyChanged(com.example.ks.myapplication.BR.lastName);
}
}
and the XML: Here, I am trying to display the changes immediately in text views and on button click also.
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">
<data>
<variable name="user" type="com.example.ks.myapplication.User"/>
</data>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/editText2"
android:text="@{user.firstName}" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/editText"
android:text="@{user.lastName}" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:id="@+id/button"
android:layout_gravity="center_horizontal"
android:onClick="Click" />
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@{user.firstName}"/>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@{user.lastName}"/>
</LinearLayout>
</layout>
Is there anything I am missing?
