Dynamically add new View through data binding

This is not best practice to add a view dynamic time through data binding, but if we want to add a view more time in more places then we can use to add view through Data Binding.

Create a model class for generating View.

public class CreateDynomicTextView {
    private  Context mContext;
    private TextView textView;
    public CreateDynomicTextView(){}
   public CreateDynomicTextView(Context context){
        mContext = context;
    }
    public void setTextView(){
        textView = new TextView(mContext);
    }
    public TextView getTextView(){
        
        textView = new TextView(mContext);
        textView.setText("hii added");
        return textView;
    }

}

public class CreateDynomicTextView {

private Context mContext;

private TextView textView;

public CreateDynomicTextView(){}

public CreateDynomicTextView(Context context){

mContext = context;

}

public void setTextView(){

textView = new TextView(mContext);

}

public TextView getTextView(){

textView = new TextView(mContext);

textView.setText("hii added");

return textView;

}

Create Parrent Layout

<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    >
    <data>       
        <variable
            name="createTV"
            type="com.webkul.mobikul_cs_cart.model.CreateDynomicTextView"/>
    </data> 
<LinearLayout
       android:id="@+id/add_ll"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:orientation="vertical"
       app:addDynomicView ="@{createTV.textView}"
        />
</layout>

<layout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

xmlns:card_view="http://schemas.android.com/apk/res-auto"

xmlns:app="http://schemas.android.com/apk/res-auto"

<data>

<variable

name="createTV"

type="com.webkul.mobikul_cs_cart.model.CreateDynomicTextView"/>

</data>

<LinearLayout

android:id="@+id/add_ll"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="vertical"

app:addDynomicView ="@{createTV.textView}"

</layout>

Initialize createTV variable from Activity.

mainBinding.setCreateTV(new CreateDynomicTextView(getContext()));

1	mainBinding.setCreateTV(new CreateDynomicTextView(getContext()));

ashwini gupta 3 February 2017

. . .

5 comments

Chirag Jan 16, 2019 at 4:59 pm

What should we do if we need to add multiple textviews?

jrh Oct 22, 2019 at 5:26 pm

Please share the sample project

ashwini gupta (Moderator) Oct 31, 2019 at 10:49 am
sorry, I can’t share source code because I have deleted the Sample code. what issues are you facing to create dynamically creating a view? Please explain.

Reply
- mochadwi Feb 25, 2020 at 5:43 pm
  app:addDynomicView, is this your custom databinding adapter? would you mind giving us the example of databinding adapter class of yours?
  
  Reply
  - ashwini gupta (Moderator) Feb 28, 2020 at 6:27 pm
    Yes, It is a custom data-binding adapter, that holds two-parameter one LinearLayout and second TextView. we don’t share source code due to company policy.
    What you facing the issue, please explain or share your code so that I can verify your point.
    
    Reply

Dynamically add new View through data binding

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