CODEWITHSUNDEEP
javaandroid
Aalia Jindal
Aalia Jindal

Reputation: 35

How to remove a view added using addContentView?

I have successfully added a child view to a parent view using addContentView(). But when I am trying to remove the view it is giving me a Null Pointer Exception.

    //Working Code
    Button button1=(Button) findViewById(R.id.button1);
    button1.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v)
        {
            getWindow().addContentView(getLayoutInflater().inflate(R.layout.customlayout, null),new FrameLayout.LayoutParams(
                    LayoutParams.MATCH_PARENT,
                    LayoutParams.WRAP_CONTENT ));
        }   
    });


    //Code not Working
    Button button2=(Button) findViewById(R.id.button2);
    button2.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v)
        {
            View myView = findViewById(R.layout.customlayout);
            ViewGroup parent = (ViewGroup) myView.getParent();
            parent.removeView(myView);
        }   
    });

Upvotes: 2

Views: 2150

Answers (3)

user4824674
user4824674

Reputation: 

  ViewGroup viewHolder = (ViewGroup)ViewToRemove.getParent();
  viewHolder.removeView(ViewToRemove);

This is what is working for me.

Upvotes: 1

momor10
momor10

Reputation: 498

in xml give your root layout an id

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/InflateViewLinearLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

</LinearLayout>

and in code you can do something like this

View viewToRemove= findViewById(R.id.InflateViewLinearLayout);
if (viewToRemove != null && (ViewGroup) viewToRemove.getParent() != null && viewToRemove instanceof ViewGroup)
      ((ViewGroup) viewToRemove.getParent()).removeView(viewToRemove);

Upvotes: 1

hata
hata

Reputation: 12478

@Aalia You must identify the view with its id but layout.

View myView = findViewById(R.id.id_of_the_customlayout);

Please set an id of the top ViewGroup of that customlayout.xml.

Upvotes: 0

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