Android: How to Remove an object from xml programatically

Question

In my app I have a AdView object and Float button in a LinearLayout (Vertical). And I want when the user buys the in-app-purchase "Remove ads" to remove the AdView object from the xml so the FAB button take its place. Like this:

no ads:

How can I do that ? That is my xml code:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
            xmlns:tools="http://schemas.android.com/tools"
            xmlns:materialdesign="http://schemas.android.com/apk/res-auto"
            xmlns:fab="http://schemas.android.com/apk/res-auto"
            xmlns:ads="http://schemas.android.com/apk/res-auto"
            android:layout_width="match_parent"
            android:id="@+id/myMainRelativeLayout"
            android:layout_height="match_parent"
            tools:context=".MainActivity">
<include
    android:id="@+id/tool_bar"
    layout="@layout/tool_bar">
</include>

<android.support.v7.widget.RecyclerView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:focusable="true"
    android:clickable="true"
    android:background="?android:selectableItemBackground"
    android:id="@+id/recyclerView"
    android:layout_below="@+id/tool_bar"
    />

<TextView android:id="@+id/list_empty"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="No Shopping Items yet"
          android:layout_centerVertical="true"
          android:layout_centerHorizontal="true"/>

<LinearLayout
    android:orientation="vertical"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:weightSum="100"
    android:layout_alignParentBottom="true"
    android:layout_centerHorizontal="true">

    <com.software.shell.fab.ActionButton
        android:id="@+id/buttonFloat"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="50"
        android:layout_gravity="center"
        fab:show_animation="@anim/fab_roll_from_down"
        fab:hide_animation="@anim/fab_roll_to_down"/>

    <com.google.android.gms.ads.AdView
        android:id="@+id/adView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="50"
        ads:adSize="BANNER"
        ads:adUnitId="@string/banner_ad_unit_id">
    </com.google.android.gms.ads.AdView>
</LinearLayout>

This is my code that removes the adview:

mIsRemoveAdds = inventory.hasPurchase(SKU_REMOVE_ADDS);
            if(!mIsRemoveAdds) {
                Toast.makeText(MainActivity.this,"no premium",Toast.LENGTH_LONG).show();
                mAdView = (AdView) findViewById(R.id.adView);
                AdRequest adRequest = new AdRequest.Builder().build();
                mAdView.loadAd(adRequest);
            }else{

                if(mAdView != null) {
                    mAdView.setVisibility(View.GONE);
                }
                Toast.makeText(MainActivity.this,"premium",Toast.LENGTH_LONG).show();
            }

Answer 1

To remove any view you can use, where ll is your parent linear layout

ll.removeView(view)// to remove particular view
ll.removeViewAt(position);// to remove view from particular position

Alternatively you can also set visibility of your adView to GONE which will in result give its place to the button.

adButton.setVisibility(View.GONE);  

EDIT:
After looking at your XML I think its weight which is creating the issue.
You should set floatingButton layout_weight to 100 where you are hiding the adView

floatingButton.setLayoutParams(new TableLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 100f));

EDIT:
I would suggest not to use weights as you don't need them.

Answer 2

lets say youViewName is the view you want to remove. if its a LinearLayout use below code, otherwise if its a RelativeLayout replace LinearLayout in the below code by RelativeLayout

((LinearLayout) youViewName.getParent()).removeView(youViewName);

In your case the line below should work

((LinearLayout) mAdView.getParent()).removeView(mAdView);

Answer 3

It is not practical to add the view in xml if you want to dynamically determine whether or not to display it. If you still want to add to add to xml you can just make it invisible or detach/remove the view. Else, don't add the AdView in Xml. I handle this scenario as follows:

        adView = new MoPubView(this.getApplicationContext());
        adView.setAdUnitId(getString(R.string.mopub_banner_adunitid));
        adView.refreshDrawableState();
        adView.setBannerAdListener(this);
        if(!Prefs.getUserPreferenceBooleanValue(Prefs.Key.REMOVE_ADS_PAID, this)) {
              frameLayout.addView(adView, bannerViewLayoutParams);      
              adView.loadAd();

        }

Add the adview programatically in your code. Store a flag in shared preferences and set it as required to display or remove ads. when the activity loads, read the flag and determine whether or not to add the adview to the layout.

For the size of the button you can sent it to be relative to the available space or resize it based on the value of flag.