How add this view dynamically

Question

I want to add some view dynamically.

LinearLayout mDescriptionLayout = (LinearLayout)findViewById(R.id.descriptionLayout); 
LayoutInflater inflater = (LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate (R.layout.bonus_info_item, null,false);
TextView counter = (TextView) view.findViewById(R.id.counter);
TextView descriptionText = (TextView) view.findViewById(R.id.descriptionText);
String [] s = {"","A","B", "C","D"};
for (int i = 1; i < 5; i++){
 counter.setText(String.valueOf(i));
 descriptionText.setText(s[i]);
 mDescriptionLayout.addView(view);
}

This is my main.xml and I want add this inflated view in LinearLayout(@id/descriptionLayout)

<ScrollView
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:fillViewport="true">
 <RelativeLayout
 android:layout_width="match_parent"
 android:layout_height="match_parent">
 <TextView
 android:id="@+id/days"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content" 
 android:textSize="12sp"/>
 <LinearLayout
 android:id="@+id/descriptionLayout"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:layout_below="@id/bonusCardTitleText"
 android:orientation="vertical">
 </LinearLayout>
 </RelativeLayout>
 </ScrollView>

I don't understand what is the problem in here that I can't add view dynamically and I always got this error.

Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
 at android.view.ViewGroup.addViewInner(ViewGroup.java:3339)
 at android.view.ViewGroup.addView(ViewGroup.java:3210)
 at android.view.ViewGroup.addView(ViewGroup.java:3155)
 at android.view.ViewGroup.addView(ViewGroup.java:3131)

• Neoh: When you create your layout in xml, the layouts are already being created. You don't have to add them again, this will cause error.

Answer 1

As the error says,

The specified child already has a parent. You must call removeView() on the child's parent first.

you are trying to add a child View to a parent and the child already has a parent( after the first iteration of your for loop). Either declaring and initializing the View inside the for loop or calling remove() each time should fix it. I'm not sure if you are trying to add this layout multiple times like that but if so then you can try

for (int i = 1; i < 5; i++)
{
 View view = inflater.inflate (R.layout.bonus_info_item, null,false);
 TextView counter = (TextView) view.findViewById(R.id.counter);
 TextView descriptionText = (TextView) view.findViewById(R.id.descriptionText);
 counter.setText(String.valueOf(i));
 descriptionText.setText(s[i]);
 mDescriptionLayout.addView(view);
}

Another way would be to call mDescriptionLayout.removeView(view); but I don't think you want to do this in your situation. Initializing a new View with each iteration through the loop should solve your problem.

Answer 2

You are adding the same TextView object more than once to the LinearLayout. You need to create a new instance of TextView for each item.

for (int i = 1; i < 5; i++){
 View view = inflater.inflate (R.layout.bonus_info_item, null,false);
 TextView counter = (TextView) view.findViewById(R.id.counter);
 TextView descriptionText = (TextView) view.findViewById(R.id.descriptionText);
 counter.setText(String.valueOf(i));
 descriptionText.setText(s[i]);
 mDescriptionLayout.addView(view);
}