Android - How do I make this alert dialog scrollable?

Question

I am a beginner in android and making my first android app. my 'About' menu item, when clicked shows an AlertDialog with a really long message. I have been trying different methods to make it scrollable but I couldn't. I have tried reading different questions on StackOverflow but they didn't work for me. Here is my AlertDialog code.

AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);   alertDialog.setTitle("Title");   alertDialog.setMessage("Here is a really long message.");   alertDialog.setButton("OK", null);   AlertDialog alert = alertDialog.create(); alert.show(); 

Can anybody explain to me in detail how to make it scrollable? Any help or suggestions would be appreciated!

Answer 1

This solution is take from this post.

In order for a view to scrollable, it must be nested inside of a ScrollView container:

<ScrollView>     <LinearLayout android:orientation="vertical"             android:scrollbars="vertical"             android:scrollbarAlwaysDrawVerticalTrack="true">         <TextView />         <Button />     </LinearLayout> </ScrollView> 

Note that a ScrollView container can only have one child layout view. It is not possible, for example, to place a TextView and Button in a ScrollView without the LinearLayout.

Answer 2

In that situation you can create your own layout.xml file containing a Text View under Scroll View. and set TextMessage in this Text View, Inflate this layout with your alert dialog box.

yourxmlfile.xml

<ScrollView      xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent" >      <LinearLayout          android:layout_width="fill_parent"         android:layout_height="fill_parent" >      <TextView         android:id="@+id/textmsg"         android:layout_width="fill_parent"         android:layout_height="fill_parent"         android:text="@string/hello" />      </LinearLayout> </ScrollView> 

In Activity Class

LayoutInflater inflater= LayoutInflater.from(this); View view=inflater.inflate(R.layout.yourxmlfile, null);  TextView textview=(TextView)view.findViewById(R.id.textmsg); textview.setText("Your really long message."); AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);   alertDialog.setTitle("Title");   //alertDialog.setMessage("Here is a really long message."); alertDialog.setView(view); alertDialog.setButton("OK", null);   AlertDialog alert = alertDialog.create(); alert.show();