Getting Started with Android Development (iii) Introduction to fragmentation 3.1 Dynamic add fragments

The real use of fragment is to add them dynamically during the program's operation.

1. New project.

2. Res/layout/main.xml

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android=     
"http://schemas.android.com/apk/" Res/android " 
    android:layout_width=" fill_parent " 
    android:layout_height=" fill_parent " 
    android:o" rientation= "Horizontal" >     
         
</LinearLayout>

3. Res/layout/fragment1.xml

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android=     
"http://schemas.android.com/apk/" Res/android " 
    android:layout_width=" fill_parent " 
    android:layout_height=" Fill_parent " 
    android: Background= "#00FF00" 
    android:orientation= "vertical" >     
         
    <textview     
        android:id= "@+id/lblfragment1" " 
        android:layout_width=" fill_parent " 
        android:layout_height=" wrap_content " 
        android:text=" This is Fragment #1 " 
        android:textcolor=" #000000 " 
        android:textsize=" 25sp "/>     
         
</LinearLayout>

4. Res/layout/fragment2.xml

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android=     
"http://schemas.android.com/apk/" Res/android " 
    android:layout_width=" fill_parent " 
    android:layout_height=" Fill_parent " 
    android: Background= "#FFFE00" 
    android:orientation= "vertical" >     
         
    <textview     
        android:layout_width= "Fill_" Parent " 
        android:layout_height=" wrap_content " 
        android:text=" This is fragment #2 " 
        android:textcolor=" # 000000 " 
        android:textsize=" 25sp "/>     
         
</LinearLayout>

5. Fragment1.java

public class Fragment1 extends Fragment 

{     
    @Override public 
    View Oncreateview (Layoutinflater inflater, ViewGroup container,     
            Bundle savedinstancestate) {     
        //---Inflate the layout for this fragment---     
        return Inflater.inflate (R.layout.fragment1, container, false);     
    }     

6. Fragment2.java

public class Fragment2 extends Fragment {     
    @Override public 
    View Oncreateview (layoutinflater inflater, ViewGroup Container,     
            Bundle savedinstancestate) {     
        //---Inflate the layout for this fragment---     
        return Inflater.inflate (R.layout.fragment2, container, false);     
    }