Android

Screen change using buttons Create two activities. Here I'm using MainActivity(1st Screen) and the FunctionActivity(2nd Screen). Add a button to the splash activity layout and give a method name to the onClick action. <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Function" android:id="@+id/button3" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:width="150dp" android:onClick="fdemo"/> </Button> Then write the following method in the MainActivity public void fdemo (View v){ Intent i= new Intent(MainActivity.this, Function.class); startActivity(i); } Adding About message button(Using toast) Add a button to the activity layout and give a method name to the onClick action <Button android:layout_width="wrap_conten...