Android Centering Text views to the center of the Activity

Using relative layout, it can be kind of achieved using the layout parameter keys such as

"http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:gravity="center"

android:background="#000000"

android:id="@+id/rel1">

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="10"

android:textSize="65dp"

android:textStyle="bold"

android:id="@+id/textView"

android:textColor="#ffffff"/>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text=":"

android:textSize="65dp"

android:textStyle="bold"

android:id="@+id/textView1"

android:layout_toRightOf="@+id/textView"

android:textColor="#ffffff"/>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="20"

android:textSize="65dp"

android:textStyle="bold"

android:id="@+id/textView3"

android:layout_toRightOf="@+id/textView1"

android:textColor="#ffffff"/>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="am"

android:textSize="45dp"

android:textStyle="bold"

android:id="@+id/textView4"

android:layout_toRightOf="@+id/textView3"

android:layout_alignBaseline="@+id/textView"

android:textColor="#ffffff"/>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Saturday, Sep 29"

android:textSize="35dp"

android:textStyle="bold"

android:id="@+id/textView5"

android:layout_below="@+id/textView"

android:textColor="#ffffff"/>

references

http://www.tutorialspoint.com/android/android_relative_layout.htm