How do I center text horizontally and vertically in a TextView on Android?

1.How do I center the text horizontally and vertically in a TextView in Android, so that it appears exactly in the middle of the TextView?

  A1.    I'm assuming you're using XML layout.

      <TextView       android:layout_width="match_parent"       android:layout_height="match_parent"       android:gravity="center"       android:text="@string/**yourtextstring**"       />

     and

           in java: .setGravity(Gravity.CENTER);




A2.     In xml

           android:gravity="center"

                                 or

         android:layout_centerInParent="true"

A3. In java

         textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);

A4. For Linear Layout: 

       In XML use something like this

        <TextView     android:id="@+id/textView1"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:gravity="center_vertical|center_horizontal"     android:text="Your Text goes here"    />

  To do this at run time use something like this in your activity

       TextView textView1 =(TextView)findViewById(R.id.texView1);

    textView1.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);

For Relative Layout:

       in XML use some thing like this

             <TextView

         android:id="@+id/textView1"
         android:layout_width="fill_parent" 
         android:layout_height="fill_parent" 
         android:layout_centerInParent="true"
         android:text="Your Text goes here"
        />

  To do this at run time use something like this in your activity

              TextView textView1 =(TextView)findViewById(R.id.texView1);

        RelativeLayout.LayoutParams layoutParams =

                           RelativeLayout.LayoutParams)textView1.getLayoutParams();
        layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
        textView1.setLayoutParams(layoutParams);

A5. in Xml 

android:gravity="center" is better than, android:layout_centerInParent="true" which is better than, android:layout_centerHorizontal="true" android:layout_centerVertical="true"