private int mHeaderViewHeight; 
private View mHeaderView; 
 
..... 
 
mHeaderView.getViewTreeObserver().addOnGlobalLayoutListener( 
 new OnGlobalLayoutListener() { 
  @Override 
  public void onGlobalLayout() { 
                                                         
   mHeaderViewHeight = mHeaderView.getHeight(); 
   mHeaderView.getViewTreeObserver() 
     .removeGlobalOnLayoutListener(this); 
  } 
}); 

public class TestHeight extends Activity { 
 TextView tv; 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_activity_b); 
   tv = (TextView) findViewById(R.id.textView); 
  tv.post(new Runnable() { 
   @Override 
   public void run() { 
    int height= tv.getHeight(); 
   } 
  }); 
 } 
 
 
} 

int intw=View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED); 
int inth=View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED); 
textView.measure(intw, inth); 
int intwidth = textView.getMeasuredWidth(); 
int intheight = textView.getMeasuredHeight();