Android resizing based on device screen size -

I have the following code in my Android application when I run it on an old Samsung Dart (API <13) , Then I get a null-pointer exception as described below.

Is there any special reason that the code is working for the four rows above it, but is it not that it is getting the NullPointer? ^{@SuppressLint ("NewApi") @Pressing Warnings ("Excluded") Public Zero Adjust Size () {Int width, height; Display display = getWindowManager () GetDefaultDisplay (); If (android.os.build.VERSION.SDK_INT> = 13) {point size = new point (); Display.getSize (size); Width = size.x; Height = size Y; } And {width = display.getWidth (); // Excluded Height = display.getHeight (); // Excluded} Image View Counties = (Image View) ViewById (R.id.btnCounties); ImageView subscriber = (ImageView) findViewById (R.id.btnMembers); ImageView webLink = (ImageView) findViewById (R.id.btnWebLink); ImageView logo = (ImageView) findViewById (R.id.logo); // Calculate the image size if (height & gt; width) {counties.getLayoutParams (). Height = (int) (width / 2.5); Counties.getLayoutParams (). Width = (int) (width / 2.5); Members.getLayoutParams () Height = (int) (width / 2.5); Members.getLayoutParams () Width = (int) (width / 2.5); WebLink.getLayoutParams (). Height = (int) ((width / 2.4) / 3.5); // Null Pointer Error webLink.getLayoutParams (). Width = (int) (width / 2.4); Logo.getLayoutParams () Height = (int) (height / 6); Logo.getLayoutParams () width = width; } And (counties.getLayoutParams). Height = (int) (height / 2.5); Counties.getLayoutParams (). Width = (int) (height / 2.5); Members.getLayoutParams () Height = (int) (height / 2.5); Members.getLayoutParams () Width = (int) (height / 2.5); }}}

just,

  ImageView webLink = (See image) Find VVBID (RID BTN Web Links);   
  webLink  is  null .  
 Check your layout XML: Are you sure the name ( BtnWebLink ) is correct? Are you really loading the correct layout xml file?  
 Potentially you have  ImageView  in a layout but Android is loading the layout of a  specific screen size  where there is no BTN web link  
 
 There is a breakpoint in that row and check whether the variable  webLink  is zero.  
 The blank pointer exception  first time  you try to use the variable.