fixes

android/widgets/src/main/java/org/nativescript/widgets/CommonLayoutParams.java

@@ -26,7 +26,7 @@ public class CommonLayoutParams extends FrameLayout.LayoutParams {
     private static final StringBuilder sb = new StringBuilder();
 
     public CommonLayoutParams() {
-        super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
+        super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, Gravity.FILL);
     }
 
     public float widthPercent = 0;

android/widgets/src/main/java/org/nativescript/widgets/TabStrip.java

@@ -51,8 +51,8 @@ class TabStrip extends LinearLayout {
     private final SimpleTabColorizer mDefaultTabColorizer;
 
     private int mDefaultTabTextColor;
-    private Integer mTabTextColor;
-    private Integer mSelectedTabTextColor;
+    private int mTabTextColor = -1;
+    private int mSelectedTabTextColor = -1;
 
     TabStrip(Context context) {
         this(context, null);
@@ -98,21 +98,21 @@ class TabStrip extends LinearLayout {
         invalidate();
     }
 
-    void setTabTextColor(Integer color){
+    void setTabTextColor(int color){
         mTabTextColor = color;
         updateTabsTextColor();
     }
 
-    Integer getTabTextColor(){
+    int getTabTextColor(){
         return mTabTextColor;
     }
 
-    void setSelectedTabTextColor(Integer color){
+    void setSelectedTabTextColor(int color){
         mSelectedTabTextColor = color;
         updateTabsTextColor();
     }
 
-    Integer getSelectedTabTextColor(){
+    int getSelectedTabTextColor(){
         return mSelectedTabTextColor;
     }
 
@@ -122,7 +122,7 @@ class TabStrip extends LinearLayout {
             LinearLayout linearLayout = (LinearLayout)getChildAt(i);
             TextView textView = (TextView)linearLayout.getChildAt(1);
             if (i == mSelectedPosition){
-                if (mSelectedTabTextColor != null){
+                if (mSelectedTabTextColor >= 0){
                     textView.setTextColor(mSelectedTabTextColor);
                 }
                 else {
@@ -130,7 +130,7 @@ class TabStrip extends LinearLayout {
                 }
             }
             else {
-                if (mTabTextColor != null){
+                if (mTabTextColor >= 0){
                     textView.setTextColor(mTabTextColor);
                 }
                 else {

android/widgets/src/main/java/org/nativescript/widgets/ViewHelper.java

@@ -11,383 +11,514 @@ import android.widget.FrameLayout;
  */
 
 public class ViewHelper {
-        private ViewHelper() {
+    private ViewHelper() {
 
+    }
+
+    static final int version = android.os.Build.VERSION.SDK_INT;
+
+    public static int getMinWidth(android.view.View view) {
+        return view.getMinimumWidth();
+    }
+
+    public static void setMinWidth(android.view.View view, int value) {
+        view.setMinimumWidth(value);
+    }
+
+    public static int getMinHeight(android.view.View view) {
+        return view.getMinimumHeight();
+    }
+
+    public static void setMinHeight(android.view.View view, int value) {
+        view.setMinimumHeight(value);
+    }
+
+    public static int getWidth(android.view.View view) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params != null) {
+            return params.width;
         }
 
-        static final int version = android.os.Build.VERSION.SDK_INT;
+        return ViewGroup.LayoutParams.MATCH_PARENT;
+    }
 
-        public static int getMinWidth(android.view.View view) {
-            return view.getMinimumWidth();
-        }
-        public static void setMinWidth(android.view.View view, int value) {
-            view.setMinimumWidth(value);
+    public static void setWidth(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params == null) {
+            params = new CommonLayoutParams();
+            params.width = value;
         }
 
-        public static int getMinHeight(android.view.View view) {
-            return view.getMinimumHeight();
-        }
-        public static void setMinHeight(android.view.View view, int value) {
-            view.setMinimumHeight(value);
+        view.setLayoutParams(params);
+    }
+
+    public static void setWidthPercent(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params == null) {
+            CommonLayoutParams lp = new CommonLayoutParams();
         }
 
-        public static int getWidth(android.view.View view) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params != null) {
-                return params.width;
-            }
-
-            return ViewGroup.LayoutParams.MATCH_PARENT;
+        if (params instanceof CommonLayoutParams) {
+            CommonLayoutParams lp = (CommonLayoutParams) params;
+            lp.widthPercent = value;
+            lp.width = (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.FILL_HORIZONTAL ? ViewGroup.LayoutParams.MATCH_PARENT : ViewGroup.LayoutParams.WRAP_CONTENT;
+            view.setLayoutParams(params);
         }
-        public static void setWidth(android.view.View view, int value) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params == null) {
-                params = new CommonLayoutParams();
-                params.width = value;
-            }
+    }
 
+    public static int getHeight(android.view.View view) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params != null) {
+            return params.height;
+        }
+
+        return ViewGroup.LayoutParams.MATCH_PARENT;
+    }
+
+    public static void setHeight(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params == null) {
+            params = new CommonLayoutParams();
+            params.height = value;
+        }
+
+        view.setLayoutParams(params);
+    }
+
+    public static void setHeightPercent(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params == null) {
+            CommonLayoutParams lp = new CommonLayoutParams();
+        }
+
+        if (params instanceof CommonLayoutParams) {
+            CommonLayoutParams lp = (CommonLayoutParams) params;
+            lp.heightPercent = value;
+            lp.height = (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.FILL_VERTICAL ? ViewGroup.LayoutParams.MATCH_PARENT : ViewGroup.LayoutParams.WRAP_CONTENT;
+            view.setLayoutParams(params);
+        }
+    }
+
+    public static Rect getMargin(android.view.View view) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params instanceof ViewGroup.MarginLayoutParams) {
+            ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
+            return new Rect(lp.leftMargin, lp.topMargin, lp.rightMargin, lp.bottomMargin);
+        }
+
+        return new Rect();
+    }
+
+    public static void setMargin(android.view.View view, int left, int top, int right, int bottom) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        // Initialize if empty.
+        if (params == null) {
+            params = new CommonLayoutParams();
+        }
+
+        // Set margins only if params are of the correct type.
+        if (params instanceof ViewGroup.MarginLayoutParams) {
+            ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
+            lp.leftMargin = left;
+            lp.topMargin = top;
+            lp.rightMargin = right;
+            lp.bottomMargin = bottom;
+            view.setLayoutParams(params);
+        }
+    }
+
+    public static int getMarginLeft(android.view.View view) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params instanceof ViewGroup.MarginLayoutParams) {
+            ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
+            return lp.leftMargin;
+        }
+
+        return 0;
+    }
+
+    public static void setMarginLeft(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        // Initialize if empty.
+        if (params == null) {
+            params = new CommonLayoutParams();
+        }
+
+        // Set margins only if params are of the correct type.
+        if (params instanceof ViewGroup.MarginLayoutParams) {
+            ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
+            lp.leftMargin = value;
             view.setLayoutParams(params);
         }
 
-        public static int getHeight(android.view.View view) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params != null) {
-                return params.height;
-            }
-
-            return ViewGroup.LayoutParams.MATCH_PARENT;
+        if (params instanceof CommonLayoutParams) {
+            CommonLayoutParams lp = (CommonLayoutParams) params;
+            lp.leftMarginPercent = -1;
+            view.setLayoutParams(params);
         }
-        public static void setHeight(android.view.View view, int value) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params == null) {
-                params = new CommonLayoutParams();
-                params.height = value;
-            }
+    }
 
+    public static void setMarginLeftPercent(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params == null) {
+            CommonLayoutParams lp = new CommonLayoutParams();
+        }
+
+        if (params instanceof CommonLayoutParams) {
+            CommonLayoutParams lp = (CommonLayoutParams) params;
+            lp.leftMargin = 0;
+            lp.leftMarginPercent = value;
+            view.setLayoutParams(params);
+        }
+    }
+
+    public static int getMarginTop(android.view.View view) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params instanceof ViewGroup.MarginLayoutParams) {
+            ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
+            return lp.topMargin;
+        }
+
+        return 0;
+    }
+
+    public static void setMarginTop(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        // Initialize if empty.
+        if (params == null) {
+            params = new CommonLayoutParams();
+        }
+
+        // Set margins only if params are of the correct type.
+        if (params instanceof ViewGroup.MarginLayoutParams) {
+            ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
+            lp.topMargin = value;
             view.setLayoutParams(params);
         }
 
-        public static Rect getMargin(android.view.View view) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params instanceof ViewGroup.MarginLayoutParams) {
-                ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
-                return new Rect(lp.leftMargin, lp.topMargin, lp.rightMargin, lp.bottomMargin);
-            }
-
-            return new Rect();
+        if (params instanceof CommonLayoutParams) {
+            CommonLayoutParams lp = (CommonLayoutParams) params;
+            lp.topMarginPercent = -1;
+            view.setLayoutParams(params);
         }
-        public static void setMargin(android.view.View view, int left, int top, int right, int bottom) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            // Initialize if empty.
-            if (params == null) {
-                params = new CommonLayoutParams();
-            }
+    }
 
-            // Set margins only if params are of the correct type.
-            if (params instanceof ViewGroup.MarginLayoutParams) {
-                ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
-                lp.leftMargin = left;
-                lp.topMargin = top;
-                lp.rightMargin = right;
-                lp.bottomMargin = bottom;
-                view.setLayoutParams(params);
-            }
+    public static void setMarginTopPercent(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params == null) {
+            CommonLayoutParams lp = new CommonLayoutParams();
         }
 
-        public static int getMarginLeft(android.view.View view) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params instanceof ViewGroup.MarginLayoutParams) {
-                ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
-                return lp.leftMargin;
-            }
-
-            return 0;
+        if (params instanceof CommonLayoutParams) {
+            CommonLayoutParams lp = (CommonLayoutParams) params;
+            lp.topMargin = 0;
+            lp.topMarginPercent = value;
+            view.setLayoutParams(params);
         }
-        public static void setMarginLeft(android.view.View view, int value) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            // Initialize if empty.
-            if (params == null) {
-                params = new CommonLayoutParams();
-            }
+    }
 
-            // Set margins only if params are of the correct type.
-            if (params instanceof ViewGroup.MarginLayoutParams) {
-                ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
-                lp.leftMargin = value;
-                view.setLayoutParams(params);
-            }
+    public static int getMarginRight(android.view.View view) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params instanceof ViewGroup.MarginLayoutParams) {
+            ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
+            return lp.rightMargin;
         }
 
-        public static int getMarginTop(android.view.View view) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params instanceof ViewGroup.MarginLayoutParams) {
-                ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
-                return lp.topMargin;
-            }
+        return 0;
+    }
 
-            return 0;
-        }
-        public static void setMarginTop(android.view.View view, int value) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            // Initialize if empty.
-            if (params == null) {
-                params = new CommonLayoutParams();
-            }
-
-            // Set margins only if params are of the correct type.
-            if (params instanceof ViewGroup.MarginLayoutParams) {
-                ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
-                lp.topMargin = value;
-                view.setLayoutParams(params);
-            }
+    public static void setMarginRight(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        // Initialize if empty.
+        if (params == null) {
+            params = new CommonLayoutParams();
         }
 
-        public static int getMarginRight(android.view.View view) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params instanceof ViewGroup.MarginLayoutParams) {
-                ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
-                return lp.rightMargin;
-            }
-
-            return 0;
-        }
-        public static void setMarginRight(android.view.View view, int value) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            // Initialize if empty.
-            if (params == null) {
-                params = new CommonLayoutParams();
-            }
-
-            // Set margins only if params are of the correct type.
-            if (params instanceof ViewGroup.MarginLayoutParams) {
-                ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
-                lp.rightMargin = value;
-                view.setLayoutParams(params);
-            }
+        // Set margins only if params are of the correct type.
+        if (params instanceof ViewGroup.MarginLayoutParams) {
+            ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
+            lp.rightMargin = value;
+            view.setLayoutParams(params);
         }
 
-        public static int getMarginBottom(android.view.View view) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params instanceof ViewGroup.MarginLayoutParams) {
-                ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
-                return lp.bottomMargin;
-            }
-
-            return 0;
+        if (params instanceof CommonLayoutParams) {
+            CommonLayoutParams lp = (CommonLayoutParams) params;
+            lp.rightMarginPercent = -1;
+            view.setLayoutParams(params);
         }
-        public static void setMarginBottom(android.view.View view, int value) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            // Initialize if empty.
-            if (params == null) {
-                params = new CommonLayoutParams();
-            }
+    }
 
-            // Set margins only if params are of the correct type.
-            if (params instanceof ViewGroup.MarginLayoutParams) {
-                ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
-                lp.bottomMargin = value;
-                view.setLayoutParams(params);
-            }
+    public static void setMarginRightPercent(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params == null) {
+            CommonLayoutParams lp = new CommonLayoutParams();
         }
 
-        public static String getHorizontalAlighment(android.view.View view) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params instanceof FrameLayout.LayoutParams) {
-                FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) params;
-                if (Gravity.isHorizontal(lp.gravity)) {
-                    switch (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
-                        case Gravity.LEFT:
-                            return "left";
-                        case Gravity.CENTER:
-                            return "center";
-                        case Gravity.RIGHT:
-                            return "right";
-                        case Gravity.FILL_HORIZONTAL:
-                            return "stretch";
+        if (params instanceof CommonLayoutParams) {
+            CommonLayoutParams lp = (CommonLayoutParams) params;
+            lp.rightMargin = 0;
+            lp.rightMarginPercent = value;
+            view.setLayoutParams(params);
+        }
+    }
+
+    public static int getMarginBottom(android.view.View view) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params instanceof ViewGroup.MarginLayoutParams) {
+            ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
+            return lp.bottomMargin;
+        }
+
+        return 0;
+    }
+
+    public static void setMarginBottom(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        // Initialize if empty.
+        if (params == null) {
+            params = new CommonLayoutParams();
+        }
+
+        // Set margins only if params are of the correct type.
+        if (params instanceof ViewGroup.MarginLayoutParams) {
+            ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) params;
+            lp.bottomMargin = value;
+            view.setLayoutParams(params);
+        }
+
+        if (params instanceof CommonLayoutParams) {
+            CommonLayoutParams lp = (CommonLayoutParams) params;
+            lp.bottomMarginPercent = -1;
+            view.setLayoutParams(params);
+        }
+    }
+
+    public static void setMarginBottomPercent(android.view.View view, int value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params == null) {
+            CommonLayoutParams lp = new CommonLayoutParams();
+        }
+
+        if (params instanceof CommonLayoutParams) {
+            CommonLayoutParams lp = (CommonLayoutParams) params;
+            lp.bottomMargin = 0;
+            lp.bottomMarginPercent = value;
+            view.setLayoutParams(params);
+        }
+    }
+
+    public static String getHorizontalAlignment(android.view.View view) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params instanceof FrameLayout.LayoutParams) {
+            FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) params;
+            if (Gravity.isHorizontal(lp.gravity)) {
+                switch (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
+                    case Gravity.LEFT:
+                        return "left";
+                    case Gravity.CENTER:
+                        return "center";
+                    case Gravity.RIGHT:
+                        return "right";
+                    case Gravity.FILL_HORIZONTAL:
+                        return "stretch";
 
-                    }
                 }
             }
-
-            return "stretch";
-        }
-        public static void setHorizontalAlighment(android.view.View view, String value) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            // Initialize if empty.
-            if (params == null) {
-                params = new CommonLayoutParams();
-            }
-
-            // Set margins only if params are of the correct type.
-            if (params instanceof FrameLayout.LayoutParams) {
-                FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) params;
-                switch (value) {
-                    case "left":
-                        lp.gravity = Gravity.LEFT | (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK);
-                        break;
-                    case "center":
-                        lp.gravity = Gravity.CENTER_HORIZONTAL | (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK);
-                        break;
-                    case "right":
-                        lp.gravity = Gravity.RIGHT | (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK);
-                        break;
-                    case "stretch":
-                        lp.gravity = Gravity.FILL_HORIZONTAL | (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK);
-                        break;
-                }
-                view.setLayoutParams(params);
-            }
         }
 
-        public static String getVerticalAlignment(android.view.View view) {
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            if (params instanceof FrameLayout.LayoutParams) {
-                FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) params;
-                if (Gravity.isHorizontal(lp.gravity)) {
-                    switch (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK) {
-                        case Gravity.TOP:
-                            return "top";
-                        case Gravity.CENTER:
-                            return "center";
-                        case Gravity.BOTTOM:
-                            return "bottom";
-                        case Gravity.FILL_VERTICAL:
-                            return "stretch";
+        return "stretch";
+    }
+
+    public static void setHorizontalAlignment(android.view.View view, String value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        // Initialize if empty.
+        if (params == null) {
+            params = new CommonLayoutParams();
+        }
+
+        // Set margins only if params are of the correct type.
+        if (params instanceof FrameLayout.LayoutParams) {
+            FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) params;
+            switch (value) {
+                case "left":
+                    lp.gravity = Gravity.LEFT | (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK);
+                    break;
+                case "center":
+                case "middle":
+                    lp.gravity = Gravity.CENTER_HORIZONTAL | (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK);
+                    break;
+                case "right":
+                    lp.gravity = Gravity.RIGHT | (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK);
+                    break;
+                case "stretch":
+                    lp.gravity = Gravity.FILL_HORIZONTAL | (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK);
+                    break;
+            }
+            view.setLayoutParams(params);
+        }
+    }
+
+    public static String getVerticalAlignment(android.view.View view) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        if (params instanceof FrameLayout.LayoutParams) {
+            FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) params;
+            if (Gravity.isHorizontal(lp.gravity)) {
+                switch (lp.gravity & Gravity.VERTICAL_GRAVITY_MASK) {
+                    case Gravity.TOP:
+                        return "top";
+                    case Gravity.CENTER:
+                        return "center";
+                    case Gravity.BOTTOM:
+                        return "bottom";
+                    case Gravity.FILL_VERTICAL:
+                        return "stretch";
 
-                    }
                 }
             }
-
-            return "stretch";
         }
-        public static void setVerticalAlignment(android.view.View view, String value){
-            ViewGroup.LayoutParams params = view.getLayoutParams();
-            // Initialize if empty.
-            if (params == null) {
-                params = new CommonLayoutParams();
+
+        return "stretch";
+    }
+
+    public static void setVerticalAlignment(android.view.View view, String value) {
+        ViewGroup.LayoutParams params = view.getLayoutParams();
+        // Initialize if empty.
+        if (params == null) {
+            params = new CommonLayoutParams();
+        }
+
+        // Set margins only if params are of the correct type.
+        if (params instanceof FrameLayout.LayoutParams) {
+            FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) params;
+            switch (value) {
+                case "top":
+                    lp.gravity = Gravity.TOP | (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK);
+                    break;
+                case "center":
+                case "middle":
+                    lp.gravity = Gravity.CENTER_VERTICAL | (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK);
+                    break;
+                case "bottom":
+                    lp.gravity = Gravity.BOTTOM | (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK);
+                    break;
+                case "stretch":
+                    lp.gravity = Gravity.FILL_VERTICAL | (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK);
+                    break;
             }
+            view.setLayoutParams(params);
+        }
+    }
 
-            // Set margins only if params are of the correct type.
-            if (params instanceof FrameLayout.LayoutParams) {
-                FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) params;
-                switch (value) {
-                    case "top":
-                        lp.gravity = Gravity.TOP | (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK);
-                        break;
-                    case "center":
-                        lp.gravity = Gravity.CENTER_VERTICAL | (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK);
-                        break;
-                    case "bottom":
-                        lp.gravity = Gravity.BOTTOM| (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK);
-                        break;
-                    case "stretch":
-                        lp.gravity = Gravity.FILL_VERTICAL | (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK);
-                        break;
-                }
-                view.setLayoutParams(params);
-            }
+    public static Rect getPadding(android.view.View view) {
+        return new Rect(view.getPaddingLeft(), view.getPaddingTop(), view.getPaddingRight(), view.getPaddingBottom());
+    }
+
+    public static void setPadding(android.view.View view, int left, int top, int right, int bottom) {
+        view.setPadding(left, top, right, bottom);
+    }
+
+    public static int getPaddingLeft(android.view.View view) {
+        return view.getPaddingLeft();
+    }
+
+    public static void setPaddingLeft(android.view.View view, int value) {
+        view.setPadding(value, view.getPaddingTop(), view.getPaddingRight(), view.getPaddingBottom());
+    }
+
+    public static int getPaddingTop(android.view.View view) {
+        return view.getPaddingTop();
+    }
+
+    public static void setPaddingTop(android.view.View view, int value) {
+        view.setPadding(view.getPaddingLeft(), value, view.getPaddingRight(), view.getPaddingBottom());
+    }
+
+    public static int getPaddingRight(android.view.View view) {
+        return view.getPaddingRight();
+    }
+
+    public static void setPaddingRight(android.view.View view, int value) {
+        view.setPadding(view.getPaddingLeft(), view.getPaddingTop(), value, view.getPaddingBottom());
+    }
+
+    public static int getPaddingBottom(android.view.View view) {
+        return view.getPaddingBottom();
+    }
+
+    public static void setPaddingBottom(android.view.View view, int value) {
+        view.setPadding(view.getPaddingLeft(), view.getPaddingTop(), view.getPaddingRight(), value);
+    }
+
+    public static float getRotate(android.view.View view) {
+        return view.getRotation();
+    }
+
+    public static void setRotate(android.view.View view, float value) {
+        view.setRotation(value);
+    }
+
+    public static float getScaleX(android.view.View view) {
+        return view.getScaleX();
+    }
+
+    public static void setScaleX(android.view.View view, float value) {
+        view.setScaleX(value);
+    }
+
+    public static float getScaleY(android.view.View view) {
+        return view.getScaleY();
+    }
+
+    public static void setScaleY(android.view.View view, float value) {
+        view.setScaleY(value);
+    }
+
+    public static float getTranslateX(android.view.View view) {
+        return view.getTranslationX();
+    }
+
+    public static void setTranslateX(android.view.View view, float value) {
+        view.setTranslationX(value);
+    }
+
+    public static float getTranslateY(android.view.View view) {
+        return view.getTranslationY();
+    }
+
+    public static void setTranslateY(android.view.View view, float value) {
+        view.setTranslationY(value);
+    }
+
+    @TargetApi(21)
+    public static float getZIndex(android.view.View view) {
+        if (ViewHelper.version >= 21) {
+            return view.getZ();
         }
 
-        public static Rect getPadding(android.view.View view) {
-            return new Rect(view.getPaddingLeft(), view.getPaddingTop(), view.getPaddingRight(), view.getPaddingBottom());
+        return 0;
+    }
+
+    @TargetApi(21)
+    public static void setZIndex(android.view.View view, float value) {
+        if (ViewHelper.version >= 21) {
+            view.setZ(value);
         }
-        public static void setPadding(android.view.View view, int left, int top, int right, int bottom) {
-            view.setPadding(left, top, right, bottom);
+    }
+
+    @TargetApi(21)
+    public static float getLetterspacing(android.widget.TextView textView) {
+        if (ViewHelper.version >= 21) {
+            return textView.getLetterSpacing();
         }
 
-        public static int getPaddingLeft(android.view.View view) {
-            return view.getPaddingLeft();
-        }
-        public static void setPaddingLeft(android.view.View view, int value) {
-            view.setPadding(value, view.getPaddingTop(), view.getPaddingRight(), view.getPaddingBottom());
-        }
+        return 0;
+    }
 
-        public static int getPaddingTop(android.view.View view) {
-            return view.getPaddingTop();
-        }
-        public static void setPaddingTop(android.view.View view, int value) {
-            view.setPadding(view.getPaddingLeft(), value, view.getPaddingRight(), view.getPaddingBottom());
-        }
-
-        public static int getPaddingRight(android.view.View view) {
-            return view.getPaddingRight();
-        }
-        public static void setPaddingRight(android.view.View view, int value) {
-            view.setPadding(view.getPaddingLeft(), view.getPaddingTop(), value, view.getPaddingBottom());
-        }
-
-        public static int getPaddingBottom(android.view.View view) {
-            return view.getPaddingBottom();
-        }
-        public static void setPaddingBottom(android.view.View view, int value) {
-            view.setPadding(view.getPaddingLeft(), view.getPaddingTop(), view.getPaddingRight(), value);
-        }
-
-        public static float getRotate(android.view.View view) {
-            return view.getRotation();
-        }
-        public static void setRotate(android.view.View view, float value) {
-            view.setRotation(value);
-        }
-
-        public static float getScaleX(android.view.View view) {
-            return view.getScaleX();
-        }
-        public static void setScaleX(android.view.View view, float value) {
-            view.setScaleX(value);
-        }
-
-        public static float getScaleY(android.view.View view) {
-            return view.getScaleY();
-        }
-        public static void setScaleY(android.view.View view, float value) {
-            view.setScaleY(value);
-        }
-
-        public static float getTranslateX(android.view.View view) {
-            return view.getTranslationX();
-        }
-        public static void setTranslateX(android.view.View view, float value) {
-            view.setTranslationX(value);
-        }
-
-        public static float getTranslateY(android.view.View view) {
-            return view.getTranslationY();
-        }
-        public static void setTranslateY(android.view.View view, float value) {
-            view.setTranslationY(value);
-        }
-
-        @TargetApi(21)
-        public static float getZIndex(android.view.View view) {
-            if (ViewHelper.version >= 21) {
-                return view.getZ();
-            }
-
-            return 0;
-        }
-
-        @TargetApi(21)
-        public static void setZIndex(android.view.View view, float value) {
-            if (ViewHelper.version >= 21) {
-                view.setZ(value);
-            }
-        }
-
-        @TargetApi(21)
-        public static float getLetterspacing(android.widget.TextView textView) {
-            if (ViewHelper.version >= 21) {
-                return textView.getLetterSpacing();
-            }
-
-            return 0;
-        }
-
-        @TargetApi(21)
-        public static void setLetterspacing(android.widget.TextView textView, float value) {
-            if (ViewHelper.version >= 21) {
-                textView.setLetterSpacing(value);
-            }
+    @TargetApi(21)
+    public static void setLetterspacing(android.widget.TextView textView, float value) {
+        if (ViewHelper.version >= 21) {
+            textView.setLetterSpacing(value);
         }
+    }
 }