Revert "feat(android): added ability to create background linear gradients. (#116)" (#122)

This reverts commit 365dad7cc7.

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

@@ -6,7 +6,6 @@ import android.graphics.Bitmap;
 import android.graphics.BitmapShader;
 import android.graphics.Canvas;
 import android.graphics.Color;
-import android.graphics.LinearGradient;
 import android.graphics.Matrix;
 import android.graphics.Paint;
 import android.graphics.Path;
@@ -50,7 +49,6 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
     private int backgroundColor;
     private String backgroundImage;
     private Bitmap backgroundBitmap;
-    private LinearGradientDefinition backgroundGradient;
     private String backgroundRepeat;
     private String backgroundPosition;
     private CSSValue[] backgroundPositionParsedCSSValues;
@@ -151,8 +149,6 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
         return backgroundBitmap;
     }
 
-    public LinearGradientDefinition getBackgroundGradient() { return backgroundGradient; }
-
     public String getBackgroundRepeat() {
         return backgroundRepeat;
     }
@@ -227,7 +223,6 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
                         int backgroundColor,
                         String backgroundImageUri,
                         Bitmap backgroundBitmap,
-                        LinearGradientDefinition backgroundGradient,
                         Context context,
                         String backgroundRepeat,
                         String backgroundPosition,
@@ -255,7 +250,6 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
         this.backgroundColor = backgroundColor;
         this.backgroundImage = backgroundImageUri;
         this.backgroundBitmap = backgroundBitmap;
-        this.backgroundGradient = backgroundGradient;
         this.backgroundRepeat = backgroundRepeat;
         this.backgroundPosition = backgroundPosition;
         this.backgroundPositionParsedCSSValues = backgroundPositionParsedCSSValues;
@@ -367,24 +361,6 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
             }
         }
 
-        if (this.backgroundGradient != null) {
-            LinearGradientDefinition def = this.backgroundGradient;
-            Paint backgroundGradientPaint = new Paint();
-            LinearGradient shader = new LinearGradient(
-                    def.getStartX() * width, def.getStartY() * height,
-                    def.getEndX() * width, def.getEndY() * height,
-                    def.getColors(), def.getStops(), Shader.TileMode.MIRROR);
-            backgroundGradientPaint.setAntiAlias(true);
-            backgroundGradientPaint.setFilterBitmap(true);
-            backgroundGradientPaint.setShader(shader);
-
-            if (this.clipPath != null && !this.clipPath.isEmpty()) {
-                drawClipPath(this.clipPath, canvas, backgroundGradientPaint, backgroundBoundsF, this.density);
-            } else {
-                canvas.drawPath(backgroundPath, backgroundGradientPaint);
-            }
-        }
-
         // draw border
         if (this.clipPath != null && !this.clipPath.isEmpty()) {
             float borderWidth = this.getUniformBorderWidth();
@@ -410,7 +386,7 @@ public class BorderDrawable extends ColorDrawable implements BitmapOwner {
                 float[] borderOuterRadii = {
                     borderTopLeftRadius, borderTopLeftRadius,
                     borderTopRightRadius, borderTopRightRadius,
-                    borderBottomRightRadius, borderBottomRightRadius,
+                    borderBottomRightRadius, borderBottomRightRadius, 
                     borderBottomLeftRadius, borderBottomLeftRadius
                 };
                 borderPath.addRoundRect(borderOuterRect, borderOuterRadii, Path.Direction.CW);

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

@@ -1,29 +0,0 @@
-package org.nativescript.widgets;
-
-/**
- * Created by Vultix on 3/12/2018.
- */
-public class LinearGradientDefinition {
-    private float startX;
-    private float startY;
-    private float endX;
-    private float endY;
-    private int[] colors;
-    private float[] stops;
-
-    public float getStartX() { return startX; }
-    public float getStartY() { return startY; }
-    public float getEndX() { return endX; }
-    public float getEndY() { return endY; }
-    public int[] getColors() { return colors; }
-    public float[] getStops() { return stops; }
-
-    public LinearGradientDefinition(float startX, float startY, float endX, float endY, int[] colors, float[] stops) {
-        this.startX = startX;
-        this.startY = startY;
-        this.endX = endX;
-        this.endY = endY;
-        this.colors = colors;
-        this.stops = stops;
-    }
-}