Android中ShapeDrawable令人讨厌的行为

我为LinearLayouts背景使用了ShapeDrawable。形状是由鳕鱼做的，因为我需要根据条件动态地为它们分配颜色。这里是我的自定义形状Android中ShapeDrawable令人讨厌的行为

public class CustomShapeDrawable extends ShapeDrawable { 
    private final Paint fillpaint, strokepaint, linePaint = new Paint(); 
    private int strokeWidth = 3; 
    private final boolean disableBottomBorder; 

    public CustomShapeDrawable(Shape s, int fill, int stroke, int strokewidth, boolean disablebottomborder) { 
     super(s); 
     fillpaint = new Paint(this.getPaint()); 
     fillpaint.setColor(fill); 
     strokepaint = new Paint(fillpaint); 
     strokepaint.setStyle(Paint.Style.STROKE); 
     strokepaint.setStrokeWidth(strokewidth); 
     strokepaint.setColor(stroke); 
     linePaint.setStyle(Paint.Style.STROKE); 
     linePaint.setStrokeWidth(strokewidth + 1); 
     linePaint.setColor(fill); 
     strokeWidth = strokewidth; 
     disableBottomBorder = disablebottomborder; 

    } 

    public CustomShapeDrawable(Shape s, int fill, int stroke, boolean disablebottomborder) { 
     super(s); 
     fillpaint = new Paint(this.getPaint()); 
     fillpaint.setColor(fill); 
     strokepaint = new Paint(fillpaint); 
     strokepaint.setStyle(Paint.Style.STROKE); 
     strokepaint.setStrokeWidth(strokeWidth); 
     strokepaint.setColor(stroke); 
     linePaint.setStyle(Paint.Style.STROKE); 
     linePaint.setStrokeWidth(strokeWidth + 1); 
     linePaint.setColor(fill); 
     disableBottomBorder = disablebottomborder; 
    } 

    @Override 
    protected void onDraw(Shape shape, Canvas canvas, Paint paint) { 
     shape.resize(canvas.getClipBounds().right, canvas.getClipBounds().bottom); 
     shape.draw(canvas, fillpaint); 

     Matrix matrix = new Matrix(); 
     matrix.setRectToRect(new RectF(0, 0, canvas.getClipBounds().right, canvas.getClipBounds().bottom), new RectF(strokeWidth/2, strokeWidth/2, canvas.getClipBounds().right - strokeWidth/2, 
       canvas.getClipBounds().bottom - strokeWidth/2), Matrix.ScaleToFit.FILL); 
     canvas.concat(matrix); 

     shape.draw(canvas, strokepaint); 

     if (disableBottomBorder) { 
      canvas.drawLine(0 + strokeWidth/2, shape.getHeight(), shape.getWidth() - strokeWidth/2, shape.getHeight(), linePaint); 
     } 
    }

这CustomShapeDrawable用作StateListDrawable我的布局是这样的：

 RoundRectShape shapeTopCorners = new RoundRectShape(new float[] { 10, 10, 10, 10, 0, 0, 0, 0 }, null, null); 
     ShapeDrawable shapeTopCornersNormal = 
       new CustomShapeDrawable(shapeTopCorners, Global.getFleet().getSkins().getBackgroundcolour(), context.getResources().getColor(R.color.item_line), true); 
     ShapeDrawable shapeTopCornersPressed = 
       new CustomShapeDrawable(shapeTopCorners, context.getResources().getColor(R.color.menu_grey), context.getResources().getColor(R.color.item_line), true); 

     StateListDrawable stateTopCornersRounded = new StateListDrawable(); 
     stateTopCornersRounded.addState(new int[] { android.R.attr.state_focused }, shapeTopCornersPressed); 
     stateTopCornersRounded.addState(new int[] { android.R.attr.state_pressed }, shapeTopCornersPressed); 
     stateTopCornersRounded.addState(new int[] {}, shapeTopCornersNormal);

一切正常，该布局具有我想要的颜色相同的形状。丑陋的事情发生在屏幕上时，我得到另一个元素，如键盘或AlertDialog。当我的应用程序再次获得焦点时，布局会随着它们上的随机线条和工件而变得疯狂。这里是我的意思是：

enter image description here

我能做些什么来防止或因为他们长得难看解决这个瑕疵。我不知道为什么这首先发生。感谢您为我提供的任何帮助。

来源

2012-04-26 Alin

没有任何建议，现在修复的唯一东西是： - 我在我的活动中创建了一个方法，名为invalidate（），其中对于所有想要刷新的布局，我添加了layoutId.invalidate（） - 每当被出示一张alertdialog，调用无效（） - 所有EditTexts onFocusChanged或onTextChanged，调用无效（）

不太符合人体工程学的解决方案，但它似乎对现在的工作。

来源

2012-04-27 17:14:13 Alin

Android中ShapeDrawable令人讨厌的行为

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