Android中ShapeDrawable令人討厭的行爲

我爲LinearLayouts背景使用了ShapeDrawable。形狀是由鱈魚做的，因爲我需要根據條件動態地爲它們分配顏色。這裏是我的自定義形狀Android中ShapeDrawable令人討厭的行爲

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); 
     } 
    }

這CustomShapeDrawable用作StateListDrawable我的佈局是這樣的：

 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，該佈局具有我想要的顏色相同的形狀。醜陋的事情發生在屏幕上時，我得到另一個元素，如鍵盤或AlertDialog。當我的應用程序再次獲得焦點時，佈局會隨着它們上的隨機線條和工件而變得瘋狂。這裏是我的意思是：

enter image description here

我能做些什麼來防止或因爲他們長得難看解決這個瑕疵。我不知道爲什麼這首先發生。感謝您爲我提供的任何幫助。

來源

2012-04-26 Alin

沒有任何建議，現在修復的唯一東西是： - 我在我的活動中創建了一個方法，名爲invalidate（），其中對於所有想要刷新的佈局，我添加了layoutId.invalidate（） - 每當被出示一張alertdialog，調用無效（） - 所有EditTexts onFocusChanged或onTextChanged，調用無效（）

不太符合人體工程學的解決方案，但它似乎對現在的工作。

來源

2012-04-27 17:14:13 Alin

Android中ShapeDrawable令人討厭的行爲

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