Question

基本上是标题。我创建了一个更大的数组的新片段，我得到了这个错误。我必须创建一个更大阵列的新fragemnt来显示它。（想想口袋妖怪，地图是大数组，但显示的屏幕是该地图的片段。）这是代码。

调用方法的地方：

    public void showWorldFragment(){
******ERROR WITH THIS LINE*********
        int[][] map = getWorldFragment(mapPack.map);
        if(map[0][0] == 1){
            c.drawBitmap(balloon, 0, 0, null);
        }
        if(map[0][0] == 2){
            c.drawBitmap(archer, 0, 0, null);
        }
        if(map[1][0] == 1){
            c.drawBitmap(balloon, canvasWidth/3, 0, null);
        }
        if(map[1][0] == 2){
            c.drawBitmap(archer, canvasWidth/3, 0, null);
        }
        if(map[2][0] == 1){
            c.drawBitmap(balloon, 2*(canvasWidth/3), 0, null);
        }
        if(map[2][0] == 2){
            c.drawBitmap(archer, 2*(canvasWidth/3), 0, null);
        }
        if(map[0][1] == 1){
            c.drawBitmap(balloon, 0, canvasHeight/3, null);
        }
        if(map[0][1] == 2){
            c.drawBitmap(archer, 0, canvasHeight/3, null);
        }
        if(map[1][1] == 1){
            c.drawBitmap(balloon, canvasWidth/3, canvasHeight/3, null);
        }
        if(map[1][1] == 2){
            c.drawBitmap(archer, canvasWidth/3, canvasHeight/3, null);
        }
        if(map[2][1] == 1){
            c.drawBitmap(balloon, 2*(canvasWidth/3), canvasHeight/3, null);
        }
        if(map[2][1] == 2){
            c.drawBitmap(archer, 2*(canvasWidth/3), canvasHeight/3, null);
        }
        if(map[0][2] == 1){
            c.drawBitmap(balloon, 0, 2*(canvasHeight/3), null);
        }
        if(map[0][2] == 2){
            c.drawBitmap(archer, 0, 2*(canvasHeight/3), null);
        }
        if(map[1][2] == 1){
            c.drawBitmap(balloon, (canvasWidth/3), 2*(canvasHeight/3), null);
        }
        if(map[1][2] == 2){
            c.drawBitmap(archer, (canvasWidth/3),  2*(canvasHeight/3), null);
        }
        if(map[2][2] == 1){
            c.drawBitmap(balloon, 2*(canvasWidth/3), 2*(canvasHeight/3), null);
        }
        if(map[2][2] == 2){
            c.drawBitmap(archer, 2*(canvasWidth/3), 2*(canvasHeight/3), null);
        }

    }

调用方法的地方：

    public int[][] getWorldFragment(int[][] map) {
        int centerX = x;
        int centerY = y;
        if(x == 0){
            centerX = 1;
        }
        if(x == map.length){
            centerX = map.length-1;
        }
        if(y == 0){
            centerY = 1;
        }
        if(y == map.length){
            centerY = map.length-1;
        }
        int[][] tempFragmentArray = new int[][]{
                {map[centerX-1][centerY-1], map[centerX][centerY-1], map[centerX + 1][centerY - 1]},
                {map[centerX-1][centerY], map[centerX][centerY], map[centerX + 1][centerY]},
                {map[centerX-1][centerY+1], map[centerX][centerY+1], map[centerX + 1][centerY + 1]},

        };
        return tempFragmentArray;

    }

mapPack.map是一个较大的5x5数组，只保存基本的整数值。有没有人知道为什么会这样？

如果需要更多详细信息，请与我们联系。

谢谢：）

Answer 1

我认为内部异常来自这一行：

 int[][] tempFragmentArray = new int[][]{
                 {map[centerX-1][centerY-1], map[centerX][centerY-1], map[centerX +      1][centerY - 1]},
                 {map[centerX-1][centerY], map[centerX][centerY], map[centerX + 1][centerY]},
                 {map[centerX-1][centerY+1], map[centerX][centerY+1], map[centerX +      1][centerY + 1]},

    };

变量x和y看起来是内部类成员，可能它们会转到2D地图数组的错误索引。

为什么我得到＆＃34; ArrayIndexOutOfBoundsException＆＃34;这里？

1 个答案: