我正在尝试创建一个以3x3 / 4x4 / 5x5裁剪图像的功能，具体取决于玩家选择的难度，并将它们放在位图数组中。但是，当我运行此功能时，我收到错误：
x + width必须是＆lt; = bitmap.width（）！
我试着看看我做错了什么，但我看不出来。这是代码：
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle extras = this.getIntent().getExtras();
resource = extras.getInt("Image");
difficulty = extras.getInt("difficulty");
Bitmap bmp = BitmapFactory.decodeResource(getResources(), resource);
divideImages(bmp);
和
private void divideImages(Bitmap bmp) {
int width = bmp.getWidth();
int height =bmp.getHeight();
float w_ratio = (float) width/bmp.getWidth();
int scaledwidth = (int) (bmp.getWidth()*w_ratio);
int scaledheight = (int) (bmp.getHeight()*w_ratio);
Bitmap scaledbmp = Bitmap.createScaledBitmap(bmp,scaledwidth,scaledheight,true);
switch(difficulty){
case 0:
for(int i=0;i<3;i++){
System.out.println("row no. "+i);
for(int j=0;j<3;j++){
System.out.println("Column no."+j);
int startx = (scaledwidth/3)*j;
int starty = (scaledheight/3)*i;
Bitmap b1 = Bitmap.createBitmap(scaledbmp,startx,starty,scaledwidth,scaledheight);
bs.add(b1);
b1 = null;
}
bmp = null;
}
break;
case 1:
for(int i=0;i<4;i++){
System.out.println("row no. "+i);
for(int j=0;j<4;j++){
System.out.println("Column no."+j);
int startx = (scaledwidth/4)*j;
int starty = (scaledheight/4)*i;
Bitmap b1 = Bitmap.createBitmap(bmp,startx,starty,scaledwidth,scaledheight);
bs.add(b1);
b1 = null;
}
bmp = null;
}
case 2:
for(int i=0;i<5;i++){
System.out.println("row no. "+i);
for(int j=0;j<5;j++){
System.out.println("Column no."+j);
int startx = (scaledwidth/5)*j;
int starty = (scaledheight/5)*i;
Bitmap b1 = Bitmap.createBitmap(bmp,startx,starty,scaledwidth,scaledheight);
bs.add(b1);
b1 = null;
}
bmp = null;
}
}
}
我认为Bitmap b1超出边界但我似乎没有看到为什么.....