//九宫格算法。
/*
计算步骤
1，确定每个app的宽和高
2，计算marginX，marginY， marginTop
3，计算每个app所在的行索引和列索引
4，根据当前app的行索引和列索引计算appX和appY
*/
-(void)scratchableLatexAlgorithm{
NSString *path = [[NSBundle mainBundle]pathForResource:@"plist文件名" ofType:nil];
NSArray *array = [NSArray arrayWithContentsOfFile:path];
//获取页面view的宽度
CGFloat viewWidth = self.view.frame.size.width;
//假设每行的应用个数
int columns = 3;
//每个应用的宽和高
CGFloat appW = 75;
CGFloat appH = 90;
CGFloat marginTop = 30;
CGFloat marginX = (viewWidth - appW * columns)/(columns + 1);
CGFloat marginY = marginX;
for (int i=0; i<array.count; i++) {
UIView *view = [[UIView alloc]init];
//计算每个单元格所在的列索引
int colIndx = i%columns;
//计算每个单元格所在的行索引
int rowIdx = i/columns;
CGFloat appX = marginX + colIndx * (appW + marginX);
CGFloat appY = marginTop + rowIdx * (appH + marginY);
view.frame = CGRectMake(appX, appY, appW, appH);
[self.view addSubview:view];
}
}
