iOS实现row行column列个按钮的添加

注释要添加的按钮的总个数为total 
-(void)addScrollAndButton{

int  COLUMN=4;//列数

int total = self.listArray.count;

//int rows = (total / COLUMN) + ((total % COLUMN) > 0 ? 1 : 0);

int btnwidth=50;

int btnheight=30;

int widthblank=20;

int heightblank=20;

for (int i=0; i<total; i++) {

int row = i / COLUMN;//行数

int column = i % COLUMN;//列数

//添加按钮

UIButton *aButton=[UIButton buttonWithType:UIButtonTypeCustom];

aButton.frame=CGRectMake((widthblank+btnwidth)*column, (heightblank+btnheight)*row, btnwidth, btnheight);

aButton.tag=1000+i;

[aButton setTitle:[[[self.listArray objectAtIndex:i]objectForKey:@"Table"]objectForKey:@"Title"] forState:UIControlStateNormal];

[aButton setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];

[aButton setShowsTouchWhenHighlighted:YES];//按的时候设置高亮

[aButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:aButton];

}

}

-(void)buttonPressed:(id)sender

{

UIButton * button = (UIButton *)sender;

int index=button.tag-1000;

}