<span style="font-size:12px;"> </span><span style="font-size:14px;">UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(40, 60, 100, 60)];</span>
<span style="font-size:14px;">
button.backgroundColor = [UIColor orangeColor];</span><span style="font-size:14px;">
button.enabled = NO;</span><span style="font-size:14px;">
[button addTarget:self action:@selector(onButton) forControlEvents:UIControlEventTouchUpInside];</span><span style="font-size:14px;">
[self.view addSubview:button];</span><span style="font-size:14px;"> }</span>
<span style="font-size:14px;">
- (void)onButton{</span><span style="font-size:14px;">
NSLog(@"button被点击");
}</span><span style="font-size:18px;">
</span><span style="font-size:14px;">//不会有输出结果,因为button的事件被禁用。</span>BOOL selected;
1.UIControlContentVerticalAlignmentCenter
2.UIControlContentVerticalAlignmentTop
3.UIControlContentVerticalAlignmentBottom
4.UIControlContentVerticalAlignmentFill
1.UIControlContentHorizontalAlignmentCenter
2.UIControlContentHorizontalAlignmentLeft
3.UIControlContentHorizontalAlignmentRight
4.UIControlContentHorizontalAlignmentFill
<span style="font-size: 24px;"> </span><span style="font-size:18px;">button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;//控件在水平方向的布局位置</span>
<span style="font-size:18px;"> button.contentVerticalAlignment = UIControlContentVerticalAlignmentBottom;//控件在垂直方向的布局位置</span>
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原文地址:http://blog.csdn.net/wow09_1225/article/details/46761881