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iOS的Widget类似Android的Notification设置flags为Notification.FLAG_ONGOING_EVENT后
OK,大约知道是什么意思了,现在可以开始码了.
1.创建Widget
Xcode菜单 -> File -> New -> Target.. -> 选择Today Extension
2.在plist文件里设置纯代码的Widget
删掉NSExtensionMainStoryboard字段
添加NSExtensionPrincipalClass字段,设置value为TodayViewController,当然也可以设置其他的ViewController
3.运行的时候选择Today
4.添加一些控件看看效果- - (void)viewDidLoad {
- [super viewDidLoad];
-
- //添加一个button,点击button后改变背景的颜色
- UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
- [button setTitle:@"点击一下" forState:UIControlStateNormal];
- button.backgroundColor = [UIColor whiteColor];
- [button addTarget:self action:@selector(clickAction) forControlEvents:UIControlEventTouchUpInside];
- button.frame = CGRectMake(50, 10, 100, 30);
- [self.view addSubview:button];
-
- }
- - (void)clickAction{
- self.view.backgroundColor = [UIColor redColor];
- }
复制代码 效果如图
看效果图你会发现,左边还空了一大块,原因是Widget默认会有一个inset,重写下面的方法就好了- -(UIEdgeInsets)widgetMarginInsetsForProposedMarginInsets:(UIEdgeInsets)defaultMarginInsets {
- return UIEdgeInsetsZero;
- }
复制代码 最终的效果如下:
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