Swift UI special training 43 Swift APP boot page, swiftui
When an APP is loaded for the first time, a boot page is usually used to show features or tell users how to use them. Open our Storyboard, import a Page View Controller, make the following settings, and modify the Transition Style:
Set the storyboard ID to PageViewController for our Page View Controller.
Now you should want to know how we can edit o
) { if motion = = Uieventsubtype.motionshake { var alertController1 = Uialertcontroller (title: "Congratulations.) It worked. ", Message:nil, Preferredstyle:. Alert) var cancelaction = uialertaction (title: "Cancel", Style:.) Cancel, Handler:nil) alertcontroller1.addaction (cancelaction) Self.presentviewcontroller ( AlertController1, Animated:true, Completion:nil) } }This method is inferred at the end of motion, assuming that moti
ImageView is a component we often use, but we find that there is no design for picture borders in the property editor of storyboard. Add a normal picture to the view, the effect is this:Can see, the white background of the dark picture, the effect is always a little abrupt, we want to add a shadow border to transition a piece and background, open the picture belongs to the controller code, the class is displayed in the picture named image, now to set its border. Enter the following code in Viewd
With the slider corresponding to the stepper micro-control, sometimes we need to precisely change, then we can not use the slider to do, stepper each time with a fixed value to increase or decrease, its setting is more similar to the slider than:There is also the minimum and current value of the maximum value, the difference is that the step value, which is the fixed value when we add and subtract, is called a step. It behaves in three ways:AutoRepeat is press and hold auto repeatContinuous is a
In the view, let's take a look at the contents of the view:1. Implementation of the view: the base class of the view is UIView2. Mode of view: Size fill mode, that is, when the size exceeds the value we set to take what is appropriate for the screen fill.3.Tag: Mark Serial numberBehavior of the View:There are interactions and drawings, interaction is the user's actions, you can choose whether to use interactive and multi-touch control.The drawing includes transparency, visibility, clear image co
new restaurants, set two buttons in the navigation bar, a "done", and a "cancel". Next, click the plus sign in the first scene to jump to the second scene. Like the way we wired before, we need to control-drag a line from the plus sign to the second scene in the Navigationcontroller, which shows the following options, which represent different transitions, such as direct display, pop-up, and so on, select, show. Run to see if you can achieve the transition by clicking on "+". If you delete the
(Tableview:uitableview, Numberofrowsinsection section:int), Int { //#warning Incomplet E method implementation. Return the number of the rows in the section. Return Restaurantlist.count }The above method is used to specify the number of rows of the table, we return the number of elements of the array, there are many settings method name is TableView, but the parameters are different, people choose their own needs. Usually the format of each row of cells is the same, so w
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