IOS 在storyboard中建立按鈕，用程式碼控制按鈕
阿新 • • 發佈：2019-01-22
1.在工程中找到Main.storyboard檔案。
2.在Xcode右下角點選一個圓形的table標籤，並找到Button控制元件。
3.點選Xcode右上角，有個雙圓環的按鈕。
4.按住ctrl建，並用滑鼠左鍵點選按鈕，拖向ViewController.h檔案中，放開手並輸入相應的名稱。
這個時候在ViewController中就會多出來一個，你自己建的按鈕資訊，並和Main.storyboard中的按鈕關聯。
5.我們就可以操作這個按鈕。我在ViewController.m中的viewDidLoad中，可以改變按鈕不同狀態下顯示的內容，
在不同事件下的，操作。設定按鈕的背景色，按鈕上的文字顏色，按鈕上的字型大小，
置按鈕變成圓角，設定按鈕邊框的大小，這個設定按鈕邊框的顏色，設定陰影的顏色，
設定陰影的大小，設定陰影的透明度，等
程式碼如下：
// // ViewController.m // TestUI1 // // Created by Lioncraft on 5/9/15. // Copyright (c) 2015 Lioncraft. All rights reserved. // #import "ViewController.h" @interface ViewController () @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. [self.MyTestBtn setTitle:@"可以鬆手~" forState:UIControlStateHighlighted];//對於點選下，改變按鈕的文字內容 //forState總共有6種狀態 // UIControlStateNormal = 0, // UIControlStateHighlighted = 1 << 0, // used when UIControl isHighlighted is set // UIControlStateDisabled = 1 << 1, // UIControlStateSelected = 1 << 2, // flag usable by app (see below) // UIControlStateApplication = 0x00FF0000, // additional flags available for application use // UIControlStateReserved = 0xFF000000 // flags reserved for internal framework use [self.MyTestBtn addTarget:self action:@selector(myTestBtn:) forControlEvents:UIControlEventTouchUpInside]; /** *action:@selector 後面是要呼叫的函式 forControlEvents總共有19種事件 分別是： UIControlEventTouchDown = 1 << 0, // on all touch downs UIControlEventTouchDownRepeat = 1 << 1, // on multiple touchdowns (tap count > 1) UIControlEventTouchDragInside = 1 << 2, UIControlEventTouchDragOutside = 1 << 3, UIControlEventTouchDragEnter = 1 << 4, UIControlEventTouchDragExit = 1 << 5, UIControlEventTouchUpInside = 1 << 6, UIControlEventTouchUpOutside = 1 << 7, UIControlEventTouchCancel = 1 << 8, UIControlEventValueChanged = 1 << 12, // sliders, etc. UIControlEventEditingDidBegin = 1 << 16, // UITextField UIControlEventEditingChanged = 1 << 17, UIControlEventEditingDidEnd = 1 << 18, UIControlEventEditingDidEndOnExit = 1 << 19, // 'return key' ending editing UIControlEventAllTouchEvents = 0x00000FFF, // for touch events UIControlEventAllEditingEvents = 0x000F0000, // for UITextField UIControlEventApplicationReserved = 0x0F000000, // range available for application use UIControlEventSystemReserved = 0xF0000000, // range reserved for internal framework use UIControlEventAllEvents = 0xFFFFFFFF **/ //這個是設定按鈕的背景色 self.MyTestBtn.backgroundColor = [UIColor colorWithRed:1.00f green:0.0f blue:0.82f alpha:1.00f]; //這個是設定按鈕上文字的顏色 [self.MyTestBtn setTitleColor:[UIColor colorWithRed:0.00f green:1.0f blue:0.02f alpha:1.00f] forState:UIControlStateNormal]; //這個是設定按鈕上文字的大小 self.MyTestBtn.font = [UIFont boldSystemFontOfSize:12.0f]; //這個是設定按鈕變成圓角 self.MyTestBtn.layer.cornerRadius = 10; //這個是設定按鈕邊框的大小 self.MyTestBtn.layer.borderWidth = 3; //這個設定按鈕邊框的顏色 self.MyTestBtn.layer.borderColor = [UIColor blackColor].CGColor; //這個是設定陰影的顏色 self.MyTestBtn.layer.shadowColor = [UIColor yellowColor].CGColor; //這個是設定陰影的大小 self.MyTestBtn.layer.shadowOffset = CGSizeMake(5, 2); //這個是設定陰影的透明度 self.MyTestBtn.layer.shadowOpacity = 0.6; CGRect btnFrame = self.MyTestBtn.frame; //btnFrame.origin.y += 100; btnFrame.size.width = 100; btnFrame.size.height = 100; self.MyTestBtn.frame = btnFrame; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } //這個是彈出對話方塊的函式 -(void)myTestBtn:(UIButton *)sender{ UIAlertView *myAlertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"按鈕點選提示" delegate:self cancelButtonTitle:@"確定" otherButtonTitles: nil]; [myAlertView show]; } @end
6.最後，改變按鈕的大小和位置還有問題。