1.在工程中找到Main.storyboard文件。
2.在Xcode右下角點擊一個圓形的table標籤，並找到Button控件。
3.點擊Xcode右上角，有個雙圓環的按鈕。
4.按住ctrl建，並用鼠標左鍵點擊按鈕，拖向ViewController.h文件中，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，你自己建的按鈕信息，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。設置按鈕的背景色，按鈕上的文字顏色，按鈕上的字體大小，
置按鈕變成圓角，設置按鈕邊框的大小，這個設置按鈕邊框的顏色，設置陰影的顏色，
設置陰影的大小，設置陰影的透明度，等
代碼如下：
//
// 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];//對於點擊下，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 後面是要調用的函數
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
**/
//這個是設置按鈕的背景色
self.MyTestBtn.backgroundColor = [UIColor colorWithRed:1.00f green:0.0f blue:0.82f alpha:1.00f];
//這個是設置按鈕上文字的顏色
[self.MyTestBtn setTitleColor:[UIColor colorWithRed:0.00f green:1.0f blue:0.02f alpha:1.00f] forState:UIControlStateNormal];
//這個是設置按鈕上文字的大小
self.MyTestBtn.font = [UIFont boldSystemFontOfSize:12.0f];
//這個是設置按鈕變成圓角
self.MyTestBtn.layer.cornerRadius = 10;
//這個是設置按鈕邊框的大小
self.MyTestBtn.layer.borderWidth = 3;
//這個設置按鈕邊框的顏色
self.MyTestBtn.layer.borderColor = [UIColor blackColor].CGColor;
//這個是設置陰影的顏色
self.MyTestBtn.layer.shadowColor = [UIColor yellowColor].CGColor;
//這個是設置陰影的大小
self.MyTestBtn.layer.shadowOffset = CGSizeMake(5, 2);
//這個是設置陰影的透明度
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.
}
//這個是彈出對話框的函數
-(void)myTestBtn:(UIButton *)sender{
UIAlertView *myAlertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"按鈕點擊提示" 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。