简单动画效果

快来打我* 2022-08-01 12:18 203阅读 0赞

//
    //  AnimationViewController.m
    //  AppUI组件学习
    //
    //  Created by 麦子 on 15/6/24.
    //  Copyright (c) 2015年 麦子. All rights reserved.
    //
    
    #import "AnimationViewController.h"
    
    @interface AnimationViewController (){
        UIView *view;
    
    }
    
    @end
    
    @implementation AnimationViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        self.title = @"动画学习";
        self.view.backgroundColor = [UIColor whiteColor];
        [self createView];
        
    }
    
    
    - (void)createView{
        view = [[UIView alloc] init];
        view.frame = CGRectMake(80, 80, 200, 100);
        view.backgroundColor = [UIColor redColor];
        [self.view addSubview:view];
        
        UIButton *btn = nil;
        for (int i = 0; i<3; i++) {
            btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
            if (i == 0) {
                [btn setTitle:@"移动" forState:UIControlStateNormal];
                btn.frame = CGRectMake(120, 300, 100, 50);
            }else if (i == 1) {
                [btn setTitle:@"缩放" forState:UIControlStateNormal];
                btn.frame = CGRectMake(120, 380, 100, 50);
            }else if (i == 2) {
                [btn setTitle:@"旋转" forState:UIControlStateNormal];
                btn.frame = CGRectMake(120, 450, 100, 50);
            }
            btn.tag = i;
            [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
            [self.view addSubview:btn];
        }
    }
    
    
    - (void)btnClick:(UIButton *)btn{
        
        switch (btn.tag) {
            case 0:{
                
                [UIView animateWithDuration:2 animations:^{
                    // 在原来的位置上加 50，  就是改变Frame的值，达到的效果显示。
                    view.transform = CGAffineTransformMakeTranslation(50, 50);
                    
                } completion:^(BOOL finished) {
                    
                }];            break;
            } case 1:{
                [UIView animateWithDuration:2 animations:^{
                    
                    view.transform = CGAffineTransformMakeScale(0.2, 0.2);
                    
                } completion:^(BOOL finished) {
                    
                }];
                
                
                break;
                
            } case 2:{
                
                [UIView animateWithDuration:2 animations:^{
                    
                    view.transform = CGAffineTransformMakeRotation(20*M_PI/180);
                    
                } completion:^(BOOL finished) {
                    
                }];
                
                
                break;
                
            }
            default:
                break;
        }
        
    }
    
    
    
    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        
    }
    
    
    
    @end