iOS -UI-视图创建及动画的实现

最新推荐文章于 2025-07-03 08:00:00 发布

Jeyzq

最新推荐文章于 2025-07-03 08:00:00 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/jzq_sir/article/details/47090733

本文介绍了一个 iOS 应用的 UI 动画实现案例，包括按钮点击反馈、图片移动和透明度变化等效果。通过定时器触发动画，演示了不同组件在交互中的视觉表现。

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// ViewController.m

// UI-视图练习

// Created by jzq_mac on 15/7/23.

#import "ViewController.h"

@interface ViewController ()

{

UIButton *button;

UILabel *label;

UITextField *textFiled;

}

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

self.view.backgroundColor = [UIColor blackColor];

[NSTimer scheduledTimerWithTimeInterval:4 target:self selector:@selector(moveAction) userInfo:nil repeats:YES];

// UIButton 练习

button = [UIButton buttonWithType:UIButtonTypeCustom];

button.frame = CGRectMake(150, 567, 100, 100);

[self.view addSubview:button];

button.layer.cornerRadius = 50;

button.backgroundColor = [UIColor blueColor];

// [button setTitle:@"点我啊" forState:UIControlStateNormal];

[button setTitle:@"点我干嘛" forState:UIControlStateSelected];

button.showsTouchWhenHighlighted = YES;

[button setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

button.titleLabel.font = [UIFont systemFontOfSize:20];

button.clipsToBounds = YES;

button.contentMode = YES;

button.alpha = 0.8;

[button setTitleShadowColor:[UIColor yellowColor] forState:UIControlStateNormal];

[button setBackgroundImage:[UIImage imageNamed:@"苹果"] forState:UIControlStateNormal];

[button addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];

// UIlabel 练习

label = [[UILabel alloc]initWithFrame:CGRectMake(170, 70, 50, 500)];

[self.view addSubview:label];

label.backgroundColor = [UIColor redColor];

label.text = @"梦想还是要有的万一实现了呢";

label.layer.cornerRadius = 50;

label.layer.masksToBounds = YES;

label.textColor = [UIColor yellowColor];

label.textAlignment = NSTextAlignmentCenter;

label.font = [UIFont systemFontOfSize:30];

label.numberOfLines = 50;

for (int i = 0; i < 2; i ++) {

UIImageView *imgeView = [[UIImageView alloc]initWithFrame:CGRectMake(20 + (240 + 20)*i, 587, 80, 80)];

[self.view addSubview:imgeView];

imgeView.backgroundColor = [UIColor redColor];

imgeView.layer.cornerRadius = 40;

imgeView.layer.masksToBounds = YES;

imgeView.image = [UIImage imageNamed:@"苹果1"];

imgeView.tag = i + 100;

}

textFiled = [[UITextField alloc]initWithFrame:CGRectMake(0, 0, 375, 50)];

textFiled.delegate = self;

[self.view addSubview:textFiled];

textFiled.backgroundColor = [UIColor grayColor];

textFiled.placeholder = @"欢迎来到星际穿越";

textFiled.textAlignment = NSTextAlignmentCenter;

textFiled.font = [UIFont systemFontOfSize:30];

textFiled.returnKeyType = UIReturnKeyDefault;

UIImageView *left = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 50, 50)];

left.image = [UIImage imageNamed:@"拳头"];

textFiled.leftView = left;

textFiled.leftViewMode = UITextFieldViewModeAlways;

textFiled.alpha = 0.5;

}

- (void)textFieldDidBeginEditing:(UITextField *)textField

{

}

- (void)textFieldDidEndEditing:(UITextField *)textField

{

}

- (BOOL)textFieldShouldReturn:(UITextField *)textField

{

[textFiled resignFirstResponder];

return YES;

}

- (void)moveAction

{

// 图片移动练习

[UIView animateWithDuration:2 animations:^{button.frame = CGRectMake(150, 0, 100, 100);} completion:^(BOOL finished){[UIView animateWithDuration:2 animations:^{button.frame = CGRectMake(150, 567, 100, 100);}];}];

for (int i =0; i<2; i++) {

UIImageView *imgeView = (UIImageView *)[self.view viewWithTag:i+100];

if (imgeView.tag == 100) {

imgeView.alpha = 1;