OBjective-c UIView 動畫

//

//  ViewController.m

//  動畫

//

//  Created by DC017 on 15/12/31.

//  Copyright © 2015年 DC017. All rights reserved.

//

#import "ViewController.h"

@interface ViewController ()

{

    UIView * view1;

    UIView * view2;

    int i;

}

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    i=0;

    [self layout];

    

}

-(void)layout{

    view1=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 375, 200)];

    view1.backgroundColor=[UIColor orangeColor];

    [self.view addSubview:view1];

  

    

    view2=[[UIView alloc]initWithFrame:CGRectMake(0, 467, 375, 200)];

    view2.backgroundColor=[UIColor orangeColor];

    [self.view addSubview:view2];

    UIButton * button=[[UIButton alloc]initWithFrame:CGRectMake(375/2.0-30, 330, 60, 20)];

    

   

    [button setTitle:@"動畫" forState:UIControlStateNormal];

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

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

    [self.view addSubview:button];

 

    UILabel * label1=[[UILabel alloc]initWithFrame:CGRectMake(375/2.0-50,100 , 100, 20)];

    label1.textColor=[UIColor redColor];

    label1.text=@"哈哈!!!!";

    [view1 addSubview:label1];

    

    UILabel * label2=[[UILabel alloc]initWithFrame:CGRectMake(375/2.0-50,100 , 100, 20)];

    label2.textColor=[UIColor redColor];

    label2.text=@"呵呵!!!!";

    [view2 addSubview:label2];

}

-(void)donghua{

   

    if (i==0) {

        [UIView beginAnimations:@"move" context:nil];

        [UIView setAnimationDuration:2];

        [UIView setAnimationDelegate:self];

        //改變它的frame的x,y的值

        view1.frame=CGRectMake(0,-200, 375,200);

        view2.frame=CGRectMake(0, 667, 375, 200);

        [UIView commitAnimations];

        i=1;

    }else if (i==1){

        [UIView beginAnimations:@"move" context:nil];

        [UIView setAnimationDuration:2];

        [UIView setAnimationDelegate:self];

        //改變它的frame的x,y的值

        view1.frame=CGRectMake(0,0, 375,200);

        view2.frame=CGRectMake(0, 467, 375, 200);

        [UIView commitAnimations];

        i=0;

    }

   

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end