#import "YYAppDelegate.h"

#import "YYViewController.h"

@implementation YYAppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    // Override point for customization after application launch.

    self.window.backgroundColor = [UIColor whiteColor];

    self.window.rootViewController = [[YYViewController alloc] initWithNibName:nil bundle:nil];

    [self.window makeKeyAndVisible];

    return YES;

}

 //

 //  YYViewController.m

 //  UIBasic060701_Button

 //

 //  Created by yao_yu on 14-6-7.

 //  Copyright (c) 2014年 yao_yu. All rights reserved.

 //

 #import "YYViewController.h"

 @interface YYViewController ()

 @property(nonatomic, strong) UIView *viewMoveBlock;

 @end

 @implementation YYViewController

 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil

 {

     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

     if (self) {

         // Custom initialization

     }

     return self;

 }

 - (void)viewDidLoad

 {

     [super viewDidLoad];

     self.viewMoveBlock = [[UIView alloc] init];

     [self.viewMoveBlock setBackgroundColor:[UIColor blueColor]];

     self.viewMoveBlock.frame = CGRectMake(, , , );

     [self.view addSubview: self.viewMoveBlock];

     UIView *commandPane = [[UIView alloc] initWithFrame:CGRectMake(, , , )];

     [self.view addSubview:commandPane];

     const CGFloat BUTTONSIZE = ;

     UIButton *buttonLeft = [UIButton buttonWithType:UIButtonTypeRoundedRect];

     [buttonLeft setTitle:@"左移" forState:UIControlStateNormal];

     buttonLeft.frame = CGRectMake(, , BUTTONSIZE, BUTTONSIZE);

     [commandPane addSubview: buttonLeft];

     [buttonLeft addTarget:self action:@selector(moveLeft) forControlEvents:UIControlEventTouchUpInside];

     UIButton *buttonRight = [UIButton buttonWithType:UIButtonTypeRoundedRect];

     [buttonRight setTitle:@"右移" forState:UIControlStateNormal];

     buttonRight.frame = CGRectMake(BUTTONSIZE, , BUTTONSIZE, BUTTONSIZE);

     [commandPane addSubview: buttonRight];

     [buttonRight addTarget:self action:@selector(moveRight) forControlEvents:UIControlEventTouchUpInside];

     UIButton *buttonUp = [UIButton buttonWithType:UIButtonTypeRoundedRect];

     [buttonUp setTitle:@"上移" forState:UIControlStateNormal];

     buttonUp.frame = CGRectMake(BUTTONSIZE*, , BUTTONSIZE, BUTTONSIZE);

     [commandPane addSubview: buttonUp];

     [buttonUp addTarget:self action:@selector(moveUp) forControlEvents:UIControlEventTouchUpInside];

     UIButton *buttonDown = [UIButton buttonWithType:UIButtonTypeRoundedRect];

     [buttonDown setTitle:@"下移" forState:UIControlStateNormal];

     buttonDown.frame = CGRectMake(BUTTONSIZE*, , BUTTONSIZE, BUTTONSIZE);

     [commandPane addSubview: buttonDown];

     [buttonDown addTarget:self action:@selector(moveDown) forControlEvents:UIControlEventTouchUpInside];

     UIButton *buttonZoomOut = [UIButton buttonWithType:UIButtonTypeRoundedRect];

     [buttonZoomOut setTitle:@"放大" forState:UIControlStateNormal];

     buttonZoomOut.frame = CGRectMake(BUTTONSIZE*, , BUTTONSIZE, BUTTONSIZE);

     [commandPane addSubview: buttonZoomOut];

     [buttonZoomOut addTarget:self action:@selector(zoomOut) forControlEvents:UIControlEventTouchUpInside];

     UIButton *buttonZoomIn = [UIButton buttonWithType:UIButtonTypeRoundedRect];

     [buttonZoomIn setTitle:@"缩小" forState:UIControlStateNormal];

     buttonZoomIn.frame = CGRectMake(BUTTONSIZE*, , BUTTONSIZE, BUTTONSIZE);

     [commandPane addSubview: buttonZoomIn];

     [buttonZoomIn addTarget:self action:@selector(zoomIn) forControlEvents:UIControlEventTouchUpInside];

     [commandPane setTranslatesAutoresizingMaskIntoConstraints:NO];

     [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"[commandPane(260)]" options: metrics: views:NSDictionaryOfVariableBindings(commandPane)]];

     [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-[commandPane(50)]" options: metrics: views:NSDictionaryOfVariableBindings(commandPane)]];

     [self.view addConstraint:[NSLayoutConstraint constraintWithItem:commandPane attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual toItem:self.view attribute:NSLayoutAttributeCenterX multiplier:1.0f constant:0.0f]];

     NSDictionary *metrics = [NSDictionary dictionaryWithObjectsAndKeys:@, @"SIZE", nil];

     NSDictionary *contraitsView = NSDictionaryOfVariableBindings(buttonLeft, buttonRight, buttonUp, buttonDown, buttonZoomOut, buttonZoomIn);

     for (NSString *buttonKey in contraitsView ) {

         [contraitsView[buttonKey] setTranslatesAutoresizingMaskIntoConstraints:NO];

         [commandPane addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:[NSString stringWithFormat:@"V:|[%@(SIZE)]", buttonKey] options: metrics:metrics views:contraitsView]];

     }

     [commandPane addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[buttonLeft(SIZE)][buttonRight(SIZE)][buttonUp(SIZE)][buttonDown(SIZE)]-(>=0)-[buttonZoomOut(SIZE)][buttonZoomIn(SIZE)]|" options: metrics:metrics views: contraitsView]];

 }

 -(void)moveLeft

 {

     [self moveX: - Y:];

 }

 -(void)moveRight

 {

     [self moveX:  Y:];

 }

 -(void)moveUp

 {

     [self moveX:  Y:-];

 }

 -(void)moveDown

 {

     [self moveX:  Y:];

 }

 -(void)zoomOut

 {

     CGRect rect = self.viewMoveBlock.frame;

     rect.origin.x -= ;

     rect.origin.y -= ;

     rect.size.width += ;

     rect.size.height += ;

     [UIView beginAnimations:nil context:nil];

     [UIView setAnimationDuration:1.0];

     self.viewMoveBlock.frame = rect;

     [UIView commitAnimations];

 }

 -(void)zoomIn

 {

     CGRect rect = self.viewMoveBlock.frame;

     rect.origin.x += ;

     rect.origin.y += ;

     rect.size.width -= ;

     rect.size.height -= ;

     [UIView beginAnimations:nil context:nil];

     [UIView setAnimationDuration:1.0];

     self.viewMoveBlock.frame = rect;

     [UIView commitAnimations];

 }

 -(void)moveX: (int)x Y:(int)y

 {

     CGPoint p = self.viewMoveBlock.center;

     p.x += x;

     p.y += y;

     [UIView beginAnimations:nil context:nil];

     [UIView setAnimationDuration:1.0];

     self.viewMoveBlock.center = p;

     [UIView commitAnimations];

 }

 - (void)didReceiveMemoryWarning

 {

     [super didReceiveMemoryWarning];

     // Dispose of any resources that can be recreated.

 }

 /*

 #pragma mark - Navigation

 // In a storyboard-based application, you will often want to do a little preparation before navigation

 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender

 {

     // Get the new view controller using [segue destinationViewController].

     // Pass the selected object to the new view controller.

 }

 */

 @end