#import "AppDelegate.h"
#import "ViewController.h"
@interface AppDelegate ()

@end

@implementation AppDelegate


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

 self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
 ViewController * vc = [[ViewController alloc] init];
//必須要初始化導航控制器的根控制器
 UINavigationController * nav = [[UINavigationController alloc] initWithRootViewController:vc];
 self.window.rootViewController = nav;
 [self.window makeKeyAndVisible];
 return YES;
}

//
// ViewController.m
// PBSliedMenu
//
// Created by 裴波波 on 16/4/21.
// Copyright © 2016年 裴波波. All rights reserved.
//

#import "ViewController.h"
#define kScreenH [UIScreen mainScreen].bounds.size.height
#define kScreenW [UIScreen mainScreen].bounds.size.width
#define kNavW 64
@interface ViewController ()<UITableViewDelegate,UITableViewDataSource>

@property (nonatomic, strong) UITableView *tableView;
/** 記錄是否打開側邊欄 */
@property (nonatomic, assign) BOOL openSlide;
/** 側欄按鈕 */
@property (nonatomic, strong) UIBarButtonItem *btnLeft;

@end

@implementation ViewController

#pragma mark - 選中某個cell代理方法
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

 UITableViewCell * cell = [tableView cellForRowAtIndexPath:indexPath];
 NSLog(@"%@",cell.textLabel.text);
 //選中cell后立即取消選中
 [tableView deselectRowAtIndexPath:indexPath animated:YES];
}


#pragma mark - tableView數據源
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
 
 return 20;
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
 static NSString * ID = @"cell";
 UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:ID forIndexPath:indexPath];
 cell.textLabel.text = [NSString stringWithFormat:@"我是%zd",indexPath.row];
 cell.backgroundColor = [UIColor orangeColor];
 return cell;
}

- (void)viewDidLoad {
 
 [super viewDidLoad];
 self.view.backgroundColor = [UIColor whiteColor];
 [self initLeftBarButton];
 //注冊cell
 [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"];
}

#pragma mark - 初始化側欄按鈕
-(void)initLeftBarButton{
 
 UIButton * btnLeft = [[UIButton alloc] init];
 btnLeft.frame = CGRectMake(0, 0, 90, 40);
 [btnLeft setTitle:@"側欄" forState:UIControlStateNormal];
 [btnLeft setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
 [btnLeft addTarget:self action:@selector(didLeftBtn) forControlEvents:UIControlEventTouchUpInside];
 self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:btnLeft];
 self.btnLeft = self.navigationItem.leftBarButtonItem;
}

#pragma mark - 懶加載tableView
-(UITableView *)tableView{
 
 if (_tableView == nil) {
 _tableView = [[UITableView alloc] init];
 _tableView.delegate = self;
 _tableView.dataSource = self;
 _tableView.backgroundColor = [UIColor orangeColor];
 //第一次點擊tableView從左上角彈出,優(yōu)化方案--先創(chuàng)建出tableView
 CGFloat hight = kScreenH;
 CGFloat x = 0;
 CGFloat y = kNavW;
 CGFloat width = 0;
 _tableView.frame = CGRectMake(x, y, width, hight);
 //取消顯示豎直滾動條
 _tableView.showsVerticalScrollIndicator = NO;
 }
 return _tableView;
}

#pragma mark - 點擊側欄按鈕彈出tableView
-(void)didLeftBtn{
 
 //禁用button等待動畫執(zhí)行完畢再啟用button
 self.btnLeft.enabled = NO;
 CGFloat hight = kScreenH;
 CGFloat x = 0;
 CGFloat y = kNavW;
 if (!self.openSlide) {
 //添加動畫
 [UIView animateWithDuration:0.3 animations:^{
  CGFloat width = kScreenW / 3;
  self.tableView.frame = CGRectMake(x, y, width, hight);
 }];
 [self.view addSubview:self.tableView];
 } else {
 [UIView animateWithDuration:0.3 animations:^{
  CGFloat width = 0;
  self.tableView.frame = CGRectMake(x, y, width, hight);
 }];
 }
 //執(zhí)行完畢動畫 取消禁用button
 [self performSelector:@selector(setBtnLeftEnabled) withObject:nil afterDelay:0.3];
 //監(jiān)視側欄是否打開
 if (self.openSlide == YES) {
 self.openSlide = NO;
 } else {
 self.openSlide = YES;
 }
}

//不用反復創(chuàng)建tableView
//#pragma mark - 移除tableView
//-(void)removeSliedView{
//
// [self.tableView removeFromSuperview];
// self.btnLeft.enabled = YES;
//}
#pragma mark - 動畫執(zhí)行完畢啟用"側欄"按鈕
-(void)setBtnLeftEnabled{
 
 self.btnLeft.enabled = YES;
 //動畫執(zhí)行完畢讓第一個cell顯示在最頂端
 self.tableView.contentOffset = CGPointMake(0, 0);
}


- (void)didReceiveMemoryWarning {
 [super didReceiveMemoryWarning];
 // Dispose of any resources that can be recreated.
}

@end