2.通过模态的形式推出视图，不需要依赖于导航控制器,通过使用present到下一个界面，通过dismiss返回到上一个界面
如何选择使用哪种视图的推出方法？
秘诀:看视图之间的依赖关系
1.当下一个页面要展示的数据依赖于上一个界面使用push
"ContactListTableViewController.h"
#import
"AddContactViewController.h"
#import
"DetailContactController.h"
#import
"CustomCell.h"
"Contacter.h"
(void)viewDidLoad
{
[super
viewDidLoad];
[self
configureNavigatinControllerBarContent];
}
//配置导航条的内容
- (void)configureNavigatinControllerBarContent{
//设置title
self.navigationItem.title
=
@"通讯录";
//设置左边添加联系人按钮
UIBarButtonItem
*leftItem =
[[UIBarButtonItem
alloc]initWithImage:[UIImage
imageNamed:@"add_contact"]style:(UIBarButtonItemStylePlain)
target:self
action:@selector(handleAdd:
)];
self.navigationItem.leftBarButtonItem
=
leftItem;
//配置导航条的背景颜色
self.navigationController.navigationBar.barTintColor
=
[UIColor
orangeColor];
//配置导航条内容的颜色
self.navigationController.navigationBar.tintColor
=
[UIColor
whiteColor];
//修改title的字体颜色
NSDictionary
*dic =
@{NSForegroundColorAttributeName
:
[UIColor
whiteColor]};
self.navigationController.navigationBar.titleTextAttributes
=
dic;
//右侧导航条为编辑按钮
self.navigationItem.rightBarButtonItem
=
self.editButtonItem;
#pragma mark
添加联系人按钮的方法
-
(void)handleAdd:
(UIBarButtonItem
*)leftItem{
NSLog(@"添加联系人");
//当前一个界面要展示的数据，依赖于后一个界面时，此时使用模态的形式推出视图，模态：是一种新的视图推出方式
//先创建要推出的试图控制器对象
AddContactViewController
*addVC
=[[AddContactViewController
alloc]init];
//给模态出来的视图控制添加导航控制器
UINavigationController
*navogationVC
= [[UINavigationController
alloc]initWithRootViewController:addVC];
//配置模态出现的样式
navogationVC.modalTransitionStyle
=
UIModalTransitionStyleFlipHorizontal;
//UIModalTransitionStyleCoverVertical
= 0,
//UIModalTransitionStyleFlipHorizontal,
//UIModalTransitionStyleCrossDissolve,
//UIModalTransitionStylePartialCurl
//模态不依赖于导航控制器，所以不需要拿到导航控制器
[self
presentViewController:navogationVC
animated:YES
completion:^{
//推出视图之后要做的一些操作，可以写在这里
}];
[addVC release];
}
- (void)didReceiveMemoryWarning
{
[super
didReceiveMemoryWarning];
//
Dispose of any resources that can be recreated.
}
#pragma mark - Table view data
source
(NSInteger)numberOfSectionsInTableView:(UITableView
*)tableView
{
return
10;
}
(NSInteger)tableView:(UITableView
*)tableView
numberOfRowsInSection:(NSInteger)section
{
return
10;
(UITableViewCell
*)tableView:(UITableView
*)tableView
cellForRowAtIndexPath:(NSIndexPath
*)indexPath
{
NSString
*idntifer
= @"cell";
CustomCell
*cell =
[tableView dequeueReusableCellWithIdentifier:idntifer];
if
(cell
== nil)
{
cell = [[CustomCell
alloc]initWithStyle:(UITableViewCellStyleValue1)
reuseIdentifier:idntifer];
}
//准备一个字典，使用给Model对象赋值
NSDictionary
*dic =
@{@"name":@"小韩哥",@"gender'":@"女",@"age":@"18",@"says":@"我爱编程",@"phone":@"7788521",@"imageName":@"1.png"};
//给model类赋值Contecter
Contacter
*contacter =
[[Contacter
alloc]init];
contacter.name
=
dic[@"name"];
//使用KVC赋值
[contacter setValuesForKeysWithDictionary:dic];
cell.photoView.image
=
contacter.image;
cell.nameLabel.text
=
contacter.name;
cell.phoneLabel.text
=
contacter.phone;
NSLog(@"%@-
%@-%@-%@-%@-%@",contacter.name,contacter.age,contacter.gender,contacter.phone,contacter.says,contacter.image);//打印看是否取到Model数据的value值
return
cell;
}
#pragma mark
点击cell触发事件
-
(void)tableView:(UITableView
*)tableView
didSelectRowAtIndexPath:(NSIndexPath
*)indexPath{
DetailContactController
*detailVC =
[[DetailContactController
alloc]init];
[self.navigationController
pushViewController:detailVC
animated:YES];
[detailVC release];
}
//通过代理返回cell的行高
- (CGFloat)tableView:(UITableView
*)tableView
heightForRowAtIndexPath:(NSIndexPath
*)indexPath{
return
90;
"AddContactViewController.h"
#import
"CustomView.h"
@interface
AddContactViewController
()<</span>UIActionSheetDelegate,UIImagePickerControllerDelegate,UINavigationControllerDelegate>
*aview;
@implementation
AddContactViewController
- (void)dealloc{
self.aview
=
nil;
[super
dealloc];
}
- (void)loadView{
self.aview
=
[[CustomView
alloc]initWithFrame:[UIScreen
mainScreen].bounds];
self.view
=
self.aview;
[self.aview
release];
(void)viewDidLoad
{
[super
viewDidLoad];
self.view.backgroundColor
=
[UIColor
cyanColor];
[self
configureNavigationBarContent];
//调用手势方法
[self
addTapGesture];
}
//给aImageView
视图添加轻拍手势
- (void)addTapGesture{
UITapGestureRecognizer
*tap =
[[UITapGestureRecognizer
alloc]initWithTarget:self
action:@selector(handleTap
: )];
[self.aview.aImageView
addGestureRecognizer:tap];
[tap release];
//实现轻拍手势的方法
- (void)handleTap
: (UITapGestureRecognizer
*)tap{
//添加ActionSheet控件
提示选项框
UIActionSheet
*actionSheet =
[[UIActionSheet
alloc]initWithTitle:nil
delegate:self
cancelButtonTitle:@"取消"
destructiveButtonTitle:@"拍照"
otherButtonTitles:@"从手机中选择",
nil];
//在当前界面显示actionSheet对象
[actionSheet showInView:self.view];
[actionSheet release];
*)actionSheet
clickeonAtIndex:(NSInteger)buttonIndex{
switch
(buttonIndex)
{
case
0:
//拍照
NSLog(@"拍照");
[self
pickerPictureFromCamera];
break;
case
1:
//从相册中读取照片
NSLog(@"从相册中读取照片");
[self
pickerPictureFormPhotoAlbum];
break;
default:
break;
}
}
//拍照
- (void)pickerPictureFromCamera{
//判断前摄像头是否可以使用
BOOL
isCameera =
[UIImagePickerController
isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceFront];
//
UIImagePickerControllerCameraDeviceFront
前摄像头
//
UIImagePickerControllerCameraDeviceRear
//后摄像头
if
(!isCameera)
{
NSLog(@"没有摄像头可以使用");
return;
}
//初始化图片选择控制器对象
UIImagePickerController
*imagePicker =
[[UIImagePickerController
alloc]init];
//设置图片选择器选取图片的样式
imagePicker.sourceType
=
UIImagePickerControllerSourceTypePhotoLibrary;
//设置取出来的图片是否允许编辑
imagePicker.allowsEditing
=
YES;
//设置代理
imagePicker.delegate
=
self;
必须同时遵循UIImagePickerControllerDelegate,UINavigationControllerDelegate
两个协议
//把手机相机推出来
[self
presentViewController:imagePicker
animated:YES
completion:nil];
[imagePicker release];
}
- (void)pickerPictureFormPhotoAlbum{
UIImagePickerController
*imagePicker =
[[UIImagePickerController
alloc]init];
//设置图片格式
imagePicker.sourceType
=
UIImagePickerControllerSourceTypePhotoLibrary;
//设置允许编辑
imagePicker.allowsEditing
=
YES;
//设置代理
imagePicker.delegate
=
self;
[self
presentViewController:imagePicker
animated:YES
completion:nil];
[imagePicker release];
(void)imagePickerController:(UIImagePickerController
*)picker
didFinishPickingMediaWithInfo:(NSDictionary
*)info{
//从字典中取出编辑的key值，对应的照片
self.aview.aImageView.image
=
[info objectForKey:UIImagePickerControllerEditedImage];
//自己推出来的自己收回去
[self
dismissViewControllerAnimated:YES
completion:nil];
- (void)configureNavigationBarContent{
self.navigationItem.title
=
@"添加联系人";
//配置导航条背景颜色
self.navigationController.navigationBar.barTintColor
=
[UIColor
orangeColor];
//配置内容页的渲染颜色
self.navigationController.navigationBar.tintColor
=
[UIColor
whiteColor];
//配置字体颜色
NSDictionary
*dic =
@{NSForegroundColorAttributeName
:
[UIColor
whiteColor]};
self.navigationController.navigationBar.titleTextAttributes
=
dic;
//左侧取消按钮
UIBarButtonItem
*leftItem =
[[UIBarButtonItem
alloc]initWithImage:[UIImage
imageNamed:@"clsose"]
style:(UIBarButtonItemStylePlain)
target:self
action:@selector(hanlBack
: )];
self.navigationItem.leftBarButtonItem
=
leftItem;
//释放
[leftItem release];
//右侧保存按钮
UIBarButtonItem
*rightItem =
[[UIBarButtonItem
alloc]initWithImage:[UIImage
imageNamed:@"doneR"]
style:(UIBarButtonItemStylePlain)
target:self
action:@selector(handleSave
: )];
self.navigationItem.rightBarButtonItem
=
rightItem;
#pragma mark
取消按钮的实现
-
(void)hanlBack
: (UIBarButtonItem
*)item{
//返回上一级界面
[self
dismissViewControllerAnimated:YES
completion:nil];
}
#pragma mark
保存按钮的实现
-
(void)handleSave
: (UIBarButtonItem
*)item{
//保存数据操作
//保存数据后同样返回上一个界面
[self
dismissViewControllerAnimated:YES
completion:nil];
"DetailContactController.h"
#import
"CustomView.h"
@interface
DetailContactController
()<</span>UIActionSheetDelegate,UINavigationControllerDelegate,UIImagePickerControllerDelegate>
@property(nonatomic,retain)CustomView
*aView;
DetailContactController
- (void)dealloc{
self.aView
=
nil;
[super
dealloc];
(void)loadView{
self.aView
=
[[CustomView
alloc]initWithFrame:[UIScreen
mainScreen].bounds];
self.view
=
self.aView;
[self.aView
release];
的交互事件方法
- (void)closeUserInteractionByBool
: (BOOL)isTure{
//根据传进来的参数决定self.aView交互是否打开
self.aView.userInteractionEnabled
= isTure;
(void)viewDidLoad
{
[super
viewDidLoad];
self.view.backgroundColor
=
[UIColor
whiteColor];
//配置导航条的内容
[self
configureNavigationBarContent];
//进来详情页面先不能编辑
[self
closeUserInteractionByBool:NO];
//调用添加手势的方法
[self
addTapGesture];
//添加aImageView添加轻拍手势
- (void)addTapGesture{
UITapGestureRecognizer
*tap =
[[UITapGestureRecognizer
alloc]initWithTarget:self
action:@selector(handleTap
: )];
[self.aView.aImageView
addGestureRecognizer:tap];
[tap
release];
}
//实现轻拍手势的方法
- (void)handleTap
: (UITapGestureRecognizer
*)tap{
UIActionSheet
*actionSheet =
[[UIActionSheet
alloc]initWithTitle:nil
delegate:self
cancelButtonTitle:@"取消"
destructiveButtonTitle:@"拍照"
otherButtonTitles:@"从手机中选择",
nil];
//当前界面显示actionSheet对象
[actionSheet showInView:self.view];
[actionSheet release];
}
- (void)actionSheet:(UIActionSheet
*)actionSheet
clickeonAtIndex:(NSInteger)buttonIndex{
switch
(buttonIndex)
{
case
0:
[self
pickerPictureFromCamera];
NSLog(@"没有摄像头可以使用");
break;
case
1:
[self
pickerPictureFromPhotoAlbum];
break;
default:
break;
}
}
//配置导航条的内容
- (void)configureNavigationBarContent{
self.navigationItem.title
=
@"详情";
//左侧配置编辑按钮
UIBarButtonItem
*leftItem =
[[UIBarButtonItem
alloc]initWithImage:[UIImage
imageNamed:@"btn_backItem"]
style:(UIBarButtonItemStylePlain)
target:self
action:@selector(handleBack:)];
self.navigationItem.leftBarButtonItem
=
leftItem;
[leftItem release];
//配置右侧按钮
self.navigationItem.rightBarButtonItem
=
self.editButtonItem;
//拍照
- (void)pickerPictureFromCamera{
//判断前摄像头是否可以使用
BOOL
isCamera =
[UIImagePickerController
isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceFront];
if
(!isCamera)
{
return;
}
//初始化图片是选择器对象
UIImagePickerController
*imagePicker =
[[UIImagePickerController
alloc]init];
//设置图片选择器选取图片的样式
imagePicker.sourceType
=
UIImagePickerControllerSourceTypePhotoLibrary;
//设置取出来的图片是否允许编辑
imagePicker.allowsEditing
= YES;
//设置代理
imagePicker.delegate
=
self;
//把手机相机推出来
[self
presentViewController:imagePicker
animated:YES
completion:nil];
[imagePicker release];
//从相册中取相片
- (void)pickerPictureFromPhotoAlbum{
UIImagePickerController
*imagePicker =
[[UIImagePickerController
alloc]init];
//设置图片格式
imagePicker.sourceType
=
UIImagePickerControllerSourceTypePhotoLibrary;
//设置是否允许编辑
imagePicker.allowsEditing
=
YES;
//设置代理
imagePicker.delegate
=
self;
[self
presentViewController:imagePicker
animated:YES
completion:nil];
}
- (void)imagePickerController:(UIImagePickerController
*)picker
didFinishPickingMediaWithInfo:(NSDictionary
*)info{
//从字典中取出编辑的key值，对应的照片
self.aView.aImageView.image
=
[info objectForKey:UIImagePickerControllerEditedImage];
//自己推出来自己收回去
[self
dismissViewControllerAnimated:YES
completion:nil];
重写编辑按钮的方法
(void)setEditing:(BOOL)editing
animated:(BOOL)animated{
[super
setEditing:editing
animated:animated];
//调用交互的方法
//editing ==
YES 可以编辑 editing == NO
不可以编辑
[self
closeUserInteractionByBool:editing];
- (void)handleBack:
(UIBarButtonItem
*)back{
//保存数据的方法
//返回上一个界面
[self.navigationController
popViewControllerAnimated:YES];
自定义cell和自定义视图布局不做详细介绍！
*photoView;
@property(nonatomic,retain)UILabel
*nameLabel;
*phoneLabel;
(id)initWithStyle:(UITableViewCellStyle)style
reuseIdentifier:(NSString
*)reuseIdentifier{
if
(self
=
[super
initWithStyle:style
reuseIdentifier:reuseIdentifier])
{
//布局操作写在这里
[self.contentView
addSubview:self.photoView];
[self.contentView
addSubview:self.nameLabel];
[self.contentView
addSubview:self.phoneLabel];
}
return
self;
(UIImageView
*)photoView{
if
(_photoView
==
nil)
{
self.photoView
=
[[[UIImageView
alloc]initWithFrame:CGRectMake(10,
5,
80,
80)]autorelease];
self.photoView.layer.cornerRadius
=
40.0;
self.photoView.layer.masksToBounds
=
YES;
self.photoView.backgroundColor
=
[UIColor
brownColor];
}
//添加安全机制
return
[[_photoView
retain]autorelease];
注意：系统提供的持有对象有时也会crash所以retain再release更安全！
(UILabel
*)nameLabel{
if
(_nameLabel
==
nil)
{
self.nameLabel
=
[[[UILabel
alloc]initWithFrame:CGRectMake(100,
18,
100,
25)]autorelease];
self.nameLabel.backgroundColor
=
[UIColor
brownColor];
self.nameLabel.layer.cornerRadius
=
7;
self.nameLabel.layer.masksToBounds
=
YES;
}
return
[[_nameLabel
retain]autorelease];
}
- (UILabel
*)phoneLabel{
if
(_phoneLabel
==
nil)
{
self.phoneLabel
=
[[[UILabel
alloc]initWithFrame:CGRectMake(100,
48,
160,
25)]autorelease];
self.phoneLabel.backgroundColor
=
[UIColor
brownColor];
self.phoneLabel.layer.cornerRadius
=
7;
self.phoneLabel.layer.masksToBounds
=
YES;
}
return
[[_phoneLabel
retain]autorelease];