IPhone多视图切换
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处理IPhone多个view切换是我们常遇到的问题，接下来有个比较实用的方法：
而且还附有创建空项目,内存告急处理和动画效果的实现！
具体步骤：
1.创建一个空的项目，然后添加一个ViewController，勾选上with xib文件，点击到xib文件看看File's Owner属性是否是当前的ViewController,如果不是，手动填写一下，并将他的view属性拖向当前的view，view如果改成UIController，那么该view就具备事件
2.修改AppDelegate.h
@classDXWViewController;
@property (strong, nonatomic) DXWViewController *viewController;
3.修改AppDelegate.m
首先在dealloc中添加
[_viewControllerrelease];
接着是添加
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindowalloc] initWithFrame:[[UIScreenmainScreen] bounds]] autorelease];
self.viewController = [[[DXWViewControlleralloc] initWithNibName:@"DXWViewController"bundle:nil] autorelease];
self.window.rootViewController = self.viewController;
[self.windowmakeKeyAndVisible];
returnYES;
}
上面是讲从0开始创建一个启动项目，下面是做一个多视图切换的功能
4.截下来是创建三个ViewController，分别是RedViewController(主view)，YellowViewController，BlueViewController
主view下面是一个toolbar控件，其他两个view下面是在属性ButtonBar选择ToolBar实现
5.在主view中编码实现
ViewController.h:
#import <UIKit/UIKit.h>
#import "BlueViewController.h"
#import "YellowViewController.h"
@interface DXWViewController : UIViewController
@property(retain,nonatomic) BlueViewController *blueViewController;
@property(retain,nonatomic)YellowViewController *yellowViewController;
- (IBAction)blueClick:(id)sender;
- (IBAction)yellowClick:(id)sender;
- (IBAction)redClick:(id)sender;
- (IBAction)click:(id)sender; @end
ViewController.m:
#import "DXWViewController.h" @interface DXWViewController () @end @implementation DXWViewController - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
} - (void)viewDidLoad
{
[super viewDidLoad]; }
//如果内存警告，则调用这个方法，可以让你自己清掉一些不需要用的内存
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
NSLog(@"内存告急");
//如果内存警告则释放无用资源
if (self.blueViewController.view.superview != nil) {
[self.yellowViewController.view removeFromSuperview];
}
else if(self.yellowViewController.view.superview != nil){
[self.blueViewController.view removeFromSuperview];
}
}
- (IBAction)click:(id)sender {
// NSLog(@"hello");
[UIView beginAnimations:@"anim" context:nil];
//一个动画的持续时间
[UIView setAnimationDuration:1.5f];
//一个动画的运动随时间快慢曲线
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
//动画方式
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.view cache:YES];
//如果当前view的父view存在
if (self.blueViewController.view.superview != nil) {
//如果没创建则创建
if (self.yellowViewController == nil) {
self.yellowViewController = [[[YellowViewController alloc] initWithNibName:@"YellowViewController" bundle:nil] autorelease];
}
[self.blueViewController.view removeFromSuperview];
[self.view insertSubview:self.yellowViewController.view atIndex:10];
} else if (self.yellowViewController.view.superview != nil) {
[UIView beginAnimations:@"anim" context:nil];
//一个动画的持续时间
[UIView setAnimationDuration:2.5f];
//一个动画的运动随时间快慢曲线
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
//动画方式
[UIView setAnimationTransition:UIViewAnimationOptionTransitionCurlUp forView:self.view cache:YES];
//如果没创建则创建
if (self.blueViewController == nil) {
self.blueViewController = [[[BlueViewController alloc] initWithNibName:@"BlueViewController" bundle:nil] autorelease];
}
[self.yellowViewController.view removeFromSuperview];
[self.view insertSubview:self.blueViewController.view atIndex:10];
[UIView commitAnimations];
}
//动画效果启动
[UIView commitAnimations];
}
- (IBAction)blueClick:(id)sender {
NSLog(@"blue");
//[self.blueViewController.view removeFromSuperview];
self.blueViewController = [[[BlueViewController alloc] initWithNibName:@"BlueViewController" bundle:nil] autorelease];
[self.view insertSubview:self.blueViewController.view atIndex:10];
} - (IBAction)yellowClick:(id)sender {
NSLog(@"yellow");
//加上这句就可以红黄蓝任意点击
//[self.yellowViewController.view removeFromSuperview];
self.yellowViewController = [[[BlueViewController alloc] initWithNibName:@"YellowViewController" bundle:nil] autorelease];
[self.view insertSubview:self.yellowViewController.view atIndex:10];
}
//主视图控制器
- (IBAction)redClick:(id)sender {
NSLog(@"red");
[self.yellowViewController.view removeFromSuperview];
[self.blueViewController.view removeFromSuperview];
} @end
旋转效果
| 阿里云国内75折 回扣 微信号：monov8 |
| 阿里云国际，腾讯云国际，低至75折。AWS 93折 免费开户实名账号 代冲值 优惠多多 微信号：monov8 飞机：@monov6 |