關於 iphone app的 適配

實現了一個UIViewController的Category.

//
//  UIViewController+Adaptive.h
//  TestIOS7
//
//  Created by skychi on 14-1-14.
//  Copyright (c) 2014年 skychi. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface UIViewController (Adaptive)

-(void)extendEdgesLayout;
-(void)resetViewBounds;

@end

//
//  UIViewController+Adaptive.m
//  TestIOS7
//
//  Created by skychi on 14-1-14.
//  Copyright (c) 2014年 skychi. All rights reserved.
//

#import "UIViewController+Adaptive.h"

@implementation UIViewController (Adaptive)

-(void)extendEdgesLayout{
    if ([self respondsToSelector:@selector(setEdgesForExtendedLayout:)])
        self.edgesForExtendedLayout = UIRectEdgeNone ;
}

-(void)resetViewBounds{
    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) {
        self.view.bounds = CGRectMake(0, -20, self.view.frame.size.width, self.view.frame.size.height);
    }
}


@end

1.去掉Use AutoLayout.

2.在-(void)viewWillAppear:(BOOL)animated 中調用.

UINavigationBar存在時,              調用-(void)extendEdgesLayout;

UINavigationBar不存在時,            調用-(void)resetViewBounds;

UINavigationBar存在且隱藏時,         同時調用上述來兩個方法.

PS:有點Bug.如果UINavigationController存在且隱藏,並且子View爲UITableView時,UITableView的ContentSize高度小了大約20.待修正.