iOS archive保存图片到本地的方法

本文实例为大家分享了ios保存图片到本地的具体代码，供大家参考，具体内容如下

一、工程图

二、代码

rootviewcontroller.h

#import <uikit/uikit.h>

@interface rootviewcontroller : uiviewcontroller
{
 uiimageview *imageview;
}
@end

rootviewcontroller.m

#import "rootviewcontroller.h"

@interface rootviewcontroller ()

@end

@implementation rootviewcontroller

- (id)initwithnibname:(nsstring *)nibnameornil bundle:(nsbundle *)nibbundleornil
{
 self = [super initwithnibname:nibnameornil bundle:nibbundleornil];
 if (self) {
  // custom initialization
 }
 return self;
}

- (void)viewdidload
{
 [super viewdidload];
 // do any additional setup after loading the view.
 
 //初始化背景图
 imageview=[[uiimageview alloc]initwithframe:cgrectmake(100, 100, 100, 100)];
 imageview.backgroundcolor=[uicolor redcolor];
 [self.view addsubview:imageview];
 
 //将图片保存
 [self archive];
 
 //提取保存在本地的图片
 [self unarchive];
 

}
#pragma -mark -functions
//归档
-(void)archive
{
 nsdata *data=[nskeyedarchiver archiveddatawithrootobject:[uiimage imagenamed:@"1.jpg"]];
 nsuserdefaults *imagedefault = [nsuserdefaults standarduserdefaults];
 [imagedefault setobject:data forkey:@"image"];
 [imagedefault synchronize];

}
//反归档
-(void)unarchive
{
 nsdata* data = [[nsuserdefaults standarduserdefaults]objectforkey:@"image"];
 id image= [nskeyedunarchiver unarchiveobjectwithdata:data];
 imageview.image=image;
 

}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。