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  • ios中base64编码

    参考文章:其中文章的:http://blog.csdn.net/ztp800201/article/details/9470065
    下载包
    其中 包括GTMBase包下载地址 http://pan.baidu.com/share/link?shareid=928474681&uk=923776187
    #import "ViewController.h" #import "GTMBase64.h" @interface ViewController (){ } @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; } #pragma mark -GTMBas4 64编码 - (IBAction)codeclick:(id)sender { [self codeImg]; } - (IBAction)encodeClick:(id)sender { [self DecodeImg]; } #pragma mark -文字编码 -(void)TextCode{ NSString *str=@"Hello world"; NSData *Data=[str dataUsingEncoding:NSUTF8StringEncoding]; //进行编码 Data =[GTMBase64 encodeData:Data]; NSString *codestr=[[[NSString alloc] initWithData:Data encoding:NSUTF8StringEncoding] autorelease]; self.lbMessage.text=codestr; } #pragma mark -图片编码 -(void)codeImg{ NSString *path=[[NSBundle mainBundle] pathForResource:@"school_back" ofType:@"png"]; UIImage *img= [UIImage imageWithContentsOfFile:path]; NSData *data=UIImageJPEGRepresentation(img, 1.0);//UIImageJPEGRepresentation返回图片较小,但是清晰度模糊 // NSData *data=UIImagePNGRepresentation(img);//UIImagePNGRepresentation图片大,清晰 data= [GTMBase64 encodeData:data]; NSLog(@"-->%@",[[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] autorelease]); self.lbMessage.text=[[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] autorelease]; } //========================== #pragma mark -文字解码 -(void)TextDecode{ NSString *codeStr=self.lbMessage.text; NSData *data=[codeStr dataUsingEncoding:NSUTF8StringEncoding]; data= [GTMBase64 decodeData:data]; self.lbMessage.text=[[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] autorelease]; } #pragma mark -图片解码 -(void)DecodeImg{ NSString *codestr=self.lbMessage.text; NSData *data=[codestr dataUsingEncoding:NSUTF8StringEncoding]; data=[GTMBase64 decodeData:data]; UIImage *ima=[UIImage imageWithData:data]; self.img.image=ima; } - (void)dealloc { [_lbMessage release]; [_img release]; [super dealloc]; } @end
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  • 原文地址:https://www.cnblogs.com/gcb999/p/3277295.html
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