简单的存储和读取本地图片适用于用户头像代码,Objectc代码库,德仔网

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【Objectc】简单的存储和读取本地图片适用于用户头像

作者:智睿 / 发布于2016/3/15/ 900

iOS 简单的存储和读取本地图片适用于用户头像 - (BOOL)writeToFile:(NSString *)path atomically:(BOOL)useAuxiliaryFile;

//存储图片到本地沙盒
+ (void)saveImage:(UIImage *)image{
    NSString *documentDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndexWithCheck:0];
    NSString *imageName = [NSString stringWithFormat:@"%@HeadImage",[USERDEFAULT objectForKey:USERNAME]];
    NSString *filePath = [[documentDirectory stringByAppendingPathComponent:@"HeadImages"] stringByAppendingString:imageName];
    NSData *data = UIImageJPEGRepresentation(image, 0.1);
    [data writeToFile:filePath atomically:YES];
}
//获取本地沙盒存储的图片
+ (UIImage *)loadImage{
    NSString *documentDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndexWithCheck:0];
    NSString *imageName = [NSString stringWithFormat:@"%@HeadImage",[USERDEFAULT objectForKey:USERNAME]];
    NSString *filePath = [[documentDirectory stringByAppendingPathComponent:@"HeadImages"] stringByAppendingString:imageName];
    NSFileManager *fm = [NSFileManager defaultManager];
    if ([fm fileExistsAtPath:filePath]) {
        NSData * data = [NSData dataWithContentsOfFile:filePath];
        UIImage *image = [UIImage imageWithData:data];
        return image;
    }
    return nil;
}

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