- (void)downFileFromServerWithUrlString:(NSString *)urlString{
NSURL *URL = [NSURL URLWithString:urlString];
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
//AFN3.0+基于封住URLSession的句柄
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];
//请求
NSURLRequest *request = [NSURLRequest requestWithURL:URL];
//下载Task操作
_downloadTask = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {
// @property int64_t totalUnitCount; 需要下载文件的总大小
// @property int64_t completedUnitCount; 当前已经下载的大小
// 回到主队列刷新UI
dispatch_async(dispatch_get_main_queue(), ^{
[HUD showAnimated:YES whileExecutingBlock:^{
HUD.progress = 1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount;
} completionBlock:^{
}];
});
} destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {
//- block的返回值, 要求返回一个URL, 返回的这个URL就是文件的位置的路径
NSString *cachesPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];
NSString *path = [cachesPath stringByAppendingPathComponent:response.suggestedFilename];
return [NSURL fileURLWithPath:path];
} completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {
// filePath就是你下载文件的位置，你可以解压，也可以直接拿来使用
//下载完成走这个block
if (!error)
{
[HUD removeFromSuperview];
HUD = nil;
//如果请求没有错误(请求成功), 则打印地址
// NSLog(@"%@", filePath);
// NSLog(@"%@",filePath.path);
NSData *data = [NSData dataWithContentsOfURL:filePath];
NSArray *arr = [_downloadTask.response.suggestedFilename componentsSeparatedByString:@"."];
NSString *behindStr = [NSString stringWithFormat:@"%@.%@",STR_OBJ([_wordArr objectAtIndex:_index][@"name"]),STR_OBJ([arr lastObject])];
NSLog(@"%@",_downloadTask.response.suggestedFilename);
//获取数据写入文件 写入文件需要注意每次app启动沙盒路径都是动态变化的 如果要做数据库存储不能直接存储完整的文件路径 只需要存储自己设定的表示字段 再每次获取时再动态获取完整路径
[self writeToFileWithData:data WithFileName:behindStr];
}else{
[GlobelModel showTipToView:self.view andTipText:error.localizedDescription];
}
// NSString *imgFilePath = [filePath path];// 将NSURL转成NSString
//
// NSLog(@"%@",imgFilePath);
}];
}
#pragma mark 将数据写入文件
- (void)writeToFileWithData:(NSData *)data WithFileName:(NSString *)fileName{
//此处首先指定了图片存取路径（默认写到应用程序沙盒 中）
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
//并给文件起个文件名
NSString *path=[[paths objectAtIndex:0] stringByAppendingPathComponent:fileName];
NSLog(@"%@",path);
BOOL isSuccess = [data writeToFile:path atomically:NO];
if (isSuccess) {
//写入成功 存入数据库
NSDictionary *dic = [_wordArr objectAtIndex:_index];//对于的数据源
NSInteger idIndex = [dic[@"id"] integerValue];
//插入数据
BOOL isSuccess = [[MySqlite sharedInstance].database executeUpdate:@"INSERT INTO WordList (uid, path) VALUES (?,?);",@(idIndex),fileName];
if (isSuccess) {
//插入成功 刷新tableview
[_ruleSearchTableView reloadRowsAtIndexPaths:@[[NSIndexPath indexPathForRow:_index inSection:0]] withRowAnimation:UITableViewRowAnimationFade];
}
}
}
