[ iOS ] 儲存檔案

儲存檔案

//下載完成時存檔
NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:@"Library/ooxx.png"];
            
            [fileData writeToFile:path atomically:YES];

判斷檔案存在直接顯示,否則就開始下載

NSFileManager *fmng = [NSFileManager defaultManager];
    //印出路徑可以從資料夾中查看
    NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:@"Library/ooxx.png"];
    
    if ([fmng fileExistsAtPath:path]) {
        
        NSData *imgData = [NSData dataWithContentsOfFile:path];
        imgv.image = [[UIImage alloc] initWithData:imgData];
        
    } else {
        //下載檔案
        [self getData];
    }