Parse.com通过URL添加图像 [英] Parse.com adding images via URL
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问题描述
我只是想问一下如何通过URl将一些图像添加到我的Parse TableView中。我坚持下去了。我用自定义单元格制作了它。标签效果很好。加入imageview可以帮我吗?
谢谢米兰
I just wanted to ask how to add to my Parse TableView via URl some images. I`m stuck with it. I made it with custom cells. Labels works good.Can you help me please with adding imageview? Thanks Milan
TableViewController.h
> #import <UIKit/UIKit.h>
> #import "Parse/Parse.h"
> #import "CustomCell.h"
>
> @interface TableViewController : UITableViewController
> <UITableViewDelegate,UISearchDisplayDelegate, UISearchBarDelegate> {
>
> NSArray *colorsArray;
> NSArray *searchResults;
> }
>
> @property (strong, nonatomic) IBOutlet UITableView *colorsTable;
>
>
>
> @end
TableViewController.m
TableViewController.m
@interface TableViewController ()
@end
@implementation TableViewController
@synthesize colorsTable;
- (void) retrieveFromParse {
PFQuery *retrieveColors = [PFQuery queryWithClassName:@"Hracky1"];
[retrieveColors findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
colorsArray = [[NSArray alloc] initWithArray:objects];
}
[colorsTable reloadData];
}];
[self.colorsTable reloadData];
[self.refreshControl endRefreshing];
}
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self performSelector:@selector(retrieveFromParse)];
UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init];
self.refreshControl = refreshControl;
[refreshControl addTarget:self action:@selector(retrieveFromParse)
forControlEvents:UIControlEventValueChanged];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return colorsArray.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"colorsCell";
CustomCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
PFObject *tempObject = [colorsArray objectAtIndex:indexPath.row];
[cell.imageview setFile: [tempObject objectForKey:@"ImageURL"]];
[cell.imageview loadInBackground];
cell.cellTitle.text = [tempObject objectForKey:@"cellTitle"];
cell.cellDescript.text = [tempObject objectForKey:@"cellDescript"];
return cell;
}
@end
CustomCell.h
CustomCell.h
#import <UIKit/UIKit.h>
#import "Parse/Parse.h"
@interface CustomCell : UITableViewCell
@property (strong, nonatomic) IBOutlet UILabel *cellTitle;
@property (strong, nonatomic) IBOutlet UILabel *cellDescript;
@property (strong, nonatomic) IBOutlet PFImageView *imageview;
@end
CustomCell.m
CustomCell.m
#import "CustomCell.h"
@implementation CustomCell
@synthesize cellTitle;
@synthesize cellDescript;
@synthesize imageview;
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// Initialization code
}
return self;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
@end
推荐答案
使用 PFImageView
解析以显示图像文件(PFILE)。将 UIImageView
更改为 PFImageVIew
如果您有 xib
文件,更改您的课程。
Parse using PFImageView
for display a image file(PFile). Change your UIImageView
to PFImageVIew
if you have xib
file, change your class.
@property (strong, nonatomic) IBOutlet PFImageView *imageview;
在 cellForRow
:
[cell.imageview setFile: [tempObject objectForKey:@"ImageURL"]];
[cell.imageview loadInBackground];
这篇关于Parse.com通过URL添加图像的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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