使用FBGraph API共享图像不起作用

Question

我使用下面的代码在fb wall上分享图片：

NSData *imageData = UIImageJPEGRepresentation(self.selectedImage, 10);
NSMutableDictionary* variables = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"your caption message", @"message", imageData, @"data", nil];
FbGraphResponse *fb_graph_response = [[sharedSingleton fbGraph] doGraphPost:@"me/photos" withPostVars:variables];
NSLog(@"postMeFeedButtonPressed:  %@", fb_graph_response.htmlResponse);

但是当我尝试分享时，应用程序正在崩溃。 指导我解决这个问题

Answer 1

尝试此代码.....

- （IBAction）postPictureButtonPressed：（id）sender {

NSMutableDictionary *variables = [NSMutableDictionary dictionaryWithCapacity:2];

//create a UIImage (you could use the picture album or camera too)
UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 20, 240, 240)];
[imgView setImage:[UIImage imageNamed:@"app1.jpg"]];
[self.view addSubview:imgView];
[imgView release];


UIImage *tempimag=imgView.image;

//UIImage *picture = [UIImage imageNamed:@"75x75.png"];

//create a FbGraphFile object insance and set the picture we wish to publish on it
FbGraphFile *graph_file = [[FbGraphFile alloc] initWithImage:tempimag];

NSLog(@"img posted");


//finally, set the FbGraphFileobject onto our variables dictionary....
[variables setObject:graph_file forKey:@"file"];

[variables setObject:@"this is a test message: postPictureButtonPressed" forKey:@"message"];

//the fbGraph object is smart enough to recognize the binary image data inside the FbGraphFile
//object and treat that is such.....
FbGraphResponse *fb_graph_response = [fbGraph doGraphPost:@"117795728310/photos" withPostVars:variables];
NSLog(@"postPictureButtonPressed:  %@", fb_graph_response.htmlResponse);


NSLog(@"Now log into Facebook and look at your profile & photo albums...");

}

Answer 2

// JSON示例

.H FILE

NSMutableArray * arrRespone;

NSMutableDictionary *resultsDictionary;

.M FILE

define kBgQueue dispatch_get_global_queue（DISPATCH_QUEUE_PRIORITY_DEFAULT，0）// 1

定义kLatestKivaLoansURL [NSURL URLWithString：@＆＃34; http://www.indiaglitz.com/json/vod_menu_init.asp＆＃34;]

// how can print array json values into uitableview in iphone

import＆＃34; ViewController.h＆＃34;

@interface ViewController（）

@end

@implementation ViewController

@synthesize tableView1;

• （无效）viewDidLoad中

{

arrRespone = [NSMutableArray new];

practice_ArrayForDisplayingEx=[[NSArray alloc]initWithObjects:@"bhupi",@"bhupi",@"bhupi",@"bhupi",nil];


dispatch_async(kBgQueue, ^

{

NSData * dataURL = [NSData dataWithContentsOfURL：kLatestKivaLoansURL];         [self performSelectorOnMainThread：@selector（fetchedData :) withObject：dataURL waitUntilDone：YES];     }）;

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

}

• （void）fetchedData：（NSData *）responseData {

  NSError *错误;

  resultsDictionary = [NSJSONSerialization JSONObjectWithData：responseData // 1                                                     选项：kNilOptions                                                       误差：＆安培;错误];

  NSDictionary * arrDetails = [[resultsDictionary objectForKey：@＆＃34; menu＆＃34;] objectAtIndex：0]; NSDictionary * genr = [[arrDetails valueForKey：@＆＃34; categories＆＃34;] objectAtIndex：0];

  NSLog（@＆＃34; array detailsarray ====＆gt;％@＆＃34;，arrDetails）; NSLog（@＆＃34; genreee arrray ==％@＆＃34;，genr）; // NSLog（@＆＃34; genrvalueeee -----％@＆＃34;，[genr valueForKey：@＆＃34; genre＆＃34;]）;

  NSLog（@＆＃34; counttttt ===％d＆＃34;，[[genr valueForKey：@＆＃34; genre＆＃34;] count]）; NSLog（@＆＃34;流派objectatindex ==％@＆＃34;，[genr valueForKey：@＆＃34; cliptype＆＃34;]）;

  for（int i = 0; i＆lt; [[genr valueForKey：@＆＃34; genre＆＃34;] count]; i ++） {

  NSDictionary *strDetails=[[genr valueForKey:@"genre"] objectAtIndex:i];
  NSString *str=[strDetails valueForKey:@"gname"];
  NSLog(@"First string details===>%@",str);
  
  
  [arrRespone addObject:str];
  
  NSLog(@"response ====>%@",arrRespone);
  

  } [tableView1 reloadData]; }

pragma mark表视图方法

• （NSInteger）numberOfSectionsInTableView：（UITableView *）tableView {

  的NSLog（@＆＃34; numberOfSectionsInTableView＆＃34）;

  返回1; }

• （CGFloat）tableView：（UITableView *）tableView heightForRowAtIndexPath：（NSIndexPath *）indexPath { 返回45;

  的NSLog（@＆＃34; heightForRowAtIndexPath＆＃34）;

}

//自定义表视图中的行数。 - （NSInteger）tableView：（UITableView *）tableView numberOfRowsInSection：（NSInteger）section {     的NSLog（@＆＃34; numberOfRowsInSection＆＃34）;

return [arrRespone count]; }

• （void）tableView：（UITableView *）tableView didSelectRowAtIndexPath：（NSIndexPath *）indexPath {

}

• （UITableViewCell *）tableView：（UITableView *）tableView cellForRowAtIndexPath：（NSIndexPath *）indexPath {

  NSLog（@＆＃34;在tableview内部＆＃34;）; static NSString * CellIdentifier = @＆＃34; TableCell＆＃34 ;;

  // TableCell * cell =（TableCell *）[tableView dequeueReusableCellWithIdentifier：CellIdentifier]; UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier：CellIdentifier];

  if（cell == nil）{

  cell = [[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier];
  

  } // cell.textLabel.text = [arrRespone objectAtIndex：indexPath.row];

  的NSLog（@＆＃34; cellvalue：％@＆＃34;，cell.textLabel.text）; NSLog（@＆＃34;在numberofRowsInsection＆＃34;内;）; //配置单元格......   cell.textLabel.text = [arrRespone objectAtIndex：indexPath.row];

  返回单元格;

}

• （无效）didReceiveMemoryWarning { [super didReceiveMemoryWarning]; //处理可以重新创建的任何资源。 }

@end