-2
我在视图中有一个NSMutableArray，我将一些JSON数据解析为表视图。我也有底部的三个按钮：按钮1，按钮2，按钮3.如果我选择按钮2，JSON数据字符串更改为链接2等...传递哪个按钮被按到另一个视图JSON
现在，当我点击一个单元格时，值（文本）传递给第二个视图控制器中的UITextView。但我想要的是也传递按下哪个按钮，所以UITextView的字符串名称解析正确。因为现在，当我选择例如按钮2并单击一个单元格时，第二个视图控制器上的文本视图变为空白，因为我只将字符串名称设置为@“message”，并且选择了文本时的字符串名称按钮2是@“鸣叫”。
这里是我的代码：
@interface DEMOSecondViewController()
@end
@implementation DEMOSecondViewController
@synthesize tableView = _tableView, activityIndicatorView = _activityIndicatorView;
@synthesize fontForCellText;
@synthesize btnFaceBook, btnTwitter, btnTwitter2;
@synthesize strURLToLoad;
@synthesize movies;
- (IBAction)showButtonMenu {
[self.frostedViewController presentMenuViewController];
}
- (void)refresh:(UIRefreshControl *)refreshControl {
[refreshControl endRefreshing];
}
-(UIStatusBarStyle)preferredStatusBarStyle{
return UIStatusBarStyleLightContent;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init];
[refreshControl setTintColor:[UIColor greenColor]];
[refreshControl addTarget:self action:@selector(refresh:) forControlEvents:UIControlEventValueChanged];
[self.tableView addSubview:refreshControl];
strURLToLoad = [[NSMutableString alloc] init];
[btnFaceBook setTitle:@"link-1.com/json.php" forState:UIControlStateDisabled];
[btnTwitter setTitle:@"link-2.com/json.php" forState:UIControlStateDisabled];
[btnTwitter2 setTitle:@"link-3.com/json.php" forState:UIControlStateDisabled];
[btnFaceBook setBackgroundImage:[UIImage imageNamed:@"tab_selected.png"] forState:UIControlStateNormal];
[btnFaceBook setBackgroundImage:[UIImage imageNamed:@"tab_unselected.png"] forState:UIControlStateSelected];
[btnTwitter setBackgroundImage:[UIImage imageNamed:@"tab_selected.png"] forState:UIControlStateNormal];
[btnTwitter setBackgroundImage:[UIImage imageNamed:@"tab_unselected.png"] forState:UIControlStateSelected];
[btnTwitter2 setBackgroundImage:[UIImage imageNamed:@"tab_selected.png"] forState:UIControlStateNormal];
[btnTwitter2 setBackgroundImage:[UIImage imageNamed:@"tab_unselected.png"] forState:UIControlStateSelected];
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"PostsObject" owner:self options:nil];
PostsObject *cell = [nib objectAtIndex:0];
fontForCellText = cell.title.font;
cellTextWidth = cell.title.frame.size.width;
cellHeightExceptText = cell.frame.size.height - cell.title.frame.size.height;
[self.navigationController setNavigationBarHidden:YES];
self.tableView.separatorColor = [UIColor clearColor];
// Setting Up Activity Indicator View
self.activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
self.activityIndicatorView.color = [UIColor greenColor];
self.activityIndicatorView.hidesWhenStopped = YES;
self.activityIndicatorView.center = self.view.center;
[self.view addSubview:self.activityIndicatorView];
[self.activityIndicatorView startAnimating];
self.tableView.separatorColor = [UIColor clearColor];
// Initializing Data Source
movies = [[NSMutableArray alloc] init];
[self btnFromTabBarClicked:btnFaceBook];
}
- (void)loadJSONFromCurrentURL
{
[self.activityIndicatorView startAnimating];
NSURLRequest *request = [[NSURLRequest alloc] initWithURL:[NSURL URLWithString:strURLToLoad]];
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
[movies setArray:JSON];
[self.activityIndicatorView stopAnimating];
[self.tableView reloadData];
} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
NSLog(@"Request Failed with Error: %@, %@", error, error.userInfo);
}];
[operation start];
}
//This is where I change the data source when selecting a button
- (IBAction)btnFromTabBarClicked:(UIButton *)sender
{
btnFaceBook.selected = btnTwitter.selected = btnTwitter2.selected = NO;
sender.selected = YES;
[strURLToLoad setString:[sender titleForState:UIControlStateDisabled]];
[self loadJSONFromCurrentURL];
}
// Table View Data Source Methods
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return movies.count;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
if(indexPath.row == 0) {
static NSString *Identifier1 = @"TableHeaderView";
TableHeaderView *cell = [tableView dequeueReusableCellWithIdentifier:Identifier1];
if (cell == nil) {
NSArray *nib= [[NSBundle mainBundle] loadNibNamed:@"TableHeaderView" owner:self options:nil];
cell = (TableHeaderView *)[nib objectAtIndex:0];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.backgroundColor = [UIColor clearColor];
return cell;
}
} else {
static NSString *Identifier2 = @"PostsObject";
PostsObject *cell = [tableView dequeueReusableCellWithIdentifier:Identifier2];
if (cell == nil) {
NSArray *nib= [[NSBundle mainBundle] loadNibNamed:@"PostsObject" owner:self options:nil];
cell = (PostsObject *)[nib objectAtIndex:0];
cell.backgroundColor = [UIColor clearColor];
}
NSDictionary *movie = [self.movies objectAtIndex:indexPath.row];
NSString *strText = [movie objectForKey:[self getTextKey]];
CGRect rect = cell.title.frame;
rect.size.height = [self getHeightForText:strText];
cell.title.frame = rect;
cell.title.text = strText;
cell.arrow.center = CGPointMake(cell.arrow.frame.origin.x, rect.origin.y + rect.size.height/2);
cell.published.text = [movie objectForKey:[self getPostedTime]];
cell.twitterName.text = [movie objectForKey:[self getTwitterName]];
return cell;
}
return 0;
}
//Here I am passing the selected cell data to (PostsNextView). I want to pass the string values of button 1, button 2 and button 3. How?
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSDictionary *movie = [self.movies objectAtIndex:indexPath.row];
PostsNextView *newView = [[PostsNextView alloc] init];
newView.theMovie = movie;
[self.navigationController pushViewController:newView animated:YES];
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
if(indexPath.row == 0) {
return 224;
} else {
NSDictionary *movie = [self.movies objectAtIndex:indexPath.row];
NSString *strText = [movie objectForKey:[self getTextKey]];
CGFloat cellHeight = cellHeightExceptText + [self getHeightForText:strText];
return cellHeight;
}
}
- (NSString *)getTextKey
{
return [email protected]"tweet":@"message";
}
- (NSString *)getPostedTime
{
return [email protected]"posted":@"published";
}
- (NSString *)getTwitterName
{
return [email protected]"user":@"celebname";
}
- (CGFloat)getHeightForText:(NSString *)strText
{
CGSize constraintSize = CGSizeMake(cellTextWidth, MAXFLOAT);
CGSize labelSize = [strText sizeWithFont:fontForCellText constrainedToSize:constraintSize lineBreakMode:NSLineBreakByWordWrapping];
NSLog(@"labelSize.height = %f",labelSize.height);
return labelSize.height;
}
@end
正如你在第一种观点看，我有我解析3个不同的链接。如何在PostsNextView的viewDidLoad中设置if语句？比如，如果选择了btnFacebook：textView.text = [theMovie objectForKey：@“message”];如果选择了btnTwitter：textView.text = [theMovie objectForKey：@“tweet”]; ？
真的很感谢解决方案！
[视图控制器之间传递数据]（http://stackoverflow.com/questions/5210535/passing-data-between-view-controllers） – CoolMonster