我是一个新的iOS开发人员，当我为Recipes制作项目时，我遇到了这个问题，我需要从每个单元转到一个单独的视图控制器，每个视图控制器都有一个图像数组，它显示为UIPageViewController。
这是我在第一个视图控制器上调用的数组（RecipeViewController）
- (void)viewDidLoad
{
[super viewDidLoad];
// Initialize table data
Recipe *recipe1 = [Recipe new];
recipe1.name = @"Egg Benedict";
recipe1.prepTime = @"30 min";
recipe1.imageFile = @"egg_benedict.jpg";
recipe1.ingredients = [NSArray arrayWithObjects:@"2 fresh English muffins", @"4 eggs", @"4 rashers of back bacon", @"2 egg yolks", @"1 tbsp of lemon juice", @"125 g of butter", @"salt and pepper", nil];
Recipe *recipe2 = [Recipe new];
recipe2.name = @"Mushroom Risotto";
recipe2.prepTime = @"30 min";
recipe2.imageFile = @"mushroom_risotto.jpg";
recipe2.ingredients = [NSArray arrayWithObjects:@"1 tbsp dried porcini mushrooms", @"2 tbsp olive oil", @"1 onion, chopped", @"2 garlic cloves", @"350g/12oz arborio rice", @"1.2 litres/2 pints hot vegetable stock", @"salt and pepper", @"25g/1oz butter", nil];
Recipe *recipe3 = [Recipe new];
recipe3.name = @"Full Breakfast";
recipe3.prepTime = @"20 min";
recipe3.imageFile = @"full_breakfast.jpg";
recipe3.ingredients = [NSArray arrayWithObjects:@"2 sausages", @"100 grams of mushrooms", @"2 rashers of bacon", @"2 eggs", @"150 grams of baked beans", @"Vegetable oil", nil];
Recipe *recipe4 = [Recipe new];
recipe4.name = @"Hamburger";
recipe4.prepTime = @"30 min";
recipe4.imageFile = @"hamburger.jpg";
recipe4.ingredients = [NSArray arrayWithObjects:@"400g of ground beef", @"1/4 onion (minced)", @"1 tbsp butter", @"hamburger bun", @"1 teaspoon dry mustard", @"Salt and pepper", nil];
Recipe *recipe5 = [Recipe new];
recipe5.name = @"Ham and Egg Sandwich";
recipe5.prepTime = @"10 min";
recipe5.imageFile = @"ham_and_egg_sandwich.jpg";
recipe5.ingredients = [NSArray arrayWithObjects:@"1 unsliced loaf (1 pound) French bread", @"4 tablespoons butter", @"2 tablespoons mayonnaise", @"8 thin slices deli ham", @"1 large tomato, sliced", @"1 small onion", @"8 eggs", @"8 slices cheddar cheese", nil];
Recipe *recipe6 = [Recipe new];
recipe6.name = @"Creme Brelee";
recipe6.prepTime = @"1 hour";
recipe6.imageFile = @"creme_brelee.jpg";
recipe6.ingredients = [NSArray arrayWithObjects:@"1 quart heavy cream", @"1 vanilla bean, split and scraped", @"1 cup vanilla sugar", @"6 large egg yolks", @"2 quarts hot water", nil];
Recipe *recipe7 = [Recipe new];
recipe7.name = @"White Chocolate Donut";
recipe7.prepTime = @"45 min";
recipe7.imageFile = @"white_chocolate_donut.jpg";
recipe7.ingredients = [NSArray arrayWithObjects:@"3 1/4 cups flour", @"2 teaspoons baking powder", @"1/4 teaspoon salt", @"2 beaten eggs", @"2/3 cup sugar", @"2 ounces melted white chocolate", @"1/2 cup milk", nil];
Recipe *recipe8 = [Recipe new];
recipe8.name = @"White Chocolate Mocha";
recipe8.prepTime = @"5 min";
recipe8.imageFile = @"starbucks_coffee.jpg";
recipe8.ingredients = [NSArray arrayWithObjects:@"2/3 cup whole milk", @"6 tablespoons white chocolate chips", @"coffee", @"whipped cream", nil];
Recipe *recipe9 = [Recipe new];
recipe9.name = @"Vegetable Curry";
recipe9.prepTime = @"30 min";
recipe9.imageFile = @"vegetable_curry.jpg";
recipe9.ingredients = [NSArray arrayWithObjects:@"1 tablespoon olive oil", @"1 onion, chopped", @"2 cloves garlic", @"2 1/2 tablespoons curry powder", @"2 quarts hot water", nil];
Recipe *recipe10 = [Recipe new];
recipe10.name = @"Instant Noodle with Egg";
recipe10.prepTime = @"8 min";
recipe10.imageFile = @"instant_noodle_with_egg.jpg";
recipe10.ingredients = [NSArray arrayWithObjects:@"1 pack of Instant Noodle", @"2 eggs", nil];
Recipe *recipe11 = [Recipe new];
recipe11.name = @"Noodle with BBQ Pork";
recipe11.prepTime = @"20 min";
recipe11.imageFile = @"noodle_with_bbq_pork.jpg";
recipe11.ingredients = [NSArray arrayWithObjects:@"1 pack of Instant Noodle", @"BBQ pork", @"Salt and Pepper", nil];
Recipe *recipe12 = [Recipe new];
recipe12.name = @"Japanese Noodle with Pork";
recipe12.prepTime = @"20 min";
recipe12.imageFile = @"japanese_noodle_with_pork.jpg";
recipe12.ingredients = [NSArray arrayWithObjects:@"1 pack of Japanese Noodle", @"2 green onions", @"2 garlic cloves, minced", @"4 boneless pork loin chops", nil];
Recipe *recipe13 = [Recipe new];
recipe13.name = @"Green Tea";
recipe13.prepTime = @"5 min";
recipe13.imageFile = @"green_tea.jpg";
recipe13.ingredients = [NSArray arrayWithObjects:@"Green tea", nil];
Recipe *recipe14 = [Recipe new];
recipe14.name = @"Thai Shrimp Cake";
recipe14.prepTime = @"1.5 hours";
recipe14.imageFile = @"thai_shrimp_cake.jpg";
recipe14.ingredients = [NSArray arrayWithObjects:@"8 oz (250g) peeled and deveined raw shrimp", @"2 tablespoons red curry paste", @"1 large egg", @"2 teaspoon fish sauce", @"1 tablespoon sugar", @"2 tablespoons coconut milk", @"2 tablespoons roughly chopped Thai basil leaves", nil];
Recipe *recipe15 = [Recipe new];
recipe15.name = @"Angry Birds Cake";
recipe15.prepTime = @"4 hours";
recipe15.imageFile = @"angry_birds_cake.jpg";
recipe15.ingredients = [NSArray arrayWithObjects:@"12 tablespoons (1 1/2 sticks) unsalted butter", @"2 1/2 cups all-purpose flour", @"1 tablespoon baking powder", @"1 teaspoon salt", @"1 3/4 cups sugar", @"2 large eggs, plus 3 large egg yolks", @"1 cup of milk", nil];
Recipe *recipe16 = [Recipe new];
recipe16.name = @"Ham and Cheese Panini";
recipe16.prepTime = @"10 min";
recipe16.imageFile = @"ham_and_cheese_panini.jpg";
recipe16.ingredients = [NSArray arrayWithObjects:@"2 tablespoons unsalted butter", @"4 cups thinly sliced shallots", @"2 teaspoons fresh thyme", @"1/4 cup grainy Dijon mustard", @"8 slices rustic white bread", @"8 slices Gruyere cheese", @"8 ounces sliced cooked ham", nil];
recipes = [NSArray arrayWithObjects:recipe1, recipe2, recipe3, recipe4, recipe5, recipe6, recipe7, recipe8, recipe9, recipe10, recipe11, recipe12, recipe13, recipe14, recipe15, recipe16, nil];
}
因此，当我按下“Egg Benedict”时，我需要使用图像数组进入视图控制器，当我选择“Mushroom Ristto”时，使用另一个图像阵列转到另一个视图控制器，依此类推每个16阵列的内容。
我使用prepareForSegue和代码如下
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if ([segue.identifier isEqualToString:@"themeDetails"]) {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
ThemeDetailViewController *destViewController = segue.destinationViewController;
destViewController.theme = [titleLabel objectAtIndex:indexPath.row];
}
如果这个正确或需要修改 我的（`ReciepeViewController.h）如下
@property (nonatomic, strong) ReciepeDetailViewController *reciepeDetailController;
请帮帮我;我在谷歌和youtube上多次搜索但没有得到任何东西
答案 0 :(得分：1)
您应该创建一个动态表格视图。
我建议您对代码进行以下改进：
首先，我将创建一个包含您的食谱的JSON文件，该文件将成为应用程序包中的资源文件：
使用以下内容创建文件“recipes.json”：
[
{
"preparation_time": 30,
"image_url": "egg_benedict.jpg",
"name": "Egg Benedict",
"ingredients": [
"2 fresh English muffins",
"4 eggs",
"4 rashers of back bacon",
"2 egg yolks",
"1 tbsp of lemon juice",
"125 g of butter",
"salt and pepper"
]
},
{
"preparation_time": 30,
"image_url": "mushroom_risotto.jpg",
"name": "Mushroom Risotto",
"ingredients": [
"1 tbsp dried porcini mushrooms",
"2 tbsp olive oil",
"1 onion, chopped",
"2 garlic cloves",
"350g/12oz arborio rice",
"1.2 litres/2 pints hot vegetable stock",
"salt and pepper",
"25g/1oz butter"
]
}
]
（注意：我只将您的代码示例中的两个食谱放入JSON文件中）
然后，我在viewDidLoad中的View Controller加载配方并创建一个JSON表示，这是一个字典数组：
NSBundle* mainBundle = [NSBundle mainBundle];
NSURL* recipesDataURL = [mainBundle URLForResource:@"recipes" withExtension:@"json"];
if (recipesDataURL) {
NSData* data = [NSData dataWithContentsOfURL: recipesDataURL];
if (data) {
NSError* error;
NSArray* recipes = [NSJSONSerialization JSONObjectWithData:data
options:0
error:&error];
if (recipes == nil) {
// error: couldn't parse the JSON
return;
}
self.recipes = recipes;
}
else {
// error: couldn't load the data with the given URL
return;
}
}
else {
// error: couldn't locate the resource in the bundle
return;
}
self.recipes是视图控制器的一个属性，它是一个食谱数组（NSDictionary）。
食谱本身是NSDictionary。如果需要，您可以创建一个专用类Recipe并使用包含“参数”的字典初始化配方对象（例如initWithParameters:。但是，将NSDictionary用作配方对象可能就足够了
如果使用动态表视图，则需要实现一些委托方法。官方文档有更多信息，请查看有关UITableView的各种主题：UITableView Programming Guide for iOS
基本上作为一个快速启动，您的TableViewDataSource代表将访问数组self.recipes以获取行数和配方对象的属性< / em>设置单元格时。例如：
UITableViewDataSource委托：
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [self.recipes count];
}
- (UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath
{
UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier:@"MyIdentifier"];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:@"MyIdentifier"];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
NSDictionary* recipe = [self.recipes objectAtIndex:indexPath.row];
cell.textLabel.text = recipe[@"name];
return cell;
}
编辑：
您可以显示详细视图，该视图显示其他答案中已显示的配方的所有详细信息。我建议遵循：
您的详细信息视图控制器具有recipe类型的公共属性NSDictionary：
@property (nonatomic, strong) NSDictionary* recipe;
如果您不使用故事板，则可以按如下方式显示详细视图控制器：
在 TableViewController.m ：
中- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSDictionary* recipe = [self.recipes objectAtIndex:[indexPath row]];
ShowRecipeViewController* viewController = (ShowRecipeViewController*)[[ShowRecipeViewController alloc] initWithNibName:@"ShowRecipeViewController" bundle:nil];
viewController.recipe = recipe;
[[self navigationController] pushViewController: viewController animated:YES];
}
我建议使用故事板。在这种情况下，详细视图控制器将获得recipe中设置的属性prepareForSegue:sender:。
答案 1 :(得分：0)
您有一个更好的选择，转到单个ViewController并使其动态分别为您的数据。但是，如果您想为各自的数据选择多个ViewController，请执行以下操作...
在Recipe界面中添加一个属性并将其合成
@property (nonatomic, retain) UIViewController *MyViewController;
现在使用viewDidLoad方法执行以下操作
-(void)viewDidLoad
{
[super viewDidLoad];
ObjectHolderArray=[[NSMutableArray alloc] init]; // it's mutable array for holding all the object of recipe which we are going to create
Recipe *recipe1 = [Recipe new];
recipe1.name = @"Egg Benedict";
recipe1.prepTime = @"30 min";
recipe1.imageFile = @"egg_benedict.jpg";
recipe1.ingredients = [NSArray arrayWithObjects:@"2 fresh English muffins", @"4 eggs", @"4 rashers of back bacon", @"2 egg yolks", @"1 tbsp of lemon juice", @"125 g of butter", @"salt and pepper", nil];
recipe1.MyViewController=[[eggBenedictViewController alloc] init]; //set your respective viewController
[ObjectHolderArray addObject:recipe1]; // add your object to your array
Recipe *recipe2 = [Recipe new];
recipe2.name = @"Mushroom Risotto";
recipe2.prepTime = @"30 min";
recipe2.imageFile = @"mushroom_risotto.jpg";
recipe2.ingredients = [NSArray arrayWithObjects:@"1 tbsp dried porcini mushrooms", @"2 tbsp olive oil", @"1 onion, chopped", @"2 garlic cloves", @"350g/12oz arborio rice", @"1.2 litres/2 pints hot vegetable stock", @"salt and pepper", @"25g/1oz butter", nil];\
recipe1.MyViewController=[[mushroomRisottoViewController alloc] init]; //set your respective viewController
[ObjectHolderArray addObject:recipe2]; // add your object to your array
// and so on
}
现在在didSelectRowAtIndexPath中执行以下操作
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
Recipe *recipeObject=[ObjectHolderArray objectAtIndex:[indexpath row]]; //get the selected recipe object
UIViewController *myController=(UIViewController *)[recipeObject MyViewController];
// Now you have your respective viewcotroller and also all the required data for going to next viewController
// then what you are waiting for? simply push your viewcontroller
}