Question

我有以下搜索工作正常，但我想将此代码添加到另一个使用storyboard的项目。 UIViewcontroller工作正常，甚至通过JSON从数据库返回数据，但是我不断收到此错误

* 由于未捕获的异常'NSInternalInconsistencyException'而终止应用程序，原因：'UITableView dataSource必须从tableView返回一个单元格：cellForRowAtIndexPath：'

我在故事板上添加了导航控制器和Uiviewcontroller，还添加了表格和自定义单元格

我还在UIviewcontroller中创建了搜索栏和搜索栏控制器插座，并在故事板上将它们拖放并链接起来

我不知道为什么当我在uisearchbar上执行搜索时，会立即抛出上面的错误

searchbarcontroller从uitableview

接收其数据源

以下是代码的一部分

`#import <UIKit/UIKit.h>

@interface MyController : UIViewController < UITableViewDelegate, UITableViewDataSource> {
    UITableView *myTable;
    UINib *myCell;

    //Vars to hold json data
    NSMutableArray *ids;
    NSMutableArray *name;
    NSMutableArray *price;
    NSMutableArray *place;
    NSMutableArray *thumb;
    NSMutableArray *description;

    //Searchbar stuff
    IBOutlet UISearchBar *mySearchBar;
    IBOutlet UISearchDisplayController *searchController;

    // The saved state of the search UI if a memory warning removed the view.
    NSString    *savedSearchTerm;
    NSInteger   savedScopeButtonIndex;
    NSMutableArray *searchedID;
    NSMutableArray *searchedName;
    NSMutableArray *searchedPrice;
    NSMutableArray *searchedLocation;
    NSMutableArray *searchedThumbs;
    NSMutableArray *description;


}


   @property (nonatomic, retain) IBOutlet UITableView *myTable;
    @property (nonatomic, retain) IBOutlet UISearchDisplayController *searchController;
    @property (nonatomic, retain) IBOutlet UISearchBar *mySearchBar;

    @property (nonatomic, retain) NSMutableArray *ids;
    @property (nonatomic, retain) NSMutableArray *name;
    @property (nonatomic, retain) NSMutableArray *price;
    @property (nonatomic, retain) NSMutableArray *place;
    @property (nonatomic, retain) NSMutableArray *thumb;
    @property (nonatomic, retain) NSMutableArray *description;

    @property (nonatomic, copy) NSString *savedSearchTerm;
    @property (nonatomic) NSInteger savedScopeButtonIndex;
    @property (nonatomic) BOOL searchWasActive;

    @property (nonatomic, retain) NSMutableArray *searchedID;
    @property (nonatomic, retain) NSMutableArray *searchedName;
    @property (nonatomic, retain) NSMutableArray *searchedPrice;
    @property (nonatomic, retain) NSMutableArray *searchedLocation;
    @property (nonatomic, retain) NSMutableArray *searchedThumbs;
    @property (nonatomic, retain) NSMutableArray *searchedDescription;

    - (void)reloadTableViewDataSource;
    - (void)doneLoadingTableViewData;
    @end





MyController.m file



#import "MyController.h"

@implementation myController
@synthesize myTable;
@synthesize data, searcheddata
@synthesize savedSearchTerm, savedScopeButtonIndex, searchWasActive;

//Add the search bar

#pragma mark -
#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.
    if (tableView == self.searchDisplayController.searchResultsTableView) {
        return [self.searchedIds count];
    } else {
        return [self.ids count];
    }
}


// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {


    MyCustomCell *cell = (MyCustomCell *)[tableView dequeueReusableCellWithIdentifier:@"MyCellID"];


    if (!cell)
    {
        NSArray *topLevelItems = [myCell instantiateWithOwner:self options:nil];
        cell = [topLevelItems objectAtIndex:0];
    }

    if (tableView == self.searchDisplayController.searchResultsTableView) {
        [[cell titles] setText:[searchedTitles objectAtIndex:indexPath.row]];
        [[cell prices] setText:[NSString stringWithFormat:@"%@", [searchedPrices objectAtIndex:indexPath.row]]];
        [[cell locations] setText:[NSString stringWithFormat:@"%@", [searchedLocation objectAtIndex:indexPath.row]]];
        //Set the image with async technology
        [[cell thumbs] setImageWithURL:[NSURL URLWithString:[searchedThumbs objectAtIndex:indexPath.row]] placeholderImage:[UIImage imageNamed:@"placeholder.png"]];


    } else {
        [[cell titles] setText:[title objectAtIndex:indexPath.row]];
        [[cell prices] setText:[NSString stringWithFormat:@"%@", [price objectAtIndex:indexPath.row]]];
        [[cell locations] setText:[NSString stringWithFormat:@"%@", [location objectAtIndex:indexPath.row]]];
        //Set the image with async technology
        [[cell thumbs] setImageWithURL:[NSURL URLWithString:[thumb objectAtIndex:indexPath.row]] placeholderImage:[UIImage imageNamed:@"placeholder.png"]];

    }
    return cell;
}
`


  [1]: http://i.stack.imgur.com/0ZNzq.png

Answer 1

尝试这种方法（将self添加到tableView）：

MyCustomCell *cell = (MyCustomCell *)[self.tableView dequeueReusableCellWithIdentifier:@"MyCellID"];

故事板IOS6中的Uisearchbar和Searchcontroller

1 个答案: