UIsearchBar应在用户在没有键盘按键存储的搜索栏中输入字符时立即显示结果

Question

这个代码我已经知道它只是在键盘敲击sjows结果的UIsearchControl中输入文本后才在搜索栏中显示结果。

我希望在搜索中每个字符的输入应该使用哪个委托

任何人都可以帮助我。

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    SEachResultContoller=1;
    NSString *searchBarText=searchContollerObj.searchBar.text;
    // searching by serial no
    if(SEachResultContoller==1)
    {
        if(searchBarText == nil)
        {
            resultArray=[reasourceDataToShowOnView mutableCopy];

        }
        else
        {
            NSMutableArray *resultArray1=[[ NSMutableArray alloc] init];
            for(NSDictionary *dict in reasourceDataToShowOnView)
            {
                if([dict [SERIALNO] containsString:searchBarText])
                {
                    [resultArray1 addObject:dict];

                }

                resultArray=resultArray1;
                DDLogDebug(@" search data %@",resultArray);

            }
        }

        [ _resousetableView reloadData];
    }
    // searchng by barcode
    else if (searchByBarCode==1)
    {
        if(searchBarText == nil)
        {
            resultArray=[reasourceDataToShowOnView mutableCopy];

        }
        else
        {
            NSMutableArray *resultArray1=[[ NSMutableArray alloc] init];
            for(NSDictionary *dict in reasourceDataToShowOnView)
            {
                if([dict [BARCODE] containsString:searchBarText])
                {
                    [resultArray1 addObject:dict];

                }

                resultArray=resultArray1;
                DDLogDebug(@" search data %@",resultArray);

            }
        }

        [ _resousetableView reloadData];
    }



}



- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    SEachResultContoller=1;
    NSString *searchBarText=searchContollerObj.searchBar.text;
    // searching by serial no
    if(SEachResultContoller==1)
    {
        if(searchBarText == nil)
        {
            resultArray=[reasourceDataToShowOnView mutableCopy];

        }
        else
        {
            NSMutableArray *resultArray1=[[ NSMutableArray alloc] init];
            for(NSDictionary *dict in reasourceDataToShowOnView)
            {
                if([dict [SERIALNO] containsString:searchBarText])
                {
                    [resultArray1 addObject:dict];

                }

                resultArray=resultArray1;
                DDLogDebug(@" search data %@",resultArray);

            }
        }

        [ _resousetableView reloadData];
    }
    // searchng by barcode
    else if (searchByBarCode==1)
    {
        if(searchBarText == nil)
        {
            resultArray=[reasourceDataToShowOnView mutableCopy];

        }
        else
        {
            NSMutableArray *resultArray1=[[ NSMutableArray alloc] init];
            for(NSDictionary *dict in reasourceDataToShowOnView)
            {
                if([dict [BARCODE] containsString:searchBarText])
                {
                    [resultArray1 addObject:dict];

                }

                resultArray=resultArray1;
                DDLogDebug(@" search data %@",resultArray);

            }
        }

        [ _resousetableView reloadData];
    }



}

//按下输入btn

后显示结果

-

(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText


 SEachResultContoller=1;
    NSString *searchBarText=searchBar.text;
    // searching by serial no
    if(SEachResultContoller==1)
    {
        if(searchBarText == nil)
        {
            resultArray=[reasourceDataToShowOnView mutableCopy];

        }
        else
        {
            NSMutableArray *resultArray1=[[ NSMutableArray alloc] init];
            for(NSDictionary *dict in reasourceDataToShowOnView)
            {
                if([dict [SERIALNO] containsString:searchBarText])
                {
                    [resultArray1 addObject:dict];

                }

                resultArray=resultArray1;
                DDLogDebug(@" search data %@",resultArray);

            }
        }

        [ _resousetableView reloadData];
    }
    // searchng by barcode
    else if (searchByBarCode==1)
    {
        if(searchBarText == nil)
        {
            resultArray=[reasourceDataToShowOnView mutableCopy];

        }
        else
        {
            NSMutableArray *resultArray1=[[ NSMutableArray alloc] init];
            for(NSDictionary *dict in reasourceDataToShowOnView)
            {
                if([dict [BARCODE] containsString:searchBarText])
                {
                    [resultArray1 addObject:dict];

                }

                resultArray=resultArray1;
                DDLogDebug(@" search data %@",resultArray);

            }
        }

        [ _resousetableView reloadData];
    }


}


- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    SEachResultContoller=1;
    NSString *searchBarText=searchContollerObj.searchBar.text;
    // searching by serial no
    if(SEachResultContoller==1)
    {
        if(searchBarText == nil)
        {
            resultArray=[reasourceDataToShowOnView mutableCopy];

        }
        else
        {
            NSMutableArray *resultArray1=[[ NSMutableArray alloc] init];
            for(NSDictionary *dict in reasourceDataToShowOnView)
            {
                if([dict [SERIALNO] containsString:searchBarText])
                {
                    [resultArray1 addObject:dict];

                }

                resultArray=resultArray1;
                DDLogDebug(@" search data %@",resultArray);

            }
        }

        [ _resousetableView reloadData];
    }
    // searchng by barcode
    else if (searchByBarCode==1)
    {
        if(searchBarText == nil)
        {
            resultArray=[reasourceDataToShowOnView mutableCopy];

        }
        else
        {
            NSMutableArray *resultArray1=[[ NSMutableArray alloc] init];
            for(NSDictionary *dict in reasourceDataToShowOnView)
            {
                if([dict [BARCODE] containsString:searchBarText])
                {
                    [resultArray1 addObject:dict];

                }

                resultArray=resultArray1;
                DDLogDebug(@" search data %@",resultArray);

            }
        }

        [ _resousetableView reloadData];
    }

哪个委托方法或如何实施它可以帮助我

Answer 1

首先调用此委托方法

-(BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar
{
   // Your implementation

    return YES;
}

如果您不想显示键盘返回NO。

另请尝试本教程Implement Search Bar