ios – 从其他ViewController调用didSelectRowAtIndexPath而不响应iPad

概述我想从detailViewController上的按钮更改表中的选定行(在MasterViewController中). 我知道我不能调用didSelectRowAtIndexPath,因为它是一个委托方法.我尝试使用selectRowAtIndexPath但不调用didSelectRowAtIndexPath和willSelectRowAtIndexPath方法.正如这里所说, https:// 我想从detailVIEwController上的按钮更改表中的选定行(在MasterVIEwController中).
我知道我不能调用dIDSelectRowAtIndexPath,因为它是一个委托方法.我尝试使用selectRowAtIndexPath但不调用dIDSelectRowAtIndexPath和willSelectRowAtIndexPath方法.正如这里所说,
https://stackoverflow.com/a/7496926/1050722可以使用一些新方法,然后从另一个VIEwController(detailVIEwController)调用该方法,但该方法应该如何？

这是一些代码：

MasterVIEwController.m

- (voID)tableVIEw:(UItableVIEw *)tableVIEw dIDSelectRowAtIndexPath:(NSIndexPath *)indexPath   {    [self pushDetailVIEwController:indexPath];}-(voID)pushDetailVIEwController:(NSIndexPath *)indexPath{            if (!self.detailVIEwController) {        self.detailVIEwController = [[DetailVIEwController alloc] initWithNibname:@"DetailVIEwController" bundle:nil];    }    [self.navigationController pushVIEwController:self.detailVIEwController animated:YES];    NSLog(@"pushDetailvIEwC and index %@",indexPath);}

DetailVIEwController.m

-(IBAction)nextItem{    MasterVIEwController *mVc = [[MasterVIEwController alloc] init];    [mVc pushDetailVIEwController:[NSIndexPath indexPathForRow:0 inSection:0]];}

有人能举个例子来解决这个问题吗？谢谢.

编辑：这是新代码

MasterVIEwController.m

- (voID)tableVIEw:(UItableVIEw *)tableVIEw dIDSelectRowAtIndexPath:(NSIndexPath *)indexPath{    [self pushDetailVIEwController:indexPath];}-(voID)pushDetailVIEwController:(NSIndexPath *)indexPath{    if (!self.detailVIEwController) {        self.detailVIEwController = [[DetailVIEwController alloc] initWithNibname:@"DetailVIEwController" bundle:nil];    }    self.detailVIEwController.mVc = self;    [self.navigationController pushVIEwController:self.detailVIEwController animated:YES];    NSLog(@"pushDetailvIEwC and index %@",indexPath);}

DetailVIEwController.h

#import <UIKit/UIKit.h>#import "MasterVIEwController.h"@interface DetailVIEwController : UIVIEwController <UISplitVIEwControllerDelegate,UItableVIEwDelegate>@property (strong,nonatomic) ID detailitem;@property (strong,nonatomic) IBOutlet UILabel *detailDescriptionLabel;@property (nonatomic,retain) MasterVIEwController *mVc;

DetailVIEwCOntroller.m

-(IBAction)test{    //MasterVIEwController *mVc = [[MasterVIEwController alloc] init];    [self.mVc pushDetailVIEwController:[NSIndexPath indexPathForRow:0 inSection:0]];}

它不会调用方法的NSLog部分,也不会选择行…

解决方法 根据您的问题,这个答案是iPad特定的.

主版/明细模板的iPad版本使用UISplitVIEwController两个分割屏幕.此UISplitVIEwController实例保留对两个导航控制器的引用.其中保留了对最顶层视图控制器的引用.这是示例代码,除了测试之外不要逐字使用,因为它不包含错误检查.

// Picking some arbitrary row NSUInteger desiredRow = 3;//???// The Master navigation controller is at index zero in the template,you can check in your app delegate's dIDFinishLaunching: methodUINavigationController *masterController = [self.splitVIEwController.vIEwControllers objectAtIndex:0];// Next we want a reference to the topmost vIEwController again you shouldn't assume it's a UItableVIEwControllerUItableVIEwController *tableController = (UItableVIEwController *)masterController.visibleVIEwController;// Next we get the reference to the tablevIEw in-questionUItableVIEw *tableVIEw = tableController.tableVIEw;// We translate our desired row to an index pathNSIndexPath *path = [NSIndexPath indexPathForRow:desiredRow inSection:0];// We select the row,again this will not call dIDSelectRowAtIndexPath:[tableVIEw selectRowAtIndexPath:path animated:YES scrollposition:UItableVIEwScrollpositionNone];// We call dIDSelectRowAtIndexPath: on the tablevIEw's delegate[tableVIEw.delegate tableVIEw:tableVIEw dIDSelectRowAtIndexPath:path];

当我在详细视图控制器中将此代码放入IBAction方法时,链接按钮执行适当的 *** 作,两者都选择行并推送VC,就像我通过触摸选择了行一样.

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