将数据从1个类移动到另一个类 - 相同的应用程序

时间:2015-04-22 21:58:50

标签: objective-c macos cocoa osx-yosemite

需要真正的帮助!!!

我正在尝试使用第二类中第一类创建的数据。我一直在搜索Youtube和StackOverflow超过1周。每当我认为我很接近时,就会有一些我无法理解的缺失。我的最新尝试来自2011年发布的这个网站(在课程之间传递数据objective-c),当应用程序编译时,我看不到第二类中的数据。

更具体。我正在使用2个类,因为数据是在用户选择的组(第1类)中收集的,并将在屏幕上显示在第2类的表中。来自源的6个NSMutable Arrays传递给第2类中的6个不同。我将继续尝试解决,但我可以使用帮助。

以下是我在2011年文章中设计的内容:

第一类.h代码(部分):

#import <Cocoa/Cocoa.h>
#import <Foundation/Foundation.h>
#import "ReportsOutput.h"

//@class AppDelegate;

@class ReportsOutput;




@interface ReportsClass : NSWindowController<NSApplicationDelegate,NSMenuDelegate,NSWindowDelegate>{

    ReportsOutput *ro;


    //Shared Data arrays

    NSMutableArray *tblYrScott;
    NSMutableArray *tblYrExt;
    NSMutableArray *tblYrYear;
    NSMutableArray *tblYrType;
    NSMutableArray *tblYrPrice;
    NSMutableArray *tblYrDescription;

...... added code

@property(nonatomic,retain)NSMutableArray *tblYrScott;
@property(nonatomic,retain)NSMutableArray *tblYrExt;
@property(nonatomic,retain)NSMutableArray *tblYrType;
@property(nonatomic,retain)NSMutableArray *tblYrYear;
@property(nonatomic,retain)NSMutableArray *tblYrPrice;
@property(nonatomic,retain)NSMutableArray *tblYrDescription;

第一类.m代码:

- (IBAction)btnShowDataOutput:(id)sender {

    //pass data from Reports Class to Report Output Class

    ReportsOutput *objReportsOutput = [[ReportsOutput alloc]init];

    [objReportsOutput.tblScott setArray: tblYrScott];

    [objReportsOutput.tblExt setArray:tblYrDescription];

    [objReportsOutput.tblYear setArray:tblYrYear];

    [objReportsOutput.tblType setArray:tblYrType];

    [objReportsOutput.tblDescription setArray:tblYrDescription];

    // open Reports Output Window

    if (ro == nil){

        ro = [[ReportsOutput alloc] initWithWindowNibName:@"ReportsOutput"];

    }

    [ro showWindow:nil];
}

第二课.h代码:

#import <Cocoa/Cocoa.h>
#import "ReportsClass.h"


@interface ReportsOutput : NSWindowController{

   //shared data arrays
    NSMutableArray *tblScott;
    NSMutableArray *tblExt;
    NSMutableArray *tblYear;
    NSMutableArray *tblType;
    NSMutableArray *tblPrice;
    NSMutableArray *tblDescription;


}


@property(nonatomic,strong) NSMutableArray *tblScott;
@property(nonatomic,strong) NSMutableArray *tblExt;
@property(nonatomic,strong) NSMutableArray *tblYear;
@property(nonatomic,strong) NSMutableArray *tblType;
@property(nonatomic,strong) NSMutableArray *tblPrice;
@property(nonatomic,strong) NSMutableArray *tblDescription;


@end

第二课.m代码:

#import "ReportsOutput.h"
//#import "ReportsClass.h"

@interface ReportsOutput ()


@end

@implementation ReportsOutput

@synthesize tblScott;
@synthesize tblExt;
@synthesize tblType;
@synthesize tblPrice;
@synthesize tblYear;
@synthesize tblDescription;


- (void)windowDidLoad {
    [super windowDidLoad];

}

-(void)awakeFromNib{

    [self dataCheck];
}

-(void)dataCheck{

    int a;

    for (a=0; a<[self.tblScott count]; a++){


        NSLog(@"@i,%d :%@: %@: %@: %@: %@: %@",a,[tblScott objectAtIndex:a],[tblExt objectAtIndex:a],[tblYear objectAtIndex:a],[tblType objectAtIndex:a],[tblPrice objectAtIndex:a],[tblDescription objectAtIndex:a]);

}
}

1 个答案:

答案 0 :(得分:3)

在btnShowDataOutput中,您创建objReportsOutput,但该方法在方法结束后立即消失。您不需要创建objReportsOutput。而是直接在ReportsOutput窗口控制器上设置属性:

if (ro == nil){

    ro = [[ReportsOutput alloc] initWithWindowNibName:@"ReportsOutput"];
}

ro.tblScott = self.tblYrScott
ro.tblExt = self.tblYrExt
ro.tblYear = self.tblYrYear
ro.tblType = self.tblYrType
ro.tblDescription = self.tblYrDescription

[ro showWindow:nil];