Question

在我的应用程序中，我有一个mapView和一个按钮，该按钮用于在标准mapView和卫星视图之间切换mapView。

enter image description here
这是快照，如果我按下卫星按钮，mapView应该变为卫星视图，按钮图像应该更改为下图，

现在按下按钮它应该变为普通的mapView。

//mapView
camera=[GMSCameraPosition cameraWithLatitude:13.45 longitude:80.93 zoom:6];
mapView=[GMSMapView mapWithFrame:CGRectMake(0, 0, width, height) camera:camera];
mapView.myLocationEnabled=YES;  
//button
satellite=[UIButton buttonWithType:UIButtonTypeCustom];
satellite.Frame=CGRectMake(250, 300, 65 , 65);
[satellite setBackgroundImage:[UIImage imageNamed:@"Satellite.png"] forState:UIControlStateNormal];
[satellite addTarget:self action:@selector(satelliteView:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:mapView];
[self.view addSubview:satellite];

Answer 1

简单：

尝试使用UIButton的标记。默认情况下，为标准mapView指定标签，用于Ex mapButton.tag = 100;

    - (IBAction)mapSatelliteSegmentControlTapped:(UIButton *)sender
    {
        if(sender.tag == 100)
        {
              self.mapView.mapType = MKMapTypeStandard;
              // Change the MapButton image as well as tag 
               self.mapButton.tag = 101; // 
              [self.mapButton setImage:[UIImage imageNamed:@"mapSateliite.png"] forState:UIControlStateNormal];
        }
        else
        {
              self.mapView.mapType = MKMapTypeSatellite;
              // Change the MapButton image as well as tag 
              self.mapButton.tag = 100; // 
              [self.mapButton setImage:[UIImage imageNamed:@"mapStandard.png"] 
        }

}

Answer 2

由于您使用单个按钮在两种类型的地图之间切换，因此您必须跟踪按钮的状态。假设您的按钮默认显示正常的地图视图。

@property(nonatomic, assign) BOOL isSatelliteMap;

当视图第一次加载为isSatelliteMap = NO;时，将其设为FALSE，这意味着您将首次加载MKMapTypeStandard＆amp;按钮将显示SatelliteImage。

现在按下按钮时：

-(void)ButtonPressed:(UIButton*)sender
{
    if(!isSatelliteMap)
    {
        //set MKMapTypeSatellite
        self.mapView.mapType = MKMapTypeSatellite;
        [sender setImage:[UIImage imageNamed:@"ButtonMapNormal.png"] forState:UIControlStateNormal];
        isSatelliteMap = YES;
    }
    else
    {
        self.mapView.mapType = MKMapTypeStandard;
        [sender setImage:[UIImage imageNamed:@"ButtonMapSatellite.png"] forState:UIControlStateNormal];
        isSatelliteMap = NO;
    }
}

这件事可以应用于任何类型的地图。我的意思是你可以为谷歌地图做同样的事情。希望这会有所帮助。

Answer 3

您可以将下面的代码添加到内部方法中以更改按钮图像

-(void)settalite:(id)sender{

    UIbutton *btn=(UIButton *)sender;
    [btn setBackgroundImage:[UIImage imageNamed:@"map.png"] forState:UIControlStateNormal];

}

Answer 4

我只是给你一个建议，在按钮点击方法中添加你的MKMapView，并给出按钮标记等。 （在您的情况下，更改 GoolgeMap ）

myButton.tag = 101;

以下是按钮方法。

-(void)buttonPressed:(UIButton *) sender
{
   if(self.mapView)
   {
      [self.mapView removeFromSuperView];
   }   

   self.mapView = [[MKMapView alloc] init];
   self.mapView.frame = self.view.bounds;       
   [self.mapView setZoomEnabled:YES];
   [self.mapView setScrollEnabled:YES];
   [self.mapView setDelegate:self];
   [self.view addSubview:self.mapView];

   if(sender.tag ==101)
   {
      [self.mapView setMapType:MKMapTypeSatellite];
      [btnGoHome setImage:[UIImage imageNamed:@"changedImage.png"] forState:UIControlStateNormal]; 
      sender.tag = 100; 
   }
   else
   {
      [btnGoHome setImage:[UIImage imageNamed:@"previouseImage.png"] forState:UIControlStateNormal]; 
      [self.mapView setMapType:MKMapTypeStandard];
      sender.tag = 101; 
   }
}

在self.view上添加按钮，不要忘记写

[self.view bringSubviewToFront:buttonName];

Answer 5

-(IBAction)satelliteView:(UIButton*)sender
{
    switch (sender.tag) {
        case 0:
            sender.tag=1;
            [sender setImage:[UIImage imageNamed:@"standardImage.png"] forState:UIControlStateNormal];

            break;
        case 1:

            sender.tag=0;
            [sender setImage:[UIImage imageNamed:@"mapSateliite.png"] forState:UIControlStateNormal];
            break;
        default:
            break;
    }

}

iOS-如何通过单击更改按钮的图像和属性？

5 个答案: