MapView:使用MKUserTrackingBarButtonItem切换地图追踪状态
MapView:使用MKUserTrackingBarButtonItem切换地图追踪状态
提问于 2011-11-14 10:57:09
我已经向我的工具栏添加了一个MKUserTrackingBarButtonItem。但是，单击它不会做任何事情。因此，我假设我需要像使用普通UIBarButtonItem一样使用addTarget，但这也不起作用。
如何将方法附加到按钮以更改setUserTrackingMode:animated:
MKUserTrackingBarButtonItem *trackingItem = [[[MKUserTrackingBarButtonItem alloc] initWithMapView:mapView] autorelease];
UISegmentedControl *segmentedControl = [[[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:@"List", @"Detail", nil]] autorelease];
segmentedControl.frame = CGRectMake(0, 0, 220, 30);
[segmentedControl setWidth:100.0 forSegmentAtIndex:0];
[segmentedControl setWidth:100.0 forSegmentAtIndex:1];
[segmentedControl setSelectedSegmentIndex:0];
segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;
UIBarButtonItem *segmentedButton = [[[UIBarButtonItem alloc] initWithCustomView:segmentedControl] autorelease];
UIBarButtonItem *pageCurl = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemPageCurl target:self action:nil] autorelease];
pageCurl.tintColor = [UIColor lightGrayColor];
UIBarButtonItem *leftFlex = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil] autorelease];
UIBarButtonItem *rightFlex = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil] autorelease];
self.toolbar.items = [NSArray arrayWithObjects:trackingItem, leftFlex, segmentedButton, rightFlex, pageCurl, nil];回答 2
Stack Overflow用户
回答已采纳
发布于 2011-12-03 03:23:11
MKUserTrackingBarButtonItem *trackButton = [[MKUserTrackingBarButtonItem alloc] initWithMapView:mapView];
[trackButton setTarget:self];
[trackButton setAction:@selector(track:)];
[toolbar setItems:[NSArray arrayWithObjects:trackButton, nil] animated:YES]; Stack Overflow用户
发布于 2011-11-14 11:04:08
我认为你应该用这个方法初始化MKUserTrackingBarButtonItem：
– initWithMapView:请参阅文档：http://developer.apple.com/library/ios/#documentation/MapKit/Reference/MKUserTrackingBarButtonItemClassRef/Reference/Reference.html
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原文链接：
https://stackoverflow.com/questions/8116811
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