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我爲我的IOS應用程序使用Google Maps sdk,當用戶在地圖上單擊時,我需要更改標記位置。所以當我實現這個功能的時候它運行的很好,但是當地圖上的雙角線停止時的縮放功能。這裏是我的代碼:谷歌地圖禁用縮放當我實現輕拍手勢識別器?
// on viewDidLoad()
//...
UITapGestureRecognizer *tgr = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handleGesture:)];
tgr.numberOfTapsRequired = 1;
tgr.numberOfTouchesRequired = 1;
[mask addGestureRecognizer:tgr]; //mask here is a UiImageView above the map, userInteraction is enabled to enable gesture recogniser
- (void)handleGesture:(UITapGestureRecognizer *)gestureRecognizer
{
if (gestureRecognizer.state != UIGestureRecognizerStateEnded)
return;
CGPoint touchPoint = [gestureRecognizer locationInView:mapView];
CLLocationCoordinate2D coordinate =
[mapView.projection coordinateForPoint: touchPoint];
[marker setPosition:coordinate]; }
所以我的問題是如何得到單擊手勢識別器的工作中,同時不失縮放功能?