Android的doubletap，ontouchevent不工作 [英] Android doubletap, ontouchevent is not working

问题描述

我需要放大时，双攻。为什么没有这方面的工作？我曾在它里面有没有结果很长一段时间。没有触摸事件被认为是

 公共类MyMapActivity扩展MapActivity实现OnGestureListener {
私人MapView类MapView类;@覆盖
公共无效的onCreate（捆绑savedInstanceState）{requestWindowFeature（Window.FEATURE_NO_TITLE）;
super.onCreate（savedInstanceState）;
的setContentView（R.layout.main）;
图形页面=（图形页面）findViewById（R.id.mapView）;
mGestureDetector =新GestureDetector（这一点，这一点）;
detector.setOnDoubleTapListener（新OnDoubleTapListener（）{
    @覆盖
公共布尔onDoubleTap（MotionEvent五）{
 INT X =（INT）e.getX（），Y =（INT）e.getY（）;;
 投影p值= map.getProjection（）;
 。map.getController（）animateTo（p.fromPixels（X，Y））;
 。map.getController（）zoomInFixing（X，Y）;
 返回false;
}@覆盖
公共布尔onDoubleTapEvent（MotionEvent五）{
    返回false;
}    }）;
}
@覆盖
公共布尔onTouchEvent（MotionEvent我）{
this.mGestureDetector.onTouchEvent（箱）;
返回super.onTouchEvent（箱）;
}
 

解决方案

尝试在看看在 MapView的气球库，它有双点击缩放和更多的支持！这是非常好，易于使用，并与项目相结合。 MapView的气球

I need to zoom when double tapping. Why doesn't this work? I worked on it for long time which has no result. No touch event is recognized

public class MyMapActivity extends MapActivity implements OnGestureListener{
private MapView mapView;

@Override
public void onCreate(Bundle savedInstanceState) {

requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mapView = (MapView)findViewById(R.id.mapView);
mGestureDetector = new GestureDetector(this,this);
detector.setOnDoubleTapListener(new OnDoubleTapListener(){
    @Override
public boolean onDoubleTap(MotionEvent e) {
 int x = (int)e.getX(), y = (int)e.getY();;  
 Projection p = map.getProjection();  
 map.getController().animateTo(p.fromPixels(x, y));
 map.getController().zoomInFixing(x, y);  
 return false;
}

@Override
public boolean onDoubleTapEvent(MotionEvent e) {
    return false;
}

    });
}
@Override
public boolean onTouchEvent(MotionEvent me) {
this.mGestureDetector.onTouchEvent(me);
return super.onTouchEvent(me); 
}

解决方案

Try having a look at the MapView Ballons library which has support for double tapping to zoom and more! It is really good and easy to use and integrate with a project. MapView Ballons

这篇关于Android的doubletap，ontouchevent不工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！