Question

我想在ScrollView中有一个MapView，但是当我尝试滚动地图时，ScrollView优先考虑！有没有办法在地图内部滚动时给予MapView优先级，否则ScrollView？

谢谢！

Answer 1

我在10天内遇到了同样的问题，但几分钟前我得到了一个解决方案！这是解决方案。我做了一个自定义的MapView并覆盖了onTouchEvent（）。

@Override
public boolean onTouchEvent(MotionEvent ev) {
    int action = ev.getAction();
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        // Disallow ScrollView to intercept touch events.
        this.getParent().requestDisallowInterceptTouchEvent(true);
        break;

    case MotionEvent.ACTION_UP:
        // Allow ScrollView to intercept touch events.
        this.getParent().requestDisallowInterceptTouchEvent(false);
        break;
    }

    // Handle MapView's touch events.
    super.onTouchEvent(ev);
    return true;
}

Answer 2

更好/更简单的方法，无需操纵个别触摸事件。如果您使用MapView，这将有效：

  @Override
    public boolean dispatchTouchEvent(MotionEvent ev) {
        /**
         * Request all parents to relinquish the touch events
         */
        getParent().requestDisallowInterceptTouchEvent(true);
        return super.dispatchTouchEvent(ev);
    }

全班：

public class CustomMapView extends MapView {

    public CustomMapView(Context context) {
        super(context);
    }

    public CustomMapView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CustomMapView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public CustomMapView(Context context, GoogleMapOptions options) {
        super(context, options);
    }

    @Override
    public boolean dispatchTouchEvent(MotionEvent ev) {
        /**
         * Request all parents to relinquish the touch events
         */
        getParent().requestDisallowInterceptTouchEvent(true);
        return super.dispatchTouchEvent(ev);
    }
}

如果您使用的是MapFragment，则可以将该片段放入自定义视图中，然后在dispatchTouchEvent()中进行requestDisallowInterceptTouchEvent调用。

Answer 3

制作自己的地图并使用它。它完全适合我。

public class CustomMapView extends MapView {

public CustomMapView(Context context, AttributeSet attrs) {
    super(context, attrs);
}

@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
    switch (ev.getAction()) {
    case MotionEvent.ACTION_UP:
        System.out.println("unlocked");
        this.getParent().requestDisallowInterceptTouchEvent(false);
        break;
    case MotionEvent.ACTION_DOWN:
        System.out.println("locked");
        this.getParent().requestDisallowInterceptTouchEvent(true);
        break;
    }
    return super.dispatchTouchEvent(ev);
}}

在你的布局xml中，

<com.yourpackage.xxxx.utils.CustomMapView
                android:id="@+id/customMap"
                android:layout_width="match_parent"
                android:layout_height="400dp"
                android:layout_marginLeft="5dp"
                android:layout_marginRight="5dp"
                />

Answer 4

对于那些想要整个工作代码的人。这是

自定义地图视图类

public class CustomMapView extends MapView {

private ViewParent mViewParent;
public CustomMapView(Context context) {
    super(context);
}

public CustomMapView(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public CustomMapView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
}

public CustomMapView(Context context, GoogleMapOptions options) {
    super(context, options);
}

public void setViewParent(@Nullable final ViewParent viewParent) { //any ViewGroup
    mViewParent = viewParent;
}

@Override
public boolean onInterceptTouchEvent(final MotionEvent event) {
    switch (event.getAction()) {
        case MotionEvent.ACTION_DOWN:
            if (null == mViewParent) {
                getParent().requestDisallowInterceptTouchEvent(true);
            } else {
                mViewParent.requestDisallowInterceptTouchEvent(true);
            }
            break;
        case MotionEvent.ACTION_UP:
            if (null == mViewParent) {
                getParent().requestDisallowInterceptTouchEvent(false);
            } else {
                mViewParent.requestDisallowInterceptTouchEvent(false);
            }
            break;
        default:
            break;
    }

    return super.onInterceptTouchEvent(event);
  }
}

活动布局xml

  <ScrollView
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <location.to.your.CustomMapView
        android:id="@+id/mapView"
        android:layout_width="match_parent"
        android:layout_height="250dp"
         />

</ScrollView>

在您的活动或片段中实例化自定义地图类

       CustomMapView mapView = (CustomMapView) findViewById(R.id.mapView);

这就是它的享受

Answer 5

您可以像这样创建自定义MapView：

public class CustomMapView extends MapView {

    private MapFragment.ControlLock mCallbackControl;

    public CustomMapView(Context context) {
        this(context, null);
    }

    public CustomMapView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public CustomMapView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public CustomMapView(Context context, GoogleMapOptions options) {
        super(context, options);
    }

    public void setCallback(MapFragment.ControlLock callbackControl) {
        this.mCallbackControl = callbackControl;
    }

    @Override
    public boolean dispatchTouchEvent(MotionEvent event) {

        switch (event.getAction()) {
            case MotionEvent.ACTION_UP:
                System.out.println("unlocked");
                mCallbackControl.unlock(); /* Interface */
                break;
            case MotionEvent.ACTION_DOWN:
                System.out.println("locked");
                mCallbackControl.lock(); /* Interface */
                break;
        }

        return super.dispatchTouchEvent(event);
    }
}

Answer 6

我尝试过覆盖MapView.onTouchEvent（...），但它对我不起作用。这里的代码运行良好（覆盖MapView.onInterceptTouchEvent（...））：

public class MyMapView extends MapView {
    private ViewParent mViewParent;

//add constructors here

    public void setViewParent(@Nullable final ViewParent viewParent) { //any ViewGroup
            mViewParent = viewParent;
    }

    @Override
        public boolean onInterceptTouchEvent(final MotionEvent event) {
            switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN:
                    if (null == mViewParent) {
                        getParent().requestDisallowInterceptTouchEvent(true);
                    } else {
                        mViewParent.requestDisallowInterceptTouchEvent(true);
                    }
                    break;
                case MotionEvent.ACTION_UP:
                    if (null == mViewParent) {
                        getParent().requestDisallowInterceptTouchEvent(false);
                    } else {
                        mViewParent.requestDisallowInterceptTouchEvent(false);
                    }
                    break;
                default:
                    break;
            }

            return super.onInterceptTouchEvent(event);
        }
}

Answer 7

你可以简单地将MapView放在一个布局本身并覆盖onTouch或设置一个Click-Listener - 最简单的方法，因为我需要触摸我的ScrollView中的整个MapView。

Answer 8

如果您在滚动视图中有mapview，那么您必须向MapView明确提及以下参数：

mMapView.setClickable(true);
mMapView.setFocusable(true);
mMapView.setDuplicateParentStateEnabled(false);

Answer 9

如果有人想要这个课程在kotlin 我使用了@rotem

建议的dispatchTouchEvent

class CustomMapView : MapView {
           constructor(context: Context):
            super(context)
    constructor(context: Context, googleMapOptions: GoogleMapOptions):
            super(context, googleMapOptions)
    constructor(context: Context, attributeSet: AttributeSet):
            super(context, attributeSet)
    constructor(context: Context, attributeSet: AttributeSet, int: Int):
            super(context, attributeSet, int)

    override fun dispatchTouchEvent(event: MotionEvent?): Boolean {
        Log.d("CustomWebView", "touchevent")
        when(event?.action) {
            MotionEvent.ACTION_UP -> {
                Log.d("CustomWebView", "disallow Intercept")
                parent.requestDisallowInterceptTouchEvent(false)
            }
            MotionEvent.ACTION_DOWN -> {
                Log.d("CustomWebView", "allow Intercept")
                parent.requestDisallowInterceptTouchEvent(true)
            }
        }
        return super.dispatchTouchEvent(event)
    }
}

ScrollView中的MapView？

9 个答案: