Question

我设法让谷歌地图启动并运行。问题是我正在开发的应用程序的当前设计与谷歌地图中的缩放控件重叠。如何将此变焦控制移动到另一个位置？

Answer 1

您可以使用GoogleMap.setPadding()为地图上显示的控件添加填充。

更多文档here。

Answer 2

我找到了两种移动GoogleMap缩放控件的方法。第一个在@ Numan1617的答案中提到，使用setPadding()函数：

googleMap.setPadding(left, top, right, bottom);

这对于确保在屏幕底部有Google AdView 横幅时可以看到缩放控件非常有用。像这样：

googleMap.setPadding(0,0,0,adViewLayout.getHeight());

这将移动左下角的Google名称，缩放控件和工具栏（当您触摸地图上的标记时，从右向左滑动），移动到包含AdView的布局上方。否则，这些UI控件可能完全或部分位于 AdView 。

之后

但是，如果你想要更好的控制呢？就像将变焦控制一直移动到角落一样？所以我挖出来并想出这样做：获取包含缩放控件的视图对象并为其设置新的LayoutParams。

我还想移动指南针和工具栏，所以我也在这里包含了代码。

注意：GoogleMap UI控件设置的文本标签可以方便地访问它们。我包含了我能找到的所有UI控件文本标签。

在缩放控件封闭布局上似乎没有方便的标签，因此我必须获得一个放大/缩小控件，然后获取它的父视图（实际上是ViewGroup）。我发现它包含RelativeLayout.LayoutParams，这意味着它的封闭布局是RelativeLayout。

此处位于DisplayMapFragment.java：

package <blah>;

import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RelativeLayout;

import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;

public class DisplayMapFragment implements OnMapReadyCallback {
    private static final String TAG = DisplayMapFragment.class.getSimpleName();

    private static final String GOOGLEMAP_COMPASS = "GoogleMapCompass";                   // [4]
    private static final String GOOGLEMAP_TOOLBAR = "GoogleMapToolbar";                   // [3]
    private static final String GOOGLEMAP_ZOOMIN_BUTTON = "GoogleMapZoomInButton";        // [2]child[0]
    private static final String GOOGLEMAP_ZOOMOUT_BUTTON = "GoogleMapZoomOutButton";      // [2]child[1]
    private static final String GOOGLEMAP_MYLOCATION_BUTTON = "GoogleMapMyLocationButton";// [0]

    private View mapView = null;

    public DisplayMapFragment() {
        // Required empty public constructor
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(R.layout.fragment_map, container, false);

        Log.d(TAG, "onCreateView()");

        SupportMapFragment mapFragment = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map);

        mapFragment.setRetainInstance(true);

        mapFragment.getMapAsync(this);  // map calls my onMapReady()

        mapView = mapFragment.getView();

        return view;
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        Log.d(TAG, "onMapReady()");

        // move the compass to top center
        moveCompass(mapView,-1,4,-1,-1,true,false);

        // move toolbar to right center
        moveToolbar(mapView,-1,-1,4,-1,false,true);

        // move zoom controls to bottom right
        moveZoomControls(mapView, -1,-1,4,4,false,false);
    }

    /**
     * Move the View according to the passed params.  A -1 means to skip that one.
     *
     * NOTE:  this expects the view to be inside a RelativeLayout.
     *
     * @param view - a valid view
     * @param left - the distance from the left side
     * @param top - the distance from the top
     * @param right - the distance from the right side
     * @param bottom - the distance from the bottom
     * @param horizontal - boolean, center horizontally if true
     * @param vertical - boolean, center vertically if true
     */
    private void moveView(View view, int left, int top, int right, int bottom, boolean horizontal, boolean vertical) {
        try {
            assert view != null;

            // replace existing layout params
            RelativeLayout.LayoutParams rlp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,
                    RelativeLayout.LayoutParams.WRAP_CONTENT);

            if (left >= 0) {
                rlp.addRule(RelativeLayout.ALIGN_PARENT_START, RelativeLayout.TRUE);
                rlp.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
            }

            if (top >= 0) {
                rlp.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
            }

            if (right >= 0) {
                rlp.addRule(RelativeLayout.ALIGN_PARENT_END, RelativeLayout.TRUE);
                rlp.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);
            }

            if (bottom >= 0) {
                rlp.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
            }

            if (horizontal) {
                rlp.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
            }

            if (vertical) {
                rlp.addRule(RelativeLayout.CENTER_VERTICAL, RelativeLayout.TRUE);
            }

            rlp.setMargins(left, top, right, bottom);

            view.setLayoutParams(rlp);
        } catch (Exception ex) {
            Log.e(TAG, "moveView() - failed: " + ex.getLocalizedMessage());
            ex.printStackTrace();
        }
    }

    private void moveCompass(View mapView, int left, int top, int right, int bottom, boolean horizontal, boolean vertical) {

        assert mapView != null;

        View compass = mapView.findViewWithTag(GOOGLEMAP_COMPASS);

        if (compass != null) {
            moveView(compass,left,top,right,bottom,horizontal,vertical);
        }
    }

    private void moveToolbar(View mapView, int left, int top, int right, int bottom, boolean horizontal, boolean vertical) {

        assert mapView != null;

        View toolbar = mapView.findViewWithTag(GOOGLEMAP_TOOLBAR);

        if (toolbar != null) {
            moveView(toolbar,left,top,right,bottom,horizontal,vertical);
        }
    }

    private void moveZoomControls(View mapView, int left, int top, int right, int bottom, boolean horizontal, boolean vertical) {

        assert mapView != null;

        View zoomIn = mapView.findViewWithTag(GOOGLEMAP_ZOOMIN_BUTTON);

        // we need the parent view of the zoomin/zoomout buttons - it didn't have a tag
        // so we must get the parent reference of one of the zoom buttons
        View zoomInOut = (View) zoomIn.getParent();

        if (zoomInOut != null) {
            moveView(zoomInOut,left,top,right,bottom,horizontal,vertical);
        }
    }
}

如何在Android中移动谷歌地图缩放控制位置？

2 个答案: