如何仅显示谷歌地图中的特定地区/地区为Android api v2 [Android] [英] How to show only a specific region/area in google map for android api v2 [Android]

问题描述

如何仅显示Google地图中的特定区域/区域以显示android api v2？所有功能必须在该区域可用，如缩放，拖动等。
所有其他区域必须裁剪掉或不可见。那可能吗？？？
我正在使用eclipse.help请

How to show only a specific region/area in google map for android api v2?.all functionalities must be available in that region like zooming,dragging etc. the all other areas must be cropped off or invisible. Is that possible??? I am using eclipse.help me please

推荐答案

这个技巧适用于我

This trick worked for me

  @Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap;

    //get latlong for corners for specified place
    LatLng one = new LatLng(27.700769, 85.300140);
    LatLng two = new LatLng(27.800769, 85.400140);

    LatLngBounds.Builder builder = new LatLngBounds.Builder();

    //add them to builder
    builder.include(one);
    builder.include(two);

    LatLngBounds bounds = builder.build();

    //get width and height to current display screen
    int width = getResources().getDisplayMetrics().widthPixels;
    int height = getResources().getDisplayMetrics().heightPixels;

    // 20% padding
    int padding = (int) (width * 0.20);

    //set latlong bounds
    mMap.setLatLngBoundsForCameraTarget(bounds);

    //move camera to fill the bound to screen
    mMap.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds, width, height, padding));

    //set zoom to level to current so that you won't be able to zoom out viz. move outside bounds
    mMap.setMinZoomPreference(mMap.getCameraPosition().zoom);
}

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