Android 使用地图时的权限请求

在初始化自己位置的时候请求定位权限：
Constants.ACCESS_FINE_LOCATION_COMMANDS_REQUEST_CODE是自定义的常量值==0x01

                    if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)                            != PackageManager.PERMISSION_GRANTED) {                        //申请WRITE_EXTERNAL_STORAGE权限                        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, Constants.ACCESS_FINE_LOCATION_COMMANDS_REQUEST_CODE);                    } else {                     /**                     * 初始化用户位置                     */                        setMyLoctionPicture();                    }

 /**     * 初始化用户位置     */    public void setMyLoctionPicture(){       LogUtils.d(TAG,"setMyLocationPicture() is running");        if(aMap==null){            aMap=mapview.getMap();        }        MyLocationStyle locationStyle = new MyLocationStyle();        locationStyle.myLocationIcon(BitmapDescriptorFactory.fromResource(R.mipmap.location_marker));        locationStyle.strokeColor(Color.BLACK);        locationStyle.radiusFillColor(Color.argb(100, 0, 0, 100));        locationStyle.strokeWidth(1.0f);        aMap.setMyLocationStyle(locationStyle);        aMap.setLocationSource(this);        UiSettings uiSettings = aMap.getUiSettings();        uiSettings .setMyLocationButtonEnabled(true);        aMap.setMyLocationEnabled(true);        aMap.setInfoWindowAdapter(this);        aMap.setOnMarkerClickListener(this);    }

这样是确保在Android高版本时定位权限不会被屏蔽；导致定位和导航用不了情况。

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