放大当前位置

时间:2020-09-29 21:37:53

标签: android-studio

我想在应用程序启动时自动放大设备的当前位置。现在,使用此代码,我需要触摸“位置”按钮来完成此操作。

    private val LOCATION_PERMISSION_REQUEST = 1
    private fun getLocationAccess() {
        if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
            map.isMyLocationEnabled = true
        }
        else
            ActivityCompat.requestPermissions(this, arrayOf(android.Manifest.permission.ACCESS_FINE_LOCATION), LOCATION_PERMISSION_REQUEST)
    }
    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
        if (requestCode == LOCATION_PERMISSION_REQUEST) {
            if (grantResults.contains(PackageManager.PERMISSION_GRANTED)) {
                if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                    return
                }
                map.isMyLocationEnabled = true
            }
            else {
                Toast.makeText(this, "User has not granted location access permission", Toast.LENGTH_LONG).show()
                finish()
            }
        }
    }
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_maps)
        val mapFragment = supportFragmentManager
                .findFragmentById(R.id.map) as SupportMapFragment
        mapFragment.getMapAsync(this)
    }

谢谢

0 个答案:

没有答案