实际上需要在运行时请求“位置”权限（请注意代码中的说明）。
这是经过测试的有效代码，用于请求“位置”权限。
确保导入
android.Manifest：
import android.Manifest;
然后将此代码放在Activity中：
public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;public boolean checkLocationPermission() { if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) { // Should we show an explanation? if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_FINE_LOCATION)) { // Show an explanation to the user *asynchronously* -- don't block // this thread waiting for the user's response! After the user // sees the explanation, try again to request the permission. new alertDialog.Builder(this) .setTitle(R.string.title_location_permission) .setMessage(R.string.text_location_permission) .setPositiveButton(R.string.ok, new DialogInterface.onClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { //prompt the user once explanation has been shown ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, MY_PERMISSIONS_REQUEST_LOCATION); } }) .create() .show(); } else { // No explanation needed, we can request the permission. ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, MY_PERMISSIONS_REQUEST_LOCATION); } return false; } else { return true; }}@Overridepublic void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) { switch (requestCode) { case MY_PERMISSIONS_REQUEST_LOCATION: { // If request is cancelled, the result arrays are empty. if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { // permission was granted, yay! Do the // location-related task you need to do. if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) { //Request location updates: locationManager.requestLocationUpdates(provider, 400, 1, this); } } else { // permission denied, boo! Disable the // functionality that depends on this permission. } return; } }}然后在中调用
checkLocationPermission()方法
onCreate()：
@Overrideprotected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //......... checkLocationPermission();}然后
onResume()，您可以使用和
onPause()完全按照问题中的说明进行操作。
这是一个精简版本，更加简洁：
@Overrideprotected void onResume() { super.onResume(); if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) { locationManager.requestLocationUpdates(provider, 400, 1, this); }}@Overrideprotected void onPause() { super.onPause(); if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) { locationManager.removeUpdates(this); }}
