我正在尝试在我的应用中实现google maps功能，在该应用中，当应用启动时，位置设置对话框会显示位置是否未激活。当用户点击确定按钮时，应该会获取用户当前位置
到目前为止，我所做的是当位置不活动时显示位置对话框，如果我单击确定，则它不要求获取位置的权限，并且当我单击否时，谢谢。当我单击这两个按钮中的任何一个时，它没有任何作用。
我想要什么：
1）当我单击确定时，它应征得获取用户位置的权限 并获取当前位置。
2）当我单击否，谢谢时，它应该显示吐司来描述为什么必须使用主动位置。
这是我的代码：
我正在分段执行
public class Home extends Fragment implements GoogleApiClient.ConnectionCallbacks,GoogleApiClient.OnConnectionFailedListener {
GoogleApiClient mGoogleApiClient;
LocationRequest locationRequest;
private static final int ACCESS_FINE_LOCATION_CODE = 3310;
private static final int REQUEST_RESOLVE_ERROR = 555;
public Home() {
// Required empty public constructor
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_home, container, false);
mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
.addApi(LocationServices.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this).build();
mGoogleApiClient.connect();
return view;
}
@Override
public void onStart() {
super.onStart();
if(mGoogleApiClient == null){
mGoogleApiClient.connect();
}
}
@Override
public void onStop() {
super.onStop();
if(mGoogleApiClient != null){
mGoogleApiClient.disconnect();
}
}
@Override
public void onConnected(@Nullable Bundle bundle) {
if(mGoogleApiClient.isConnected()){
settingsRequest();
}
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
private void settingsRequest(){
LocationRequest locationRequest = LocationRequest.create();
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationRequest.setInterval(30 * 1000);
locationRequest.setFastestInterval(5 * 1000);
LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder().addLocationRequest(locationRequest);
builder.setAlwaysShow(true);
final PendingResult<LocationSettingsResult> result = LocationServices.SettingsApi.checkLocationSettings(mGoogleApiClient, builder.build());
result.setResultCallback(new ResultCallback<LocationSettingsResult>() {
@Override
public void onResult(@NonNull LocationSettingsResult result) {
Status status = result.getStatus();
switch (status.getStatusCode()){
case LocationSettingsStatusCodes.SUCCESS:
if (mGoogleApiClient.isConnected()){
// check if the device has OS Marshmellow or greater than
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP_MR1) {
if (ActivityCompat.checkSelfPermission(getActivity(), android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity(),
android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(getActivity(), new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION}, ACCESS_FINE_LOCATION_CODE);
}
else {
}
}
else {
}
}
break:
case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
try {
// Show the dialog by calling startResolutionForResult(),
// and check the result in onActivityResult().
status.startResolutionForResult(getActivity(), REQUEST_RESOLVE_ERROR);
} catch (IntentSender.SendIntentException e) {
// Ignore the error.
}
break;
}
}
});
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
switch (requestCode){
case 3310:
if(grantResults.length > 0){
for (int i = 0, len = permissions.length; i < len; i++){
if (grantResults[i] == PackageManager.PERMISSION_DENIED) {
}
else if (grantResults[i] == PackageManager.PERMISSION_GRANTED) {
}
else {
getActivity().finish();
}
}
}
}
return;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch(requestCode){
case REQUEST_RESOLVE_ERROR:
switch(resultCode){
case Activity.RESULT_OK:
break;
case Activity.RESULT_CANCELED:
break;
}
break;
}
}
}
请让我知道我做错了什么，或者需要在上述代码中添加任何内容。
谢谢
答案 0 :(得分：1)
请尝试以下代码：您可以为我的回答提供帮助
Gradle
implementation 'gun0912.ted:tedpermission:2.1.0'
在您的家庭片段中：
public class Home extends Fragment implements GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener,
LocationListener {
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;
private Location locationData;
private static final long TIME_INTERVAL_GET_LOCATION = 1000 * 5; // 1 Minute
private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 5000;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home, null);
TedPermission.with(getActivity())
.setPermissionListener(permissionlistener)
.setDeniedMessage("If you reject permission,you can not use this service\n\nPlease turn on permissions at [Setting] > [Permission]")
.setPermissions(Manifest.permission.ACCESS_FINE_LOCATION)
.check();
// Create the LocationRequest object
mLocationRequest = LocationRequest.create()
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
.setInterval(TIME_INTERVAL_GET_LOCATION) // 3 seconds, in milliseconds
.setFastestInterval(TIME_INTERVAL_GET_LOCATION); // 1 second, in milliseconds
mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
return rootView;
}
@Override
public void onResume() {
super.onResume();
}
PermissionListener permissionlistener = new PermissionListener() {
@Override
public void onPermissionGranted() {
if (!mGoogleApiClient.isConnected()) {
mGoogleApiClient.connect();
locationChecker(mGoogleApiClient, getActivity());
}
}
@Override
public void onPermissionDenied(ArrayList<String> deniedPermissions) {
}
};
@Override
public void onConnected(@Nullable Bundle bundle) {
if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
FusedLocationProviderClient mFusedLocationClient = LocationServices.getFusedLocationProviderClient(getActivity());
mFusedLocationClient.requestLocationUpdates(mLocationRequest, new LocationCallback() {
@Override
public void onLocationResult(LocationResult locationResult) {
locationData = locationResult.getLastLocation();
}
}, null);
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
if (connectionResult.hasResolution() && getActivity() instanceof Activity) {
try {
Activity activity = (Activity) getActivity();
connectionResult.startResolutionForResult(activity, CONNECTION_FAILURE_RESOLUTION_REQUEST);
} catch (Exception e) {
e.printStackTrace();
}
} else {
Log.i("", "Location services connection failed with code " + connectionResult.getErrorCode());
}
}
public void locationChecker(GoogleApiClient mGoogleApiClient, final Activity activity) {
LocationRequest locationRequest = LocationRequest.create();
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationRequest.setInterval(30 * 1000);
locationRequest.setFastestInterval(5 * 1000);
LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()
.addLocationRequest(locationRequest);
builder.setAlwaysShow(true);
PendingResult<LocationSettingsResult> result =
LocationServices.SettingsApi.checkLocationSettings(mGoogleApiClient, builder.build());
result.setResultCallback(new ResultCallback<LocationSettingsResult>() {
@Override
public void onResult(LocationSettingsResult result) {
final Status status = result.getStatus();
final LocationSettingsStates state = result.getLocationSettingsStates();
switch (status.getStatusCode()) {
case LocationSettingsStatusCodes.SUCCESS:
// All location settings are satisfied. The client can initialize location
// requests here.
break;
case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
// Location settings are not satisfied. But could be fixed by showing the user
// a dialog.
try {
// Show the dialog by calling startResolutionForResult(),
// and check the result in onActivityResult().
status.startResolutionForResult(activity, 1000);
} catch (IntentSender.SendIntentException e) {
// Ignore the error.
}
break;
case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
// Location settings are not satisfied. However, we have no way to fix the
// settings so we won't show the dialog.
break;
}
}
});
}
@Override
public void onLocationChanged(Location location) {
Log.w("==>UpdateLocation<==", "" + String.format("%.6f", location.getLatitude()) + "," + String.format("%.6f", location.getLongitude()));
locationData = location;
}
}
输出
您可以在对象locationData中获得位置