我的应用程序需要获取用户的当前位置，该位置使用下面的当前代码做得非常好但是在MarshMallow和Nougat上崩溃。所以我添加了运行时权限，现在它没有崩溃，但也没有获取当前位置。正在(isReadStorageAllowed())中检查权限，然后检查GPS设置。if ((checkConnection()))检查互联网是否可用，然后连接到GoogliAPI客户端..请帮助我
public class PreEstimateBill extends Activity implements GoogleApiClient.ConnectionCallbacks,GoogleApiClient.OnConnectionFailedListener,LocationListener {
ArrayList<String> carCategory;
GoogleApiClient mGoogleApiClient;
LocationRequest mLocationRequest;
LatLng loc;
TextView bill_amt, bill_amt_rs, bill_amt_dash, bill_amt_upper, bill_amt_rs_upper, time_mins, time;
Button bt_est;
int FLAG = -1, round_time, round_bill_upper, round_bill_lower;
private Location mCurrentLocation;
private AutoCompleteTextView pickup_search, drop_search;
TextView coming_soon;
ArrayList<String> names;
double newLat_pickup, newLng_pickup, newLat_drop, newLng_drop, defaultPick_lat, defaultPick_Lng, newLat_default_pickup, newLng_default_pickup;
private PlacesAutoCompleteAdapter mAutocompleteAdapter;
private String place, newAddress_pickup, newAddress_drop, newAddress_pickup_default, newAddress_default_pickup;
double pickup_drop_distance, pickup_drop_time, extra_time, extra_dist, fare_lower, fare, tax, fare_upper;
boolean PICKFLAG = false, DROPFLAG = false;
int PICKFLAGVAL = 0, DROPFLAGVAL = 0;
Location l, m;
View dotted_line;
private int REQUEST_LOCATION = 2;
private static int REQUEST_CODE_RECOVER_PLAY_SERVICES = 200;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pre_estimate_bill);
pickup_search = (AutoCompleteTextView) findViewById(R.id.tv_startPoint);
drop_search = (AutoCompleteTextView) findViewById(R.id.tv_destPoint);
bill_amt = (TextView) findViewById(R.id.bill_amt);
bill_amt_rs = (TextView) findViewById(R.id.bill_amt_rs);
bt_est = (Button) findViewById(R.id.bt_est_2);
bill_amt_upper = (TextView) findViewById(R.id.bill_amt_upper);
bill_amt_dash = (TextView) findViewById(R.id.bill_amt_dash);
bill_amt_rs_upper = (TextView) findViewById(R.id.bill_amt_rs_upper);
time_mins = (TextView) findViewById(R.id.time_mins);
time = (TextView) findViewById(R.id.time);
dotted_line = findViewById(R.id.lastLine);
coming_soon = (TextView) findViewById(R.id.tag_coming_soon);
carCategory = new ArrayList<String>();
//m=new Location(22.5851, 88.4222,"kolkata");//putting dummy latlong values
pickup_search.setThreshold(0);
drop_search.setThreshold(0);
names = new ArrayList<String>();
mAutocompleteAdapter = new PlacesAutoCompleteAdapter(this,
android.R.layout.simple_list_item_1);
pickup_search.setAdapter(mAutocompleteAdapter);
drop_search.setAdapter(mAutocompleteAdapter);
////////taking runtime permission for marshmallow and nougat to access location////////
if (isReadStorageAllowed()) {
//If permission is already having then showing the toast
Toast.makeText(PreEstimateBill.this, "You already have the permission", Toast.LENGTH_LONG).show();
//buildGoogleApiClient();
//Existing the method with return
return;
}
else {
//If the app has not the permission then asking for the permission
requestLocationPermission();
}
/////////////////////////////////////////////////////////////////////////////////////
LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
if( !locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER) ) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("GPS NOT FOUND"); // GPS not found
builder.setMessage("Please check your location settings"); // Want to enable?
builder.setPositiveButton("YES", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int i) {
startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));
}
});
builder.setNegativeButton("NO", null);
builder.create().show();
return;
}
if ((checkConnection())) {
//if (isReadStorageAllowed()) {
// buildGoogleApiClient();
try {
//statusCheck();
//if (isLocationServiceEnabled()) {
Log.d("Build GoogleAPI:", "Executing");
if (mGoogleApiClient == null) {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}
if (mGoogleApiClient != null && !mGoogleApiClient.isConnected())
mGoogleApiClient.connect();
//android.location.Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
//}
}catch(Exception e){
//Toast.makeText(this, "Google API client build error", Toast.LENGTH_LONG).show();
e.printStackTrace();
}
Toast.makeText(PreEstimateBill.this, "You are connected", Toast.LENGTH_LONG).show();
}else{
Toast.makeText(this, "No internet.Please check your internet connection and try again", Toast.LENGTH_LONG).show();
}
/////////////check if location is enabled/////////////////////////////////////////////
/* if (checkGooglePlayServices()) {
Toast.makeText(this, "Google Play Services installed",
Toast.LENGTH_SHORT).show();
}*/
/////////////////////////////////////////////////////////////////////////////////
setListener();
if (mCurrentLocation != null) {
updateLatLong(mCurrentLocation);
}
// }
}
@Override
protected void onResume() {
super.onResume();
setListener();
}
/* @Override
protected void onStart() {
super.onStart();
}*/
@Override
public void onStop() {
super.onStop();
if (mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
mGoogleApiClient.disconnect();
}
}
@Override
public void onConnected(Bundle bundle) {
//Toast.makeText(this,"onConnected",Toast.LENGTH_SHORT).show();
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
android.location.Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
mGoogleApiClient);
if (mLastLocation != null) {
loc = new LatLng(mLastLocation.getLatitude(), mLastLocation.getLongitude());
defaultPick_lat = mLastLocation.getLatitude();
defaultPick_Lng = mLastLocation.getLongitude();
}
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(5000); //5 seconds
mLocationRequest.setFastestInterval(3000); //3 seconds
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
mLocationRequest.setSmallestDisplacement(0.2F); //1/10 meter
pickup_search.setText(getCompleteAddressString(mLastLocation.getLatitude(), mLastLocation.getLongitude()));
newAddress_pickup_default = pickup_search.getText().toString();
place = newAddress_pickup_default;
new GeodecoderTask(place).execute();
FLAG = 2;
pickDefaultVal();
}
}
@Override
public void onConnectionSuspended(int i) {
// Toast.makeText(this,"onConnectionSuspended",Toast.LENGTH_SHORT).show();
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
// Toast.makeText(this,"onConnectionFailed",Toast.LENGTH_SHORT).show();
// mGoogleApiClient.connect();
}
@Override
public void onLocationChanged(android.location.Location location) {
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
public boolean checkConnection() {
boolean isConnected;
ConnectivityManager cn = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo nf = cn.getActiveNetworkInfo();
if (nf != null && nf.isConnected() == true) {
isConnected=true;
} else {
isConnected=false;
}
return isConnected;
}
public boolean sameLoc()
{
Toast.makeText(this, "Pick Up and Drop are same", Toast.LENGTH_LONG).show();
bill_amt_rs.setVisibility(View.INVISIBLE);
bill_amt.setVisibility(View.INVISIBLE);
bt_est.setVisibility(View.INVISIBLE);
bill_amt_rs_upper.setVisibility(View.INVISIBLE);
bill_amt_upper.setVisibility(View.INVISIBLE);
bill_amt_dash.setVisibility(View.INVISIBLE);
time.setVisibility(View.INVISIBLE);
time_mins.setVisibility(View.INVISIBLE);
coming_soon.setVisibility(View.INVISIBLE);
dotted_line.setVisibility(View.INVISIBLE);//dotted line
return true;
}
private boolean isReadStorageAllowed() {
//Getting the permission status
int result = ContextCompat.checkSelfPermission(this,Manifest.permission.ACCESS_FINE_LOCATION);
//If permission is granted returning true
if (result == PackageManager.PERMISSION_GRANTED)
return true;
//If permission is not granted returning false
return false;
}
//Requesting permission
private void requestLocationPermission(){
if (ActivityCompat.shouldShowRequestPermissionRationale(this,Manifest.permission.ACCESS_FINE_LOCATION)){
//If the user has denied the permission previously your code will come to this block
//Here you can explain why you need this permission
//Explain here why you need this permission
}
//And finally ask for the permission
ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.ACCESS_FINE_LOCATION},REQUEST_LOCATION);
}
//This method will be called when the user will tap on allow or deny
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
//Checking the request code of our request
if(requestCode == REQUEST_LOCATION){
//If permission is granted
if(grantResults.length >0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
//Displaying a toast
//buildGoogleApiClient();
Toast.makeText(this,"Permission granted now you can read the storage",Toast.LENGTH_LONG).show();
}
}
}
/* private boolean checkGooglePlayServices(){
int checkGooglePlayServices = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (checkGooglePlayServices != ConnectionResult.SUCCESS) {
/*
* Google Play Services is missing or update is required
* return code could be
* SUCCESS,
* SERVICE_MISSING, SERVICE_VERSION_UPDATE_REQUIRED,
* SERVICE_DISABLED, SERVICE_INVALID.
*/
// GooglePlayServicesUtil.getErrorDialog(checkGooglePlayServices,this, REQUEST_CODE_RECOVER_PLAY_SERVICES).show();
/* return false;
}
return true;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_CODE_RECOVER_PLAY_SERVICES) {
if (resultCode == RESULT_OK) {
// Make sure the app is not already connected or attempting to connect
if (!mGoogleApiClient.isConnecting() &&
!mGoogleApiClient.isConnected()) {
mGoogleApiClient.connect();
}
} else if (resultCode == RESULT_CANCELED) {
Toast.makeText(this, "Google Play Services must be installed.",
Toast.LENGTH_SHORT).show();
finish();
}
}
}*/
/* public void statusCheck() {
final LocationManager manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
buildAlertMessageNoGps();
}
}
private void buildAlertMessageNoGps() {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Your GPS seems to be disabled, do you want to enable it?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(final DialogInterface dialog, final int id) {
startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(final DialogInterface dialog, final int id) {
dialog.cancel();
}
});
final AlertDialog alert = builder.create();
alert.show();
}*/
/* public boolean isLocationServiceEnabled() {
LocationManager lm = (LocationManager)
this.getSystemService(Context.LOCATION_SERVICE);
String provider = lm.getBestProvider(new Criteria(), true);
return !LocationManager.PASSIVE_PROVIDER.equals(provider);
}*/
}