我一直在遵循一个应用程序，获得当前的纬度和经度教程。在代码的这一点上，他的应用程序运行得非常好。然而，当我测试我的，它失败了。我不断收到一个错误，要求我添加一个权限检查，但即使添加也不起作用。
活动\u main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:animateLayoutChanges="true"
    android:gravity="center"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/buttonGetCurrentLocation"
        style="@style/Widget.AppCompat.Button.Colored"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:backgroundTint="#851111"
        android:text="@string/get_current_location" />

    <ProgressBar
        android:id="@+id/progressBar"
        android:layout_width="38dp"
        android:layout_height="38dp"
        android:layout_marginTop="18dp"
        android:visibility="gone"
        />

    <TextView
        android:id="@+id/textLatLong"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="18dp"
        android:layout_gravity="center"
        android:textColor="@android:color/black"
        android:textSize="18dp"
        android:textStyle="bold"/>

    <TextView
        android:id="@+id/textAddress"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="18dp"
        android:layout_marginEnd="18dp"
        android:gravity="center"
        android:textColor="@color/design_default_color_primary"
        android:textSize="16sp"
        android:textStyle="bold"
        />

</LinearLayout>

主活动.java

package com.example.gpsapp;

    import androidx.annotation.NonNull;
    import androidx.appcompat.app.AppCompatActivity;
    import androidx.core.app.ActivityCompat;
    import androidx.core.content.ContextCompat;

    import android.Manifest;
    import android.content.pm.PackageManager;
    import android.os.Bundle;
    import android.os.Looper;
    import android.view.View;
    import android.widget.ProgressBar;
    import android.widget.TextView;
    import android.widget.Toast;

    import com.google.android.gms.location.LocationCallback;
    import com.google.android.gms.location.LocationRequest;
    import com.google.android.gms.location.LocationResult;
    import com.google.android.gms.location.LocationServices;

    public class MainActivity extends AppCompatActivity {

        private static final int REQUEST_CODE_LOCATION_PERMISSION = 1;
        private TextView textLatLong;
        private ProgressBar progressBar;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);

            textLatLong = findViewById(R.id.textLatLong);
            progressBar = findViewById(R.id.progressBar);

            findViewById(R.id.buttonGetCurrentLocation).setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (ContextCompat.checkSelfPermission(
                            getApplicationContext(), Manifest.permission.ACCESS_FINE_LOCATION
                    ) != PackageManager.PERMISSION_GRANTED) {
                        ActivityCompat.requestPermissions(
                                MainActivity.this,
                                new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
                                REQUEST_CODE_LOCATION_PERMISSION
                        );
                    } else {
                        getCurrentLocation();
                    }
                }
            });
        }

        @Override
        public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
            if (requestCode == REQUEST_CODE_LOCATION_PERMISSION && grantResults.length > 0) {
                if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    getCurrentLocation();
                } else {
                    Toast.makeText(this, "Permission denied!", Toast.LENGTH_SHORT).show();
                }
            }
        }

        private void getCurrentLocation() {

            progressBar.setVisibility(View.VISIBLE);

            LocationRequest locationRequest = new LocationRequest();
            locationRequest.setInterval(10000);
            locationRequest.setFastestInterval(3000);
            locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                // TODO: Consider calling
                //    ActivityCompat#requestPermissions
                // here to request the missing permissions, and then overriding
                //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
                //                                          int[] grantResults)
                // to handle the case where the user grants the permission. See the documentation
                // for ActivityCompat#requestPermissions for more details.
                return;
            }
            LocationServices.getFusedLocationProviderClient(MainActivity.this)
                    .requestLocationUpdates(locationRequest, new LocationCallback() {

                        @Override
                        public void onLocationResult(LocationResult locationResult) {
                            super.onLocationResult(locationResult);
                            LocationServices.getFusedLocationProviderClient(MainActivity.this)
                                    .removeLocationUpdates(this);
                            if (locationResult != null && locationResult.getLocations().size() > 0) {
                                int latestLocationIndex = locationResult.getLocations().size() - 1;
                                double latitude =
                                        locationResult.getLocations().get(latestLocationIndex).getLatitude();
                                double longitude =
                                        locationResult.getLocations().get(latestLocationIndex).getLongitude();
                                textLatLong.setText(
                                        String.format(
                                                "Latitude: %s\nLongitude: %s",
                                                latitude,
                                                longitude
                                        )
                                );
                            }

                            progressBar.setVisibility(View.GONE);
                        }
                    }, Looper.getMainLooper());
        }
    }

androidmainifest.xml文件

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="com.example.gpsapp">

        <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
        <uses-permission android:name="android.permission.INTERNET"/>

        <application
            android:allowBackup="true"
            android:icon="@mipmap/ic_launcher"
            android:label="@string/app_name"
            android:roundIcon="@mipmap/ic_launcher_round"
            android:supportsRtl="true"
            android:theme="@style/Theme.GPSApp"
            android:usesCleartextTraffic="true">
            <activity android:name=".MainActivity">
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />

                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
        </application>

    </manifest>