启动画面加载和加载问题

我在Android Studio项目中的应用程序出现问题。第一次安装我的应用程序时，启动画面成功运行，但是当我关闭应用程序并再次进入我的应用程序（不再安装）时，启动画面正在加载和加载中，应用程序无法移动任何页面。这是我的启动画面：

这是我的笔记本电脑模拟器中的启动屏幕。当我第二次进入应用程序（安装后）时，此屏幕正在加载和加载。有什么解决办法吗。请帮我...：'）

这是我的飞溅活动

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;

import androidx.annotation.NonNull;
import androidx.core.app.ActivityCompat;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;

import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;

import java.util.HashMap;
import java.util.Map;

public class splash extends AppCompatActivity {

    FirebaseAuth mAuth;
    DatabaseReference mDatabaseGEN, mDatabaseSP;

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

        if(ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                || ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED
                || ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED
                || ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED
                || ActivityCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED)
        {
            requestPermissions(
                    new String[]{Manifest.permission.READ_EXTERNAL_STORAGE,
                            Manifest.permission.WRITE_EXTERNAL_STORAGE,
                            Manifest.permission.ACCESS_FINE_LOCATION,
                            Manifest.permission.ACCESS_COARSE_LOCATION,
                            Manifest.permission.CALL_PHONE},
                    2000);
        }else {

            mAuth = FirebaseAuth.getInstance();
            FirebaseUser user = mAuth.getCurrentUser();
            if (user == null) {
                Intent intent = new Intent(splash.this, MainActivity.class);
                overridePendingTransition(R.anim.slow_fade_in, R.anim.bottom_to_top);
                startActivity(intent);
                finish();
            } else {
                String UID = user.getUid();
                divertUser(UID);
            }
        }
    }

    private void divertUser(final String uid) {
        mDatabaseGEN = FirebaseDatabase.getInstance().getReference().child("USERS").child("GENERAL_USERS");
        mDatabaseSP = FirebaseDatabase.getInstance().getReference().child("USERS").child("SERVICE_PROVIDERS");

        mDatabaseGEN.addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                if(dataSnapshot.hasChild(uid)){
                    Intent intent = new Intent(splash.this, genHome.class);
                    overridePendingTransition(R.anim.slow_fade_in, R.anim.bottom_to_top);
                    startActivity(intent);
                    finish();
                }
            }

            @Override
            public void onCancelled(@NonNull DatabaseError databaseError) {

            }
        });

        mDatabaseSP.addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                if(dataSnapshot.hasChild(uid)){
                    Intent intent = new Intent(splash.this, mngHome.class);
                    overridePendingTransition(R.anim.slow_fade_in, R.anim.bottom_to_top);
                    startActivity(intent);
                    finish();
                }
            }

            @Override
            public void onCancelled(@NonNull DatabaseError databaseError) {

            }
        });
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        switch (requestCode) {
            case 2000:
            {
                Map<String, Integer> perms = new HashMap<String, Integer>();
                // Initial

             /* Manifest.permission.READ_EXTERNAL_STORAGE,
                        Manifest.permission.WRITE_EXTERNAL_STORAGE,
                       Manifest.permission.ACCESS_FINE_LOCATION,
                       Manifest.permission.ACCESS_COARSE_LOCATION,
                       Manifest.permission.CALL_PHONE;*/
                perms.put(Manifest.permission.READ_EXTERNAL_STORAGE, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.WRITE_EXTERNAL_STORAGE, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.ACCESS_FINE_LOCATION, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.ACCESS_COARSE_LOCATION, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.CALL_PHONE, PackageManager.PERMISSION_GRANTED);
                // Fill with results
                for (int i = 0; i < permissions.length; i++)
                    perms.put(permissions[i], grantResults[i]);
                // Check for ACCESS_FINE_LOCATION
                if (perms.get(Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.CALL_PHONE) == PackageManager.PERMISSION_GRANTED) {
                    // All Permissions Granted
                    Intent intent = getIntent();
                    finish();
                    startActivity(intent);
                }
            }
            break;
            default:
                super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }
}

这是我的AndroidManifest：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="e.user.madiambu">
    <!--
         The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
         Google Maps Android API v2, but you must specify either coarse or fine
         location permissions for the 'MyLocation' functionality.
    -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="com.google.android.providers.gsf.permisson.READ_GSERVICES" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.CALL_PHONE" />

    <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/AppTheme">
        <activity android:name=".driverHome"></activity>
        <activity android:name=".DriverInformation" />
        <activity android:name=".driver_Code" />
        <!--
             The API key for Google Maps-based APIs is defined as a string resource.
             (See the file "res/values/google_maps_api.xml").
             Note that the API key is linked to the encryption key used to sign the APK.
             You need a different API key for each encryption key, including the release key that is used to
             sign the APK for publishing.
             You can define the keys for the debug and release targets in src/debug/ and src/release/.
        -->
        <meta-data
            android:name="com.google.android.geo.API_KEY"
            android:value="AIzaSyCJM0IvvLoBYupFLHXRVAowSbdPK7Yl830" />

        <activity
            android:name=".MapsActivity"
            android:label="@string/title_activity_maps" />
        <activity android:name=".mngHome" />
        <activity android:name=".genHome" />
        <activity android:name=".SignIn" />
        <activity android:name=".SignUp" />
        <activity
            android:name="com.theartofdev.edmodo.cropper.CropImageActivity"
            android:theme="@style/Base.Theme.AppCompat" />
        <activity android:name=".splash">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>```


please give a solution for this situation ..

**By the way** when I install my app in android phone then same problem occurs.