如何通过 OnCreate 方法显示 Appodeal 广告？

Question

我已将 Appodeal 集成到我的 android 应用中。

我正在尝试在 OnCreate 方法中显示横幅广告，但它仅在我重新加载活动时才有效。

有人知道如何解决这个问题吗？

我尝试通过在启动时从不同的 Activity 加载 Activity 来执行其他方法，但没有奏效。

主要活动代码：

package com.jodastudios.universalskyremote;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.ViewPager;

import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.util.AttributeSet;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;

import com.appodeal.ads.AdType;
import com.appodeal.ads.Appodeal;
import com.appodeal.ads.api.App;
import com.google.android.material.tabs.TabLayout;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

    public static final String TAG = "MainActivity";
    private ViewPager viewPager;
    private TabLayout tabLayout;
    private PageAdapter pageAdapter;


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

        tabLayout = (TabLayout) findViewById(R.id.tabLayout);
        viewPager = (ViewPager) findViewById(R.id.viewPager);

        pageAdapter = new PageAdapter(getSupportFragmentManager(),tabLayout.getTabCount());

        viewPager.setAdapter(pageAdapter);


        tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                viewPager.setCurrentItem(tab.getPosition());
            }

            @Override
            public void onTabUnselected(TabLayout.Tab tab) {

            }

            @Override
            public void onTabReselected(TabLayout.Tab tab) {

            }
        });

        viewPager.setOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));

        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());

        String ip = sp.getString("IP_ADDRESS","_");

        if(ip == "_"){

            AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
            builder.setTitle("First time use");
            builder.setCancelable(false);
            builder.setMessage("Welcome to our app! To get started, go to Settings and change your IP address or search for Sky boxes automatically");
            builder.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    Intent intent=new Intent(MainActivity.this,PreferenceActivity.class);
                    startActivity(intent);
                }
            });
            builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                }
            });
            builder.show();
        }

        Appodeal.initialize(this, "XXXXXXXX", Appodeal.BANNER | Appodeal.INTERSTITIAL, true);

        Appodeal.setTesting(true);

        Appodeal.setBannerViewId(R.id.appodealBannerView);


        if(Appodeal.isLoaded(Appodeal.BANNER)){
            Appodeal.show(this,Appodeal.BANNER_BOTTOM);
            Toast toast = Toast.makeText(this,"Showed banner",Toast.LENGTH_SHORT);
            toast.show();
        }

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main,menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
        if(item.getItemId() == R.id.settings){
            Intent intent = new Intent(getApplicationContext(),PreferenceActivity.class);
            startActivity(intent);
        }
        if(item.getItemId() == R.id.about){
            AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
            builder.setTitle("About this app");
            builder.setMessage("Developed by Joda Studios\nPublished by Joda Studios");
            builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                }
            });
            builder.show();
        }
        if(item.getItemId() == R.id.help){
            Intent intent = new Intent(getApplicationContext(),HelpPage.class);
            startActivity(intent);
        }
        if(item.getItemId() == R.id.saved){
            Intent intent = new Intent(getApplicationContext(),SavedChannels.class);
            startActivity(intent);
        }
        return super.onOptionsItemSelected(item);
    }
}