java - 在类(class)中添加广告 Admob 并从另一个 Activity/类(class)调用

Question

我想在一个类中添加插页式广告或横幅功能，并从其他类访问相同的功能。

我想在所有 Activity 类中调用它

我怎样才能实现这一目标？

package com.example....;
import ...


public class classAds{

private InterstitialAd mInterstitialAd;


public void mobileAds()
{
    MobileAds.initialize(this,
            "ca-app-pub-3940256099942544~3347511713");

    mInterstitialAd = new InterstitialAd(this);
    mInterstitialAd.setAdUnitId("ca-app-pub-.............");

}    

我尝试了这段代码，但“this”中的问题不被接受

我也尝试过改成

classAds.this
getContext()
getActivity()

Answer 1

我建议两种方法

1.像这样创建一个单独的Application类

public class ApplicationClass extends Application {

    private static ApplicationClass mInstance;

    public static Context getContext() {
        return mInstance;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        mInstance = this;
    }

}

然后像这样更改您的 ClassAds

public class classAds{

private InterstitialAd mInterstitialAd;


public void mobileAds()
{
    MobileAds.initialize(ApplicationClass.getContext,
            "ca-app-pub-3940256099942544~3347511713");

    mInterstitialAd = new InterstitialAd(ApplicationClass.getContext);
    mInterstitialAd.setAdUnitId("ca-app-pub-.............");

} 

将 ClassAd 更改为

public class classAds{

private InterstitialAd mInterstitialAd;

public void mobileAds(Activity activity)
{
    MobileAds.initialize(activity,
            "ca-app-pub-3940256099942544~3347511713");

    mInterstitialAd = new InterstitialAd(activity);
    mInterstitialAd.setAdUnitId("ca-app-pub-.............");

   } 

并在您的 Activity 类中调用该方法

ClassAds classAds = new ClassAds;
classAds.mobileAds(this);