onResume 中的 NullPointerException，与 AdMob 相关，但不知道为什么

发布于 2024-12-23 21:46:42 字数 1051 浏览 5 评论 0原文

我在应用程序中的以下代码中遇到空指针异常：

@Override
protected void onResume() {
    super.onResume();    //To change body of overridden methods use File | Settings | File Templates.

    // Create the adView
    adView = new AdView(this, AdSize.BANNER, MY_AD_UNIT_ID);

    LinearLayout layout = (LinearLayout) findViewById(R.id.ad_layout);

    // Add the adView to it
    layout.addView(adView); //NullPointerException here

    // Initiate a generic request to load it with an ad
    adView.loadAd(new AdRequest());


    SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
    boolean isButtonLabelsEnabled = sp.getBoolean("isButtonLabelsEnabled", false);
    if (!isButtonLabelsEnabled) {
        stripLabels();
    } else {
        setContentView(R.layout.languageselection);
    }
}

我无法复制此问题，我已经在模拟器、Galaxy S2 设备和 ZTE 刀片上尝试了应用程序中的所有功能，但是我找不到任何问题。

我收到很多用户报告此问题，但他们没有给出任何说明原因，只是当他们尝试打开它时它会强制关闭。

也许我没有正确使用 android 生命周期？

作为解决方法，我将 AdMob 内容包装在 try/catch 中，以便它可以通过。

有什么想法吗？

原文

I'm getting a nullpointer exception in the following code in my application :

@Override
protected void onResume() {
    super.onResume();    //To change body of overridden methods use File | Settings | File Templates.

    // Create the adView
    adView = new AdView(this, AdSize.BANNER, MY_AD_UNIT_ID);

    LinearLayout layout = (LinearLayout) findViewById(R.id.ad_layout);

    // Add the adView to it
    layout.addView(adView); //NullPointerException here

    // Initiate a generic request to load it with an ad
    adView.loadAd(new AdRequest());


    SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
    boolean isButtonLabelsEnabled = sp.getBoolean("isButtonLabelsEnabled", false);
    if (!isButtonLabelsEnabled) {
        stripLabels();
    } else {
        setContentView(R.layout.languageselection);
    }
}

I can't replicate this issue, I've played around with all the features in my app on both the emulator, a galaxy S2 device, and a ZTE blade but I can't find any issues.

I'm getting a lot of users report this, but they don't give any indication to why, just that it forces close when they try to open it.

Perhaps I'm not using the android life-cycle correctly?

As a workaround, I've wrapped the AdMob stuff in a try/catch so it can pass through.

Any ideas?

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多情出卖 2024-12-30 21:46:43

尝试在 onCreate 方法中获取 LinearLayout 对象，而不是在 onResume 方法中获取它。希望这对你有用。

回复收藏 0 原文

你不是我要的菜∠ 2024-12-30 21:46:43

尝试这样：

private LinearLayout layout;

onCreate(){

       layout = (LinearLayout) findViewById(R.id.ad_layout);

}


@Override
protected void onResume() {
    super.onResume();    //To change body of overridden methods use File | Settings | File Templates.

    // Create the adView
    adView = new AdView(this, AdSize.BANNER, MY_AD_UNIT_ID);

    //LinearLayout layout = (LinearLayout) findViewById(R.id.ad_layout);

    // Add the adView to it
    layout.addView(adView); //NullPointerException here

    // Initiate a generic request to load it with an ad
    adView.loadAd(new AdRequest());


    SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
    boolean isButtonLabelsEnabled = sp.getBoolean("isButtonLabelsEnabled", false);
    if (!isButtonLabelsEnabled) {
        stripLabels();
    } else {
        setContentView(R.layout.languageselection);
    }
}

Try like this:

private LinearLayout layout;

onCreate(){

       layout = (LinearLayout) findViewById(R.id.ad_layout);

}


@Override
protected void onResume() {
    super.onResume();    //To change body of overridden methods use File | Settings | File Templates.

    // Create the adView
    adView = new AdView(this, AdSize.BANNER, MY_AD_UNIT_ID);

    //LinearLayout layout = (LinearLayout) findViewById(R.id.ad_layout);

    // Add the adView to it
    layout.addView(adView); //NullPointerException here

    // Initiate a generic request to load it with an ad
    adView.loadAd(new AdRequest());


    SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
    boolean isButtonLabelsEnabled = sp.getBoolean("isButtonLabelsEnabled", false);
    if (!isButtonLabelsEnabled) {
        stripLabels();
    } else {
        setContentView(R.layout.languageselection);
    }
}

回复收藏 0 原文

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