android - "W/ActivityThread: handleWindowVisibility: no activity for token android.os.BinderProxy@eb23963"是什么意思？

Question

当我按下按钮更改为另一个 Activity 时，我得到这个:“W/ActivityThread:handleWindowVisibility: token android.os.BinderProxy@eb23963 没有 Activity ”

即使是安卓示例:https://github.com/google-developer-training/android-fundamentals-apps-v2/tree/master/TwoActivities/app/src/main/java/com/example/android/twoactivities

为什么？

Answer 1

请检查第二个 Activity 中您要继续点击按钮的地方是否存在无限循环。

我在使用 rewardVideoAd 时遇到了同样的问题:

Before:

private void loadRewardedVideoAd() {
    if (!mRewardedVideoAd.isLoaded()) {
        //Demo ad
        mRewardedVideoAd.loadAd("ca-app-pub-3940256099942544/5224354917",
                new AdRequest.Builder().build());

        if (ad.getVisibility() == View.VISIBLE) {
            ad.setVisibility(View.INVISIBLE);
        }
        loadRewardedVideoAd();
    }
    else {
        //Toast.makeText(this, "Ad Already loaded", Toast.LENGTH_SHORT).show();

    }
}

After

private void loadRewardedVideoAd() {
    if (!mRewardedVideoAd.isLoaded()) {
        //Demo ad
        mRewardedVideoAd.loadAd("ca-app-pub-3940256099942544/5224354917",
                new AdRequest.Builder().build());

        if (ad.getVisibility() == View.VISIBLE) {
            ad.setVisibility(View.INVISIBLE);
        }
        //loadRewardedVideoAd(); // I removed this line
    }
    else {
        //Toast.makeText(this, "Ad Already loaded", Toast.LENGTH_SHORT).show();

    }
}

希望对您有所帮助!