我的代码：

final VunglePub vunglePub = VunglePub.getInstance();

[...]

final AdConfig globalAdConfig = vunglePub.getGlobalAdConfig();

[...]

final VungleAdEventListener vungleListener = new VungleAdEventListener(){
    @Override
    public void onAdEnd(String placementReferenceId, boolean wasSuccessfulView, boolean wasCallToActionClicked) {
        Toast.makeText(Start.this, "1", Toast.LENGTH_SHORT).show();
    }
    @Override
    public void onAdStart(String placemetReferenceId) {
        Toast.makeText(Start.this, "2", Toast.LENGTH_SHORT).show();
    }
    @Override
    public void onUnableToPlayAd(String placementReferenceId, String reason) {
        Toast.makeText(Start.this, "3", Toast.LENGTH_SHORT).show();
    }
    @Override
    public void onAdAvailabilityUpdate(String placementReferenceId, boolean isAdAvailable) {
        Toast.makeText(Start.this, "4", Toast.LENGTH_SHORT).show();
    }
};

[...]
一次创建：

// initialize Publisher SDK with app id, placement reference id list and init callback handler
    vunglePub.init(this, "XXXXX", new String[] { "PLACEMEXXXXXX" }, new VungleInitListener() {
        @Override
        public void onSuccess() {
        }
        @Override
        public void onFailure(Throwable e){
        }
    });

    vunglePub.clearAndSetEventListeners(vungleListener);
    globalAdConfig.setSoundEnabled(false);
    globalAdConfig.setOrientation(Orientation.autoRotate);
    vunglePub.playAd("PLACEMEXXXXX", globalAdConfig);

我的应用程序显示了一个vungle广告，但是我没有从vunglelistener得到onadend的祝酒词“1”。我找不到我的错误