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我想谷歌Analytics(分析)在我的應用集成及繼起的here一切的教程是設置:無法引用((MainActivity)getApplication())。getTracker(MainActivity.TrackerName.APP_TRACKER);
我有延伸活動,並有連接3個選項卡片段,我初始化代碼在這個活動就像一個MainActivity:
private static final String PROPERTY_ID = "UA-xxxxxx";
//Logging TAG
private static final String TAG = "MyApp";
public static int GENERAL_TRACKER = 0;
public enum TrackerName {
APP_TRACKER,
GLOBAL_TRACKER,
ECOMMERCE_TRACKER,
}
HashMap<TrackerName, Tracker> mTrackers = new HashMap<TrackerName, Tracker>();
public MainActivity() {
super();
}
synchronized Tracker getTracker(TrackerName trackerId) {
if (!mTrackers.containsKey(trackerId)) {
GoogleAnalytics analytics = GoogleAnalytics.getInstance(this);
Tracker t = (trackerId == TrackerName.APP_TRACKER) ? analytics.newTracker(R.xml.app_tracker)
: (trackerId == TrackerName.GLOBAL_TRACKER) ? analytics.newTracker(PROPERTY_ID)
: analytics.newTracker(R.xml.ecommerce_tracker);
mTrackers.put(trackerId, t);
}
return mTrackers.get(trackerId);
}
現在在標籤中的一個我試圖做的事:
((MainActivity) getApplication()).getTracker(MainActivity.TrackerName.APP_TRACKER);
但是我得到以下幾點:
無法從應用程序轉換到上面的代碼行中的MainActivity。任何提示?我嘗試使用它的片段有以下簽名:
public class FragmentTab1 extends Fragment