简单集成七陌的客服 IM SDK，细节待完善

app/src/main/java/com/gh/base/GHActivityLifecycleCallbacksImpl.java

@@ -4,6 +4,7 @@ import android.app.Activity;
 import android.app.Application.ActivityLifecycleCallbacks;
 import android.os.Bundle;
 
+import com.gh.common.im.ImManager;
 import com.gh.common.notifier.Notifier;
 import com.gh.common.util.DataUtils;
 import com.gh.download.DownloadManager;
@@ -36,6 +37,7 @@ public class GHActivityLifecycleCallbacksImpl implements ActivityLifecycleCallba
 
         DataUtils.onResume(activity);
         CurrentActivityHolder.getActivitySet().add(activity);
+        ImManager.updateFloatingWindow();
         //FIXME 这里应该只是部分Activity需要
         try {
             // 初始化gameMap