获取顶部的Activity

一、获取顶部的Activity

private String getTopActivity() {
        String className = null;
        ActivityManager mActivityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
        List list = mActivityManager.getRunningTasks(1);
        if (!list.isEmpty() && list.get(0) != null && list.get(0).topActivity != null) {
            className = list.get(0).topActivity.getClassName();
        }
        return className;
    }