知道了包名，能否得到包里面所有的activity

Question

知道了包名，怎么得到包里面所有的activity对象呢？

Answer 1

还要用到一个包下的所有activity？

Answer 2

   protected List getData(String prefix) {
        List<Map> myData = new ArrayList<Map>();        Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
        mainIntent.addCategory(Intent.CATEGORY_SAMPLE_CODE);        PackageManager pm = getPackageManager();
        List<ResolveInfo> list = pm.queryIntentActivities(mainIntent, 0);        if (null == list)
            return myData;        String[] prefixPath;
        
        if (prefix.equals("")) {
            prefixPath = null;
        } else {
            prefixPath = prefix.split("/");
        }
        
        int len = list.size();
        
        Map<String, Boolean> entries = new HashMap<String, Boolean>();        for (int i = 0; i < len; i++) {
            ResolveInfo info = list.get(i);
            CharSequence labelSeq = info.loadLabel(pm);
            String label = labelSeq != null
                    ? labelSeq.toString()
                    : info.activityInfo.name;
            
            if (prefix.length() == 0 || label.startsWith(prefix)) {
                
                String[] labelPath = label.split("/");                String nextLabel = prefixPath == null ? labelPath[0] : labelPath[prefixPath.length];                if ((prefixPath != null ? prefixPath.length : 0) == labelPath.length - 1) {
                    addItem(myData, nextLabel, activityIntent(
                            info.activityInfo.applicationInfo.packageName,
                            info.activityInfo.name));
                } else {
                    if (entries.get(nextLabel) == null) {
                        addItem(myData, nextLabel, browseIntent(prefix.equals("") ? nextLabel : prefix + "/" + nextLabel));
                        entries.put(nextLabel, true);
                    }
                }
            }
        }        Collections.sort(myData, sDisplayNameComparator);
        
        return myData;
    }
ApiDemos里的一段代码 或许有用