@Jas: 我没有那个代码了，但我找到了一些接近的东西。我已经做了这个来搜索我的应用程序的“组件”，它们只是具有给定类别的活动。

private List<String> getInstalledComponentList() {
    Intent componentSearchIntent = new Intent();
    componentSearchIntent.addCategory(Constants.COMPONENTS_INTENT_CATEGORY);
    componentSearchIntent.setAction(Constants.COMPONENTS_INTENT_ACTION_DEFAULT);
    List<ResolveInfo> ril = getPackageManager().queryIntentActivities(componentSearchIntent, PackageManager.MATCH_DEFAULT_ONLY);
    List<String> componentList = new ArrayList<String>();
    Log.d(LOG_TAG, "Search for installed components found " + ril.size() + " matches.");
    for (ResolveInfo ri : ril) {
        if (ri.activityInfo != null) {
            componentList.add(ri.activityInfo.packageName);// + ri.activityInfo.name);
            Log.d(LOG_TAG, "Found installed: " + componentList.get(componentList.size()-1));
        }
    }
    return componentList;
}

我已经注释了它获取活动名称的部分，但它非常简单。

我有另一个解决方案:

ArrayList<AppInfo> myAppsToUpdate;

    // How to get the system and the user apps.
    public ArrayList<AppInfo> getAppsToUpdate() {

        PackageManager pm = App.getContext().getPackageManager();
        List<ApplicationInfo> installedApps = pm.getInstalledApplications(0);
        myAppsToUpdate = new ArrayList<AppInfo>();
        for (ApplicationInfo aInfo : installedApps) {

            if ((aInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
                // System apps 
            } else {
                // Users apps
                AppInfo appInfo = new AppInfo();
                appInfo.setAppName(aInfo.loadLabel(pm).toString());
                appInfo.setPackageName(aInfo.packageName);
                appInfo.setLaunchActivity(pm.getLaunchIntentForPackage(aInfo.packageName).toString());
                try {
                    PackageInfo info = pm.getPackageInfo(aInfo.packageName, 0);
                    appInfo.setVersionName(info.versionName.toString());
                    appInfo.setVersionCode("" + info.versionCode);
                    myAppsToUpdate.add(appInfo);
                } catch (NameNotFoundException e) {
                    Log.e("ERROR", "we could not get the user's apps");
                }

            }
        }
        return myAppsToUpdate;
    }

另一种过滤系统应用程序的方法(适用于king9981的例子):

/**
 * Return whether the given PackageInfo represents a system package or not.
 * User-installed packages (Market or otherwise) should not be denoted as
 * system packages.
 * 
 * @param pkgInfo
 * @return
 */
private boolean isSystemPackage(PackageInfo pkgInfo) {
    return ((pkgInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
}

你可以通过下面的代码找到Android设备中已安装的应用程序列表，“packageInfo”包含已安装的应用程序信息 在设备。我们可以为安装的应用程序检索Intent packageinfo对象可以使用startactivity(intent)来启动 应用程序。这取决于你如何组织UI或Listview 或显示数据表格。基于位置的点击事件，你可以检索意图 对象和启动活动意图。

final PackageManager pm = getPackageManager();

List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);


for (ApplicationInfo packageInfo : packages) 

{
 if(pm.getLaunchIntentForPackage(packageInfo.packageName)!= null &&   

                   !pm.getLaunchIntentForPackage(packageInfo.packageName).equals(""))


{

    System.out.println("Package Name :" + packageInfo.packageName);

    System.out.println("Launch Intent For Package :"   +  
                  pm.getLaunchIntentForPackage(packageInfo.packageName));

    System.out.println("Application Label :"   + pm.getApplicationLabel(packageInfo));

    System.out.println("Application Label :"   + 
                           pm.getApplicationIcon(packageInfo.packageName).toString());

    System.out.println("i : "+i);

    /*if(i==2)

    {
         startActivity(pm.getLaunchIntentForPackage(packageInfo.packageName));

     break;

    }*/

    i++;

}
}

我需要过滤掉用户并不真正使用的系统应用程序(例如。“com.qualcomm。服务”，“更新服务”等)。最后，我添加了另一个条件来过滤应用程序列表。我只是检查了应用程序是否有“启动意图”。

因此，结果代码看起来像……

PackageManager pm = getPackageManager();
        List<ApplicationInfo> apps = pm.getInstalledApplications(PackageManager.GET_GIDS);

        for (ApplicationInfo app : apps) {
            if(pm.getLaunchIntentForPackage(app.packageName) != null) {
                // apps with launcher intent
                if((app.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0) {
                    // updated system apps

                } else if ((app.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
                    // system apps

                } else {
                    // user installed apps

                }
                appsList.add(app);
            }

        }

你可以用这个:

PackageManager pm = getApplicationContext().getPackageManager();
                List<ResolveInfo> activityList = pm.queryIntentActivities(shareIntent, 0);
                for (final ResolveInfo app : activityList) 
                {
                   if ((app.activityInfo.name).contains("facebook")) 
                   {
                     // facebook  
                   }

                   if ((app.activityInfo.name).contains("android.gm")) 
                   {
                     // gmail  
                   }

                   if ((app.activityInfo.name).contains("mms")) 
                   {
                     // android messaging app
                   }

                   if ((app.activityInfo.name).contains("com.android.bluetooth")) 
                   {
                     // android bluetooth  
                   }
                }