如何在android中制作应用程序锁定应用程序? [英] How to make app lock app in android?

问题描述

我必须为 Android 开发一个应用程序锁，用户可以在其中阻止应用程序，而其他用户在没有访问密钥的情况下无法访问这些应用程序.

I have to develop an app locker for Android where the user can block apps and other users can not access these apps without an access key.

我安装了一个应用，但我不知道如何锁定这个应用.

I have installed an app but I don't know how to lock this app.

请给我建议.

推荐答案

这不是堆栈溢出的工作原理.不尝试任何事情都无法提出完整的解决方案.

This is not how stack overflow works. You can not ask a complete solution without even trying anything.

对于最基本的应用版本，您需要执行三个功能.

For the most basic version of your app, you need to perform three functions.

1. 获取设备上所有已安装应用程序的列表，并在带有复选框的 ListView 中显示它们.如果用户检查任何应用程序，将应用程序添加到不同的列表，比如 BlockedAppsList(这将是用户想要阻止的应用程序列表).您可以使用以下代码安装所有应用:

1. Get a list of all the installed apps on device and show them in a ListView with check box. If the user checks any app, add the app to a different list say BlockedAppsList(which will be the list of apps which user wants to block). You can get all the apps installed using the following code:

final PackageManager pm = getPackageManager();
//get a list of installed apps.
List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);

for (ApplicationInfo packageInfo : packages) {
Log.d(TAG, "Installed package :" + packageInfo.packageName);
Log.d(TAG, "Source dir : " + packageInfo.sourceDir);
Log.d(TAG, "Launch Activity :" + pm.getLaunchIntentForPackage(packageInfo.packageName)); 
}

检查当前打开的应用程序.您可以使用此代码进行检查:

Check the which is the current opened app. You can check by using this code:

ActivityManager am = (ActivityManager) this.getSystemService(ACTIVITY_SERVICE);
List l = am.getRecentTasks(1, ActivityManager.RECENT_WITH_EXCLUDED);
Iterator i = l.iterator();
PackageManager pm = this.getPackageManager();
while (i.hasNext()) {
ActivityManager.RunningAppProcessInfo info = (ActivityManager.RunningAppProcessInfo)(i.next());
try {
CharSequence c = pm.getApplicationLabel(pm.getApplicationInfo(
info.processName, PackageManager.GET_META_DATA));
Log.w("LABEL", c.toString());
} catch (Exception e) {
// Name Not FOund Exception
    }
   }

现在检查当前应用程序是否存在于 BlockedAppsList 中，如果存在，您可以显示任何带有阻止消息的屏幕.

Now check if the current app is present in the BlockedAppsList, if it is there, you can show any screen with a block message.

祝你好运！

这篇关于如何在android中制作应用程序锁定应用程序?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！