检测锁屏密码不正确用户在Android中 [英] Detect Lock Screen Incorrect Password by user in Android

问题描述

我建立一个安全的应用程序，我需要知道，如果用户正在给密码不正确。假设用户手机由图案锁系统锁定，不幸的是用户忘记了图案password.When用户给出错误的模式5的时候，会有一个点球，持续30秒。 我需要赶上处罚事件。 在我的应用程序，我不得不做一些任务（用户安全）时，这甚至来了。 请帮帮我，

I am building a security app and I need to know if the user is giving incorrect password . Suppose user phone is locked by pattern lock system , and unfortunately user has forgotten the pattern password.When user give wrong pattern 5 time, there will be a penalty for 30 sec . I need to catch that penalty event . In my app, i have to do some task (for the safety of user) when this even come . Please help me,

推荐答案

您可以设置 DeviceAdminReceiver 将被通知失败的密码尝试，以及作为一个成功的密码尝试失败的尝试之后发生的。这会在 Android的设备管理API的文档。

You can set up a DeviceAdminReceiver that will be notified about failed password attempts, as well as a successful password attempt that occurred after a failed attempt. This is covered in the documentation of Android's device administration APIs.

请注意，用户必须同意让您的应用程序作为一个设备管理员，通过设置应用程序之前，你会得到这些事件。

Note that the user will have to agree to allow your app to serve as a device administrator, via the Settings app, before you will get these events.

此示例项目演示监听这些事件，再加上设置了密码质量政策。关键的部分是：

This sample project demonstrates listening for those events, plus setting up a password quality policy. The key pieces are:

• <一个href="https://github.com/commonsguy/cw-omnibus/blob/master/DeviceAdmin/PasswordEnforcer/src/com/commonsware/android/pwenforce/AdminReceiver.java">the DeviceAdminReceiver 实施
• <一个href="https://github.com/commonsguy/cw-omnibus/blob/master/DeviceAdmin/PasswordEnforcer/res/xml/device_admin.xml">the设备管理元数据，说明什么是管理能力，你的应用程序要
• 接收器在<一款入门href="https://github.com/commonsguy/cw-omnibus/blob/master/DeviceAdmin/PasswordEnforcer/AndroidManifest.xml">the清单
• code在<一个href="https://github.com/commonsguy/cw-omnibus/blob/master/DeviceAdmin/PasswordEnforcer/src/com/commonsware/android/pwenforce/MainActivity.java">the活动来检测，如果你的应用程序被批准作为设备管理员，如果没有，导致用户在设置现场进行改变

• the DeviceAdminReceiver implementation
• the device admin metadata, stating what administrative capabilities your app wants
• the receiver's entry in the manifest
• code in the activity to detect if your app is approved to serve as a device administrator and, if not, lead the user to the spot in Settings to make that change

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