安卓ApiDemos学习app/DeviceAdmin/DeviceAdminSample

首先是启动和关闭ActiveAdmin

启动ActiveAdmin

Intent intent &＃61; new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN,mDeviceAdminSample);
intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION,"Additional text explaining why this needs to be added.");
startActivityForResult(intent, RESULT_ENABLE);

向Intent中设置DevicePolicyManager.EXTRA_DEVICE_ADMIN&＃xff0c;本例设置了一个ComponentName

mDeviceAdminSample &＃61; new ComponentName(Controller.this, DeviceAdminSample.class);设置EXTRA_ADD_EXPLANATION的文字会表示在权限确认画面上&＃xff0c;如下图

删除ActiveAdmin

mDPM.removeActiveAdmin(mDeviceAdminSample);

设置密码相关配置。首先要确定当前activity是否已经启动了AdminActive模式

如果是的话&＃xff0c;利用DevicePolicyManager的方法&＃xff0c;设置密码配置

boolean active &＃61; mDPM.isAdminActive(mDeviceAdminSample);if (active) {mDPM.setPasswordQuality(mDeviceAdminSample, pwQuality);mDPM.setPasswordMinimumLength(mDeviceAdminSample, pwLength);mDPM.setMaximumFailedPasswordsForWipe(mDeviceAdminSample, maxFailedPw);}更改屏幕锁定password需要启动系统画面

Intent intent &＃61; new Intent(DevicePolicyManager.ACTION_SET_NEW_PASSWORD);
startActivity(intent);Restpassword方法中&＃xff0c;首先判定用户是否是管理员。

if (mAM.isUserAMonkey()) {// Don&＃39;t trust monkeys to do the right thing!AlertDialog.Builder builder &＃61; new AlertDialog.Builder(Controller.this);builder.setMessage("You can&＃39;t reset my password because you are a monkey!");builder.setPositiveButton("I admit defeat", null);builder.show();return;}如果是&＃xff0c;则重置密码

mDPM.resetPassword(mPassword.getText().toString(),DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY);