我最近开始探索 android 设备策略管理 API,但遇到了一些困难。我只是在启用设备管理时遇到了问题。我相当确定这是清单条目的问题,但是我不能完全确定问题区域。
清单条目:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example"
android:versionCode="1"
android:versionName="1.0">
<application android:label="DeviceAdminTrial" android:icon="@drawable/icon" android:debuggable="true">
<activity android:name=".MyActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".Receiver"
android:label="device_admin"
android:permission="android.permission.BIND_DEVICE_ADMIN"/>
<meta-data android:name="android.app.device_admin"
android:resource="@xml/device_admin" />
<intent-filter>
<action android:name="android.app.action.DEVICE_ADMIN_ENABLED"/>
</intent-filter>
</application>
</manifest>
错误信息:
12-25 15:42:38.930: WARN/DeviceAdminAdd(394): Unable to retrieve device policy ComponentInfo{com.example/com.example.Receiver}
org.xmlpull.v1.XmlPullParserException: No android.app.device_admin meta-data
device_admin.xml
<device-admin xmlns:android="http://schemas.android.com/apk/res/android">
<uses-policies>
<limit-password />
<watch-login />
<reset-password />
<force-lock />
<wipe-data />
</uses-policies>
</device-admin>
启用方法:
enable = (Button)findViewById(R.id.button);
enable.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
Intent intent = new Intent (DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, receiver);
startActivityForResult(intent, 1);//1 is enabled, 0 is disabled.
output.setText(""+policymanager.isAdminActive(receiver));
}
});
Receiver 类与此处的示例一样基本:http: //developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/app/DeviceAdminSample.html
任何帮助或建议将不胜感激。