错误：未知管理员：ComponentInfo {com.demoapp.amm / DeviceAdminSample}

Question

我正在从adb shell尝试此命令

  

dpm set-device-owner com.demoapp.amm / DeviceAdminSample

我得到了这个答复。

  

未知管理员：ComponentInfo {com.demoapp.amm / DeviceAdminSample}

com.demoapp.amm是清单文件中的包名称。

以下是我来自清单文件的收件人

  <receiver
        android:name=".DeviceAdminSample"
        android:description="@string/sample_device_admin_description"
        android:label="@string/sample_device_admin_description"
        android:permission="android.permission.BIND_DEVICE_ADMIN" >

        <meta-data
            android:name="android.app.device_admin"
            android:resource="@xml/device_admin_sample" >
        </meta-data>

        <intent-filter>
            <action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
        </intent-filter>
    </receiver> 

下面是我的类DeviceAdminSample.class

package com.demoapp.amm;
import android.app.admin.DeviceAdminReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;


public class DeviceAdminSample extends DeviceAdminReceiver {

void showToast(Context context, String msg) {

    Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();
}

@Override
public void onEnabled(Context context, Intent intent) {
    showToast(context,"Enabled");
}

@Override
public CharSequence onDisableRequested(Context context, Intent intent) {
    return "Disabled";
}

@Override
public void onDisabled(Context context, Intent intent) {
    showToast(context, "Disabled");
}

@Override
public void onPasswordChanged(Context context, Intent intent) {
    showToast(context,"Password Change");
}

public static ComponentName getComponentName(Context context) {
    return new ComponentName(context.getApplicationContext(), 
DeviceAdminSample.class);
}

}

Answer 1

这是因为您在清单android：name =“。DeviceAdminSample”中为接收者名称添加了句点前缀，因此com.demoapp.amm / DeviceAdminSample不存在。

请改用dpm set-device-owner com.demoapp.amm / .DeviceAdminSample。