Question

我正在尝试在我的应用中使用设备管理API。

我的 DeviceAdmin来电类是：

public class DeviceAdminCaller extends Activity {
static final int activationCode = 47;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
    ComponentName deviceAdminComponent = new ComponentName(this, DeviceAdmin.class);
    intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, deviceAdminComponent);
    intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "We recommend you to enable this");
    startActivityForResult(intent, activationCode);

}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    switch (requestCode) {
    case activationCode:
        if (resultCode == Activity.RESULT_OK) {
            Log.i("DeviceAdminSample", "Administration enabled!");
        } else {
            Log.i("DeviceAdminSample", "Administration enable FAILED!");
        }
        return;
    }
    super.onActivityResult(requestCode, resultCode, data);
}
}

我的 DeviceAdminReciever 的子类是这样的：

public class DeviceAdmin extends DeviceAdminReceiver {
@Override
public void onEnabled(Context context, Intent intent) {
    // TODO Auto-generated method stub
    super.onEnabled(context, intent);
    Log.i("Device Admin", "Enabled");
}

@Override
public String onDisableRequested(Context context, Intent intent) {
    // TODO Auto-generated method stub
    return "Admin disable Requested";
}

@Override
public void onDisabled(Context context, Intent intent) {
    // TODO Auto-generated method stub
    super.onDisabled(context, intent);
    Log.i("Device Admin", "Disables");

}

@Override
public void onPasswordChanged(Context context, Intent intent) {
    // TODO Auto-generated method stub
    super.onPasswordChanged(context, intent);
    Log.i("Device Admin", "Password Changed");
}
}

包含DeviceAdmin 的清单部分是：

<activity android:name=".DeviceAdmin" android:label="activity_sample_device_admin" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.SAMPLE_CODE" /> </intent-filter> </activity> <activity android:name=".DeviceAdminCaller" android:label="activity_caller_device_admin" > <intent-filter> <action android:name="android.intent.action.DEVICE_ADMIN_CALLER" /> <category android:name="android.intent.category.DEFAULT" />  </intent-filter> </activity> <receiver android:name=".DeviceAdmin" android:permission="android.permission.BIND_DEVICE_ADMIN" > <meta-data android:name="android.app.device_admin_sample" android:resource="@xml/device_admin_sample" /> <intent-filter> <action android:name="android.app.action.DEVICE_ADMIN_ENABLED" /> <action android:name="android.app.action.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED" /> <action android:name="android.app.action.ACTION_DEVICE_ADMIN_DISABLED" /> </intent-filter> </receiver>

LogCat输出为：Administration enable FAILED!

我做错了什么？我今天有一个项目提交。任何帮助，将不胜感激。：）

Answer 1

我做错了什么？

您正在致电startActivityForResult()，要求Intent不支持该行为的RESULT_CANCELLED行动。在这些情况下，您始终返回<h1>Hello {{name}},</h1> <h1>Welcome to my website!</h1> <h1>Please enter your name:</h1> <input type="text" ng-model="name"> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>。

设备管理屏幕无法打开

1 个答案: