安卓prevent蓝牙配对对话 [英] Android Prevent Bluetooth Pairing Dialog

问题描述

我开发一个内部应用程序，它使用蓝牙进行打印。我希望发生的蓝牙配对而无需用户输入。我曾设法让该工作通过捕获 android.bluetooth.device.action.PAIRING_REQUEST 播出。

I'm developing an internal application which uses Bluetooth for printing. I want the Bluetooth pairing to occur without user input. I have managed to get that working by trapping the android.bluetooth.device.action.PAIRING_REQUEST broadcast.

在我的广播接收我称之为setPin法，配对工程确定，但 BluetoothPairingDialog 显示了一两秒钟，然后消失 - 见下面的链接。

In my broadcast receiver I call the setPin method, and pairing works ok, but a BluetoothPairingDialog is displayed for a second or two, then it disappears - see link below.

<一个href="https://github.com/android/platform_packages_apps_settings/blob/master/src/com/android/settings/bluetooth/BluetoothPairingDialog.java" rel="nofollow">https://github.com/android/platform_packages_apps_settings/blob/master/src/com/android/settings/bluetooth/BluetoothPairingDialog.java

由于广播是无序的，我不能叫 abortBroadcast（），并想知道是否有任何其他方式prevent配对对话框出现。我可以挂接到窗口管理器以某种方式？

Since the broadcast is non-ordered, I can't call abortBroadcast(), and was wondering if there was any other way to prevent the pairing dialog from appearing. Can I hook into the window manager in some way?

推荐答案

老实说，我一直没能想出一个办法做到这一点，而无需修改SDK。如果您是OEM，很容易（我在4.3）：

I honestly haven't been able to come up with a way to do this without modifying the sdk. If you're the OEM, it's easy (I'm on 4.3):

在封装/应用程序/设置/ AndroidManifest.xml中，发表意见的意图过滤器的配对对话框：

In packages/apps/Settings/AndroidManifest.xml, comment the intent filter for the pairing dialog:

<activity android:name=".bluetooth.BluetoothPairingDialog"
          android:label="@string/bluetooth_pairing_request"
          android:excludeFromRecents="true"
          android:theme="@*android:style/Theme.Holo.Dialog.Alert">
    <!-- <intent-filter>
        <action android:name="android.bluetooth.device.action.PAIRING_REQUEST" />
        <category android:name="android.intent.category.DEFAULT" />
    </intent-filter> -->
</activity>

在框架/基/核心/爪哇/安卓/蓝牙/ BluetoothDevice.java删除从@hide的javadoc注释本恒

In frameworks/base/core/java/android/bluetooth/BluetoothDevice.java remove the @hide javadoc annotation from this constant

@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public static final String ACTION_PAIRING_REQUEST =
        "android.bluetooth.device.action.PAIRING_REQUEST";

和这个方法

public boolean setPairingConfirmation(boolean confirm) 

然后注册自己的活动或广播接收机的BluetoothDevice.PAIRING_REQUEST行动。该广播接收器可以配对继续没有用户输入（仅当无引脚是必需的）：

Then register your own activity or broadcast receiver for the BluetoothDevice.PAIRING_REQUEST action. This broadcast receiver allows pairing to continue without user input (only if no pin is required):

@Override
public void onReceive(Context context, Intent intent) {    
   if( intent.getAction().equals(BluetoothDevice.ACTION_PAIRING_REQUEST) ) {
      BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
      device.setPairingConfirmation( true );
   }
}

您将需要重建的SDK和编译code对新版本，以获得进入常数和方法，并取代Settings.apk对/系统分区关闭对话框。您可能也可能需要运行作为一个系统应用程序，但我觉得可能不是。

You'll need to rebuild the sdk and compile your code against the new version to get access to the constant and methods, and replace Settings.apk on the /system partition to disable the dialog. You may possibly also need to be running as a system app but I think likely not.

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