启用从文档Android的蓝牙 [英] Enable Android bluetooth from documentation
问题描述
我试图让我的活动,以启用蓝牙的Android 2.0.1 SDK,我使用从这里的文档一些code直:<一href="http://developer.android.com/guide/topics/wireless/bluetooth.html">http://developer.android.com/guide/topics/wireless/bluetooth.html
I am trying to get my Activity to enable Bluetooth with the Android 2.0.1 SDK, I am using some code straight from the documentation here: http://developer.android.com/guide/topics/wireless/bluetooth.html
这就是:
if (!mBluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
我得到一个错误的REQUEST_ENABLE_BT部分,其中的Eclipse说,它无法得到解决。我究竟做错了什么?
I get an error at the REQUEST_ENABLE_BT part where Eclipse says it cannot be resolved. What am I doing wrong?
推荐答案
在 REQUEST_ENABLE_BT
部分是一个请求code,你应该处理在 onActivityResult
方法。在该方法会通知您是否不启用蓝牙是成功的。
The REQUEST_ENABLE_BT
part is a request code that you should handle in your onActivityResult
method. In that method you'll be notified whether or not enabling Bluetooth was successful.
在这code段,他们并没有表现出它的定义,但它只是一个恒定的整数,所以你可以将其设置为任何你喜欢的值。
In that code snippet they didn't show the definition of it, but it's just a constant integer so you can set it to any value you like.
见<一href="http://developer.android.com/reference/android/app/Activity.html#startActivityForResult%28android.content.Intent,%20int%29">documentation对于startActivityForResult 了解有关从活动的推出获得返回结果的详细信息。
See the documentation for startActivityForResult for more info about getting results back from activity launches.
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