Created
December 11, 2013 11:10
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Code snippets to reuse system Bluetooth Device Picker
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package com.github.timnew.bluetooth; | |
import android.bluetooth.BluetoothDevice; | |
import android.bluetooth.BluetoothDevicePicker; | |
import android.content.BroadcastReceiver; | |
import android.content.Context; | |
import android.content.Intent; | |
import android.content.IntentFilter; | |
import com.googlecode.androidannotations.annotations.EBean; | |
import com.googlecode.androidannotations.annotations.RootContext; | |
@EBean | |
public class BluetoothDeviceManager implements BluetoothDevicePicker { | |
@RootContext | |
protected Context context; | |
public void pickDevice(BluetoothDevicePickResultHandler handler) { | |
context.registerReceiver(new BluetoothDeviceManagerReceiver(handler), new IntentFilter(ACTION_DEVICE_SELECTED)); | |
context.startActivity(new Intent(ACTION_LAUNCH) | |
.putExtra(EXTRA_NEED_AUTH, false) | |
.putExtra(EXTRA_FILTER_TYPE, FILTER_TYPE_ALL) | |
.setFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS)); | |
} | |
public static interface BluetoothDevicePickResultHandler { | |
void onDevicePicked(BluetoothDevice device); | |
} | |
private static class BluetoothDeviceManagerReceiver extends BroadcastReceiver { | |
private final BluetoothDevicePickResultHandler handler; | |
public BluetoothDeviceManagerReceiver(BluetoothDevicePickResultHandler handler) { | |
this.handler = handler; | |
} | |
@Override | |
public void onReceive(Context context, Intent intent) { | |
context.unregisterReceiver(this); | |
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); | |
handler.onDevicePicked(device); | |
} | |
} | |
} |
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/* | |
* Copyright (C) 2009 The Android Open Source Project | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package android.bluetooth; | |
/** | |
* A helper to show a system "Device Picker" activity to the user. | |
* | |
* @hide | |
*/ | |
public interface BluetoothDevicePicker { | |
public static final String EXTRA_NEED_AUTH = "android.bluetooth.devicepicker.extra.NEED_AUTH"; | |
public static final String EXTRA_FILTER_TYPE = "android.bluetooth.devicepicker.extra.FILTER_TYPE"; | |
public static final String EXTRA_LAUNCH_PACKAGE = "android.bluetooth.devicepicker.extra.LAUNCH_PACKAGE"; | |
public static final String EXTRA_LAUNCH_CLASS = "android.bluetooth.devicepicker.extra.DEVICE_PICKER_LAUNCH_CLASS"; | |
/** | |
* Broadcast when one BT device is selected from BT device picker screen. | |
* Selected {@link BluetoothDevice} is returned in extra data named | |
* {@link BluetoothDevice#EXTRA_DEVICE}. | |
*/ | |
public static final String ACTION_DEVICE_SELECTED = "android.bluetooth.devicepicker.action.DEVICE_SELECTED"; | |
/** | |
* Broadcast when someone want to select one BT device from devices list. | |
* This intent contains below extra data: | |
* - {@link #EXTRA_NEED_AUTH} (boolean): if need authentication | |
* - {@link #EXTRA_FILTER_TYPE} (int): what kinds of device should be | |
* listed | |
* - {@link #EXTRA_LAUNCH_PACKAGE} (string): where(which package) this | |
* intent come from | |
* - {@link #EXTRA_LAUNCH_CLASS} (string): where(which class) this intent | |
* come from | |
*/ | |
public static final String ACTION_LAUNCH = "android.bluetooth.devicepicker.action.LAUNCH"; | |
/** | |
* Ask device picker to show all kinds of BT devices | |
*/ | |
public static final int FILTER_TYPE_ALL = 0; | |
/** | |
* Ask device picker to show BT devices that support AUDIO profiles | |
*/ | |
public static final int FILTER_TYPE_AUDIO = 1; | |
/** | |
* Ask device picker to show BT devices that support Object Transfer | |
*/ | |
public static final int FILTER_TYPE_TRANSFER = 2; | |
/** | |
* Ask device picker to show BT devices that support | |
* Personal Area Networking User (PANU) profile | |
*/ | |
public static final int FILTER_TYPE_PANU = 3; | |
/** | |
* Ask device picker to show BT devices that support Network Access Point (NAP) profile | |
*/ | |
public static final int FILTER_TYPE_NAP = 4; | |
} |
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Is there an Intent filter for when no device is selected? Say, when the user presses the back button. Something like "android.bluetooth.devicepicker.action.DEVICE_NOT_SELECTED"?