de53b46b16
The Bluetooth device picker was restarting the device scan after the screen is rotated. Fix this by only starting the scan when the savedInstanceState Bundle passed to onCreate() is null. Also removes "No Bluetooth devices were found nearby" from list if the user switches to a different app and then switches back to the device picker. Bug: 5249380 Change-Id: I8959c850649eb713fb930ee0a8a7bcb73ca7c1aa
110 lines
3.8 KiB
Java
110 lines
3.8 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.bluetooth;
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import android.bluetooth.BluetoothAdapter;
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import android.bluetooth.BluetoothDevice;
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import android.bluetooth.BluetoothDevicePicker;
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import android.content.Intent;
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import android.os.Bundle;
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import com.android.settings.R;
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/**
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* BluetoothSettings is the Settings screen for Bluetooth configuration and
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* connection management.
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*/
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public final class DevicePickerFragment extends DeviceListPreferenceFragment {
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private boolean mNeedAuth;
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private String mLaunchPackage;
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private String mLaunchClass;
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private boolean mStartScanOnResume;
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@Override
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void addPreferencesForActivity() {
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addPreferencesFromResource(R.xml.device_picker);
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Intent intent = getActivity().getIntent();
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mNeedAuth = intent.getBooleanExtra(BluetoothDevicePicker.EXTRA_NEED_AUTH, false);
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setFilter(intent.getIntExtra(BluetoothDevicePicker.EXTRA_FILTER_TYPE,
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BluetoothDevicePicker.FILTER_TYPE_ALL));
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mLaunchPackage = intent.getStringExtra(BluetoothDevicePicker.EXTRA_LAUNCH_PACKAGE);
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mLaunchClass = intent.getStringExtra(BluetoothDevicePicker.EXTRA_LAUNCH_CLASS);
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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getActivity().setTitle(getString(R.string.device_picker));
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mStartScanOnResume = (savedInstanceState == null); // don't start scan after rotation
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}
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@Override
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public void onResume() {
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super.onResume();
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addCachedDevices();
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if (mStartScanOnResume) {
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mLocalAdapter.startScanning(true);
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mStartScanOnResume = false;
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}
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}
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@Override
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void onDevicePreferenceClick(BluetoothDevicePreference btPreference) {
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mLocalAdapter.stopScanning();
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LocalBluetoothPreferences.persistSelectedDeviceInPicker(
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getActivity(), mSelectedDevice.getAddress());
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if ((btPreference.getCachedDevice().getBondState() ==
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BluetoothDevice.BOND_BONDED) || !mNeedAuth) {
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sendDevicePickedIntent(mSelectedDevice);
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finish();
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} else {
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super.onDevicePreferenceClick(btPreference);
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}
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}
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public void onDeviceBondStateChanged(CachedBluetoothDevice cachedDevice,
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int bondState) {
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if (bondState == BluetoothDevice.BOND_BONDED) {
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BluetoothDevice device = cachedDevice.getDevice();
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if (device.equals(mSelectedDevice)) {
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sendDevicePickedIntent(device);
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finish();
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}
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}
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}
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@Override
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public void onBluetoothStateChanged(int bluetoothState) {
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super.onBluetoothStateChanged(bluetoothState);
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if (bluetoothState == BluetoothAdapter.STATE_ON) {
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mLocalAdapter.startScanning(false);
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}
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}
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private void sendDevicePickedIntent(BluetoothDevice device) {
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Intent intent = new Intent(BluetoothDevicePicker.ACTION_DEVICE_SELECTED);
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intent.putExtra(BluetoothDevice.EXTRA_DEVICE, device);
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if (mLaunchPackage != null && mLaunchClass != null) {
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intent.setClassName(mLaunchPackage, mLaunchClass);
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}
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getActivity().sendBroadcast(intent);
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}
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}
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