使用全状态恢复，也就是这段代码……
self.centralManager = [[CBCentralManager alloc] initWithDelegate:self
queue:nil
options
{CBCentralManagerOptionShowPowerAlertKey: @(YES),
CBCentralManagerOptionRestoreIdentifierKey"MyDevice"}];
要注册标识符键和此代码...
- (BOOL)application
UIApplication *)application willFinishLaunchingWithOptionsNSDictionary *)launchOptions {
NSLog(@"launch options found: %@", launchOptions);
NSArray *centralManagerIdentifiers = launchOptions[UIApplicationLaunchOptionsBluetoothCentralsKey];
NSLog(@"central managers found in launch options: %@", centralManagerIdentifiers);
[self triggerLocalNotification:[NSString stringWithFormat"central managers found in launch options: %@", centralManagerIdentifiers]];
if([centralManagerIdentifiers count] > 0) {
for(NSString *identifier in centralManagerIdentifiers) {
if([identifier isEqualToString"MyDevice"]) {
[self triggerLocalNotification:[NSString stringWithFormat"Identifier found: %@", identifier]];
self.bluetoothManager = [BluetoothMgr sharedInstance];
}
}
}
return YES;
}
- (void)centralManagerCBCentralManager *)central
willRestoreStateNSDictionary<NSString *,id> *)state {
NSLog(@"************** RESTORED STATE BT **************");
[self triggerCustomLocalNotification"************** RESTORED STATE BT **************"];
NSLog(@"central manager object: %@", central);
NSLog(@"state dictionary: %@", state);
[self triggerCustomLocalNotification:[NSString stringWithFormat"state dictionary: %@", state]];
NSArray *restoredPeripherals = [state objectForKey"CBCentralManagerRestoredStatePeripheralsKey"];
self.centralManager = central;
self.centralManager.delegate = self;
if([restoredPeripherals count] > 0) {
for(CBPeripheral *peripheral in restoredPeripherals) {
if([peripheral.name rangeOfString"mybox-"].location != NSNotFound) {
NSLog(@"Restoring mybox Box: %@", peripheral);
[self triggerCustomLocalNotification:[NSString stringWithFormat"
eripheral was found in WILL RESTORE STATE! it was: %@", peripheral]];
self.myPeripheral = peripheral;
self.myPeripheral.delegate = self;
[self connectToDevice];
return;
}
}
}
}
恢复中央管理器状态。这仅在应用程序被 iOS 终止或状态更改时有效。当用户杀死应用程序时不起作用。
订阅设备中的通知特性(我创建了这个自定义特性并且我可以完全控制设备的编程)......这确实很好，但并不总是唤醒应用程序。虽然在后台运行良好。只是没有终止。