February 2015
Intermediate to advanced
200 pages
4h 48m
Japanese
Content preview from Bluetooth Low Energyをはじめよう
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142
Bluetooth Low Energyをはじめよう
}
}
これで、ペリフェラルが 通 知を送 信した際 に
didUpdateValueForCharacteristic
メソッドが 呼 び 出されるので 、アプリは バッテリーレ ベ ル 特 性 の 値 が 変 化した 際 に の み 、そ
れを読 み 出 すことができるようになる 。
- (void)peripheral:(CBPeripheral *)peripheral
didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic
error:(NSError *)error
{
//
バッテリーレベル測定値の更新を受信した
if ([characteristic.UUID isEqual:[CBUUID
UUIDWithString:BATTERY_LEVEL_MEASUREMENT_CHARACTERISTIC_UUID]])
{
//
バッテリーレ ベ ルを取 得
[self getBatteryLevelData:characteristic error:error];
}
}
ここまでで、リモートペリフェラルと関連付けられたサービスと特性のオブジェクトを作成
するコードが完成した。次のセクションではこれらのオブジェクトを使って、アプリの他の部
分 に デ ータを 提 供 する 。
特性の読み出しとデコードを行うメソッド
次のコード断片は、通知された
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.