February 2015
Intermediate to advanced
200 pages
4h 48m
Japanese
Content preview from Bluetooth Low Energyをはじめよう
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.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.
131
//
成功か失敗かを判断する
if(status == BluetoothGatt.GATT_SUCCESS) {
mUiCallback.uiSuccessfulWrite( mBluetoothGatt, mBluetoothDevice,
mBluetoothSelectedService,
descriptor.getCharacteristic(),
description);
}
else {
mUiCallback.uiFailedWrite( mBluetoothGatt, mBluetoothDevice,
mBluetoothSelectedService,
descriptor.getCharacteristic(),
description + " STATUS = " + status);
}
};
...
}
この
onDescriptorWrite()
は、通知が正しくオンにされた場合にはApplication
Acceleratorの
uiSuccessfulWrite()
メソッドを呼 び 出すことになる。
すべてのセンサー特性について通知をオンにするには、センサーそのものをオンにした
のと同 様に、ステートマシンを使ってシーケンシャルに 1つ1つ処理すればよい。通知につ
いて気を付けてほしいのは、Android 4.4（KitKat）で は 、 同 時 に 4つの特性しか通知をオ
ン に できな い ことだ 。こ れ は 現 在 の Android BLEライブラリの実装上の制限だが、おそら
く将来のバージョンでは改善されることだろう。
この章のコードの大部分は断片として提示したが、完全なソースコードはこの本の
GitHubリ ポ ジ ト リ（ https:// ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.