[ Android ] BroadcastReceiver 用法 (三) registerReceiver 註冊

接上著一篇用藍芽當例子，
這裡要說如何用registerReceiver()來註冊，

registerReceiver(BroadcastReceiver receiver, IntentFilter filter)

這是registerReceiver()的定義，
第一個參數是實作的BroadcastReceiver class，
第二個是IntentFilter ，像在AndroidManifest.xml那裡一樣，

        <receiver android:name=".BluetoothReceiver">
            <intent-filter>
                <action android:name="android.bluetooth.device.action.FOUND" />
            </intent-filter>
        </receiver>

這段就是加在IntentFilter裡面，
代表receiver可以接收到的行為，

IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(BluetoothDevice.ACTION_FOUND);

代表我要收到ACTION_FOUND這行為，
然後我再把receiver實體化，

BluetoothReceiver bReceiver = new BluetoothReceiver();

之後一起送去註冊就完成了。

registerReceiver(bReceiver, intentFilter);



SourceCode

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