android 廣播的方法

2021-07-16 20:14:09 字數 1143 閱讀 6320

依賴包類:

傳送廣播,實現例項如下:

if((nitscan == 1) && (chnum > 0))

else

}break;

default:

broadcast_cmd = "";

broadcast_param = "";

break;

}intent.putextra(dvb_channel_search_broadcast_extr_cmd, broadcast_cmd);

intent.putextra(dvb_channel_search_broadcast_extr_param, broadcast_param);

log.i(tag, "channelscanimpl send broadcast:" + broadcast_cmd + "\n");

this.sendbroadcast(intent);

}接收廣播的方法:

private

broadcastreceiver mbroadcastreceiver = null;

mbroadcastreceiver = new epgdbimplintentreceiver();

intentfilter intentfilter = new intentfilter();

intentfilter.addaction(dvbbase.dvb_channel_search_broadcast_action);

mcontext.registerreceiver(mbroadcastreceiver, intentfilter);

private

class channeldbimplintentreceiver extends broadcastreceiver

else if (objects.equals(msg, dvb_channel_search_broadcast_msg_finish)) }}

} 另外一種接收方法:在androidmanifest.xml中宣告,而不需要在context中registerreceiver,宣告如下:

結束:mcontext.unregisterreceiver(mbroadcastreceiver);

備註:因為廣播方式傳遞訊息和引數,延時太長,不宜用於快速反應的應用!

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