Android Broadcast Recipient

Source: Internet
Author: User
<span id="Label3"></p><p><p>There are two ways for Android to broadcast</p></p><p><p>Mode 1: Dynamic Registration</p></p><p><p>Mode 2: Profile Registration</p></p><p><p></p></p><p><p>Let's implement mode 1, dynamic registration</p></p><p><p>First we define a recipient, inherit <span style="color: #000000;">broadcastreceiver </span>, and override the <span style="color: #000000;">onreceive</span> method, which automatically calls the <span style="color: #000000;">OnReceive</span> method when the specified broadcast is Emitted.</p></p><pre><pre><span style="color: #0000ff;"></span> public <span style="color: #0000ff;">class</span> <span style="color: #0000ff;">extends</span> <span style="color: #000000;">broadcastreceiver { @Override </span>public<span style="color: #0000ff;"></span><span style="color: #0000ff;">void</span> <span style="color: #000000;"> onreceive (context context, Intent Intent) { </span><span style="color: #008000;">//</span> <span style="color: #008000;">Get the data passed in the broadcast as a</span> String, intent.getstringextra ("data"<span style="color: #000000;">); LOG.I (</span>"shxtapp", "received data:" + data<span style="color: #000000;">);} }</span></pre></pre><p><p>Next we register this broadcast receiver, here we specify the broadcast action is "setaction", only the system issued this broadcast, can be received by us.</p></p><pre><pre><span style="color: #0000ff;">New</span><span style="color: #000000;"></span><span style="color: #0000ff;">new</span> <span style="color: #000000;"> intentfilter (); filter.addaction (</span><span style="color: #008000;">//</span> <span style="color: #008000;">only the recipient who holds the same action can receive this broadcast </span> <span style="color: #000000;">registerreceiver (receivebroadcast, filter); LOG.I (</span>"shxtapp", "registered recipient complete");</pre></pre><p><p></p></p><p><p>Next we simulate the broadcast</p></p><pre><pre><span style="color: #0000ff;">New</span> Intent (); <span style="color: #008000;">//</span> <span style="color: #008000;">Itent is the content we want to send</span> Intent.putextra ("data", "transmitted information"<span style="color: #000000;">), intent.setaction (</span>"setaction"<span style="color: #000000;">);</span> <span style="color: #008000;">//</span> <span style="color: #008000;">set your action on this broadcast, only</span> the recipient who is the same as this action can receive the broadcast Sendbroadcast (intent); <span style="color: #008000;">//</span> <span style="color: #008000;">Send broadcast</span> LOG.I ("shxtapp", "send complete");</pre></pre><p><p>When we broadcast, our defined broadcast receivers receive our broadcasts and are able to obtain the data we transmit.</p></p>
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