一.動態注冊
關鍵代碼

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class MyActivity extentds Activity{//DYNC_BROADCAST可以隨意,但注冊廣播和發送廣播時action應該保持一致private static final String DYNC_BROADCAST = "guo.com.example.dyncBroadcastReceiver";private DyncBroadcastReceiver dyncBroadcastReceiver = new DyncBroadcastReceiver();@Overrideprotected void onCreate(Bundle savedInstanceState) {.....// 注冊廣播IntentFilter iFilter = new IntentFilter();iFilter.addAction(DYNC_BROADCAST);registerReceiver(dyncBroadcastReceiver, iFilter);}// 發送廣播通知protected void sendBroadcast(){Intent intent = new Intent();intent.setAction(DYNC_BROADCAST);sendBroacdcast(intent);}

　　 　　@Override
　　protected void onDestroy() {
　　　　unregisterReceiver(dyncBroadcastReceiver);
　　super.onDestroy();
　　　　
　　} }

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二.靜態注冊

class MyActivity extentds Activity{@Overrideprotected void onCreate(Bundle savedInstanceState) {.....}// 發送廣播通知protected void sendBroadcast(){Intent intent = new Intent();intent.setAction("guo.com.example.MyBroadcast");sendBroacdcast(intent);}}

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AndroidManifest.xml

<receiver android:name=".MyBroadcastReceiver"><intent-filter><action android:name="guo.com.example.MyBroadcast" /></intent-filter> </receiver>

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兩者區別:
動態注冊廣播需要在每個活動頁注冊,靜態廣播可以實現注冊到所有活動頁.因為動態注冊邏輯寫在onCreate中,所以應用如果沒啟動,則無法通知.靜態注冊可不受此限制.

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轉載于:https://www.cnblogs.com/itfenqing/p/6751853.html

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