{"id":166,"date":"2017-02-01T23:40:14","date_gmt":"2017-02-01T15:40:14","guid":{"rendered":"http:\/\/localhost\/wordpress\/?p=166"},"modified":"2017-02-02T00:11:24","modified_gmt":"2017-02-01T16:11:24","slug":"android-broadcast-receiver","status":"publish","type":"post","link":"https:\/\/myoceane.fr\/index.php\/android-broadcast-receiver\/","title":{"rendered":"[Android] Broadcast Receiver"},"content":{"rendered":"
<\/div>\n

\u53c3\u8003\u9023\u7d50\uff1ahttps:\/\/developer.android.com\/guide\/components\/broadcasts.html<\/p>\n

\u4e00\u822c\u4f86\u8aaa Broadcast Receiver \u53ef\u4ee5\u5206\u6210\u4ee5\u4e0b\u5169\u7a2e\uff1a
\n1. Manifest-declared Receiver
\n\u5b9a\u7fa9 receiver \u5728 manifest \u4e2d\uff1a<\/p>\n


\n
\n
\n
\n <\/intent-filter>
\n<\/receiver><\/p>\n

\u5b9a\u7fa9 receiver \u6210\u4e00\u500b BroadcastReceiver \u7684 subclass\uff0c\u4e26\u4e14\u8981\u57f7\u884c OnReceive \u7684\u529f\u80fd\uff0c\u5982\u540c\u4ee5\u4e0b\uff1a<\/p>\n

public class MyBroadcastReceiver extends BroadcastReceiver {
\n private static final String TAG = “MyBroadcastReceiver”;
\n @Override
\n public void onReceive(Context context, Intent intent) {
\n StringBuilder sb = new StringBuilder();
\n sb.append(“Action: ” + intent.getAction() + “\\n”);
\n sb.append(“URI: ” + intent.toUri(Intent.URI_INTENT_SCHEME).toString() + “\\n”);
\n String log = sb.toString();
\n Log.d(TAG, log);
\n Toast.makeText(context, log, Toast.LENGTH_LONG).show();
\n }
\n}<\/p>\n

\u9019\u6a23\u5728\u7a0b\u5f0f\u5b89\u88dd\u7684\u6642\u5019\uff0c\u9019\u500b Receiver \u5c31\u6703\u88ab\u7368\u7acb\u5b89\u88dd\u5728\u6d3b\u52d5\u4e4b\u5916\uff0c\u56e0\u6b64\u9019\u500b Receiver \u53ef\u4ee5\u8b8a\u6210\u555f\u52d5\u7a0b\u5f0f\u7684\u4e00\u500b\u95dc\u9375\u3002<\/p>\n

2. Context-registered Receiver<\/p>\n

\u53e6\u5916\u4e5f\u53ef\u4ee5\u8a3b\u518a\u4e00\u500b Receiver \u7d66\u4e00\u500b\u7279\u5b9a\u7684 Context\uff0c\u5229\u7528\u4ee5\u4e0b\u7684\u65b9\u6cd5\uff1a
\n\u65b0\u589e\u4e00\u500b\u65b0\u5b9a\u7fa9\u7684 MyBroadcastReceiver:<\/p>\n

BroadcastReceiver br = new MyBroadcastReceiver();<\/p>\n

\u65b0\u5b9a\u7fa9\u4e00\u500b IntentFilter \u65b0\u589e\u5176\u61c9\u8a72\u8981\u53cd\u61c9\u7684\u529f\u80fd\uff0c\u7136\u5f8c\u8a3b\u518a\u9019\u500b Receiver\u3002\u65b0\u8a3b\u518a\u7684 BroadcastReceiver \u6703\u8ddf\u8457 Context \u4e00\u8d77\u9032\u884c\uff0c\u6240\u4ee5\u5982\u679c\u8a3b\u518a\u5728\u4e00\u500b Activity \u7684\u8a71\uff0c\u53ea\u8981\u9019\u500b Activity \u6c92\u6709\u88ab\u6467\u6bc0\u7684\u8a71\uff0c\u5ee3\u64ad\u90fd\u6703\u6709\u6548\uff0c\u5982\u679c\u662f\u8a3b\u518a\u5728\u4e00\u500b Application \u7684\u8a71\uff0c\u53ea\u8981\u9019\u500b Application \u90fd\u9084\u5728\u904b\u884c\uff0c\u5ee3\u64ad\u63a5\u6536\u529f\u80fd\u90fd\u4e0d\u6703\u5931\u6548\u3002<\/p>\n

IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
\nintentFilter.addAction(Intent.ACTION_AIRPLANE_MODE_CHANGED);
\nthis.registerReceiver(br, filter);<\/p>\n

\u4e00\u822c\u4f86\u8aaa\uff0cMyBroadcastReceiver \u6703\u57f7\u884c\u4efb\u4f55\u7684\u547c\u53eb(Intent)\uff0c\u4f46\u662f\u4f7f\u7528 intentfilter \u53ef\u4ee5\u6e1b\u5c11\u547c\u53eb\u7684\u7e3d\u985e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u53c3\u8003\u9023\u7d50\uff1ahttps:\/\/developer.android.com\/guide\/components\/broadcasts.html \u4e00\u822c\u4f86\u8aaa Broadcast Receiver \u53ef\u4ee5\u5206\u6210\u4ee5\u4e0b\u5169\u7a2e\uff1a 1. Manifest-declared Receiver \u5b9a\u7fa9 receiver \u5728 manifest \u4e2d\uff1a \u5b9a\u7fa9 receiver \u6210\u4e00\u500b BroadcastReceiver \u7684 subclass\uff0c\u4e26\u4e14\u8981\u57f7\u884c OnReceive<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-166","post","type-post","status-publish","format-standard","hentry","category-android"],"yoast_head":"\n[Android] Broadcast Receiver - \u60f3\u65b9\u6d89\u6cd5 - \u91cf\u74f6\u5916\u7684\u5929\u7a7a M-Y-Oceane<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/myoceane.fr\/index.php\/android-broadcast-receiver\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Android] Broadcast Receiver - \u60f3\u65b9\u6d89\u6cd5 - \u91cf\u74f6\u5916\u7684\u5929\u7a7a M-Y-Oceane\" \/>\n<meta property=\"og:description\" content=\"\u53c3\u8003\u9023\u7d50\uff1ahttps:\/\/developer.android.com\/guide\/components\/broadcasts.html \u4e00\u822c\u4f86\u8aaa Broadcast Receiver \u53ef\u4ee5\u5206\u6210\u4ee5\u4e0b\u5169\u7a2e\uff1a 1. 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