好。我很好奇它是否是我的代码，或者广播接收器是否正在执行应有的功能。我设置了一个广播接收器来侦听wifi的变化，例如是否连接了某个网络。广播接收器正常工作，并且在“接收”方法中将其信息发布到logcat中。这里的问题是它似乎多次触发，在本例中是8次。这是应该做的吗？有没有办法限制触发次数。
这是原木猫
07-12 13:33:21.748 8152-8152/com.apklegion.pcnotetest D/TEMP:
android.net.wifi.STATE_CHANGE
07-12 13:33:21.753 8152-8152/com.apklegion.pcnotetest D/TEMP:
SSID :: "SkyNet Global Defense Network "
07-12 13:33:21.754 8152-8152/com.apklegion.pcnotetest D/TEMP: Wifi is enabled
07-12 13:33:21.806 8152-8152/com.apklegion.pcnotetest D/TEMP:
android.net.wifi.STATE_CHANGE
07-12 13:33:21.809 8152-8152/com.apklegion.pcnotetest D/TEMP: BSSID ::
4c:60:de:cf:e3:88SSID :: "SkyNet Global Defense Network "
07-12 13:33:21.810 8152-8152/com.apklegion.pcnotetest D/TEMP: Wifi is enabled
07-12 13:33:21.862 8152-8152/com.apklegion.pcnotetest D/TEMP:
android.net.wifi.STATE_CHANGE
07-12 13:33:21.865 8152-8152/com.apklegion.pcnotetest D/TEMP: SSID :: "SkyNet
Global Defense Network "
07-12 13:33:21.866 8152-8152/com.apklegion.pcnotetest D/TEMP: Wifi is enabled
07-12 13:33:21.918 8152-8152/com.apklegion.pcnotetest D/TEMP:
android.net.wifi.STATE_CHANGE
07-12 13:33:21.920 8152-8152/com.apklegion.pcnotetest D/TEMP: SSID :: "SkyNet
Global Defense Network "
07-12 13:33:21.921 8152-8152/com.apklegion.pcnotetest D/TEMP: Wifi is enabled
07-12 13:33:21.966 8152-8152/com.apklegion.pcnotetest D/TEMP:
android.net.wifi.STATE_CHANGE
07-12 13:33:21.969 8152-8152/com.apklegion.pcnotetest D/TEMP: SSID :: "SkyNet
Global Defense Network "
07-12 13:33:21.970 8152-8152/com.apklegion.pcnotetest D/TEMP: Wifi is enabled
07-12 13:33:22.013 8152-8152/com.apklegion.pcnotetest D/TEMP:
android.net.wifi.STATE_CHANGE
07-12 13:33:22.017 8152-8152/com.apklegion.pcnotetest D/TEMP: SSID :: "SkyNet
Global Defense Network "
07-12 13:33:22.018 8152-8152/com.apklegion.pcnotetest D/TEMP: Wifi is enabled
07-12 13:33:22.073 8152-8152/com.apklegion.pcnotetest D/TEMP:
android.net.wifi.STATE_CHANGE
07-12 13:33:22.075 8152-8152/com.apklegion.pcnotetest D/TEMP: SSID :: "SkyNet
Global Defense Network "
07-12 13:33:22.076 8152-8152/com.apklegion.pcnotetest D/TEMP: Wifi is enabled
07-12 13:33:22.386 8152-8152/com.apklegion.pcnotetest D/TEMP:
android.net.wifi.STATE_CHANGE
07-12 13:33:22.391 8152-8152/com.apklegion.pcnotetest D/TEMP: SSID :: "SkyNet
Global Defense Network "
07-12 13:33:22.392 8152-8152/com.apklegion.pcnotetest D/TEMP: Wifi is enabled
Wifi is connected
这是广播接收器类
public class MyWifiStateListener extends BroadcastReceiver {
Boolean isConnected = false;
String skynet, message;
public static boolean isConn = false;
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
String action = intent.getAction();
Log.d("TEMP", action);
assert action != null;
if (action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) {
NetworkInfo info = intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
if (info.getType() == ConnectivityManager.TYPE_WIFI) {
WifiManager myWifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = myWifiManager.getConnectionInfo();
String test = wifiInfo.toString();
String sid = wifiInfo.getSSID();
tv.setText(test);
int count =0;
Log.d("TEMP", "SSID :: " + wifiInfo.getSSID());
在我的“主要活动”课程中，我注册了接收者，并在OnPause和简历中设置了取消注册和重新注册的方法
filters.addAction("android.net.wifi.STATE_CHANGE");
super.registerReceiver(myWifiStateListener, filters);
@Override
protected void onPause() {
try {
unregisterReceiver(myWifiStateListener);
Log.i(TAG, "Unregistered broadcast receiver");
}catch (Exception e){
}
super.onPause();
}
@Override
protected void onResume() {
Log.i(TAG, "Registered broadcast receiver");
registerReceiver(myWifiStateListener,filters);
super.onResume();
}
@Override
protected void onDestroy() {
stopService(new Intent(this, MyWifiStateListener.class));
Log.i(TAG, "Stopped service");
super.onDestroy();
}