还是在清单中静态声明它。读取Dynamic Registration vs Static Registration of BroadcastReceiver。如果您希望...
创建界面接收BroadcastReceiver,并实现相关逻辑: public class MyActivity extends Activity { private BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if ("com.example.USB_ATTACHED".equals(action...
在Android 上,你可以通过在 AndroidManifest.xml 文件中添加适当的 Intent Filter 来实现开机自启。这通常涉及到创建一个 BroadcastReceiver 来监听系统的 BOOT_COMPLETED 广播。 在AndroidManifest.xml 中添加权限和广播接收器: <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> <applicatio...
BroadcastReceiver chargingBroadcastReceiver = createChargingBroadcaseReceiver(eventSink); mContext.registerReceiver(chargingBroadcastReceiver,new IntentFilter(Intent.ACTION_BATTERY_CHANGED)); } @Override public void onCancel(Object o) { } private BroadcastReceiver createChargingBroadcaseReceiver(EventChannel.Event...
推荐这个库,使用比较简单 flutter_broadcasts: ^0.4.0,android.intent.action.SCANRESULT是PDA设备的广播名称或者action BroadcastReceiver receiver=BroadcastReceiver(names:<String>["android.intent.action.SCANRESULT"]);receiver.messages.listen(print);receiver.start(); ...
BroadcastReceiver,LocalBroadcastReceiver 区别 AlertDialog,popupWindow,Activity区别 Application 和 Activity 的 Context 对象的区别 Android属性动画特性 如何导入外部数据库? LinearLayout、RelativeLayout、FrameLayout的特性及对比,并介绍使用场景。 谈谈对接口与回调的理解 ...
import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.os.Build; import android.os.Bundle; import androidx.annotation.NonNull; import androidx.annotation.Nullable; ...
eventChannel.setStreamHandler(connectivityBroadcastReceiver); } // ... 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 在dart端,同样创建一个EventChannel,用于接收native返回的stream /// Connection status check result. enum ConnectivityResult { /// has network. ...
现在在您的主活动中创建sms广播子类，并在下面声明。并在收到短信时访问结果。在你的颤动侧，只需像...
BIND_DEVICE_ADMIN:请求系统管理员receiver BIND_DREAM_SERVICE:由一个DreamService要求的服务 BIND_INCALL_SERVICE:请求MidiDeviceService服务 BIND_INPUT_METHOD:请求InputMethodService服务 BIND_MIDI_DEVICE_SERVICE:由一MidiDeviceService要求的服务 BIND_NFC_SERVICE:由HostApduServiceOffHostApduService要求的服务 ...