是否有任何Flutter插件或文章可以做到。
我想要的是：即使在应用终止后，也可以在飞镖内部运行一种使用来电号码作为参数的方法。
即使在flutter应用终止或关闭后，也可以通过任何方式运行代码。
场景：当用户接到电话时。该数字应添加到我在flutter应用程序中编写的flutter函数中。该函数将检查我的数据库中的号码并将该号码共享给API。
即使应用程序被杀死，我也需要在后台运行此过程。（例如Truecaller）
Main.dart
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
static const platform = const MethodChannel('samples.flutter.dev/battery');
// Get battery level.
String _batteryLevel = 'Unknown battery level.';
Future<void> _getBatteryLevel() async {
String batteryLevel;
try {
final int result = await platform.invokeMethod('getBatteryLevel');
batteryLevel = 'Battery level at $result % .';
} on PlatformException catch (e) {
batteryLevel = "Failed to get battery level: '${e.message}'.";
}
setState(() {
_batteryLevel = batteryLevel;
});
}
void _incrementCounter() {
setState(() {
_counter++;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(_batteryLevel),
Text(
'$_counter',
style: Theme.of(context).textTheme.headline4,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _getBatteryLevel,
tooltip: 'Increment',
child: Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
}
MainActivity.java
package com.ashbu.flutterappbackground;
import androidx.annotation.NonNull;
import io.flutter.embedding.android.FlutterActivity;
import io.flutter.embedding.engine.FlutterEngine;
import io.flutter.plugin.common.MethodChannel;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.widget.Toast;
public class MainActivity extends FlutterActivity {
private static final String CHANNEL = "samples.flutter.dev/battery";
AlarmManager alarmManager;
PendingIntent pendingIntent;
@Override
public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
super.configureFlutterEngine(flutterEngine);
alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent alarmIntent = new Intent(this, MyBroadcastReceiver.class);
pendingIntent = PendingIntent.getBroadcast(this, 0, alarmIntent, 0);
new MethodChannel(flutterEngine.getDartExecutor().getBinaryMessenger(), CHANNEL)
.setMethodCallHandler(
(call, result) -> {
// Note: this method is invoked on the main thread.
if (call.method.equals("getBatteryLevel")) {
startAlarm();
} else {
cancelAlarm();
}
}
);
}
private void startAlarm() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
alarmManager.setAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, 0, pendingIntent);
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
alarmManager.setExact(AlarmManager.RTC_WAKEUP, 0, pendingIntent);
} else {
alarmManager.set(AlarmManager.RTC_WAKEUP, 0, pendingIntent);
}
}
private void cancelAlarm() {
alarmManager.cancel(pendingIntent);
Toast.makeText(getApplicationContext(), "Alarm Cancelled", Toast.LENGTH_LONG).show();
}
}
MyBroadcastReciever.java
package com.ashbu.flutterappbackground;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;
public class MyBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")) {
//
Intent serviceIntent = new Intent(context, MyService.class);
context.startService(serviceIntent);
// } else {
// Toast.makeText(context.getApplicationContext(), "Alarm Manager just ran", Toast.LENGTH_LONG).show();
// }
Toast.makeText(context, "TeleDuce Customer .",
Toast.LENGTH_LONG).show();
// Vibrate the mobile phone
}
}
MyPhoneReciever.java
package com.ashbu.flutterappbackground;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.util.Log;
public class MyPhoneReciever extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Bundle extras = intent.getExtras();
if (extras != null) {
String state = extras.getString(TelephonyManager.EXTRA_STATE);
Log.w("MY_DEBUG_TAG", state);
if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
String phoneNumber = extras
.getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
Log.w("MY_DEBUG_TAG", phoneNumber);
}
}
}
}
MyServices.java
package com.ashbu.flutterappbackground;
import android.app.AlarmManager;
import android.app.IntentService;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import androidx.annotation.Nullable;
public class MyService extends IntentService {
public MyService() {
super("MyService");
}
@Override
protected void onHandleIntent(@Nullable Intent intent) {
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent alarmIntent = new Intent(this, MyBroadcastReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, alarmIntent, 0);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, 0, 10000, pendingIntent);
}
}
这里不需要MyPhoneReceiver.java ...
将MyBroadcastReceiver代码更改为此...
package com.ashbu.flutterappbackground;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.PhoneStateListener;
import android.widget.Toast;
import android.telephony.TelephonyManager;
public class MyBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(final Context context, Intent intent) {
TelephonyManager telephony = (TelephonyManager)context.getSystemService(Service.TELEPHONY_SERVICE);
telephony.listen(new PhoneStateListener(){
@Override
public void onCallStateChanged(int state, String incomingNumber) {
super.onCallStateChanged(state, incomingNumber);
System.out.println("incomingNumber : "+incomingNumber);
Toast.makeText(context, "TeleDuce Customer "+ incomingNumber,
Toast.LENGTH_LONG).show();
}
},PhoneStateListener.LISTEN_CALL_STATE);
}
}
主要是使移动电话可以访问应用程序...（在权限设置中）