我正在尝试在Android设备上收听任何收到的短信息，然后每当收到短信息时在我的flutter应用程序中显示祝酒词。我正在通过EventChannel连接到Flutter，并使用广播接收器检测短信。每当广播接收器检测到短信息时，如何发送events.success(message)
我尝试将广播接收器直接添加到EventChannel中，但没有成功。颤振短信包似乎也不起作用。
我的主要活动是这样的：
public class MainActivity extends FlutterActivity{
public static final String STREAM = "com.myapp.thisapp/stream";
public static final String TAG = "THIS IS A MESSAGE: ";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
GeneratedPluginRegistrant.registerWith(this);
new EventChannel(getFlutterView(), STREAM).setStreamHandler(
new EventChannel.StreamHandler() {
@Override
public void onListen(Object args, final
EventChannel.EventSink events) {
//Send events.success() when SMS received
Log.w(TAG, "adding listener");
}
@Override
public void onCancel(Object args) {
Log.w(TAG, "cancelling listener");
}
}
);
}
}
这是我的广播接收器的代码：
public class IncomingSmsBroadcastReceiver extends BroadcastReceiver {
private static final String SMS_RECEIVED = "android.provider.Telephony.SMS_RECEIVED";
@Override
public void onReceive(final Context context, final Intent intent) {
if (intent != null && SMS_RECEIVED.equals(intent.getAction())) {
final SmsMessage smsMessage = extractSmsMessage(intent);
processMessage(context, smsMessage);
}
}
private SmsMessage extractSmsMessage(final Intent intent) {
final Bundle pudsBundle = intent.getExtras();
final Object[] pdus = (Object[]) pudsBundle.get("pdus");
final SmsMessage smsMessage = SmsMessage.createFromPdu((byte[]) pdus[0]);
return smsMessage;
}
private void processMessage(final Context context, final SmsMessage smsMessage) {
//TODO: Send message to event channel
}
}
每当广播接收器遇到短消息时，我希望将消息的内容发送到EventChannel，EventChannel将消息文本发送到颤振前端。我该怎么做？
最佳答案
这是您应该在MainActivity中使用的，存储结果
public class MainActivity extends FlutterActivity{
public static final String STREAM = "com.myapp.thisapp/stream";
public static final String TAG = "THIS IS A MESSAGE: ";
public Result resultLater;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
GeneratedPluginRegistrant.registerWith(this);
new MethodChannel(getFlutterView(), CHANNEL).setMethodCallHandler(
new MethodCallHandler() {
@Override
public void onMethodCall(MethodCall call, Result result) {
//store the reference for later access
resultLater = result;
}
});
}
public class IncomingSmsBroadcastReceiver extends BroadcastReceiver {
private static final String SMS_RECEIVED = "android.provider.Telephony.SMS_RECEIVED";
@Override
public void onReceive(final Context context, final Intent intent) {
if (intent != null && SMS_RECEIVED.equals(intent.getAction())) {
final SmsMessage smsMessage = extractSmsMessage(intent);
processMessage(context, smsMessage);
}
}
private SmsMessage extractSmsMessage(final Intent intent) {
final Bundle pudsBundle = intent.getExtras();
final Object[] pdus = (Object[]) pudsBundle.get("pdus");
final SmsMessage smsMessage = SmsMessage.createFromPdu((byte[]) pdus[0]);
return smsMessage;
}
}
private void processMessage(final Context context, final SmsMessage smsMessage) {
//here send back result, like this
if(smsMessage.getMessageBody()!=null){
result.success(smsMessage.getMessageBody());
}else{
result.error("Error", "Sms not found", null);
}
}
}
现在，在您的主要活动中创建SMS广播子类，并在下面声明。当你收到短信的时候就可以访问结果。从你颤振的一侧，像往常一样进行频道呼叫。
按照参考文献中的docs sample进行操作。
关于java - 通过EventChannel将Android SMS BroadcastReceiver数据发送到Flutter，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/54088421/