从广播接收呼叫活动的方法 [英] call activity method from broadcast receiver

问题描述

在主要活动，一个布局被加载，有一些输入字段和提交按钮。当点击提交按钮时，onclick处理方法发送短信回相同的手机号码：

In the main activity, a layout is loaded that has some input fields and a submit button. When the submit button is clicked, the onClick handler method sends an sms back to the same mobile number :

SmsManager sms = SmsManager.getDefault();
sms.sendTextMessage(number, null, "hi", null, null);

有定义的广播接收机截获的消息：

There is a broadcast receiver defined that intercepts the message :

public class SmsReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    Bundle pdusBundle = intent.getExtras();
    Object[] pdus=(Object[])pdusBundle.get("pdus");
    SmsMessage messages=SmsMessage.createFromPdu((byte[]) pdus[0]);
    if(messages.getMessageBody().contains("hi")){
        abortBroadcast();
    }

}
}

现在，从广播接收器，我想调用一个函数（参数），这是在我的主要活动。那可能吗？如果是的话，我应该加入我的广播接收器有什么样的code？

Now, from the broadcast receiver, I want to call a function(with parameter), which is within my main activity. Is that possible? If yes, what kind of code should i add in my broadcast receiver ?

推荐答案

感谢@Manishika。要精心，制作，而不是将其定义在清单中的BroadcastReceiver动态，并获得成功。所以在我的广播接收机类，我添加了code：

Thanks @Manishika. To elaborate, making the Broadcastreceiver dynamic, instead of defining it in the manifest, did the trick. So in my broadcast receiver class, i add the code :

MainActivity main = null;
void setMainActivityHandler(MainActivity main){
    this.main=main;
}

在的BroadcastReceiver类的onReceive函数结束，我打电话的主要活动的功能：

In the end of the onReceive function of the BroadcastReceiver class, I call the main activity's function :

main.verifyPhoneNumber("hi");

在主要活动，我动态地定义和发送短信之前注册的广播接收器：

In the main activity, I dynamically define and register the broadcast receiver before sending the sms :

SmsReceiver BR_smsreceiver = null;
            BR_smsreceiver = new SmsReceiver();
            BR_smsreceiver.setMainActivityHandler(this);
            IntentFilter fltr_smsreceived = new IntentFilter("android.provider.Telephony.SMS_RECEIVED");
            registerReceiver(BR_smsreceiver,fltr_smsreceived);  

这篇关于从广播接收呼叫活动的方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！