Question

我遵循了使用BroadcastReceiver

接收短信的教程

https://www.youtube.com/watch?v=h-zYXVODiPo

我使用完全相同的代码。启用Telnet客户端。我的设备是否需要先植根？我不知道这个问题。请帮忙。

这是我的MainActivity

public class MainActivity extends Activity {

    BroadcastReceiver receiver;


    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        IntentFilter filter = new IntentFilter("android.provider.Telephony.SMS_RECEIVED");
        receiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context arr0, Intent arr1) {
                processReceiver(arr0,arr1);

            }
        };
        registerReceiver(receiver,filter);


    }

    public void onDestroy(){
        super.onDestroy();
        unregisterReceiver(receiver);
    }

    public void processReceiver(Context context,Intent intent){
        Toast.makeText(context,"RECEIVED",Toast.LENGTH_LONG).show();
        TextView lbs = (TextView)findViewById(R.id.textView1);

        Bundle bundle = intent.getExtras();
        Object[] objArr = (Object[])bundle.get("pdus");
        String sms="";



        for(int i=0;i>objArr.length;i++){
            SmsMessage smsMsg = SmsMessage.createFromPdu((byte[])objArr[i]);
            String smsBody = smsMsg.getMessageBody();
            String senderNumber = smsMsg.getDisplayOriginatingAddress();
            sms+= "From: "+senderNumber+"\nContent: "+smsBody+"\n";
        }
        lbs.setText(sms);
    }

这是我的Manifest.XML

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="gavadev.com.smsreceiver">

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21"/>
    <uses-permission android:name="android.permission.RECEIVE_SMS" />


    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>


        <activity android:name=".Main2Activity"></activity>
    </application>

</manifest>

Answer 1

使用广播接收器，在销毁活动时不会取消注册：

public class MyReceiver extends BroadcastReceiver{

@Override
public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub


    if(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED"))
    {
        // your processing will go here...
    }

}

}

通过清单文件注册接收器，如下所示：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.broadcastreceiverpremier"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-permission android:name="android.permission.RECEIVE_SMS"/>

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.broadcastreceiverpremier.MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <receiver android:name="MyReceiver">
        <intent-filter>
            <action android:name="android.provider.Telephony.SMS_RECEIVED"/>
        </intent-filter>
    </receiver>
</application>

短信收件人不工作

1 个答案: