Android small program sample code for sending text messages

This article mainly introduces the example of a small program for sending text messages during development in Android. The article also comes with an example of an upgraded version of sending text messages that monitors broadcast receivers. Friends who need it can refer to it

The above picture is the code structure diagram.

Now let’s look at the specific code.

Send.java

package cn.com.sms.send; 
 
import java.util.ArrayList; 
import java.util.Iterator; 
 
import android.app.Activity; 
import android.app.PendingIntent; 
import android.content.Intent; 
import android.os.Bundle; 
import android.telephony.SmsManager; 
import android.util.Log; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Toast; 
 
public class Send extends Activity { 
  private String message; 
  private String number ; 
  private EditText editText; 
  private EditText editText2; 
  @Override 
  public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
     editText = (EditText) this.findViewById(R.id.number); 
     editText2 = (EditText)this.findViewById(R.id.message); 
     
    Button button = (Button)this.findViewById(R.id.button); 
    button.setOnClickListener(new View.OnClickListener() { 
       
      public void onClick(View v) { 
         number = editText.getText().toString(); 
         message = editText2.getText().toString(); 
         // 在LogCat中可以查看到number和message的相关信息 
         Log.i("number", number); 
         Log.i("message", message); 
         /*获取系统默认的信息管理器，一定要注意的是SmsManager是android.telephony.SmsManager;这和 
         *我们使用的版本有关，在 Android 2.0 以前 应该使用 android.telephony.gsm.SmsManager 
         *Android 2.0 之后的版本应该用 android.telephony.SmsManager。 
         */ 
        SmsManager smsManager = SmsManager.getDefault(); 
        /*PendingIntent.getBroadcast返回一个用于广播的PendingIntent对象，类似于调用Content.sendBroadcast(); 
         */ 
        PendingIntent paIntent = PendingIntent.getBroadcast(Send.this, 0, new Intent("SMS_SENT"), 0); 
        PendingIntent deliveryIntent = PendingIntent.getBroadcast(Send.this, 0, new Intent("SMS_DELIVERED"), 0); 
        // smsManager.pideMessage有些时候短信如果超过了字数，我们就需要这个方法来帮我们拆分短信内容。 
        ArrayList smses = smsManager.pideMessage(message); 
        Iterator iterator = smses.iterator(); 
        while(iterator.hasNext()){ 
          String temp = iterator.next(); 
          //发送短信 
          smsManager.sendTextMessage(number, null, temp, paIntent, deliveryIntent); 
        } 
        // 弹出一个浮动框显示提示内容，Toast.LENGTH_LONG代表浮动框显示时间的长短 
        Toast.makeText(Send.this, "短信发送完成", Toast.LENGTH_LONG).show(); 
 
         
      } 
    }); 
     
  } 
}

main.xml

AndroidManifest.xml

The final rendering is:

Like the phone call applet, two AVDs need to be opened here to perform functional testing.

Thinking:

The main class of text messaging application is SmsManager. Before Android 2.0, you should use android.telephony.gsm.SmsManager

, and later you should use android.telephony.SmsManager;

SmsManager smsManager = SmsManager.getDefault();

, which means to get the system default Information Manager

Series. SCADDDRESS, Text, DELIVERYINTENT) ：: target phone number #ACADDRESS: SS: SMS of the service provider The center number (such as China Mobile’s SMS center number) can be left blank for testing.

                                                                                                                                                                                                                       to have to have been sent to the system to be sent to  --> Intent packaging SMS Send

status
意

-DeliveryIntent: Send-& gt; China Mobile-& gt successful sending; --> Follow-up processing: This intention packages the status information of whether the SMS has been received by the other party (the supplier has sent it successfully, but the other party has not received it).

public

static

PendingIntent getBroadcast (Context context, int requestCode, Intent intent, int flags)

Returns a PendingIntent for broadcast, similar to calling Context.sendBroadcast( )
FunctionrequestCode is not used for the time being
intent is the intent used for broadcastflags include: FLAG_ONE_SHOT, FLAG_NO_CREATE, FLAG_CANCEL_CURRENT
, FLAG_UP
DATE
_CURRENT is used to set the newly created PendingIntent to be used once, if not, do not create, cancel the current, updatecurrent, etc.properties. In addition, we also need to declare the SMS sending permission in AndroidManifest.xml.

Sometimes, when our two AVDs simulate sending text messages, we will find that sometimes the The program cannot be used normally. The system will prompt us NO DNS servers found, and the DNS service cannot be found. This situation is usually caused by your computer not being connected to the network.

Send text message:

##

SmsManager smsMgr = SmsManager.getDefault();  
smsMgr.sendTextMessage(address, null, message, null, null);

Show text message writing interface:

Uri smsToUri = Uri.parse("smsto://10086");  
Intent mIntent = new Intent( android.content.Intent.ACTION_SENDTO, smsToUri );  
startActivity( mIntent );

Send email:

Intent i = new Intent(Intent.ACTION_SEND);  
i.putExtra(Intent.EXTRA_EMAIL, address);  
i.putExtra(Intent.EXTRA_SUBJECT, filename);  
i.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + filename)); ;  
i.setType("text/csv");  
startActivity(Intent.createChooser(i, "EMail File"));

Upgraded version:

This code adds a broadcast to it Receiver monitoring. The detailed code is as follows

package cn.com.sms.send; 
 
import java.util.ArrayList; 
import java.util.Iterator; 
 
import android.app.Activity; 
import android.app.PendingIntent; 
import android.content.BroadcastReceiver; 
import android.content.Context; 
import android.content.Intent; 
import android.content.IntentFilter; 
import android.os.Bundle; 
import android.telephony.SmsManager; 
import android.util.Log; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Toast; 
 
public class Send extends Activity { 
  private String message; 
  private String number ; 
  private EditText editText; 
  private EditText editText2; 
  @Override 
  public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
     editText = (EditText) this.findViewById(R.id.number); 
     editText2 = (EditText)this.findViewById(R.id.message); 
     
    Button button = (Button)this.findViewById(R.id.button); 
    button.setOnClickListener(new View.OnClickListener() { 
       
      public void onClick(View v) { 
         number = editText.getText().toString(); 
         message = editText2.getText().toString(); 
         // 在LogCat中可以查看到number和message的相关信息 
         Log.i("number", number); 
         Log.i("message", message); 
         /*获取系统默认的信息管理器，一定要注意的是SmsManager是android.telephony.SmsManager;这和 
         *我们使用的版本有关，在 Android 2.0 以前 应该使用 android.telephony.gsm.SmsManager 
         *Android 2.0 之后的版本应该用 android.telephony.SmsManager。 
         */ 
        SmsManager smsManager = SmsManager.getDefault(); 
        /*PendingIntent.getBroadcast返回一个用于广播的PendingIntent对象，类似于调用Content.sendBroadcast(); 
         */ 
        PendingIntent paIntent = PendingIntent.getBroadcast(Send.this, 0, new Intent("SMS_SENT2"), 0); 
        PendingIntent deliveryIntent = PendingIntent.getBroadcast(Send.this, 0, new Intent("SMS_DELIVERED2"), 0); 
         
        // 注册一个BroadcastReceiver,当有匹配它的IntentFilter的Intent出现时，该方法会被触发 
        registerReceiver(new BroadcastReceiver(){ 
 
          @Override 
          public void onReceive(Context context, Intent intent) { 
            int resultCode = getResultCode(); 
            switch(resultCode){ 
            case Activity.RESULT_OK: 
              Toast.makeText(getBaseContext(), "信息发送成功了哦、", Toast.LENGTH_LONG).show(); 
              break; 
            default: 
              Toast.makeText(getBaseContext(), "信息发送失败了哦、", Toast.LENGTH_LONG).show(); 
               
            } 
          } 
           
           
        }, new IntentFilter("SMS_SENT2")); 
         
         
        registerReceiver(new BroadcastReceiver() { 
           
          @Override 
          public void onReceive(Context context, Intent intent) { 
            Toast.makeText(getBaseContext(), "deliveryIntent", Toast.LENGTH_LONG).show(); 
            Log.i("短信接收人是否查看信息", "看了"); 
          } 
        }, new IntentFilter("SMS_DELIVERED2")); 
         
         
         
        // smsManager.pideMessage有些时候短信如果超过了字数，我们就需要这个方法来帮我们拆分短信内容。 
        ArrayList smses = smsManager.pideMessage(message); 
        Iterator iterator = smses.iterator(); 
        while(iterator.hasNext()){ 
          String temp = iterator.next(); 
          //发送短信 
          smsManager.sendTextMessage(number, null, temp, paIntent, deliveryIntent); 
        } 
        // 弹出一个浮动框显示提示内容，Toast.LENGTH_LONG代表浮动框显示时间的长短 
        Toast.makeText(Send.this, "短信发送完成", Toast.LENGTH_LONG).show(); 
 
         
      } 
    }); 
     
  } 
}

main.xml and AndroidManifest.xml are the same as the previous code.

registerReceiver() is used to register broadcast receivers. This method is defined in Content.

public abstract Intent registerReceiver(BroadcastReceiver receiver,IntentFilter filter); If the system

queries

to find a broadcast that satisfies the filter, it will teach it to the receiver and let it process it. Generally it is handled in its onReceive() method.

如果不是在代码中主动通过registerReceiver()进行注册，那么就要从AndroidManifest.xml进行配置，代码如下

这里需要注意，在配置文件中activity标签和receiver标签是平级的。

在模拟器中发送中文会接收方出现乱码的问题，但是在真机中，就不会出现乱码的情况了。所以开发者只需要正常开发短信功能，不需要编码转换。

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