Activity类：

import java.util.List;

import android.app.Activity; import android.app.PendingIntent; import android.content.Intent; import android.os.Bundle; import android.telephony.SmsManager; import android.view.View; import android.view.View.OnClickListener; import android.widget.*;

public class SmsActivity extends Activity {

 private EditText phoneText;   private EditText contentText;       @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);                 phoneText=(EditText)findViewById(R.id.phoneText);         contentText=(EditText)findViewById(R.id.contentText);                 sendSms();     }         public void sendSms(){               Button button=(Button)findViewById(R.id.button);         button.setOnClickListener(new SmsOnClick());     }         private final class SmsOnClick implements OnClickListener{   @Override   public void onClick(View v) {    String phonenumber=phoneText.getText().toString();    String content=contentText.getText().toString();        if(phonenumber==null||phonenumber.length()<1){     Toast.makeText(SmsActivity.this, R.string.empty, Toast.LENGTH_SHORT).show();    }else{     SmsManager smsManager = SmsManager.getDefault();     PendingIntent sentIntent = PendingIntent.getBroadcast(SmsActivity.this,0, new Intent(), 0);     if (content.length() > 70) {// 如果字数超过70,需拆分成多条短信发送      List<String> msgs = smsManager.divideMessage(content);      for (String msg : msgs) {       smsManager.sendTextMessage(phonenumber, null, msg, sentIntent, null);       // 最后二个参数为短信已发送的广播意图,最后一个参数为短信对方已收到短信的广播意图      }     } else {      smsManager.sendTextMessage(phonenumber, null, content, sentIntent, null);     }    }   }          } }

 

Manifest添加sms permission

<uses-permission android:name="android.permission.SEND_SMS"/>