简单实现android短信发送器

 package com.example.sendinfo; import java.util.ArrayList; import java.util.Iterator; import android.os.Bundle; import android.support.v7.app.ActionBarActivity; import android.telephony.SmsManager; import android.text.TextUtils; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class MainActivity extends ActionBarActivity implements OnClickListener { //获取数据的对象 private EditText et_number; private EditText et_content; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); et_number = (EditText) findViewById(R.id.et_number); et_content = (EditText) findViewById(R.id.et_input_content); Button bt_send = (Button) findViewById(R.id.bt_send); bt_send.setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.bt_send: //获取用户输入的数据 String content = et_content.getText().toString().trim(); String number = et_number.getText().toString().trim(); if(TextUtils.isEmpty(content) || TextUtils.isEmpty(number)){ Toast.makeText(this, "电话号码或者内容不能为空", Toast.LENGTH_SHORT).show(); return; }else{ //发送短信API   ：得到一个信息管理器 实例 SmsManager smsManager = SmsManager.getDefault(); //短信大于70字符时，则将短信拆分成多条发送 ArrayList contents = smsManager.divideMessage(content); for(String string : contents) { smsManager.sendTextMessage(number, null, string, null, null); } } break; default: break; } } }