Intent intent=new Intent(Intent.ACTION_SEND);
intent.setType("text/plain"); //"image/*"
intent.putExtra(Intent.EXTRA_SUBJECT,"共享软件");
intent.putExtra(Intent.EXTRA_TEXT, "我在安卓市场发现了个好东东【通讯录】，快来......下载吧！！安卓市场里面还有很多应用来看看吧！");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(Intent.createChooser(intent, "选择分享类型"));

 //发邮件   private   void  sendMail(String emailBody){  Intent email =  new  Intent(android.content.Intent.ACTION_SEND);  email.setType( "plain/text" );  String  emailSubject =  "共享软件" ;  //设置邮件默认地址   // email.putExtra(android.content.Intent.EXTRA_EMAIL, emailReciver);   //设置邮件默认标题
        email.putExtra(android.content.Intent.EXTRA_SUBJECT, emailSubject);  //设置要默认发送的内容
        email.putExtra(android.content.Intent.EXTRA_TEXT, emailBody);  //调用系统的邮件系统   startActivityForResult(Intent.createChooser(email,  "请选择邮件发送软件" ), 1001 );  }  

  //发短信   private   void  sendSMS(){  Uri smsToUri = Uri.parse( "smsto:" );  Intent sendIntent =  new  Intent(Intent.ACTION_VIEW, smsToUri);  //sendIntent.putExtra("address", "123456"); // 电话号码，这行去掉的话，默认就没有电话   sendIntent.putExtra( "sms_body" ,  "我要共享这个软件" );  sendIntent.setType( "vnd.android-dir/mms-sms" );  startActivityForResult(sendIntent, 1002 );  }  

EditText num=(EditText)findViewById(R.id.num);EditText content=(EditText)findViewById(R.id.content);String mobile=num.getText().toString();String smstext=content.getText().toString();//获取SmsManager
SmsManager sms=SmsManager.getDefault();//如果内容大于70字，则拆分为多条
List<String> texts=sms.divideMessage(smstext);//逐条发送短信for(String text:texts){sms.sendTextMessage(mobile, null, text, null, null);}                //发送结果提示
Toast.makeText(SendSMS.this, "发送成功", Toast.LENGTH_LONG).show();