//1.进入系统短信列表界面

Intent intent = newIntent(Intent.ACTION_MAIN);

intent.addCategory(Intent.CATEGORY_DEFAULT);

intent.setType("vnd.android-dir/mms-sms");

startActivity(intent);

//2》进入短信发送界面

Intent intent = new Intent(Intent.ACTION_VIEW);

intent.putExtra("address", "186...");

intent.putExtra("sms_body", "短信内容");

intent.setType("vnd.android-dir/mms-sms");

startActivity(intent);

 Intent intent = new Intent(Intent.ACTION_CALL,Uri.parse("tel:"+number));    
 startActivity(intent);