Click the Send SMS button to jump to the SMS interface to send SMS

Create a new Singleview code as follows:

#import   "ViewController.h" @interface  ViewController  () @end @implementation viewcontroller-   (void) Viewdidload {    [super viewdidload];    nslog (@ "%@", Nshomedirectory ());    uibutton *button = [uibutton  Buttonwithtype:uibuttontypecustom];    button.frame = cgrectmake (100, 100,  40, 30);     [button settitle:@ "Send"  forState:UIControlStateNormal];     [button settitlecolor:[uicolor blackcolor] forstate: uicontrolstatenormal];    button.backgroundcolor=[uicolor redcolor];     [self.view addsubview:button];    [button addtarget:self action : @selector (ButtonClick)  forcontrolevents:uicontroleventtouchupinside];} -  (void) buttonclick {       //first determine whether the current device can beTo send SMS     if ([Mfmessagecomposeviewcontroller cansendtext])     {         mfmessagecomposeviewcontroller *mc=[[ mfmessagecomposeviewcontroller alloc] init];                 //setting up a delegate          mc.messagecomposedelegate=self;                 //SMS Content         mc.body=[[NSString alloc]  initwithutf8string: "Hello"  ];                 //Set SMS Recipient         mc.recipients=[NSArray  arraywithobject:@ "10010"];                 [self presentviewcontroller:mc animated:yes completion:nil];    }else{             [[[uialertview alloc] initwithtitle:nil message:@ "Sorry, no this feature"   delegate:self cancelbuttontitle:@ "?"                            otherButtonTitles:nil, nil] show];         }}    //text message sent processing result-(void) Messagecomposeviewcontroller: ( mfmessagecomposeviewcontroller *) Controller didfinishwithresult: (Messagecomposeresult) result{     switch  (Result)     {         case MessageComposeResultSent:             nslog (@ "text message sent successfully");             break;        case  Messagecomposeresultcancelled:            nslog (@ " Text message cancelled ");             [ self dismissviewcontrolleranimated:yes completion:nil];             break;        case  Messagecomposeresultfailed:            nslog (@ " Text message failed ");            break;         default:             nslog (@ "Error happens");             break;      }    } @end 

Click the Send SMS button to jump to the SMS interface to send SMS