iOS發送短信並設置短信內容

- (void)messageButtonEvent{

    // 短信號碼可以爲空
    NSString *phone = [NSString stringWithFormat:@"10086"];// 發短信的號碼
    NSString *content = @"祝願你新春歡樂！閤家歡樂！萬事如意！百事順心！幸福美滿！吉星高照！花開富貴！迎福納祥！四季發財！";
    NSString *urlStr = [NSString stringWithFormat:@"sms://%@&body=%@", phone, content];
    // 對中文進行編碼 不進行中文編碼，可能到時短信內容爲null
    urlStr = [urlStr stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]]; 
    NSURL *url = [NSURL URLWithString:urlStr];
    
    if (@available(iOS 10.0, *)) {
        [[UIApplication sharedApplication] openURL:url options:@{} completionHandler:nil];
    } else {
        [[UIApplication sharedApplication] openURL:url];
    }
}