我们做iOS开发是一定会有很多的页面跳转，用代码写是不是很烦呢，特别使我们已经了解storyboard的方便，但有时候跳转是必要的要向下一个页面传送很多数据，所以我们又不得不用代码写，这是一个问题。
解决：- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
这个方法是使用storyboard连线跳转是触发的其中参数segue表示我们跳转连的那根线，他有几个属性：@property (nonatomic, readonly) NSString *identifier; 唯一标识，用于好几个线一起时，区分谁是谁。
@property (nonatomic, readonly) id sourceViewController; 原页面，就是线的开始端
@property (nonatomic, readonly) id destinationViewController; 跳转页面， 线的结束段
补：identifier的值可以在storyboard上点击线编辑
使用实例：
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:@"segueInformation"]) {
}
if ([segue.identifier isEqualToString:@"shoppingcartDe"]) { //判断是那条线
BMCLSingleDetailsViewController *vc = segue.destinationViewController;//找到目的页面，有目的页面就可以随意传数据了不是吗？
vc.shopId=sender;
}
if ([segue.identifier isEqualToString:@"segueDJJ"]) {
NSString *strID=@"";
for (GeneralMode *mode in _arrDataSoucre) {
strID= [strID stringByAppendingString:@","];
strID= [strID stringByAppendingString:mode.ID];
strID= [strID stringByReplacingCharactersInRange:NSMakeRange(0, 1) withString:@""];
}
BMCLVoucherViewController *vc=segue.destinationViewController;
vc.strGoodIDlist=strID;
[vc setBlockBackpric:^(CGFloat pric,NSString *strIdDJJ) {
_labDJJPirc.text=[NSString stringWithFormat:@"-￥%.2f",pric];
_strIdDJJ=strIdDJJ;
[self setMoney:pric];
}];
}
if ([segue.identifier isEqualToString:@"segueQDaddress"]) {
if (_modeAddress.ID.length == 0) {
BMVLAddAddressViewController * vc = [self.storyboard instantiateViewControllerWithIdentifier:NSStringFromClass([BMVLAddAddressViewController class])];
[self.navigationController pushViewController:vc animated:YES];
}else{
BMCLMyaddressViewController *vc=segue.destinationViewController;
vc.shoppingSign=@"123456";
vc.orderSIgn=_modeAddress.ID;
vc.blockShoopingChart=^(GeneralMode *mode){
_defaultTips.hidden=YES;
_labArea.text=[NSString stringWithFormat:@"%@ %@ %@",mode.provinceid,mode.cityid,mode.districtid];
_labDetlAddress.text=mode.detail;
_labNameAndPostCode.text=[NSString stringWithFormat:@"%@ %@",mode.nick_name,mode.post_code];
_labPhone.text=mode.receiver_phone;
_modeAddress=mode ;
};
vc.blockDel=^(NSString *str){
_defaultTips.hidden=NO;
_labArea.text=@"";
_labDetlAddress.text=@"";
_labNameAndPostCode.text=@"";
_labPhone.text=@"";
_modeAddress=nil;
};
}
}
if ([segue.identifier isEqualToString:@"segueQRFP"]) {
BMCLInvoiceViewController *vc=segue.destinationViewController;
[vc setBlockBackInfo:^(GeneralMode *modeFP) {
_modeFP=modeFP;
_labFPType.text=modeFP.strType;
}];
}