微信支付

先到

下载完成后

然后把SDK导入工程

然后到

注册完得到相关的信息

打开SDK里面会有一个read_me.txt

然后导入类库

然后到info.plist导入

<key>LSApplicationQueriesSchemes</key>
<array>
<string>weixin</string>
</array>
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>

然后info.info.plist

看看有没有

然后点击工程

然后到工程AppDelegate.m

微信测试 APPID wxb4ba3c02aa476ea1
1.导入微信支付 SDK，注册微信支付
2.设置微信APPID 为URL Schemes
3.发起支付，调用微信支付
4.处理支付结果

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

[WXApi registerApp:@"这里写APPID"
withDescription:@"wxdemo"];//这里天名字

return YES;
}

然后在AppDelegate.m上面的代码下面添加

-(void)onResp:(BaseResp *)resp
{
if ([resp isKindOfClass:[PayResp class]])
{
//返回支付结果,实际支付结果需要取微信服务端查询
NSString *strMsg = @"支付结果";
switch (resp.errCode) {
case WXSuccess:
strMsg = @"支付成功";
NSLog(@"支付成功-PaySuccess,resp.errCode = %d",resp.errCode);
break;

default:
strMsg = @"支付失败";
NSLog(@"支付失败-PaySuccess,resp.errCode = %d,resp.errStr = %@",resp. errCode,resp.errStr);
break;
}

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:[NSString stringWithFormat:@"%d",resp.errCode ]message:resp.errStr preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *sure = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {

}];
[alertController addAction:sure];
[self.window.rootViewController presentViewController:alertController animated:YES completion:^{

}];
}
}

然后在在上面代码的下面添加

//跳到第三方时调用
-(BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<NSString *,id> *)options
{
return [WXApi handleOpenURL:url delegate:self];
}

//支付完或分享完
-(BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url
{
return [WXApi handleOpenURL:url delegate:self];
}

然后在ViewController.m文件里吗添加

+ (NSString *)jumpToBizPay {

if (![WXApi isWXAppInstalled])
{
NSLog(@"该设备没有安装微信");
return @"该设备没有安装微信";
}

if (![WXApi isWXAppSupportApi])
{
NSLog(@"该设备不支持,支付功能");
return @"该设备不支持,支付功能";
}

//============================================================
// V3&V4支付流程实现
// 注意:参数配置请查看服务器端Demo
// 更新时间：2015年11月20日
//============================================================
NSString *urlString   = @"http://wxpay.weixin.qq.com/pub_v2/app/app_pay.php?plat=ios";
//解析服务端返回json数据
NSError *error;
//加载一个NSURL对象
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]];
//将请求的url数据放到NSData对象中
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
if ( response != nil) {
NSMutableDictionary *dict = NULL;
//IOS5自带解析类NSJSONSerialization从response中解析出数据放到字典中
dict = [NSJSONSerialization JSONObjectWithData:response options:NSJSONReadingMutableLeaves error:&error];

NSLog(@"url:%@",urlString);
if(dict != nil){
NSMutableString *retcode = [dict objectForKey:@"retcode"];
if (retcode.intValue == 0){
NSMutableString *stamp  = [dict objectForKey:@"timestamp"];

//调起微信支付
PayReq* req             = [[PayReq alloc] init];
req.partnerId           = [dict objectForKey:@"partnerid"];
req.prepayId            = [dict objectForKey:@"prepayid"];
req.nonceStr            = [dict objectForKey:@"noncestr"];
req.timeStamp           = stamp.intValue;
req.package             = [dict objectForKey:@"package"];
req.sign                = [dict objectForKey:@"sign"];
[WXApi sendReq:req];
//日志输出
NSLog(@"appid=%@\npartid=%@\nprepayid=%@\nnoncestr=%@\ntimestamp=%ld\npackage=%@\nsign=%@",[dict objectForKey:@"appid"],req.partnerId,req.prepayId,req.nonceStr,(long)req.timeStamp,req.package,req.sign );
return @"";
}else{
return [dict objectForKey:@"retmsg"];
}
}else{
return @"服务器返回错误，未获取到json对象";
}
}else{
return @"服务器返回错误";
}
}

然后创建点击事件

- (void)viewDidLoad {
[super viewDidLoad];

UIButton *button=[[UIButton alloc] initWithFrame:CGRectMake([UIScreen mainScreen].bounds.size.width/2-50, [UIScreen mainScreen].bounds.size.height/2-30, 100, 30)];
[button setTitle:@"微信支付" forState:UIControlStateNormal];

[button addTarget:self action:@selector(payAction:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];
}

- (void)payAction:(UIButton *)sender
{
NSLog(@"%@",[ViewController jumpToBizPay]);
}