1.Pods中导入Sentry类，使用终端pod install安装Sentry到项目中

pods导入

2.项目中创建Crash类，用于捕获异常，将崩溃前的错误日志保存本地

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface Crash : NSObject
// 崩溃时的回调函数
void uncaughtExceptionHandler(NSException *exception);
@end

NS_ASSUME_NONNULL_END

#import "Crash.h"

@implementation Crash
void uncaughtExceptionHandler(NSException *exception){
    NSArray *stackArry= [exception callStackSymbols];
    NSString *reason = [exception reason];
    NSString *name = [exception name];
    
    NSString *exceptionInfo = [NSString stringWithFormat:@"Exception name:%@\nException reatoin:%@\nException stack :%@",name,reason,stackArry];
    
    //NSLog(@"%@",exceptionInfo);
    //保存到本地沙盒中
    [exceptionInfo writeToFile:[NSString stringWithFormat:@"%@/Documents/Exception.txt",NSHomeDirectory()] atomically:YES encoding:NSUTF8StringEncoding error:nil];
}
@end

3.在appdelegate.m中导入Sentry、Crash类

//导入sentry错误异常捕捉
#import "Sentry.h"
//系统捕获异常
#import "Crash.h"

4.在- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 方法中进行设置

    //启动sentry异常捕获
    [self startSentry];
    
    
    //注册消息处理函数的处理方法
    NSSetUncaughtExceptionHandler(&uncaughtExceptionHandler);
    //获取本地崩溃日志
    NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    NSString *dataPath = [path stringByAppendingPathComponent:@"Exception.txt"];
    NSData *data = [NSData dataWithContentsOfFile:dataPath];
    if (data != nil) {
        //发送崩溃日志
        [self sendExceptionLogWithData:data path:dataPath];
        
        //清除本地崩溃日志
        NSFileManager *fileManager = [NSFileManager defaultManager];
        [fileManager removeItemAtPath:dataPath error:nil];
    }

#pragma mark - 异常处理
//启动sentry日志捕获
- (void)startSentry {
    //1.设置dsn
    NSError *error = nil;
    SentryClient *client = [[SentryClient alloc] initWithDsn:@"http://56b9d6fd9f4c4ca38ea96f0cc1ebfae6@1.193.162.246:14903/4" didFailWithError:&error];
    SentryClient.sharedClient = client;
    [SentryClient.sharedClient startCrashHandlerWithError:&error];
    if (nil != error) {
        NSLog(@"%@", error);
    }
    
    //2.开启面包屑高级功能
    //SentryClient.sharedClient.maxBreadcrumbs = 100;
    [SentryClient.sharedClient enableAutomaticBreadcrumbTracking];
}
- (void)sendExceptionLogWithData:(NSData *)data path:(NSString *)path {
    SentryEvent *event = [[SentryEvent alloc] initWithLevel:kSentrySeverityFatal];
    event.message = [data mj_JSONString];
    //用于判断环境
    if ([kServerUrl isEqualToString:@"http://172.16.0.145:50120/gangquan360-app"]) {
        event.environment = @"debug";//dev sit uat pro 四个环境
    }else if ([kServerUrl isEqualToString:@"http://yfb.gangquan360.com:14701/appapi/gangquan360-app"]){
        event.environment = @"preview";//dev sit uat pro 四个环境
    }else if ([kServerUrl isEqualToString:@"http://app.gangquan360.com/gangquan360-app"]){
        event.environment = @"release";//dev sit uat pro 四个环境
    }
    //event.extra = dic; //请求参数
    [SentryClient.sharedClient sendEvent:event withCompletionHandler:^(NSError * _Nullable error) {
        if (nil != error) {
            NSLog(@"%@", error);
        }
    }];
}

项目崩溃后，退出app，再次进入app时，查找本地报错文件是否有数据，如果有数据，将数据传到Sentry后端地址，并清理本地报错日志。