首先我們看下NSException

NSException是什麼?

最熟悉的陌生人，這是我對NSException的概述，為什麼這麼說呢？其實很多開發者接觸到NSException的頻率非常頻繁，但很多人都不知道什麼是NSException，不知道如何使用NSException。下面從一張截圖開始講起NSException。

直接上程式碼！

//
//  MyUncaughtExceptionHandler.h
//  RuiYang
//
//  Created by Mac on 2018/7/20.
//  Copyright © 2018年 xiangxx. All rights reserved.
//

#import <Foundation/Foundation.h>

// 崩潰日誌

@interface MyUncaughtExceptionHandler : NSObject


+ (void)setDefaultHandler;


+ (NSUncaughtExceptionHandler *)getHandler;


+ (void)TakeException:(NSException *) exception;

@end
 

//
//  MyUncaughtExceptionHandler.m
//  RuiYang
//
//  Created by Mac on 2018/7/20.
//  Copyright © 2018年 xiangxx. All rights reserved.
//

#import "MyUncaughtExceptionHandler.h"

// 返回沙盒地址
NSString * applicationDocumentsDirectory()
{
    return [NSSearchPathForDirectoriesInDomains (NSCachesDirectory , NSUserDomainMask , YES ) firstObject];
}

// 出現崩潰時的回撥函式
void UncaughtExceptionHandler(NSException * exception)
{
    NSArray * arr = [exception callStackSymbols];
    // 崩潰的原因  可以有崩潰的原因(陣列越界,字典nil,呼叫未知方法...) 崩潰的控制器以及方法
    NSString * reason = [exception reason];
    NSString * name = [exception name];
    
    NSString * url = [NSString stringWithFormat:@"========異常錯誤報告========\nname:%@\nreason:\n%@\ncallStackSymbols:\n%@",name,reason,[arr componentsJoinedByString:@"\n"]];
    NSString * path = [applicationDocumentsDirectory() stringByAppendingPathComponent:@"ExceptionLog.txt"];
    // 將txt檔案寫入沙盒
    [url writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:nil];
    
}


@implementation MyUncaughtExceptionHandler

+ (void)setDefaultHandler
{
    NSSetUncaughtExceptionHandler(&UncaughtExceptionHandler);
}

+ (NSUncaughtExceptionHandler *)getHandler
{
    return NSGetUncaughtExceptionHandler();
}

+ (void)TakeException:(NSException *)exception
{
    NSArray * arr = [exception callStackSymbols];
    NSString * reason = [exception reason];
    NSString * name = [exception name];
    NSString * url = [NSString stringWithFormat:@"========異常錯誤報告========\nname:%@\nreason:\n%@\ncallStackSymbols:\n%@",name,reason,[arr componentsJoinedByString:@"\n"]];
    NSString * path = [applicationDocumentsDirectory() stringByAppendingPathComponent:@"ExceptionLog.txt"];
    [url writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:nil];
}



@end
 

#import <Foundation/Foundation.h>

@interface StatisRequestErrorData : NSObject

+ (void)showXcodeInfo;

@end

#import "StatisRequestErrorData.h"
#import "MyUncaughtExceptionHandler.h"

@implementation StatisRequestErrorData

#pragma mark -- 崩潰日誌
+ (void)showXcodeInfo{
    
    [MyUncaughtExceptionHandler setDefaultHandler];
    
    // 傳送崩潰日誌
    NSString *path = [NSSearchPathForDirectoriesInDomains (NSCachesDirectory , NSUserDomainMask , YES ) firstObject];
    NSString *dataPath = [path stringByAppendingPathComponent:@"ExceptionLog.txt"];
    NSData *data = [NSData dataWithContentsOfFile:dataPath];
    if (data != nil) {
        [StatisRequestErrorData sendExceptionLogWithData:data];
    }else{
        NSLog(@"沒有崩潰日誌");
    }
}

#pragma mark -- 傳送崩潰日誌
+ (void)sendExceptionLogWithData:(NSData *)data
{
    NSLog(@"======資料上傳奔潰日誌成功=========");
    NSString * path = [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject] stringByAppendingPathComponent:@"ExceptionLog.txt"];
    [StatisRequestErrorData removeDocumentWithFilePath:path];
}

// 刪除本地奔潰日誌
+ (BOOL)removeDocumentWithFilePath:(NSString*)filePath{
    
    BOOL isRemove = false;
    NSFileManager* fileManager=[NSFileManager defaultManager];
    if ([[NSFileManager defaultManager]fileExistsAtPath:filePath]) {
        isRemove = [fileManager removeItemAtPath:filePath error:nil];
    }
    return isRemove;
}


@end
 

在AppDelegate中

@implementation AppDelegate


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

    //統計計奔潰日誌
    [StatisRequestErrorData showXcodeInfo];
    
    return YES;
}

reason 是異常的原因

name  是異常的名稱