iOS 之获取崩溃日志-白红宇

iOS 之获取崩溃日志

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发布时间：2019-05-27

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为了更好的维护iosAPP,处理程序崩溃是必需要做的,那么如何收集用户使用时出现的崩溃呢,基本的方法如下:

1.上传appStore的app，可以通过iTunes Stroe获取

2.利用Xcode获取。

3. Crashlytics，Hockeyapp ，友盟，Bugly 等等。

4.通过 SDK中提供了一个现成的函数 NSSetUncaughtExceptionHandler 用来做异常处理
利用NSSetUncaughtExceptionHandler，当程序异常退出的时候，可以先进行处理，然后做一些自定义的动作,并通知开发者，是大多数软件都选择的方法。下面就介绍如何在iOS中实现:

第一步:创建崩溃获取类crash

.h文件

@interface Crash : NSObject

崩溃时的回调函数

void uncaughtExceptionHandler(NSException *exception);

@end

.m文件:

#import "Crash.h"

@implementation Crash

void uncaughtExceptionHandler(NSException *exception){

NSArray *stackArry= [exception callStackSymbols];

NSString *reason = [exception reason];

NSString *name = [exception name];

NSString *exceptionInfo = [NSStringstringWithFormat:@"Exception name:%@\nException reatoin:%@\nException stack :%@",name,reason,stackArry];

NSLog(@"%@",exceptionInfo);

//保存到本地沙盒中

[exceptionInfo writeToFile:[NSStringstringWithFormat:@"%@/Documents/eror.log",NSHomeDirectory()] atomically:YES encoding:NSUTF8StringEncoding error:nil];

}

@end

第二步在Appdelegate中注册消息方法

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

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

self.window.backgroundColor = [UIColor whiteColor];

//注册消息处理函数的处理方法

NSSetUncaughtExceptionHandler(&uncaughtExceptionHandler);

// 发送崩溃日志

NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];

NSString *dataPath = [path stringByAppendingPathComponent:@"Exception.txt"];

NSData *data = [NSData dataWithContentsOfFile:dataPath];

if (data != nil) {

[self sendExceptionLogWithData:data path:dataPath];

}

第三步:崩溃日志发动到服务器

#pragma mark -- 发送崩溃日志

- (void)sendExceptionLogWithData:(NSData *)data path:(NSString *)path {

AFHTTPSessionManager *manager = [AFHTTPSessionManagermanager];

manager.requestSerializer.timeoutInterval = 5.0f;

//告诉AFN，支持接受 text/xml 的数据

[AFJSONResponseSerializerserializer].acceptableContentTypes = [NSSetsetWithObject:@"text/plain"];

NSString *urlString = @"后台地址";

[manager POST:urlString parameters:nilconstructingBodyWithBlock:^(id<AFMultipartFormData> _NonnullformData) {

[formData appendPartWithFileData:data name:@"file"fileName:@"Exception.txt" mimeType:@"txt"];

} success:^(NSURLSessionDataTask * _Nonnull task, id _Nonnull responseObject) {

// 删除文件

NSFileManager *fileManger = [NSFileManagerdefaultManager];

[fileManger removeItemAtPath:path error:nil];

} failure:^(NSURLSessionDataTask * _Nonnull task, NSError* _Nonnull error) {

}];

}

========================

#import <Foundation/Foundation.h>

@interface MyUncaughtExceptionHandler : NSObject

+ (void)setDefaultHandler;

+ (NSUncaughtExceptionHandler *)getHandler;

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

@end

****************

#import "MyUncaughtExceptionHandler.h"

#import "AFNetworking.h"

// 沙盒的地址

NSString * applicationDocumentsDirectory() {

return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES)lastObject];

}

// 崩溃时的回调函数

void UncaughtExceptionHandler(NSException * exception) {

NSArray * arr = [exception callStackSymbols];

NSString * reason = [exceptionreason]; // // 崩溃的原因可以有崩溃的原因(数组越界,字典nil,调用未知方法...) 崩溃的控制器以及方法

NSString * name = [exception name];

NSString * url = [NSStringstringWithFormat:@"========异常错误报告========\nname:%@\nreason:\n%@\ncallStackSymbols:\n%@",name,reason,[arrcomponentsJoinedByString:@"\n"]];

NSString * path = [applicationDocumentsDirectory()stringByAppendingPathComponent:@"Exception.txt"];

// 将一个txt文件写入沙盒

[url writeToFile:pathatomically:YESencoding:NSUTF8StringEncodingerror:nil];

}

@implementation MyUncaughtExceptionHandler

// 沙盒地址

- (NSString *)applicationDocumentsDirectory {

return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES)lastObject];

}

+ (void)setDefaultHandler {

NSSetUncaughtExceptionHandler(&UncaughtExceptionHandler);

}

+ (NSUncaughtExceptionHandler *)getHandler {

returnNSGetUncaughtExceptionHandler();

}

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

NSArray * arr = [exception callStackSymbols];

NSString * reason = [exception reason];

NSString * name = [exception name];

NSString * url = [NSStringstringWithFormat:@"========异常错误报告========\nname:%@\nreason:\n%@\ncallStackSymbols:\n%@",name,reason,[arrcomponentsJoinedByString:@"\n"]];

NSString * path = [applicationDocumentsDirectory()stringByAppendingPathComponent:@"Exception.txt"];

[url writeToFile:pathatomically:YESencoding:NSUTF8StringEncodingerror:nil];

}

//============

//在appledelegate导入头文件加上一个异常捕获监听，用来处理程序崩溃时的回调动作在这里也要判断一下之前有没有崩溃日志如果有发送给服务器

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

//#pragma mark -- 崩溃日志

// [MyUncaughtExceptionHandler setDefaultHandler];

// // 发送崩溃日志

// NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];

// NSString *dataPath = [path stringByAppendingPathComponent:@"Exception.txt"];

// NSData *data = [NSData dataWithContentsOfFile:dataPath];