我们这里介绍两中方法,一种通过后台写接口,另一种是通过用户来给开发者发邮件的形式来分析崩溃信息。下面开始介绍第一种
1.iOS开发中我们会遇到程序抛出异常退出的情况,如果是在调试的过程中,异常的信息是一目了然,我们可以很快的定位异常的位置并解决问题。那么当应用已经打包,iPhone设备通过ipa的包安装应用后,在使用过程发现crash,那么如何获取crash日志呢?对于保密性要求不高的程序来说,也可以选择各种一条龙Crash统计产品,如 Crashlytics,Hockeyapp ,友盟,Bugly 等等,不过IOS SDK中提供了一个现成的函数 NSSetUncaughtExceptionHandler 用来做异常处理
首先创建一个MyUncaughtExceptionHandler类 (名字可以自己起)实现崩溃时调用的函数,下面我粘贴我程序中的完整代码,你们需要用的时候可以直接复制就可以.
下面第一种方法是,后台配合,如果收到崩溃信息,后台以邮件的方式发到公司邮箱
#import// 崩溃日志
@interface MyUncaughtExceptionHandler : NSObject
+ (void)setDefaultHandler;
+ (NSUncaughtExceptionHandler *)getHandler;
+ (void)TakeException:(NSException *) exception;
end
#import "MyUncaughtExceptionHandler.h"
#import "AFNetworking.h"
// 返回沙盒地址
NSString * applicationDocumentsDirectory()
{
return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
}
// 出现崩溃时的回调函数
void UncaughtExceptionHandler(NSException * exception)
{
NSArray * arr = [exception callStackSymbols];
NSString * reason = [exception reason]; // 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 = [NSString stringWithFormat:@"========异常错误报告========\nname:%@\nreason:\n%@\ncallStackSymbols:\n%@",name,reason,[arr componentsJoinedByString:@"\n"]];
NSString * path = [applicationDocumentsDirectory() stringByAppendingPathComponent:@"Exception.txt"];
// 将txt文件写入沙盒
[url writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:nil];
}
@implementation MyUncaughtExceptionHandler
// 返回沙盒地址
-(NSString *)applicationDocumentsDirectory
{
return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
}
+ (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:@"========异常错误报告========\nname:%@\nreason:\n%@\ncallStackSymbols:\n%@",name,reason,[arr componentsJoinedByString:@"\n"]];
NSString * path = [applicationDocumentsDirectory() stringByAppendingPathComponent:@"Exception.txt"];
[url writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:nil];
}
@end
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];
if (data != nil) {
[self sendExceptionLogWithData:data];
}
return YES;
}
#pragma mark -- 发送崩溃日志
- (void)sendExceptionLogWithData:(NSData *)data
{
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; manager.requestSerializer.timeoutInterval = 5.0f;
//告诉AFN,支持接受 text/xml 的数据
[AFJSONResponseSerializer serializer].acceptableContentTypes = [NSSet setWithObject:@"text/plain"];
NSString *urlString = @"后台地址";
[manager POST:urlString parameters:nil constructingBodyWithBlock:^(id_Nonnull formData) {
[formData appendPartWithFileData:data name:@"file" fileName:@"Exception.txt" mimeType:@"txt"];
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nonnull responseObject) {
//在这里处理你的沙河里面的数据,需要把数据清除掉
//获取的沙河路径
NSString *crashtext = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject]stringByAppendingPathComponent:@"Exception.txt"];//
//清除沙河数据
[[NSFileManager defaultManager]removeItemAtPath:crashtext error:nil];
} failure:^(NSURLSessionDataTask * _Nonnull task, NSError * _Nonnull error) {
}];
}
2中方法
在APP delegate.m中的最上方加上以下代码
例如:#import "DemoAppDelegate.h"
#import "DemoViewController.h"
void UncaughtExceptionHandler(NSException *exception) {NSArray *arr = [exception callStackSymbols];NSString *reason = [exception reason];NSString *name = [exception name];NSString *urlStr = [NSString stringWithFormat:@"mailto://suifeng_89@163.com?subject=bug报告&body=感谢您的配合!
""错误详情:%@--------------------------%@---------------------%@", name,reason,[arr componentsJoinedByString:@""]];
NSURL *url = [NSURL URLWithString:[urlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];[[UIApplication sharedApplication] openURL:url];}@implementation DemoAppDelegate@synthesize window;@synthesize viewController;
在- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions方法内加入下面这句代码
NSSetUncaughtExceptionHandler (&UncaughtExceptionHandler);
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