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

 [self recordCrashCount];

}

- (void)applicationWillTerminate:(UIApplication *)application {

 [[NSUserDefaults standardUserDefaults] setObject:@(NO) forKey:@"JJ_isCrash"];
 [[NSUserDefaults standardUserDefaults] synchronize];
}

// 判断和记录崩溃的次数

- (void)recordCrashCount{

 BOOL isCrash = [[[NSUserDefaults standardUserDefaults] valueForKey:@"JJ_isCrash"] boolValue];

 [[NSUserDefaults standardUserDefaults] setObject:@(YES) forKey:@"JJ_isCrash"];

 if (isCrash == YES) {

  //获取到本地存储的崩溃次数
  NSNumber *crashNum = [[NSUserDefaults standardUserDefaults] valueForKey:@"JJ_crashCount"];

  NSInteger count =0;

  if (crashNum != nil) {

   count = [crashNum integerValue];

  }

  count++;

  //判断崩溃次数达到多少次时执行操作

  if (count >= crashCount) {

   NSLog(@"多次崩溃");

   //将本地文件崩溃次数重新置为0
   [[NSUserDefaults standardUserDefaults] setObject:@0 forKey:@"JJ_crashCount"];

   // 5秒后执行弹窗警告操作
   [self performSelector:@selector(showAlertAction)withObject:nil afterDelay:5];
   return;
  }

  //崩溃次数未达到3次则向本地存储崩溃次数
  crashNum = [NSNumber numberWithInteger:count];
  [[NSUserDefaults standardUserDefaults] setObject:crashNum forKey:@"JJ_crashCount"];
 }
}

// 弹出升级警告

- (void)showAlertAction{

UIAlertController*alert

=

[UIAlertControlleralertControllerWithTitle:@"警告"message:@"检测到软件多次异常退出，建议您尽快更新到最新版本！" preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction*sure = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefaulthandler:nil];

[alert addAction:sure];

[self.window.rootViewController presentViewController:alert animated:YES completion:nil];

}

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

 // 参数crashCount为崩溃多少次后执行block中的代码
 [[JJRecordCrash shareInstance] recordCrashWithCrashCount:2 handle:^{
  // 多次崩溃后执行自己想执行的代码，如：清除缓存 提示用户更新
  NSLog(@"崩溃啦");
 }];

 return YES;
}