iOS – 编程技术记录 https://blog.z6z8.cn 世界你好! Fri, 30 Jul 2021 07:48:02 +0000 zh-Hans hourly 1 https://wordpress.org/?v=6.8.3 Xcode调试iPhone真机 ：code signature version is no longer supported https://blog.z6z8.cn/2021/07/30/xcode%e8%b0%83%e8%af%95iphone%e7%9c%9f%e6%9c%ba-%ef%bc%9acode-signature-version-is-no-longer-supported/ Fri, 30 Jul 2021 07:48:02 +0000 http://blog.z6z8.cn/?p=1073 Details Unable to install "MyApp" Domain: com.apple.dt.MobileDeviceErrorDomain Code: -402620375 - The code signature version is no longer supported. Domain: com.apple.dt.MobileDeviceErrorDomain Code: -402620375 User Info: { DVTRadarComponentKey = 261622; MobileDeviceErrorCode = "(0xE8008029)"; "com.apple.dtdevicekit.stacktrace" = ( 0 DTDeviceKitBase 0x000000011edd83b8 DTDKCreateNSErrorFromAMDErrorCode + 220 1 DTDeviceKitBase 0x000000011ee16ae1 __90-[DTDKMobileDeviceToken installApplicationBundleAtPath:withOptions:andError:withCallback:]_block_invoke + 155 2 DVTFoundation 0x0000000107881b7c DVTInvokeWithStrongOwnership + 71 3 DTDeviceKitBase 0x000000011ee16822 -[DTDKMobileDeviceToken installApplicationBundleAtPath:withOptions:andError:withCallback:] + 1440 4 IDEiOSSupportCore 0x000000011eccf999 __118-[DVTiOSDevice(DVTiPhoneApplicationInstallation) processAppInstallSet:appUninstallSet:installOptions:completionBlock:]_block_invoke.294 + 3534 5 DVTFoundation 0x00000001079b4931 __DVT_CALLING_CLIENT_BLOCK__ + 7 6 DVTFoundation 0x00000001079b655b __DVTDispatchAsync_block_invoke + 1191 7 libdispatch.dylib 0x00007fff20508603 _dispatch_call_block_and_release + 12 8 libdispatch.dylib 0x00007fff205097e6 _dispatch_client_callout + 8 9 libdispatch.dylib 0x00007fff2050f5ca _dispatch_lane_serial_drain + 606 10 libdispatch.dylib 0x00007fff2051008d _dispatch_lane_invoke + 366 11 libdispatch.dylib 0x00007fff20519bed _dispatch_workloop_worker_thread + 811 12 libsystem_pthread.dylib 0x00007fff206b04c0 _pthread_wqthread + 314 13 libsystem_pthread.dylib 0x00007fff206af493 start_wqthread + 15 ); } -

可能是因为对framework的签名不一致导致，有的是Do Not Embed, 有的是Embed and Sign

可能的解决办法：
App 的TARGETS -> General -> Frameworks,Libraries,and EmbeddedContent -> 将Embed and Sign修改为 Do Not Embed。

https://developer.apple.com/forums/thread/679182

]]> iOS 诡异的崩溃EXC_BREAKPOINT (code=1, subcode=0x1c5691d2c) https://blog.z6z8.cn/2020/03/10/ios-%e8%af%a1%e5%bc%82%e7%9a%84%e5%b4%a9%e6%ba%83exc_breakpoint-code1-subcode0x1c5691d2c/ Tue, 10 Mar 2020 15:39:28 +0000 http://blog.z6z8.cn/?p=823 系统 : iOS 13.3.1
机型： iPhone7

  dispatch_async(_jsContextQueue, ^{
        JSContext *jscontent = [[JSContext alloc] init];
        [UIWebView class];
    });

看代码，按照正常思维理解， [UIWebView class]是无论如何都不应崩溃的。

起初按照惯性思维去查找僵尸变量，忙活了半天没有定位。
最终定位结果如下：
在没有调用过UIWebView的任何函数时，先在非主线程调用UIWebView方法，则会导致崩溃

本文的相关代码如下

#import "ViewController.h"
#import <JavaScriptCore/JavaScriptCore.h>

@interface ViewController ()<UITableViewDelegate,UITableViewDataSource>
{
    dispatch_queue_t _jsContextQueue;
}
@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    _jsContextQueue = dispatch_queue_create("jscontext", NULL);
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        dispatch_async(_jsContextQueue, ^{
            JSContext *jscontent = [[JSContext alloc] init];
            [UIWebView class];
        });
    });
}
@end
]]> WKWebView ： html的input控件的onfocus事件被触发了两次 https://blog.z6z8.cn/2020/02/11/html%e7%9a%84input%e6%8e%a7%e4%bb%b6%e7%9a%84onfocus%e4%ba%8b%e4%bb%b6%e8%a2%ab%e8%a7%a6%e5%8f%91%e4%ba%86%e4%b8%a4%e6%ac%a1/ Tue, 11 Feb 2020 08:47:54 +0000 http://blog.z6z8.cn/?p=791 环境:

  • iOS 13.2 + WKWebView

现象一：
当不添加viewport时,onfocus被触发一次

<!DOCTYPE html>
<html>
    <head>
        <script>
            function onfocus123(e){
                console.log(456);
            }
        </script>
    </head>
    <body>
        <span>test_input</span>
        <input id="test_input" type="text" onfocus="onfocus123(event)">
    </body>
</html>
第一次点击input输入框 第二次点击input输入框
输出：456 输出: 456

现象一：
当添加viewport时,onfocus被触发两次

<!DOCTYPE html>
<html>
    <head>
        <script>
            function onfocus123(e){
                console.log(456);
            }
        </script>
        <meta name="viewport" content="width=device-width, initial-scale=1.0,maximum-scale=1.0, minimum-scale=1.0, viewport-fit=cover,user-scalable=no">
    </head>
    <body>
        <span>test_input</span>
        <input id="test_input" type="text" onfocus="onfocus123(event)">
    </body>
</html>
第一次点击input输入框 第二次点击input输入框
输出：456 456 输出: 456

暂时没有比较好的解决办法。

另，参考https://patrickhlauke.github.io/touch/tests/results/，

There is some oddity/bug in iOS 12.2, with ,  and  being fired twice when first tapping on the control. The experimental WebKit feature for pointer events also generates some duplicate pointerup events.

可知，基于WebKit的浏览器如WKWebView,Safari，在一些版本上（如12.2）会有奇怪的bug,事件mousedown、mouseup、click在第一次进入控件时会被触发两次。

其他相关讨论可见https://greensock.com/forums/topic/21397-ios-13-safariwkwebview-draggable-double-dispatching-click-events/

]]> Objective-C:动态创建新类（Class） https://blog.z6z8.cn/2019/11/29/objective-c%e5%8a%a8%e6%80%81%e5%88%9b%e5%bb%ba%e6%96%b0%e7%b1%bb%ef%bc%88class%ef%bc%89/ https://blog.z6z8.cn/2019/11/29/objective-c%e5%8a%a8%e6%80%81%e5%88%9b%e5%bb%ba%e6%96%b0%e7%b1%bb%ef%bc%88class%ef%bc%89/#respond Fri, 29 Nov 2019 03:10:40 +0000 http://blog.z6z8.cn/?p=592 动态创建一个类，NewClass ，继承自NSObject

Class newClass = objc_allocateClassPair([NSObject class], "NewClass", 0);

//向运行时注册这个类
objc_registerClassPair(newClass);

//从运行时销毁这个类
objc_disposeClassPair(newClass);
]]> https://blog.z6z8.cn/2019/11/29/objective-c%e5%8a%a8%e6%80%81%e5%88%9b%e5%bb%ba%e6%96%b0%e7%b1%bb%ef%bc%88class%ef%bc%89/feed/ 0 Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service https://blog.z6z8.cn/2019/11/07/could-not-signal-service-com-apple-webkit-webcontent-113-could-not-find-specified-service/ https://blog.z6z8.cn/2019/11/07/could-not-signal-service-com-apple-webkit-webcontent-113-could-not-find-specified-service/#respond Thu, 07 Nov 2019 07:18:27 +0000 http://blog.z6z8.cn/?p=547 接手一个项目，Debug运行后打开WKWebView的页面，Xcode报出日志

Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service

解决办法：
在WKWebView在Window上显示之前，不要加载网页
直白的代码如下：

[self.view addSubView:wkwebView];
[wkwebView loadRequest:request]
]]> https://blog.z6z8.cn/2019/11/07/could-not-signal-service-com-apple-webkit-webcontent-113-could-not-find-specified-service/feed/ 0 WKWebView：适配H5页面的显示尺寸 https://blog.z6z8.cn/2019/11/04/wkwebview%ef%bc%9a%e9%80%82%e9%85%8dh5%e9%a1%b5%e9%9d%a2%e7%9a%84%e6%98%be%e7%a4%ba%e5%b0%ba%e5%af%b8/ https://blog.z6z8.cn/2019/11/04/wkwebview%ef%bc%9a%e9%80%82%e9%85%8dh5%e9%a1%b5%e9%9d%a2%e7%9a%84%e6%98%be%e7%a4%ba%e5%b0%ba%e5%af%b8/#respond Mon, 04 Nov 2019 03:29:01 +0000 http://blog.z6z8.cn/?p=544 一般的同样的html代码，在UIWebView和WKWebView中显示效果是不一样的。例如

<!DOCTYPE html>
<html>
    <body>
        <span>test_input</span>
        <input id="test_input" type="text">
    </body>
</html>

显示效果：

可以看出两者有明显的区别。
那么如何适配呢？有两个方法（本质上是一个）。
1、如果是H5适配WKWebView的话，需要在H5添加如下代码

<meta name="viewport" content="width=device-width">

完整的html如下

<!DOCTYPE html>
<html>
    <head>
        <meta name="viewport" content="width=device-width">
    </head>
    <body>
        <span>test_input</span>
        <input id="test_input" type="text">
    </body>
</html>

2、如果是WKWebView适配H5的话，那么就需要替前端添加相同的H5代码，实现如下

 //js代码，在文档加载完毕后，添加head的子节点
 //节点内容为<meta name="viewport" content="width=device-width">
        let jScript = "var meta = document.createElement('meta'); meta.setAttribute('name', 'viewport'); meta.setAttribute('content', 'width=device-width'); document.getElementsByTagName('head')[0].appendChild(meta);";
        let wkUScript = WKUserScript.init(source: jScript, injectionTime: WKUserScriptInjectionTime.atDocumentEnd, forMainFrameOnly: true);
        let wkUController = WKUserContentController.init();
        wkUController.addUserScript(wkUScript);

        let wkconfig = WKWebViewConfiguration.init();
        wkconfig.userContentController = wkUController;

        _webView = WKWebView.init(frame: CGRect.init(x: 0, y: 0, width: self.view.bounds.size.width, height: self.view.bounds.size.height), configuration: wkconfig);
        self.view.addSubview(_webView);

        let htmlfile = Bundle.main.path(forResource: "test", ofType: ".html");
        let url = URL.init(fileURLWithPath: htmlfile!);
        let request = URLRequest.init(url: url);
        _webView.load(request);

参考 https://blog.csdn.net/GYMotgm/article/details/77944163

]]> https://blog.z6z8.cn/2019/11/04/wkwebview%ef%bc%9a%e9%80%82%e9%85%8dh5%e9%a1%b5%e9%9d%a2%e7%9a%84%e6%98%be%e7%a4%ba%e5%b0%ba%e5%af%b8/feed/ 0 iOS xcodebuild自动构建常用命令 https://blog.z6z8.cn/2019/10/30/ios-xcodebuild%e8%87%aa%e5%8a%a8%e6%9e%84%e5%bb%ba%e5%b8%b8%e7%94%a8%e5%91%bd%e4%bb%a4/ https://blog.z6z8.cn/2019/10/30/ios-xcodebuild%e8%87%aa%e5%8a%a8%e6%9e%84%e5%bb%ba%e5%b8%b8%e7%94%a8%e5%91%bd%e4%bb%a4/#respond Wed, 30 Oct 2019 02:17:27 +0000 http://blog.z6z8.cn/?p=537 列出工作空间中的所有scheme 
xcodebuild -list -workspace abc.xcworkspace

输出
Information about workspace "abc":
    Schemes:
            abc
        AFNetworking
        FMDB
        GTMBase64
        Minizip
        Pods-abc

列出项目的所有target及Configurations

xcodebuild -list -project abc.xcodeproj

输出
Information about project "abc":
    Targets:
        abc

    Build Configurations:
        Debug
        Release

    If no build configuration is specified and -scheme is not passed then "Release" is used.

    Schemes:
        abc

编译指定的scheme或Target

指定scheme

xcodebuild -workspace abc.xcworkspace -scheme test

或者

xcodebuild -project abc.xcodeproj -scheme test

此时默认编译Release版

指定target

xcodebuild -project abc.xcodeproj -target test

指定 configuration

xcodebuild -workspace abc.xcworkspace -scheme test -configuration Debug

此时编译Debug版

指定编译依赖的sdk环境

xcodebuild -workspace abc.xcworkspace -scheme test -configuration Debug -sdk iphoneos

将使用名字为iphoneos（真机版）的sdk环境编译，同样的-sdk iphonesimulator指定编译模拟器版本

需要注意的，当不指定-sdk参数时，xcodebuild的某些版本会同时构建mac ,iPhone, iPad对应的版本

指定编译输出产物的目录

BUILD_DIR，在自动打包时很有用

xcodebuild -workspace abc.xcworkspace -scheme test -configuration Debug -sdk iphoneos BUILD_DIR=/a/b/c/d/e

指定Xcode支持的其他配置

以bitcode为例，设置键ENABLE_BITCODE的值：

xcodebuild -workspace abc.xcworkspace -scheme test ENABLE_BITCODE=NO

其他配置的键需要打开xcode的具体项目配置文件自行寻找

]]> https://blog.z6z8.cn/2019/10/30/ios-xcodebuild%e8%87%aa%e5%8a%a8%e6%9e%84%e5%bb%ba%e5%b8%b8%e7%94%a8%e5%91%bd%e4%bb%a4/feed/ 0