提问，关于如何启动一个App的问题

技能讨论
1

大家好，

小弟最近遇到一个需要从外部启动自己App的问题，搜索了论坛发现可以使用dlopen来做，代码如下：

int (*openApp)(CFStringRef, Boolean);
void *hndl = dlopen("/System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices", RTLD_LAZY);
openApp = (int(*)(CFStringRef, Boolean)) dlsym(hndl, "SBSLaunchApplicationWithIdentifier");
openApp(CFSTR("com.xxxxx.xxxxx"), FALSE);
dlclose(hndl);

编译报main.mm:9:112: error: use of undeclared identifier ‘RTLD_LAZY’，于是我就导入了头文件

#include <dlfcn.h>

结果又报Unsupported architecture

我尝试了7.1 、 8.4 、9.2三种SDK，都是报这个错误，求大家指点一下？？

2

报这个错的话，貌似是无伤大雅的；
你把完整的编译报错贴上来看看

3

谢狗神，完事的报错输出如下：

Making all for tool rootdaemond...
In file included from main.mm:1:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.2.sdk/usr/include/dlfcn.h:37:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.2.sdk/usr/include/sys/cdefs.h:707:2: error: 
      Unsupported architecture
#error Unsupported architecture
 ^
1 error generated.
 Compiling main.mm...
 Linking tool rootdaemond...
 Stripping rootdaemond...
 Signing rootdaemond...
Making stage for tool rootdaemond...
dm.pl: building package `com.iosre.rootdaemond:iphoneos-arm' in `./com.iosre.rootdaemond_1.0-15_iphoneos-arm.deb'
xiongzhend@xiongzhenddeMacBook-Pro:~/Code/rootdaemond$ make package
Making all for tool rootdaemond...
 Compiling main.mm...
main.mm:9:112: error: use of undeclared identifier 'RTLD_LAZY'
    void *hndl = dlopen("/System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices", RTLD_...
                                                                                                               ^
1 error generated.
make[2]: *** [obj/main.mm.14876ef0.o] Error 1
make[1]: *** [internal-tool-all_] Error 2
make: *** [rootdaemond.all.tool.variables] Error 2
4

怎么还会报这个错呢？

5

如果我不加头文件的话就会报

#include <dlfcn.h>

但加了就说Unsupported architecture

6

加了之后报的完整错贴一下

7 
[xiongzhend@xiongzhenddeMacBook-Pro:~/Code/rootdaemond$ make package
Making all for tool rootdaemond...
In file included from main.mm:1:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.1.sdk/usr/include/dlfcn.h:37:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.1.sdk/usr/include/sys/cdefs.h:655:2: error: 
      Unsupported architecture
#error Unsupported architecture
 ^
1 error generated.
 Compiling main.mm...
 Linking tool rootdaemond...
 Stripping rootdaemond...
 Signing rootdaemond...
Making stage for tool rootdaemond...
dm.pl: building package `com.iosre.rootdaemond:iphoneos-arm' in `./com.iosre.rootdaemond_1.0-12_iphoneos-arm.deb'

好像最后还是生成了.deb文件，但如果我把这个deb安装到手机上，再用iOSRERootDaemonTester去调用这个openApp的方法，是没有任何反应的，所以是否可以认为编译是不成功的？

8

编译成功

和

运行之后没有达到自己想要的效果

是两码事；我猜测是启动其他App，需要一定的entitlements

9

我理解为是给App加上Entitlements，而不是theos生成的tool吧？

我用ldid已经加上了，但是还是没启动App，验证如下：

ZHENde-iPhone5:/var/mobile/Containers/Bundle/Application/6962F13B-0915-4240-871E-7F55C4573B1A/DeamonDemo.app root# ldid -e DeamonDemo 
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>com.apple.springboard.launchapplications</key>
	<true/>
</dict>
</plist>ZHENde-iPhone5:/var/mobile/Containers/Bundle/Application/6962F13B-0915-4240-871E-7F55C4573B1A/DeamonDemo.app root#

但是，App无法再启动了，一启动就闪退，好消息是我确实可以通过notify把它给启动了，只是结果 一样，启动即闪退

10

成功了，造福一下后来人吧，流程如下：

其实理解错了，entitlements不是签名在App，而是写在tool的MakeFile里面

XXXX_CODESIGN_FLAGS=-SEntitlements.xml

就这句！！

如果给App签名了就会导致闪退，和论坛里面另一个人的日志显示是一样的，这个暂时不知道怎么处理，不过已经非常开心了，搞了两天了！