一、Cycript的介绍与安装
Cycript是由Cydia创始人Saurik推出的一款脚本语言,Cycript 混合了Objective-C与javascript语法的解释器,这意味着我们能够在一个命令中用Objective-C或者javascript,甚至两者兼用。
它能够挂钩正在运行的进程,能够在运行时修改应用的很多东西。
Cycript的安装简单,可在越狱设备上从Cydia自带源Cydia/Telesphoreo下载,直接打开设备上的Cydia然后搜索Cycript后安装即可。
二、Cycript脚本命令的简单使用
1.new Instance根据地址获取对象,和直接使用#号获取对象
cy# var view=[[UIView alloc] init]
#"<UIView: 0x11fa8aec0; frame = (0 0; 0 0); layer = <CALayer: 0x280436980>>"
cy# view.tag = 5
5
cy# [#0x11fa8aec0 tag]
5
cy# var p = new Instance(0x11fa8aec0)
#"<UIView: 0x11fa8aec0; frame = (0 0; 0 0); tag = 5; layer = <CALayer: 0x280436980>>"
cy# p.tag
5
2.choose传递一个类,可以在内存中找出属于这个类的对象
cy# choose(XLFloatBtn)
[#"<XLFloatBtn: 0x110da03b0; baseClass = UIButton; frame = (374 428; 40 40); opaque = NO; layer = <CALayer: 0x280301c60>>"]
3.打印视图层次
UIApp.keyWindow.recursiveDescription().toString()
cy# UIApp.keyWindow.recursiveDescription().toString()
`<UIWindow: 0x10530f7d0; frame = (0 0; 414 896); opaque = NO; autoresize = W+H; gestureRecognizers = <NSArray: 0x280c20540>; layer = <UIWindowLayer: 0x280222d20>>
| <UIImageView: 0x1053179a0; frame = (0 0; 414 896); autoresize = W+H; userInteractionEnabled = NO; layer = <CALayer: 0x280219540>>
| <UITransitionView: 0x10530f190; frame = (0 0; 414 896); autoresize = W+H; layer = <CALayer: 0x28020cc20>>
| | <UIDropShadowView: 0x105318500; frame = (0 0; 414 896); autoresize = W+H; layer = <CALayer: 0x28020cb60>>
| | | <CTStandaloneView: 0x105323c40; frame = (0 0; 414 896); autoresize = W+H; layer = <CALayer: 0x28020c500>>
| | | | <CTStageView: 0x105324360; frame = (0 0; 414 896); autoresize = W+H; layer = <CAEAGLLayer: 0x28020c680>>
| | | | <WKWebView: 0x105815000; frame = (9.5 -1000; 300 250); layer = <CALayer: 0x280230f40>>
| | | | | <WKScrollView: 0x106116800; baseClass = UIScrollView; frame = (0 0; 300 250); clipsToBounds = YES; gestureRecognizers = <NSArray: 0x280c7dc80>; layer = <CALayer: 0x280318c20>; contentOffset: {0, -48}; contentSize: {300, 202}; adjustedContentInset: {48, 0, 0, 0}>
| | | | | | <WKContentView: 0x10581a400; frame = (0 0; 300 202.041); transform = [0.30612245202064514, 0, 0, 0.30612245202064514, 0, 0]; anchorPoint = (0, 0); gestureRecognizers = <NSArray: 0x280c7eb50>; layer = <CALayer: 0x280231c00>>
| | | | | | | <UIView: 0x10531ea20; frame = (0 0; 980 660); anchorPoint = (0, 0); clipsToBounds = YES; layer = <CALayer: 0x280318b60>>
| | | | | | | | <UIView: 0x10511b010; frame = (0 0; 980 660); autoresize = W+H; layer = <CALayer: 0x28031d260>>
| | | | | | | | | <WKCompositingView: 0x110dd52f0; frame = (0 0; 980 660); layer = <CALayer: 0x280303920>> layerID = 1 "drawing area root"
| | | | | | | | | | <WKCompositingView: 0x110db7d20; frame = (0 0; 980 660); anchorPoint = (0, 0); clipsToBounds = YES; layer = <CALayer: 0x2803021e0>> layerID = 2 "content root"
| | | | | | | | | | | <WKCompositingView: 0x110db8700; frame = (0 0; 980 660); layer = <CALayer: 0x2803038a0>> layerID = 5 "RenderView 0x104e85070"
| | | | | | | | | | | | <WKCompositingView: 0x110da27a0; frame = (0 0; 0 0); transform = [3.2666666507720947, 0, 0, 3.2666666507720947, 0, 0]; layer = <CALayer: 0x280303800>> layerID = 6 "TileGrid container"
| | | | | | | | | | | | | <WKPlainRemoteLayer: 0x2803039c0> layerID = 8 "tile at 0,0" (layer)
| | | | | | | | | | | | <WKCompositingView: 0x110da39f0; frame = (0 0; 0 0); layer = <CALayer: 0x280303a60>> layerID = 7 "Page TiledBacking containment"
| | | | | | | | | | | <WKCompositingView: 0x105314640; frame = (0 0; 0 0); layer = <CALayer: 0x280302060>> layerID = 3 "Document overlay Container"
| | | | | | | <_UILayerHostView: 0x118cb7900; frame = (0 0; 0 0); layer = <CALayerHost: 0x28031bfa0>>
| | | | | | <UIView: 0x110da2d30; frame = (0 0; 0 0); anchorPoint = (0, 0); opaque = NO; layer = <CALayer: 0x2803196c0>>
| | | | | | | <UITextSelectionView: 0x10511ef10; frame = (0 0; 0 0); userInteractionEnabled = NO; layer = <CALayer: 0x28031e820>>
| | | | | | | | <UIView: 0x10511f130; frame = (0 0; 0 0); userInteractionEnabled = NO; layer = <CALayer: 0x28031e840>>
| | | | | | <_UIScrollViewScrollIndicator: 0x110da4ed0; frame = (294 3; 3 196); alpha = 0; autoresize = LM; layer = <CALayer: 0x28031a520>>
| | | | | | | <UIView: 0x110da5060; frame = (0 0; 3 196); layer = <CALayer: 0x28031a540>>
| | | | | | <_UIScrollViewScrollIndicator: 0x110da4bd0; frame = (3 196; 294 3); alpha = 0; autoresize = TM; layer = <CALayer: 0x28031a4c0>>
| | | | | | | <UIView: 0x110da4d60; frame = (0 0; 294 3); layer = <CALayer: 0x28031a4e0>>
| <XLFloatBtn: 0x110da03b0; baseClass = UIButton; frame = (374 428; 40 40); opaque = NO; layer = <CALayer: 0x280301c60>>
| | <UIButtonLabel: 0x110db8470; frame = (6.5 12; 27 16); text = '\u5b58\u6863'; opaque = NO; userInteractionEnabled = NO; layer = <_UILabelLayer: 0x282123200>>
| <UIView: 0x121cc7d70; frame = (-2000 -2000; 0 0); clipsToBounds = YES; layer = <CALayer: 0x2803b2780>>`
4. 加载库
function loadFramework(fw) {
var h="/System/Library/",t="Frameworks/"+fw+".framework";
[[NSBundle bundleWithPath:h+t]||
[NSBundle bundleWithPath:h+"Private"+t] load];
}
5.使用NSLog
NSLog_ = dlsym(RTLD_DEFAULT, "NSLog")
NSLog = function() {
var types = 'v', args = [], count = arguments.length;
for (var i = 0; i != count; ++i) {
types += '@';
args.push(arguments[i]);
}
new Functor(NSLog_, types).apply(null, args);
}
6.Using CGGeometry functions
function CGPointMake(x, y) { return {x:x, y:y}; }
function CGSizeMake(w, h) { return {width:w, height:h}; }
function CGRectMake(x, y, w, h) { return {origin:CGPointMake(x,y), size:CGSizeMake(w, h)}; }
7.输出对象的属性
方法1: 简单基本获取方法。
*controller(直接在对象前面加个*)
方法2:方法一无法获取,就使用方法2
[i for (i in *UIApp)]
方法3:建议方法三,方法三能获取到更多
function tryPrintIvars(a){
var x={};
for(i in *a){
try{
x[i] = (*a)[i];
}
catch(e){}
}
return x;
}
8.根据类获取方法
function printMethods(className, isa) {
var count = new new Type("I");
var classObj = (isa != undefined) ? objc_getClass(className)->isa :
objc_getClass(className);
var methods = class_copyMethodList(classObj, count);
var methodsArray = [];
for(var i = 0; i < *count; i++) {
var method = methods[i];
methodsArray.push({selector:method_getName(method),
implementation:method_getImplementation(method)});
}
free(methods);
return methodsArray;
}
9.获取当前控制器
function currentVC() {
var app = [UIApplication sharedApplication]
var keyWindow = app.keyWindow
var rootController = keyWindow.rootViewController
var visibleController = rootController.visibleViewController
if (!visibleController){
return rootController
}
return visibleController.childViewControllers[0]
}
var vc = currentVC()
10.增加分类
cy# @implementation NSObject(MyCategory)
- description { return "hello"; }
- (double) f:(int)v {return v * 0.5;}
@end
cy# o = [new NSObject init]
#"hello"
cy# [o f:3]
1.5
11.创建Block
cy# block = ^ int (int value) {return value + 5;}
^int(int){}
cy# block(10)
15
四、简单实用
想要修改按钮,我们可以有很多方法,现在整理下:
第一种:打印当前视图层次结构找出按钮
第二种:通过dump Class 找出相应的类和头文件,然后再找出按钮。
第三种:通过choose UIButton类,找出按钮。
等等,其实有很多方法都可以找到,大家可以自己研究。
五、归纳
1.UIWindow.keyWindow() 获取keyWindow
2.UIApp 获取Application单例对象
3.recursiveDescription() 循环打印子视图
4.toString() 格式化打印(遇到\n换行)
5.# 对象地址。拿到该对象,可用于调用方法
6.* 对象地址。可以取出对象的成员变量
7.Choose(类名) 查询当前进程中该类型的对象。
pviews()
pvc()
pactions(#0xxxxxxxxx)
rp(#0xxxxxxxxx)
appid 当前bundleid
自定义脚本
(function(exports) {
var invalidParamStr = 'Invalid parameter';
var missingParamStr = 'Missing parameter';
// app id
CJAppId = [NSBundle mainBundle].bundleIdentifier;
// mainBundlePath
CJAppPath = [NSBundle mainBundle].bundlePath;
// document path
CJDocPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];
// caches path
CJCachesPath = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)[0];
// 加载系统动态库
CJLoadFramework = function(name) {
var head = "/System/Library/";
var foot = "Frameworks/" + name + ".framework";
var bundle = [NSBundle bundleWithPath:head + foot] || [NSBundle bundleWithPath:head + "Private" + foot];
[bundle load];
return bundle;
};
// keyWindow
CJKeyWin = function() {
return UIApp.keyWindow;
};
// 根控制器
CJRootVc = function() {
return UIApp.keyWindow.rootViewController;
};
// 找到显示在最前面的控制器
var _CJFrontVc = function(vc) {
if (vc.presentedViewController) {
return _CJFrontVc(vc.presentedViewController);
}else if ([vc isKindOfClass:[UITabBarController class]]) {
return _CJFrontVc(vc.selectedViewController);
} else if ([vc isKindOfClass:[UINavigationController class]]) {
return _CJFrontVc(vc.visibleViewController);
} else {
var count = vc.childViewControllers.count;
for (var i = count - 1; i >= 0; i--) {
var childVc = vc.childViewControllers[i];
if (childVc && childVc.view.window) {
vc = _CJFrontVc(childVc);
break;
}
}
return vc;
}
};
CJFrontVc = function() {
return _CJFrontVc(UIApp.keyWindow.rootViewController);
};
// 递归打印UIViewController view的层级结构
CJVcSubviews = function(vc) {
if (![vc isKindOfClass:[UIViewController class]]) throw new Error(invalidParamStr);
return vc.view.recursiveDescription().toString();
};
// 递归打印最上层UIViewController view的层级结构
CJFrontVcSubViews = function() {
return CJVcSubviews(_CJFrontVc(UIApp.keyWindow.rootViewController));
};
// 获取按钮绑定的所有TouchUpInside事件的方法名
CJBtnTouchUpEvent = function(btn) {
var events = [];
var allTargets = btn.allTargets().allObjects()
var count = allTargets.count;
for (var i = count - 1; i >= 0; i--) {
if (btn != allTargets[i]) {
var e = [btn actionsForTarget:allTargets[i] forControlEvent:UIControlEventTouchUpInside];
events.push(e);
}
}
return events;
};
// CG函数
CJPointMake = function(x, y) {
return {0 : x, 1 : y};
};
CJSizeMake = function(w, h) {
return {0 : w, 1 : h};
};
CJRectMake = function(x, y, w, h) {
return {0 : CJPointMake(x, y), 1 : CJSizeMake(w, h)};
};
// 递归打印controller的层级结构
CJChildVcs = function(vc) {
if (![vc isKindOfClass:[UIViewController class]]) throw new Error(invalidParamStr);
return [vc _printHierarchy].toString();
};
// 递归打印view的层级结构
CJSubviews = function(view) {
if (![view isKindOfClass:[UIView class]]) throw new Error(invalidParamStr);
return view.recursiveDescription().toString();
};
// 判断是否为字符串 "str" @"str"
CJIsString = function(str) {
return typeof str == 'string' || str instanceof String;
};
// 判断是否为数组 []、@[]
CJIsArray = function(arr) {
return arr instanceof Array;
};
// 判断num是否为数字
CJIsNumber = function(num) {
return typeof num == 'number' || num instanceof Number;
};
var _CJClass = function(className) {
if (!className) throw new Error(missingParamStr);
if (CJIsString(className)) {
return NSClassFromString(className);
}
if (!className) throw new Error(invalidParamStr);
// 对象或者类
return className.class();
};
// 打印所有的子类
CJSubclasses = function(className, reg) {
className = _CJClass(className);
return [c for each (c in ObjectiveC.classes)
if (c != className
&& class_getSuperclass(c)
&& [c isSubclassOfClass:className]
&& (!reg || reg.test(c)))
];
};
// 打印所有的方法
var _CJGetMethods = function(className, reg, clazz) {
className = _CJClass(className);
var count = new new Type('I');
var classObj = clazz ? className.constructor : className;
var methodList = class_copyMethodList(classObj, count);
var methodsArray = [];
var methodNamesArray = [];
for(var i = 0; i < *count; i++) {
var method = methodList[i];
var selector = method_getName(method);
var name = sel_getName(selector);
if (reg && !reg.test(name)) continue;
methodsArray.push({
selector : selector,
type : method_getTypeEncoding(method)
});
methodNamesArray.push(name);
}
free(methodList);
return [methodsArray, methodNamesArray];
};
var _CJMethods = function(className, reg, clazz) {
return _CJGetMethods(className, reg, clazz)[0];
};
// 打印所有的方法名字
var _CJMethodNames = function(className, reg, clazz) {
return _CJGetMethods(className, reg, clazz)[1];
};
// 打印所有的对象方法
CJInstanceMethods = function(className, reg) {
return _CJMethods(className, reg);
};
// 打印所有的对象方法名字
CJInstanceMethodNames = function(className, reg) {
return _CJMethodNames(className, reg);
};
// 打印所有的类方法
CJClassMethods = function(className, reg) {
return _CJMethods(className, reg, true);
};
// 打印所有的类方法名字
CJClassMethodNames = function(className, reg) {
return _CJMethodNames(className, reg, true);
};
// 打印所有的成员变量
CJIvars = function(obj, reg){
if (!obj) throw new Error(missingParamStr);
var x = {};
for(var i in *obj) {
try {
var value = (*obj)[i];
if (reg && !reg.test(i) && !reg.test(value)) continue;
x[i] = value;
} catch(e){}
}
return x;
};
// 打印所有的成员变量名字
CJIvarNames = function(obj, reg) {
if (!obj) throw new Error(missingParamStr);
var array = [];
for(var name in *obj) {
if (reg && !reg.test(name)) continue;
array.push(name);
}
return array;
};
})(exports);