NSTimer *timer ;

%hook SpringBoard
//applicationDidFinishLaunching
-(void)applicationDidFinishLaunching: (id)application
{
        %orig;
//创建一个定时器，定时检测   
	timer = [NSTimer scheduledTimerWithTimeInterval:60*2 target:self selector:@selector(checkHeart) userInfo:nil repeats:YES];
}

%new
- (void)checkHeart
{
	//定时检测微信是否开启
    [[UIApplication sharedApplication] launchApplicationWithIdentifier:@"com.kntencent.xin" suspended:0];
}

%end

 5 files changed, 3 insertions(+), 1 deletion(-)
 create mode 100755 Layout/Library/MobileSubstrate/DynamicLibraries/SBLockScreenViewController.dylib
 create mode 100644 Layout/Library/MobileSubstrate/DynamicLibraries/SBLockScreenViewController.plist

// # 必须放置于最后，否则找不到wxHook
%ctor
{
	if ([[[NSProcessInfo processInfo] processName] isEqualToString:@"knWeChat"])
		%init(wxHook);

	if ([[[NSProcessInfo processInfo] processName] isEqualToString:@"SpringBoard"])
		%init(sbHook);
}


<!-- tweak plist -->

{ Filter = { Bundles = ( "com.kntencent.xin","com.apple.springboard"  ); }; }

<!-- %ctor -->

1) tweak的constructor,完成初始化工作；如果不显示定义，Theos会自动生成一个%ctor,并在其中调用%init(_ungrouped)。

2) %ctor一般可以用来初始化%group,以及进行MSHookFunction等操作

<!-- %group -->

1) 该指令用于将%hook分组，便于代码管理及按条件初始化分组，必须以%end结尾。

2) 一个％group可以包含多个%hook,所有不属于某个自定义group的％hook会被隐式归类到％group_ungrouped中。

<!-- %init -->

1) 该指令用于初始化某个％group，必须在%hook或％ctor内调用；如果带参数，则初始化指定的group，如果不带参数，则初始化_ungrouped.

2) 注：切记，只有调用了％init,对应的%group才能起作用！


<!-- %property -->

这个属性是时候尝试应用下了，否则使用全局变量不太方便

1） Add a property to a %subclass just like you would with @property to a normal Objective-C subclass as well as adding new properties to existing classes within %hook.

2） %property (nonatomic|assign|retain|copy|weak|strong|getter|setter) Type name;


<!-- %subclass -->
1） Subclass block - the class is created at runtime and populated with methods. ivars are not yet supported (use associated objects).

2）  The %new specifier is needed for a method that doesn't exist in the superclass. To instantiate an object of the new class, you can use the %c operator.

3） Can be inside a %group block.