Mac下的按键精灵实现

Windows上很久以前就有按键精灵，Mac上也可以实现类似功能，以下一个小demo演示了如何去实现鼠标和键盘操作的自动化。

一、新建Mac应用，代码如下：

- (void)viewDidLoad {
    [super viewDidLoad];

    // Do any additional setup after loading the view.
    
    NSButton* button = [[NSButton alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
    button.target = self;
    button.action = @selector(buttonClick);
    [self.view addSubview:button];
    [button mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.left.mas_equalTo(100);
        make.right.bottom.mas_equalTo(-100);
    }];
}

- (void)buttonClick
{
    CGPoint pt = CGPointMake(216, 80);
    
    PostMouseEvent(kCGMouseButtonLeft, kCGEventLeftMouseDown, pt);
    PostMouseEvent(kCGMouseButtonLeft, kCGEventLeftMouseUp, pt);
    
    sleep(2);
    
    [self writeString:@"Hello" withFlags:0];
}

void PostMouseEvent(CGMouseButton button, CGEventType type, const CGPoint point)
{
    CGEventRef theEvent = CGEventCreateMouseEvent(NULL, type, point, button);
    CGEventSetType(theEvent, type);
    CGEventPost(kCGHIDEventTap, theEvent);
    CFRelease(theEvent);
}

-(void)writeString:(NSString *)valueToSet withFlags:(int)flags
{
    UniChar buffer;
    CGEventRef keyEventDown = CGEventCreateKeyboardEvent(NULL, 1, true);
    CGEventRef keyEventUp = CGEventCreateKeyboardEvent(NULL, 1, false);
    CGEventSetFlags(keyEventDown,0);
    CGEventSetFlags(keyEventUp,0);
    for (int i = 0; i < [valueToSet length]; i++) {
        [valueToSet getCharacters:&buffer range:NSMakeRange(i, 1)];
        CGEventKeyboardSetUnicodeString(keyEventDown, 1, &buffer);
        CGEventSetFlags(keyEventDown,flags);
        CGEventPost(kCGSessionEventTap, keyEventDown);
        CGEventKeyboardSetUnicodeString(keyEventUp, 1, &buffer);
        CGEventSetFlags(keyEventUp,flags);
        CGEventPost(kCGSessionEventTap, keyEventUp);
        
    }
    CFRelease(keyEventUp);
    CFRelease(keyEventDown);
}

二、通过AppleScript实现：

activate application "Finder"
tell application "System Events"
tell process "Finder"
click at {15, 2}
end tell
end tell