uniapp 混合开发 js调用oc代码和oc调用js

落日映苍穹つ 2022-09-10 08:11 278阅读 0赞

js调用oc类方法

//LoginViewController是oc类 txt是要传的参数 
    plus.ios.importClass("LoginViewController").login("txt“);

js调用oc对象方法

//objectToJsonImage是oc对象方法 massageArray返回值 
    var Massage = plus.ios.importClass("LoginViewController");  
    var massage = new Massage();  
    var massageArray = massage.objectToJsonImage();

oc 调用js

(NSMutableArray*)searchViews:(NSArray*)views{   
    
    NSMutableArray *frames = [NSMutableArray array];  
    //遍历view 
    for (UIView *temp in views) {   
    
        if ([temp isMemberOfClass:[PDRCoreAppFrame class]]) {   
    
            [frames addObject:temp];  
        }  
        if ([temp subviews]) {   
    
            NSMutableArray *tempArray = [self searchViews:[temp subviews]];  
    
            for (UIView *tempView in tempArray) {   
    
                if ([tempView isMemberOfClass:[PDRCoreAppFrame class]]) {   
    
                    [frames addObject:tempView];  
                }  
            }  
        }  
    }  
    //返回值 frames 为从该层级中找到的 PDRCoreAppFrame 
    return frames;  
    }  
    (void)evaluatingJavaScriptFromString:(NSString*)string{   
    
    UIWindow *window = [[UIApplication sharedApplication] keyWindow];  
    
    NSArray *views = [[[window rootViewController] view] subviews];  
    
    NSArray *frames = [self searchViews:views];  
    
    for (PDRCoreAppFrame *appFrame in frames) {   
        /*这里需要注意执行异步任务，在block内需要回到主线程来进行JS event的调用，但是如果还是使用 dispath_get_main_queue的话会造成调用JS有alert的话线程会死锁,具体原因也不是特别清晰， 在stackOverFlow中看到应该是JS和OC不同alert线程的原因 */  
        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{   
            [appFrame performSelectorOnMainThread:@selector(stringByEvaluatingJavaScriptFromString:) withObject:string waitUntilDone:NO];  
    
        });  
    }  
    }  
    (void)fireEvent:(NSString*)event args:(NSString *)args{   
    NSString *evalStr = nil;  
    
    if (args) {   
        //创建js事件 
        evalStr = [NSString stringWithFormat:@"\  
                   var pathEvent = document.createEvent('HTMLEvents');\  
                   pathEvent.initEvent('%@', true, true);\  
                   pathEvent.eventType = 'message';\  
                   pathEvent.arguments = '%@';\  
                   document.dispatchEvent(pathEvent);",event,args];  
    }else{   
        evalStr = [NSString stringWithFormat:@"\  
                   var pathEvent = document.createEvent('HTMLEvents');\  
                   pathEvent.initEvent('%@', true, true);\  
                   pathEvent.eventType = 'message';\  
                   document.dispatchEvent(pathEvent);",event];  
    }  
    //return evalStr; 
    //调用上述方法 
    [self evaluatingJavaScriptFromString:evalStr];  
    }  
    //通过此代码调用 
    [self fireEvent:@"event_name" args:@"json"];  
    //js端代码 
    document.addEventListener('event_name', function(e) {   
        alert(e.arguments);  
    }, false);