Question

我开发了自定义Cordova plugin。我可以从JS成功调用它，但我还需要从另一个类（本机代码）调用它。我该怎么办？

如何调用自定义插件的showImageURL方法？

// MyCustomPlugin.m

@implementation MyCustomPlugin

    - (void) showImageURL:(CDVInvokedUrlCommand*)command{

        if (_fullScreenImageView)
            return;

        NSString *fullPath = [[command.arguments objectAtIndex:0] valueForKey:@"url"];

        UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"www/application/app/%@", fullPath]];
        _fullScreenImageView = [[UIImageView alloc] initWithImage:image];
        _fullScreenImageView.frame=[[UIScreen mainScreen] bounds];

        UIViewController *controller = [UIApplication sharedApplication].keyWindow.rootViewController;

        [controller.view addSubview:_fullScreenImageView];
        [controller.view bringSubviewToFront:_fullScreenImageView];

    }

// AnotherClass.m

@implementation AnotherClass


- (void) foo {

    MyCustomPlugin *splashScreen = [[MyCustomPlugin alloc] init];
    [splashScreen showImageURL:]; // <<- what params should I pass to `showImageURL`?

}

P.S。这就是我从JS中调用它的方式：window.FullScreenImage.showImageURL('img/bar.png');

Answer 1

最好的方法是抽象出Cordova接口，以便将其称为简单的Objective-C函数：

@implementation MyCustomPlugin

    - (void) showImageURL:(CDVInvokedUrlCommand*)command{
        NSString *fullPath = [[command.arguments objectAtIndex:0] valueForKey:@"url"];
        [self _showImageURL:fullPath];
    }

    - (void) _showImageURL:(NSString*)fullPath{

        if (_fullScreenImageView)
            return;

        UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"www/application/app/%@", fullPath]];
        _fullScreenImageView = [[UIImageView alloc] initWithImage:image];
        _fullScreenImageView.frame=[[UIScreen mainScreen] bounds];

        UIViewController *controller = [UIApplication sharedApplication].keyWindow.rootViewController;

        [controller.view addSubview:_fullScreenImageView];
        [controller.view bringSubviewToFront:_fullScreenImageView];

    }


@implementation AnotherClass

- (void) foo {

    MyCustomPlugin *splashScreen = [[MyCustomPlugin alloc] init];
    [splashScreen _showImageURL:@"path/to/some/image.png"];

}

Cordova插件：从另一个类调用自定义插件的方法（objective-c）

1 个答案: