将自定义参数传递给 Phonegap 插件

Question

我编写了一个 Phonegap 插件，以便将我的 Phonegap 应用程序与本机 SDK 库集成。为了将一些设备注册信息传递给本机库，我使用 Objective-C 类别在 didFinishLaunchingWithOptions 之后插入我自己的处理程序，与 Phonegap Push Plugin 的方式几乎相同。因此，我有如下内容：

@implementation AppDelegate (MyLib)

// Using method swizzling to plug our own init method  which allows us to
// add our own listener for the didFinishLaunching event without overwriting
// the one already defined by Phonegap.
+ (void)load
{
    Method original, swizzled;

    original = class_getInstanceMethod(self, @selector(init));
    swizzled = class_getInstanceMethod(self, @selector(swizzled_init));
    method_exchangeImplementations(original, swizzled);
}

- (AppDelegate *)swizzled_init
{
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(launchHandler:)
                                                 name:@"UIApplicationDidFinishLaunchingNotification" object:nil];

    // This actually calls the original init method over in AppDelegate.
    return [self swizzled_init];
}

// This code will be called immediately after application:didFinishLaunchingWithOptions:.
- (void)launchHandler:(NSNotification *)notification
{
    NSString* apiKey = @"xxxxx";
    // Do some initialisation and register the device using the apiKey
}

@end

apiKey 特定于我的应用程序，现在它在 AppDelegate+MyLib.m 中定义，如上面的代码所示。我的问题是，有没有办法让我的 Phonegap 应用程序在导入插件时自定义它？它可以在我的应用程序的 config.xml 中定义（或者在任何其他地方，如果有区别的话）并以某种方式作为参数传递给插件的 AppDelegate 吗？

Answer 1

首先，您不需要使用 swizzling，只需阅读如何从 CDVPlugin 子类获取 UIApplicationDidFinishLaunchingNotification

现在您可以在 config.xml

上使用首选项标签

 <preference name="apiKey" value="yourApiKeyHere" />

然后，您在代码中（在 CDVPlugin 子类上）得到 "apiKey" 这样做：

NSString* apiKey = [self.commandDelegate.settings objectForKey:[@"apiKey" lowercaseString]];

将自定义参数传递给 Phonegap 插件

Passing custom parameters to Phonegap plugin

ios

phonegap-plugins

cordova

cordova-plugins