我必须创建一个插件来捕获我的iOS应用程序的Cordova webView中发生的事件,并在应用程序的本机部分触发操作,反之亦然。
我已关注this tutorial并且效果很好。
当我尝试将其改编为另一个应用程序时(我希望它比教程更通用),它可以从webView到本机部分,但不是其他方式。
我只是想点击导航栏上的按钮来更改我的webView的背景颜色。目前,似乎插件的javascript代码没有收到该事件,因为只显示了iOS日志。
我的所有代码都在XCode中,因此我无法从Web部件中看到任何警告/错误。
以下是该插件的iOS部分:
@interface HybridBridge()
@property (nonatomic, retain) NSString *listenerCallbackId;
@end
@implementation HybridBridge
-(void)bindAction:(CDVInvokedUrlCommand*) command{
self.listenerCallbackId = command.callbackId;
CDVPluginResult *pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
[pluginResult setKeepCallbackAsBool:true];
[self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
}
-(void)reportEvent:(NSDictionary*)eventData{
CDVPluginResult *pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsDictionary:eventData];
[pluginResult setKeepCallbackAsBool:true];
[self.commandDelegate sendPluginResult:pluginResult callbackId:self.listenerCallbackId];
}
这是插件的javascript部分:
var HybridBridge = (function() {
var PLUGIN_NAME = "HybridBridge";
var ACTION_BIND_LISTENER = "bindAction";
this.bindListener = function(listener) {
cordova.exec(listener, listener, PLUGIN_NAME, ACTION_BIND_LISTENER, []);
};
return this;
}());
这是javascript事件监听器:
var NativeEventsListener = (function() {
this.onReceivedEvent = function(eventData) {
var eventHandler = function(){};
switch (eventData.eventType){
case "colorButtonClicked":
eventHandler = colorButtonClickEvent;
break;
default:
}
eventHandler(eventData);
};
function colorButtonClickEvent(eventData){
changeBackgroundColor(eventData.color);
}
function changeBackground(color) {
document.body.style.background = color;
}
return this;
}());
这是main.js文件,其中将事件侦听器绑定到插件:
function wlCommonInit(){
HybridBridge.bindListener(NativeEventsListener.onReceivedEvent);
}
function wlEnvInit(){
wlCommonInit();
}
最后这是Objective-C中的插件调用:
- (IBAction)changeWebPageColor {
redColor = !redColor;
NSString *color = redColor ? @"red" : @"white";
HybridBridge *bridge = [self.pluginObjects objectForKey:@"HybridBridge"];
NSDictionary *eventData = [NSDictionary dictionaryWithObjectsAndKeys:
@"colorButtonClicked", @"eventType",
color, @"color",
nil];
[bridge reportEvent:eventData];
}
感谢您的帮助!
答案 0 :(得分:2)
尝试在您的项目中实施此示例。
确保您已在config.xml中定义插件
<feature name="CustomPlugin">
<param name="ios-package" value="CustomPlugin" />
</feature>
使用Objective-C代码实现插件
CustomPlugin.h
#import <Foundation/Foundation.h>
#import <Cordova/CDV.h>
@interface CustomPlugin : CDVPlugin
- (void)sayHello:(CDVInvokedUrlCommand*)command;
@end
CustomPlugin.m
#import "CustomPlugin.h"
@implementation CustomPlugin
- (void)sayHello:(CDVInvokedUrlCommand*)command{
NSString *responseString =
[NSString stringWithFormat:@"Hello World, %@", [command.arguments objectAtIndex:0]];
CDVPluginResult *pluginResult =
[CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString:responseString];
[self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
}
@end
从JavaScript调用插件
function initial(){
var name = $("#NameInput").val();
cordova.exec(sayHelloSuccess, sayHelloFailure, "CustomPlugin", "sayHello", [name]);
}
function sayHelloSuccess(data){
alert("OK: " + data);
}
function sayHelloFailure(data){
alert("FAIL: " + data);
}