3***@qq.com

pragma mark - 封装成js代码+执行回调 JSCommand.h

typedef NS_ENUM(NSUInteger, JSCommandExecuteStatus) {

JSCommandExecuteStatusSucess,

JSCommandExecuteStatusFailed

};

static NSString *EvaluateJSNotification = @"com.kmvc.evaluatejs";

@interface JSCommand : NSObject

@property (nonatomic, strong) NSString *code;

@property (nonatomic, copy) void (^callback)(JSCommandExecuteStatus state);

• (instancetype)initWithCode:(NSString *)code callback:(void (^)(JSCommandExecuteStatus state))callback;
  
  @90837

import "JSCommand.h"

@implementation JSCommand

• (instancetype)initWithCode:(NSString *)code callback:(void (^)(JSCommandExecuteStatus state))callback {
  
  self = [super init];
  
  if (self) {
  
  self.code = code ? code:@"";
  
  self.callback = callback;
  
  }
  
  return self;
  
  }
  
  @90837

在H5的ViewController里面实现

pragma mark - 调用js代码

• 
  

  (void)evaluateJSCode:(JSCommand )command {
  
  PDRCore core = [PDRCore Instance];
  
  PDRCoreAppFrame frame = core.appManager.activeApp.mainFrame;
  
  [frame evaluateJavaScript:command.code completionHandler:^(id obj, NSError err) {
  
  NSLog(@"----- js info ----- %@", obj);
  
  if (err) {
  
  UIAlertController alert = [UIAlertController alertControllerWithTitle:@"系统错误" message:[NSString stringWithFormat:@"%@", err] preferredStyle:UIAlertControllerStyleAlert];
  
  UIAlertAction okAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action){
  
  [alert dismissViewControllerAnimated:true completion:nil];
  
  if (command.callback) {
  
  command.callback(JSCommandExecuteStatusFailed);
  
  }
  
  }];
  
  [alert addAction:okAction];
  
  [self presentViewController:alert animated:true completion:nil];
  
  return;
  
  }
  
  if (command.callback) {
  
  command.callback(JSCommandExecuteStatusSucess);
  
  }
  
  }];
  
  }

  
  


• 
  

  (void)needExecuteJsCode:(NSNotification )notification {
  
  JSCommand command = notification.object;
  
  if (command && [command isKindOfClass:[JSCommand class]]) {
  
  [self evaluateJSCode:command];
  
  }
  
  }

  
  

• (void)loadView
  
  {
  
  。。。。。。。。
  
  // 其他代码
  
  selector:@selector(needExecuteJsCode:) name:EvaluateJSNotification object:nil];
  
  }

使用方法：

NSString code = @"mui.openWindow({ url: 'hello.html', id: 'hello', extra: {'info':'ok'}});";

JSCommand command = [[JSCommand alloc] initWithCode:code callback:^(JSCommandExecuteStatus state) {

switch (state) {

case JSCommandExecuteStatusSucess:

                break;  

            case JSCommandExecuteStatusFailed:  



                break;  

            default:  

                break;  

        }  

        [self getBack];  

    }];  

[[NSNotificationCenter defaultCenter] postNotificationName:EvaluateJSNotification object:command];

2017-10-11 16:02

shimeifang

请问我用的是PDRCoreRunModeNormal方式集成，可以获取 PDRCoreAppFrame 对象，使用stringByEvaluatingJavaScriptFromString原生调JS吗，试了很多方法还是不行，不知道什么原因，大神能指导我一下吗

2017-10-12 10:02