Android Phonegap 3.4 : Notify javascript when an AsyncTask is finished

Question

我在 Android Phonegap: Notify javascript when an AsyncTask is finished 上遇到了与 Peacemoon 相同的问题

好吧，这适用于较旧的 PhoneGap 版本，但是......我的问题:这不适用于较新的 PhoneGap 版本，例如 PhoneGap 3.4。

插件类现在继承自CordovaPlugin，execute方法的返回类型现在是boolean，参数是CallbackContext而不是int callbackId等等。现在如何实现异步任务？

我的方法:

private CallbackContext myCallbackContext;

@Override
public boolean execute(String action, JSONArray args, 
    final CallbackContext callbackId)
{
    this.myCallbackContext = callbackId;
    if (action.equals("test"))
    {
        Intent intent = new Intent("com.companyname.name.TEST");
        this.cordova.startActivityForResult((CordovaPlugin) this, intent, 0);

         // create an empty result, because the asynchronous call can take long
        PluginResult pluginResult = new PluginResult(PluginResult.Status.NO_RESULT);
        pluginResult.setKeepCallback(true);
        this.myCallbackContext.sendPluginResult(pluginResult);

        this.myCallbackContext.success;

        return true;
    }

public void onActivityResult(int requestCode, int resultCode, Intent intent)
{
    if (requestCode == 0)
    {
        if (resultCode == Activity.RESULT_OK)
        {
            Bundle korb = intent.getExtras();
            String osVersion = korb.getString("osVersion");


            JSONObject obj = new JSONObject();
             try
             {
                 obj.put("osVersion", osVersion);
             } catch(JSONException e)
             {
                 // Log
             }
PluginResult result = new PluginResult(PluginResult.Status.OK, obj);
             result.setKeepCallback(false);
             this.myCallbackContext.sendPluginResult(result);

             this.myCallbackContext.success(obj);
}

我对 JavaScript 的回归是不确定的。但它适用于我的旧版本和较旧的 PhoneGap 版本，如 1 .它如何在较新的 PhoneGap 版本上运行？

Answer 1

这是我的 phonegap 3.x 插件类的样子:

    public CallbackContext callbackContext;

    @Override
    public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
        this.callbackContext = callbackContext;

        if (action.equals("anAction")) {
            Intent intent = new Intent(this.getActivity(),com.companyname.name.TEST.class);
            if (this.cordova != null) {
                this.cordova.startActivityForResult(this, intent, 0);
                return true;
            }
        }
        return false;
    }

public void onActivityResult(int requestCode, int resultCode, Intent intent) {
    switch (requestCode) {
    case 0:
        //retour de la version utilisant le sample de imense alpr
         if(resultCode == android.app.Activity.RESULT_OK){ //0:ok      
             String result=intent.getStringExtra("result"); 
             this.callbackContext.success(result);
         }
         else{
             String message=intent.getStringExtra("result");
             this.callbackContext.error(message);
         }

        break;
    default:
        break;
    }
}