java - 从 Cordova 上的 Activity 回调

Question

我有一个名为“签名”的 Activity ，我从 CordovaPlugin 调用它；

插件.java

public boolean execute(String action, JSONArray args,
            CallbackContext callbackContext) throws JSONException
    {
    Intent i = new Intent(context, Signature.class);
    i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    cordova.startActivityForResult(this,i,90);
}
    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
        Log.d(TAG, "activity result in plugin: requestCode(" + requestCode + "), resultCode(" + resultCode + ")");
        if(requestCode == 90) {
             if (resultCode == this.cordova.getActivity().RESULT_OK) {
                 Bundle res = intent.getExtras();
                 String result = res.getString("results");
                 Log.d("FIRST", "result:"+result);
                 this.callbackContext
                 .success(result.toString());
             } else {
                 this.callbackContext.error("Error");
             }
     }

签名.java

private void finishWithResult(String result,int status)
{
    Bundle conData = new Bundle();
    conData.putString("results", result);
    Intent intent = new Intent();
    intent.putExtras(conData);
    setResult(status, intent);
    finish();
}

但是，当我调用“cordova.startActivityForResult”函数时，“onActivityResult”会立即自行调用它。我无法通过 finishWithResult 从 Activity 回调。任何建议。谢谢

Answer 1

首先，缺少一些代码(执行-方法的返回语句)，您必须告诉 android/cordova-plugin 等到有结果发送回您的 webview-通过使用 PluginResult 的 NO_RESULT 和 setKeepCallback 应用，否则 cordova/android 期望在执行时立即得到结果-方法已完成:

插件.java:

public boolean execute(String action, JSONArray args,
            CallbackContext callbackContext) throws JSONException
    {

    PluginResult r = new PluginResult(PluginResult.Status.NO_RESULT);
    r.setKeepCallback(true);
    callbackContext.sendPluginResult(r);

    Intent i = new Intent(context, Signature.class);
    i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    cordova.startActivityForResult(this,i,90);

    return true;

}

public void onActivityResult(int requestCode, int resultCode, Intent intent){
    // here is your former code
    ...
    ...
    // at last call sendPluginResult 
    this.callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, result.toString()));

    // when there is no direct result form your execute-method use sendPluginResult because most plugins I saw and made recently (Reminder) prefer sendPluginResult to success/error
    // this.callbackContext.success(result.toString());
}

举个例子here (对于您的插件类)和 here (对于你的签名类)。

还有我的一个:here和 here .