来自Cordova活动的回调

Question

我有一个名为'Signature'的活动,我从CordovaPlugin调用它;

Plugin.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");
             }
     }

Signature.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"立即调用它自己.我无法通过finishWithResult从Activity回调.任何建议.谢谢

Answer 1

首先,有一些代码丢失(执行 -method的return语句),你必须告诉android/cordova-plugin等到结果发送回你的webview-app使用NO_RESULT和PluginResult的setKeepCallback否则cordova/android希望在执行 -method完成后立即获得结果:

Plugin.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());
}

这里有一个例子(对于你的插件类)和这里(对于你的签名类).

我的一个:这里和这里.