Android facebook发送消息 [英] Android facebook send a message

问题描述

我必须通过Android应用程序向Facebook的朋友发送消息。我已经完成了所有功能，并尝试了一个代码来发送消息给Facebook的朋友。但是显示一个错误，对话框不可用于此设备

I have to send a message to a facebook friend via an android app.I have done all functions and tried a code to send message to facebook friend.But it showing an error that the dialog is not available for this device.

以下是我向Facebook的朋友发送消息的代码：

Here is my code to send a message to facebook friend:

Facebook facebook = new Facebook(APP_ID);
        Bundle params = new Bundle();
        params.putString("to", Constant.facebookIdBuffer.toString());
        params.putString("name", "Goal Machine");//title
        params.putString("link", Constant.shortAppUrlForAndroid+"\n"+Constant.shortAppUrlForIphone);//message
        facebook.dialog(_activity, "send", params, new DialogListener() {//apprequests
            @Override
            public void onComplete(Bundle values) {
                Constant.facebookIdBuffer=null;
                //postToWall("@"+Constant.facebookIdBuffer.toString()+sendInvite);
            }

            @Override
            public void onFacebookError(FacebookError error) {
                Constant.showAlertDialog("Error", "Can't send ally request!", _activity.getParent(), false);
                Constant.facebookIdBuffer=null;
            }

            @Override
            public void onError(DialogError e) {
                Constant.showAlertDialog("Error", "Can't send ally request!", _activity.getParent(), false);
                Constant.facebookIdBuffer=null;
            }

以下是显示错误的屏幕短信：

Here is the screen short showing error:

请给我一个发送消息的方式来发送一个链接到Facebook的朋友。

Please suggest me a way to send a message with links to facebook friend.

推荐答案

你可以使用MessengerUtils从最新的Facebook Android sdk发送带有附件的消息。

You can use MessengerUtils from Latest facebook Android sdk to send the message with attachments.

您可以使用以下MIME类型发送附件：

You can send attachment with following mime types:

发送图像的示例代码如下

Sample code to send image is like below

String mimeType = "image/jpeg";

// contentUri points to the content being shared to Messenger
ShareToMessengerParams shareToMessengerParams =
        ShareToMessengerParams.newBuilder(contentUri, mimeType)
                .build();

// Sharing from an Activity
MessengerUtils.shareToMessenger(
       this,
       REQUEST_CODE_SHARE_TO_MESSENGER,
       shareToMessengerParams);

更多文档位于 https://developers.facebook.com/docs/ messenger / android

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