我正在为android编写一个应用程序，它与设备进行通信并返回到磨损状态。这是onclick on wear的代码。
message1Button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Wearable.MessageApi.sendMessage(apiClient, remoteNodeId, MESSAGE1_PATH, null).setResultCallback(new ResultCallback<MessageApi.SendMessageResult>() {
@Override
public void onResult(MessageApi.SendMessageResult sendMessageResult) {
Intent intent = new Intent(getApplicationContext(), ConfirmationActivity.class);
if (sendMessageResult.getStatus().isSuccess()) {
intent.putExtra(ConfirmationActivity.EXTRA_ANIMATION_TYPE, ConfirmationActivity.SUCCESS_ANIMATION);
intent.putExtra(ConfirmationActivity.EXTRA_MESSAGE, getString(R.string.message1_sent));
} else {
intent.putExtra(ConfirmationActivity.EXTRA_ANIMATION_TYPE, ConfirmationActivity.FAILURE_ANIMATION);
intent.putExtra(ConfirmationActivity.EXTRA_MESSAGE, getString(R.string.error_message1));
}
startActivity(intent);
}
});
以下是手持设备上收到的on代码。
public void onMessageReceived(MessageEvent messageEvent) {
if (messageEvent.getPath().equals(MESSAGE1_PATH)) {
handler.post(new Runnable() {
@Override
public void run() {
receivedMessagesEditText.append("\n" + getString(R.string.received_message1));
String serverURL = "A Working URL";
try {
ArrayList<String> list=new ArrayList<String>();
list.add(0,serverURL);
list.add(1,"SELECT DISTINCT ACCOUNTNO FROM CUSTOMR_WISE_WALLET_POINTS ORDER BY ACCOUNTNO");
jsonContent= new LongOperation().execute(list).get();
} catch (InterruptedException e) {
Log.e("Error",e.getMessage());
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
Log.d("Value of json",jsonContent);
}
});
Wearable.MessageApi.sendMessage(apiClient, remoteNodeId, MESSAGE4_PATH, jsonContent.getBytes()).setResultCallback(new ResultCallback<MessageApi.SendMessageResult>() {
@Override
public void onResult(MessageApi.SendMessageResult sendMessageResult) {
if (sendMessageResult.getStatus().isSuccess())
Toast.makeText(getApplication(), "Message 4 sent", Toast.LENGTH_SHORT).show();
else
Toast.makeText(getApplication(), getString(R.string.error_message1), Toast.LENGTH_SHORT).show();
}
});
} else if (messageEvent.getPath().equals(MESSAGE2_PATH)) {
handler.post(new Runnable() {
@Override
public void run() {
receivedMessagesEditText.append("\n" + getString(R.string.received_message2));
}
});
}
}
手持设备显示＆＃34;消息4已发送＆＃34;敬酒。但是从来没有触发过磨损的消息监听器。代码是。
messageListener = new MessageApi.MessageListener() {
@Override
public void onMessageReceived(final MessageEvent messageEvent) {
Log.d("Inside","On message recieved");
if (messageEvent.getPath().equals(MESSAGE1_PATH)) {
handler.post(new Runnable() {
@Override
public void run() {
receivedMessagesEditText.append("\n" + getString(R.string.received_message1));
/*COde to send another request*/
Wearable.MessageApi.sendMessage(apiClient, remoteNodeId, MESSAGE3_PATH, "Hello".getBytes()).setResultCallback(new ResultCallback<MessageApi.SendMessageResult>() {
@Override
public void onResult(MessageApi.SendMessageResult sendMessageResult) {
Intent intent = new Intent(getApplicationContext(), ConfirmationActivity.class);
if (sendMessageResult.getStatus().isSuccess()) {
intent.putExtra(ConfirmationActivity.EXTRA_ANIMATION_TYPE, ConfirmationActivity.SUCCESS_ANIMATION);
intent.putExtra(ConfirmationActivity.EXTRA_MESSAGE, "Message 3 sent");
} else {
intent.putExtra(ConfirmationActivity.EXTRA_ANIMATION_TYPE, ConfirmationActivity.FAILURE_ANIMATION);
intent.putExtra(ConfirmationActivity.EXTRA_MESSAGE, getString(R.string.error_message2));
}
startActivity(intent);
}
});
}
});
} else if (messageEvent.getPath().equals(MESSAGE2_PATH)) {
handler.post(new Runnable() {
@Override
public void run() {
receivedMessagesEditText.append("\n" + getString(R.string.received_message2));
}
});
}
else if(messageEvent.getPath().equals(MESSAGE4_PATH)){
handler.post(new Runnable() {
@Override
public void run() {
receivedMessagesEditText.append("\n" + getString(R.string.received_message1));
/*COde to send another request*/
// String jsonInString=new String(messageEvent.getData());
Log.d("Inside Message 4","Inside");
String[] items = new String[]{"Select User", "2", "three"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_spinner_dropdown_item, items);
dropdown.setAdapter(adapter);
message2Button.setEnabled(true);
}
});
}
}
};
总结一下，我可以通过磨损发送消息并在handhled上发送触发消息。消息已成功从手持设备发送，但是当从messagelistener范围内调用时，不会在磨损时触发接收到的消息。我检查了应用程序ID，它们是相同的。我也测试了通过触摸来自掌上电脑的按钮2收到的消息。它工作正常。提前致谢
答案 0 :(得分：0)
MessageApi不保证即使返回成功的结果代码也会收到消息。查看文档here。
注意：成功的结果代码不保证传递消息。如果您的应用需要数据可靠性，请使用DataItem对象或ChannelApi类在设备之间发送数据。