即使我遇到问题,我也想创建一个聊天客户端。当我第一次打开应用程序并打开聊天(ListView)时,它可以很好地工作。
04-17 07:19:51.681 10020-10081/com.example.example E/SENDER ANSWER:﹕ yes
04-17 07:19:55.494 10020-10081/com.example.example E/SENDER ANSWER:﹕ hi
但是当我离开后面的聊天时,我想回到窗口它没有显示收到的消息但是显示了地雷
我发送“秒”之后,其他用户发送了:
04-17 07:21:17.246 10020-10081/com.example.example E/SENDER ANSWER:﹕ second time and doesnt work
并且它没有显示在列表视图上。 这是我的代码:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
chatmanager.addChatListener(new ChatManagerListener() {
@Override
public void chatCreated(Chat chat, boolean createdLocally) {
if (!createdLocally) {
chat.addMessageListener(new ChatMessageListener() {
@Override
public void processMessage(Chat chat, Message message) {
Log.e("SENDER ANSWER:", message.getBody());
sender_messages = message.getBody();
runOnUiThread(new Runnable() {
@Override
public void run() {
populateConversation(sender_messages, true);
populateConversationView();
}
});
}
});
}
}
});
}
也许它不一定是聊天监听器,因为它正在接收消息,但只是没有显示。我将不胜感激任何帮助
public void populateConversationView(){
final ArrayAdapter<Message_Provider> adapter = new MyListAdapter();
messagesList.setTranscriptMode(AbsListView.TRANSCRIPT_MODE_ALWAYS_SCROLL);
messagesList.setAdapter(adapter);
adapter.registerDataSetObserver(new DataSetObserver() {
@Override
public void onChanged() {
super.onChanged();
messagesList.setSelection(adapter.getCount());
}
});
private class MyListAdapter extends ArrayAdapter<Message_Provider> { // Done
public MyListAdapter(){
super(getApplicationContext(), R.layout.chat_conversation, messages);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View itemView = convertView;
if(itemView == null){
itemView = getLayoutInflater().inflate(R.layout.source_message, parent, false);
}
Message_Provider currentContact = messages.get(position);
TextView myMessage = (TextView) itemView.findViewById(R.id.senderMessege);
myMessage.setText(currentContact.getMessage());
LinearLayout.LayoutParams parameter = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
if (currentContact.getSender()){
parameter.gravity = Gravity.LEFT;
myMessage.setBackgroundResource(R.drawable.sender_messages);
}else {
parameter.gravity = Gravity.RIGHT;
myMessage.setBackgroundResource(R.drawable.my_message);
}
myMessage.setLayoutParams(parameter);
return itemView;
}
我正在测试整天,就像当我回去并且我打开一个新的活动时,聊天监听器会增加预览而不是新的预览,我认为这是因为runOnUiThread。
答案 0 :(得分:2)
固定这个,天啊!经过几个小时的调试XD后,我需要关闭监听器中的聊天
runOnUiThread(new Runnable() {
@Override
public void run() {
populateConversation(sender_messages, true);
populateConversationView();
chat.close(); // HERE
}
});
我发布这个是因为有像我这样的初学者也可能会遇到这个问题。