聊天界面的activity(聊天界面的新消息通知设置 找不到)

package com.kaixin.android.activity;import java.io.IOException;import java.io.InputStream;import org.json.JSONArray;import org.json.JSONException;import android.app.AlertDialog;import android.content.DialogInterface;import android.content.Intent;import android.graphics.BitmapFactory;import android.os.Bundle;import android.text.TextUtils;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.EditText;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.RelativeLayout;import android.widget.TextView;import com.kaixin.android.KXActivity;import com.kaixin.android.R;import com.kaixin.android.result.ChatResult;import com.kaixin.android.utils.PhotoUtil;import com.kaixin.android.utils.TextUtil;import com.kaixin.android.utils.Utils;/** * 聊天类 * * @author rendongwei * */public class ChatActivity extends KXActivity {private LinearLayout mParent;private Button mBack;private TextView mTitle;private Button mAction;private ListView mDisplay;private Button mFace;private EditText mContent;private Button mSend;private ChatAdapter mAdapter;private String mName;// 当前聊天用户名称private int mAvatar;// 当前聊天用户的头像protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.chat_activity);findViewById();setListener();init();}private void findViewById() {mParent = (LinearLayout) findViewById(R.id.chat_parent);mBack = (Button) findViewById(R.id.chat_back);mTitle = (TextView) findViewById(R.id.chat_title);mAction = (Button) findViewById(R.id.chat_action);mDisplay = (ListView) findViewById(R.id.chat_display);mFace = (Button) findViewById(R.id.chat_face);mContent = (EditText) findViewById(R.id.chat_content);mSend = (Button) findViewById(R.id.chat_send);}private void setListener() {mBack.setOnClickListener(new OnClickListener() {public void onClick(View v) {// 关闭当前界面finish();}});mAction.setOnClickListener(new OnClickListener() {public void onClick(View v) {// 查看聊天记录的对话框new AlertDialog.Builder(ChatActivity.this).setTitle("开心网").setItems(new String[] { "聊天记录" },new DialogInterface.OnClickListener() {public void onClick(DialogInterface dialog,int which) {// 跳转到聊天记录界面,并传递当前聊天用户的姓名和头像Intent intent = new Intent();intent.setClass(ChatActivity.this,ChatLogsActivity.class);intent.putExtra("name", mName);intent.putExtra("avatar", mAvatar);startActivity(intent);}}).setNegativeButton("取消",new DialogInterface.OnClickListener() {public void onClick(DialogInterface dialog,int which) {dialog.cancel();}}).create().show();}});mFace.setOnClickListener(new OnClickListener() {public void onClick(View v) {// 显示表情对话框showFace(mParent);}});mSend.setOnClickListener(new OnClickListener() {public void onClick(View v) {// 获取当前输入的聊天内容String content = mContent.getText().toString().trim();// 聊天内容不为空时执行if (!TextUtils.isEmpty(content)) {// 添加聊天信息ChatResult result = new ChatResult();result.setTime(Utils.getTime(ChatActivity.this));result.setType(1);result.setContent(content);mKXApplication.mChatResults.add(result);// 更新界面并滚动到最后一条信息,并清空输入框mAdapter.notifyDataSetChanged();mDisplay.setSelection(mKXApplication.mChatResults.size());mContent.setText("");}}});mFaceClose.setOnClickListener(new OnClickListener() {public void onClick(View v) {// 关闭表情对话框dismissFace();}});mFaceGridView.setOnItemClickListener(new OnItemClickListener() {public void onItemClick(AdapterView<?> parent, View view,int position, long id) {// 获取当前光标所在位置int currentPosition = mContent.getSelectionStart();// 添加有表情的文字mContent.setText(new TextUtil(mKXApplication).replace(mContent.getText().insert(currentPosition,mKXApplication.mFacesText.get(position))));// 关闭表情对话框dismissFace();}});}private void init() {// 获取当前聊天的用户的姓名和头像,并显示姓名到标题栏mName = getIntent().getStringExtra("name");mAvatar = getIntent().getIntExtra("avatar", -1);mTitle.setText(mName);// 获取聊天记录getChat();// 添加适配器并滚动到最后一条信息mAdapter = new ChatAdapter();mDisplay.setAdapter(mAdapter);mDisplay.setSelection(mKXApplication.mChatResults.size());}/*** 获取聊天记录*/private void getChat() {// 判断存储的聊天记录是否已经存在,存在则不在获取if (mKXApplication.mChatResults.isEmpty()) {InputStream inputStream;try {inputStream = getAssets().open("data/chat.KX");String json = new TextUtil(mKXApplication).readTextFile(inputStream);JSONArray array = new JSONArray(json);ChatResult result = null;for (int i = 0; i < array.length(); i&#;&#;) {result = new ChatResult();result.setTime(array.getJSONObject(i).getString("time"));result.setContent(array.getJSONObject(i).getString("content"));result.setType(array.getJSONObject(i).getInt("type"));mKXApplication.mChatResults.add(result);}} catch (IOException e) {e.printStackTrace();} catch (JSONException e) {e.printStackTrace();}}}public class ChatAdapter extends BaseAdapter {public int getCount() {return mKXApplication.mChatResults.size();}public Object getItem(int position) {return mKXApplication.mChatResults.get(position);}public long getItemId(int position) {return position;}public View getView(int position, View convertView, ViewGroup parent) {ViewHolder holder = null;if (convertView == null) {convertView = LayoutInflater.from(ChatActivity.this).inflate(R.layout.chat_activity_item, null);holder = new ViewHolder();holder.in = (RelativeLayout) convertView.findViewById(R.id.chat_item_in_layout);holder.out = (RelativeLayout) convertView.findViewById(R.id.chat_item_out_layout);holder.inAvatar = (ImageView) convertView.findViewById(R.id.chat_item_in_avatar);holder.outAvatar = (ImageView) convertView.findViewById(R.id.chat_item_out_avatar);holder.inName = (TextView) convertView.findViewById(R.id.chat_item_in_name);holder.outName = (TextView) convertView.findViewById(R.id.chat_item_out_name);holder.inTime = (TextView) convertView.findViewById(R.id.chat_item_in_time);holder.outTime = (TextView) convertView.findViewById(R.id.chat_item_out_time);holder.inContent = (TextView) convertView.findViewById(R.id.chat_item_in_content);holder.outContent = (TextView) convertView.findViewById(R.id.chat_item_out_content);convertView.setTag(holder);} else {holder = (ViewHolder) convertView.getTag();}ChatResult result = mKXApplication.mChatResults.get(position);// 根据消息的类型,显示不同的界面效果,1为用户自己发出的消息,2为用户收到的消息switch (result.getType()) {case 1:holder.in.setVisibility(View.GONE);holder.out.setVisibility(View.VISIBLE);holder.outAvatar.setImageBitmap(PhotoUtil.toRoundCorner(BitmapFactory.decodeResource(getResources(),R.drawable.head), ));holder.outName.setText("我");holder.outTime.setText(result.getTime());holder.outContent.setText(new TextUtil(mKXApplication).replace(result.getContent()));break;case 2:holder.out.setVisibility(View.GONE);holder.in.setVisibility(View.VISIBLE);holder.inAvatar.setImageBitmap(mKXApplication.getAvatar(mAvatar));holder.inName.setText(mName);holder.inTime.setText(result.getTime());holder.inContent.setText(new TextUtil(mKXApplication).replace(result.getContent()));break;}return convertView;}class ViewHolder {RelativeLayout in;RelativeLayout out;ImageView inAvatar;ImageView outAvatar;TextView inName;TextView outName;TextView inTime;TextView outTime;TextView inContent;TextView outContent;}}}

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