android 实现qq聊天对话界面效果

2022-06-13 22:00:01

效果图：

chatting_item_from.xml

chatting_item_to.xml:

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout android:orientation="vertical" android:paddingLeft="6.0dip" android:paddingRight="6.0dip" android:layout_width="fill_parent" android:layout_height="wrap_content"
  xmlns:android="http://schemas.android.com/apk/res/android">
    <TextView
     android:id="@+id/chatting_time_tv"
     style="@style/ChattingUISplit" />
    <LinearLayout
     android:orientation="horizontal"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content">
        <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_weight="1.0" />
        <ImageView
         android:id="@+id/chatting_state_iv"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" />
          <TextView
         android:
         android:id="@+id/chatting_content_itv"
         android:background="@drawable/chatto_bg"
         style="@style/ChattingUIText" />
    </LinearLayout>
</LinearLayout>

chatting_title_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="40dip"
    android:orientation="horizontal"
    android:gravity="center_vertical"
android:background="@drawable/mmtitle_bg">
<TextView
  android:id="@+id/chatting_contact_name"
  android:layout_height="wrap_content"
  android:layout_width="180dip"
  android:textSize="18sp"
  android:ellipsize="end"
  android:background="@null"
  android:textColor="@color/white"
  android:gravity="left|center"
  android:paddingLeft="10dip"
  android:text="测试用户"
/>
<TextView
  android:id="@+id/chatting_contact_status"
  android:layout_height="wrap_content"
  android:layout_width="wrap_content"
  android:background="@null"
  android:text="正在输入..."
  android:textSize="16sp"
  android:textColor="@color/white"
  android:layout_alignParentRight="true"
  android:layout_alignParentBottom="true"
  android:padding="3dip"
  android:layout_toRightOf="@id/chatting_contact_name"
  android:visibility="gone"
/>

</RelativeLayout>

chatting.xml

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout
android:id="@+id/chat_root"
android:focusable="false"
android:focusableInTouchMode="false"
android:background="@drawable/nav_page"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
   xmlns:android="http://schemas.android.com/apk/res/android">
    <ListView
     android:id="@+id/chatting_history_lv"
     android:background="@null"
     android:scrollbars="vertical"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:listSelector="@drawable/mm_chat_listitem"
     android:transcriptMode="alwaysScroll"
     android:cacheColorHint="#00000000"
     android:divider="@null"
     android:layout_weight="1.0" />
   <LinearLayout
     android:orientation="horizontal"
     android:background="@drawable/txt_msg_bg"
     android:paddingRight="7.0dip"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content">
        <ImageView
         android:layout_gravity="center_vertical"
         android:id="@+id/sms_button_insert"
         android:paddingLeft="15.0dip"
         android:paddingTop="5.0dip"
         android:paddingRight="7.0dip"
         android:paddingBottom="5.0dip"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:src="@drawable/sms_insert" />
        <EditText
         android:textColorHint="@color/search_hint"
         android:layout_gravity="center_vertical"
         android:id="@+id/text_editor"
         android:background="@drawable/sms_embeded_text_editor_bg"
         android:focusable="true"
         android:nextFocusRight="@+id/send_button"
         android:layout_width="0.0dip"
         android:layout_height="wrap_content"
         android:layout_marginLeft="7.0dip"
         android:layout_marginTop="5.0dip"
         android:layout_marginRight="7.0dip"
         android:layout_marginBottom="5.0dip"
         android:minHeight="34.0dip"
         android:hint="输入消息"
         android:maxLines="8"
         android:maxLength="2000"
         android:capitalize="sentences"
         android:
         android:layout_weight="1.0"
         android:inputType="textCapSentences|textAutoCorrect|textMultiLine|textShortMessage"
         android:imeOptions="actionSend|flagNoEnterAction" />
        <Button
         android:gravity="center"
         android:layout_gravity="center_vertical"
         android:id="@+id/send_button"
         android:background="@drawable/sms_send_button_bg"
         android:paddingLeft="11.0dip"
         android:paddingRight="11.0dip"
         android:nextFocusLeft="@id/text_editor"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         />
     </LinearLayout>
</LinearLayout>

实体类:

public class ChatMessage {

public static final int MESSAGE_FROM = 0;
public static final int MESSAGE_TO = 1;

private int direction;
private String content;

public ChatMessage(int direction, String content) {
  super();
  this.direction = direction;
  this.content = content;
}

public int getDirection() {
return direction;
}

public void setDirection(int direction) {
this.direction = direction;
}

public void setContent(String content) {
this.content = content;
}

public CharSequence getContent() {
return content;
}

}

adapter类：

import java.util.List;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class ChattingAdapter extends BaseAdapter {
protected static final String TAG = "ChattingAdapter";
private Context context;

private List<ChatMessage> chatMessages;

public ChattingAdapter(Context context, List<ChatMessage> messages) {
  super();
  this.context = context;
  this.chatMessages = messages;

}

public int getCount() {
return chatMessages.size();
}

public Object getItem(int position) {
return chatMessages.get(position);
}

public long getItemId(int position) {
return position;
}

public View getView(int position, View convertView, ViewGroup parent) {
  ViewHolder holder = null;
  ChatMessage message = chatMessages.get(position);
  if (convertView == null || (holder = (ViewHolder) convertView.getTag()).flag != message.getDirection()) {

   holder = new ViewHolder();
   if (message.getDirection() == ChatMessage.MESSAGE_FROM) {
    holder.flag = ChatMessage.MESSAGE_FROM;

    convertView = LayoutInflater.from(context).inflate(R.layout.chatting_item_from, null);
   } else {
    holder.flag = ChatMessage.MESSAGE_TO;
    convertView = LayoutInflater.from(context).inflate(R.layout.chatting_item_to, null);
   }

   holder.text = (TextView) convertView.findViewById(R.id.chatting_content_itv);
   convertView.setTag(holder);
  }
  holder.text.setText(message.getContent());

  return convertView;
}
//优化listview的Adapter
static class ViewHolder {
  TextView text;
  int flag;
}

}

主activity类
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;

public class MainActivity extends Activity {
protected static final String TAG = "MainActivity";
private ChattingAdapter chatHistoryAdapter;
private List<ChatMessage> messages = new ArrayList<ChatMessage>();

private ListView chatHistoryLv;
private Button sendBtn;
private EditText textEditor;
//private ImageView sendImageIv;
//private ImageView captureImageIv;
//private View recording;
//private PopupWindow menuWindow = null;

@Override
public void onCreate(Bundle savedInstanceState) {
  requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
  super.onCreate(savedInstanceState);
  setContentView(R.layout.chatting);
  getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.chatting_title_bar);
  chatHistoryLv = (ListView) findViewById(R.id.chatting_history_lv);
  setAdapterForThis();
  sendBtn = (Button) findViewById(R.id.send_button);
  textEditor = (EditText) findViewById(R.id.text_editor);

  sendBtn.setOnClickListener(l);

}

// 设置adapter
private void setAdapterForThis() {
  initMessages();
  chatHistoryAdapter = new ChattingAdapter(this, messages);
  chatHistoryLv.setAdapter(chatHistoryAdapter);
}

// 为listView添加数据
private void initMessages() {
  messages.add(new ChatMessage(ChatMessage.MESSAGE_FROM, "hello"));
  messages.add(new ChatMessage(ChatMessage.MESSAGE_TO, "hello"));
  messages.add(new ChatMessage(ChatMessage.MESSAGE_FROM, "你好吗？"));
  messages.add(new ChatMessage(ChatMessage.MESSAGE_TO, "非常好!"));
  messages.add(new ChatMessage(ChatMessage.MESSAGE_FROM, "欢迎光临我的博客，http://hi.csdn.net/lyfi01"));
  messages.add(new ChatMessage(ChatMessage.MESSAGE_TO, "恩，好的，谢谢"));
}

private View.OnClickListener l = new View.OnClickListener() {

public void onClick(View v) {

   if (v.getId() == sendBtn.getId()) {
    String str = textEditor.getText().toString();
    String sendStr;
    if (str != null
      && (sendStr = str.trim().replaceAll("\r", "").replaceAll("\t", "").replaceAll("\n", "")
        .replaceAll("\f", "")) != "") {
     sendMessage(sendStr);

}
textEditor.setText("");

}
}

  // 模拟发送消息
  private void sendMessage(String sendStr) {
   messages.add(new ChatMessage(ChatMessage.MESSAGE_TO, sendStr));
   chatHistoryAdapter.notifyDataSetChanged();
  }

};
}

转自：http://blog.sina.com.cn/s/blog_80723de80100vnxg.html

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