类似iphone的短消息效果

 

 1 package com.ql.app;  
 2   
 3 import java.util.ArrayList;  
 4 import java.util.List;  
 5   
 6 import android.app.Activity;  
 7 import android.content.Intent;  
 8 import android.os.Bundle;  
 9 import android.view.View;  
10 import android.widget.Button;  
11 import android.widget.EditText;  
12 import android.widget.ImageView;  
13 import android.widget.ListView;  
14   
15 public class ChatActivity extends Activity {  
16       
17     private ChattingAdapter adapter;  
18     private List<ChatMessage> messages = new ArrayList<ChatMessage>();  
19     private ListView listView;  
20     private Button btn_send;  
21     private EditText textEditor;  
22     private ImageView btn_insert;  
23       
24     /** Called when the activity is first created. */  
25     @Override  
26     public void onCreate(Bundle savedInstanceState) {  
27         super.onCreate(savedInstanceState);  
28         setContentView(R.layout.main);  
29           
30         messages.add(new ChatMessage(ChatMessage.MESSAGE_FROM, "hello,android."));  
31         messages.add(new ChatMessage(ChatMessage.MESSAGE_TO, "hello,java."));  
32         messages.add(new ChatMessage(ChatMessage.MESSAGE_FROM, "请教高手，怎么可以给gridview设置边框啊，现在这个显示效果实在太难看了。"));  
33         messages.add(new ChatMessage(ChatMessage.MESSAGE_TO, "那就加点背景，加点属性什么的不就行了吗"));  
34         messages.add(new ChatMessage(ChatMessage.MESSAGE_FROM, "在主题中,将gridview的cssclass设置为gridview"));  
35         messages.add(new ChatMessage(ChatMessage.MESSAGE_TO, "谢谢"));  
36         listView=(ListView)findViewById(R.id.listView);  
37         adapter = new ChattingAdapter(this, messages);  
38         listView.setAdapter(adapter);  
39           
40         btn_send = (Button) findViewById(R.id.btn_send);  
41         textEditor = (EditText) findViewById(R.id.text_editor);  
42           
43         btn_insert=(ImageView) findViewById(R.id.btn_insert);  
44         btn_send.setOnClickListener(listener);  
45         btn_insert.setOnClickListener(listener);  
46     }  
47       
48       
49     private View.OnClickListener listener = new View.OnClickListener() {  
50   
51         @Override  
52         public void onClick(View v) {  
53             switch (v.getId()) {  
54             case R.id.btn_send:  
55                 String str = textEditor.getText().toString();  
56                 String sendStr=str.trim();  
57                 if(!sendStr.equals("")){  
58                     sendMessage(sendStr);  
59                 }  
60                 textEditor.setText("");  
61                 break;  
62             case R.id.btn_insert:  
63                 Intent i = new Intent();  
64                 i.setType("image/*");  
65                 i.setAction(Intent.ACTION_GET_CONTENT);  
66                 startActivityForResult(i, Activity.DEFAULT_KEYS_SHORTCUT);  
67                   
68 //              Intent it = new Intent("android.media.action.IMAGE_CAPTURE");  
69 //              startActivityForResult(it, Activity.DEFAULT_KEYS_DIALER);  
70                 break;  
71             default:  
72                 break;  
73             }  
74         }  
75   
76         // 模拟发送消息  
77         private void sendMessage(String sendStr) {  
78             messages.add(new ChatMessage(ChatMessage.MESSAGE_TO, sendStr));  
79             adapter.notifyDataSetChanged();  
80         }  
81   
82     };  
83       
84       
85       
86 }  

 

 1 <?xml version="1.0" encoding="utf-8"?>  
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
 3     android:orientation="vertical"  
 4     android:layout_width="fill_parent"  
 5     android:layout_height="fill_parent"  
 6     android:focusable="false"   
 7     android:focusableInTouchMode="false"   
 8     android:background="@drawable/nav_page"  
 9     android:gravity="center_horizontal"  
10 >  
11      <ListView   
12 android:id="@+id/listView"   
13         android:background="@null"   
14         android:scrollbars="vertical"   
15         android:layout_width="fill_parent"   
16         android:layout_height="wrap_content"   
17         android:listSelector="@null"   
18         android:transcriptMode="alwaysScroll"   
19         android:cacheColorHint="#00000000"   
20         android:divider="@null"   
21         android:layout_weight="1.0"   
22 />  
23         <LinearLayout   
24 android:orientation="horizontal"   
25         android:layout_width="fill_parent"   
26         android:layout_height="wrap_content"  
27         android:background="@drawable/txt_msg_bg"   
28         android:paddingRight="7.0dip"   
29 >  
30         <ImageView   
31 android:id="@+id/btn_insert"   
32             android:layout_gravity="center_vertical"   
33             android:paddingLeft="15.0dip"   
34             android:paddingTop="5.0dip"   
35             android:paddingRight="7.0dip"   
36             android:paddingBottom="5.0dip"   
37             android:layout_width="wrap_content"   
38             android:layout_height="wrap_content"   
39             android:src="@drawable/sms_insert"   
40 />  
41         <EditText  
42 android:id="@+id/text_editor"   
43             android:layout_width="0.0dip"   
44             android:layout_height="wrap_content"   
45             android:layout_gravity="center_vertical"   
46             android:background="@drawable/sms_embeded_text_editor_bg"   
47             android:focusable="true"   
48             android:nextFocusRight="@+id/send_button"   
49             android:layout_marginLeft="7.0dip"   
50             android:layout_marginTop="5.0dip"   
51             android:layout_marginRight="7.0dip"   
52             android:layout_marginBottom="5.0dip"   
53             android:minHeight="34.0dip"   
54             android:hint="输入消息"   
55             android:maxLines="8"   
56             android:maxLength="2000"   
57             android:capitalize="sentences"   
58             android:autoText="true"   
59             android:layout_weight="1.0"   
60             android:inputType="textCapSentences|textAutoCorrect|textMultiLine|textShortMessage"   
61             android:imeOptions="actionSend|flagNoEnterAction"   
62 />  
63         <Button   
64 android:id="@+id/btn_send"   
65             android:layout_width="wrap_content"   
66             android:layout_height="wrap_content"   
67             android:gravity="center"   
68             android:layout_gravity="center_vertical"   
69             android:background="@drawable/sms_send_button_bg"   
70             android:paddingLeft="11.0dip"   
71             android:paddingRight="11.0dip"   
72             android:nextFocusLeft="@id/text_editor"   
73 />  
74      </LinearLayout>  
75 </LinearLayout>  

原文连接：http://gundumw100.iteye.com/blog/1056517