Android 實現微信聊天一樣的布局

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="wrap_content"
5. android:layout_height="wrap_content"
6. >
7. <TextView android:id="@+id/text"
8. android:paddingTop="10dip"
9. android:textColor="#FFA07A"
10. android:background="@drawable/bg_normal"
11. android:layout_width="wrap_content"
12. android:layout_height="wrap_content"/>
13. </LinearLayout>

一個是主程序布局：

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:paddingTop="10dip"
7. android:paddingLeft="30dip"
8. android:paddingRight="30dip"
9. >
10. <ListView android:id="@+id/listview"
11. android:layout_width="fill_parent"
12. android:layout_height="fill_parent"
13. android:clickable="false"
14. android:scrollbars="none">
15. </ListView>
16. </LinearLayout>

主程序代碼如下：

1. package com.cloay;
3. import android.app.Activity;
4. import android.content.Context;
5. import android.os.Bundle;
6. import android.view.LayoutInflater;
7. import android.view.View;
8. import android.view.ViewGroup;
9. import android.widget.BaseAdapter;
10. import android.widget.ListView;
11. import android.widget.TextView;
12. /**
13. *
14. * MyListTestActivity.java
15. * @author cloay
16. * 2011-10-18
17. */
18. public class TestActivity extends Activity {
19. /** Called when the activity is first created. */
20. private ListView listView = null;
21. @Override
22. public void onCreate(Bundle savedInstanceState) {
23. super.onCreate(savedInstanceState);
24. setContentView(R.layout.main);
25. initView();
26. }
28. private void initView() {
29. listView = (ListView)findViewById(R.id.listview);
30. listView.setDividerHeight(0);
31. ListAdapter adapter = new ListAdapter(this, 5);
32. listView.setAdapter(adapter);
33. }
35. public class ListAdapter extends BaseAdapter {
36. private LayoutInflater inflater;
37. private int size;
38. public ListAdapter(Context context, int size){
39. this.size = size;
40. inflater = LayoutInflater.from(context);
41. }
42. @Override
43. public int getCount() {
44. // TODO Auto-generated method stub
45. return size;
46. }
48. @Override
49. public Object getItem(int position) {
50. // TODO Auto-generated method stub
51. return null;
52. }
54. @Override
55. public long getItemId(int position) {
56. // TODO Auto-generated method stub
57. return 0;
58. }
60. @Override
61. public View getView(int position, View convertView, ViewGroup parent) {
62. // TODO Auto-generated method stub
63. convertView = inflater.inflate(R.layout.list, null);
64. TextView text = (TextView) convertView.findViewById(R.id.text);
65. text.setText(position + ":This is a test !dasgagaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaafdfffffdffg");
66. convertView.setEnabled(false);
67. return convertView;
68. }
69. }
70. }