Activity 中动态增加控件

1. @Override
2. protectedvoid onCreate(Bundle savedInstanceState) {
3. super.onCreate(savedInstanceState);
4. final LinearLayout linearLayout=new LinearLayout(this);
5. linearLayout.setOrientation(LinearLayout.VERTICAL);
7. LinearLayout linearLayout1 =new LinearLayout(this);
8. linearLayout1.setOrientation(LinearLayout.VERTICAL);
10. Button button1= new Button(this);
11. button1.setText("增加新项目");
13. Button button2 = new Button(this);
14. button2.setText("增加新组");
16. linearLayout.addView(button1);
17. linearLayout.addView(button2);
19. //设定按钮单击监听器,动态增加控件.
20. button2.setOnClickListener(new Button.OnClickListener(){
21. publicvoid onClick(View v) {
22. Context context = v.getContext();
23. LinearLayout linearLayout2 =new LinearLayout(context);
24. linearLayout2.setOrientation(LinearLayout.HORIZONTAL);
26. EditText groupNameEditText =new EditText(context);
27. //设置控件大小.
28. groupNameEditText.setWidth(160);
30. ImageButton imagebutton1 =new ImageButton(context);
31. Button saveButton = new Button(context);
32. Button exitButton = new Button(context);
34. linearLayout2.addView(groupNameEditText);
35. linearLayout2.addView(imagebutton1);
36. linearLayout2.addView(saveButton);
37. linearLayout2.addView(exitButton);
38. linearLayout.addView(linearLayout2);
40. }
41. });
43. setContentView(linearLayout);
44. }