android-菜单键，回到键，搜索键的重写(转)

android-菜单键，返回键，搜索键的重写(转)

分类：?android基础2011-08-07 21:08?852人阅读?评论(0)?收藏?举报[java]?view plaincopyprint?

1. 返回键???

[java]?view plaincopyprint?

1. @Override??

[java]?view plaincopyprint?

1. public?void?onBackPressed()?{??
2. ????//?TODO?Auto-generated?method?stub??
3. ????Toast?toast=Toast.makeText(config.this,?"此键坏掉了。。。\n按旁边的吧！",?3000);??
4. ????toast.setGravity(Gravity.CENTER,?0,?0);??
5. ????toast.show();??
6. }??

[java]?view plaincopyprint?

1. 搜索键??
2. ????@Override??
3. ????public?boolean?onSearchRequested()?{??
4. ????????//?TODO?Auto-generated?method?stub??
5. ????????Toast.makeText(config.this,?"我一直是坏掉的。。。",?1000).show();??
6. ????????return?super.onSearchRequested();??
7. ????}??

菜单键
[java]?view plaincopyprint?

1. @Override??
2. ????public?boolean?onCreateOptionsMenu(Menu?menu)?{??
3. ????????//?TODO?Auto-generated?method?stub??
4. ????????menu.add(0,?0,?0,?"退出");??
5. ????????return?super.onCreateOptionsMenu(menu);??
6. ????}??
7. ??
8. ????@Override??
9. ????public?boolean?onOptionsItemSelected(MenuItem?item)?{??
10. ????????//?TODO?Auto-generated?method?stub??
11. ????????switch?(item.getItemId())?{??
12. ????????case?0:??
13. ??????????????
14. ????????????finish();??
15. ????????????break;??
16. ????????}??
17. ????????return?super.onOptionsItemSelected(item);??
18. ????}??

?

[java]?view plaincopyprint?

1. <span?style="color:#FF0000;">先禁止Home键，再在onKeyDown里处理按键值，点击Home键的时候就把程序关闭</span>??

?

[java]?view plaincopyprint?

1. ???
2. @Override??
3. ?public?boolean?onKeyDown(int?keyCode,?KeyEvent?event)??
4. {?//?TODO?Auto-generated?method?stub??
5. ??if(KeyEvent.KEYCODE_HOME==keyCode)??
6. ????android.os.Process.killProcess(android.os.Process.myPid());??
7. ?????return?super.onKeyDown(keyCode,?event);??
8. ??}??
9. ???
10. @Override??
11. ?public?void?onAttachedToWindow()??
12. ?{?//?TODO?Auto-generated?method?stub??
13. ????this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);??
14. ????super.onAttachedToWindow();??
15. ?}??
16. ???
17. ???
18. 加权限禁止Home键??
19. <uses-permission?android:name="android.permission.DISABLE_KEYGUARD"></uses-permission> ?