1 package com.dome;    2     3 import android.app.Activity;    4 import android.content.Intent;    5 import android.os.Bundle;    6 import android.view.KeyEvent;    7 import android.view.View;    8 import android.view.WindowManager;    9 import android.view.inputmethod.InputMethodManager;   10 import android.widget.Button;   11 import android.widget.Toast;   12    13 /**   14  * 这是一个控制虚拟键盘的Dome   15  *    16  * @author wuxin   17  *    18  */   19 public class KeyCodeDomeActivity extends Activity {   20    21     // 自定一个可以打开虚拟键盘的按钮   22     private Button button;   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         // 获得它的资源   31         button = (Button) findViewById(R.id.button1);   32    33         // 设置它的监听事件   34         button.setOnClickListener(new View.OnClickListener() {   35    36             @Override   37             public void onClick(View v) {   38                 // TODO Auto-generated method stub   39    40 // 获得控制键盘的类的对象   41                 InputMethodManager imm = (InputMethodManager) KeyCodeDomeActivity.this   42                         .getSystemService(INPUT_METHOD_SERVICE);   43    44                 // 打开（自动控制的再次点击按钮就会消失的）   45                 imm.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);   46             }   47         });   48    49     }   50    51     /**   52      * 当触发点击按钮事件后（仅限于虚拟键盘、返回键、Home键、菜单键....）   53 */   54     @Override   55     public boolean onKeyDown(int keyCode, KeyEvent event) {   56         // TODO Auto-generated method stub   57    58         /*   59          *  判断是否点击的按键是返回键/注意添加权限：android.permission.BIND_INPUT_METHOD   60 */   61         if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {   62    63             Toast.makeText(KeyCodeDomeActivity.this, "我是返回键",   64                     Toast.LENGTH_SHORT).show();   65    66             return true;// 一定要设置为true否则回回退   67    68         }   69    70         /*   71          *  判断是否点击的按键是Home键/注意添加权限：android.permission.DISABLE_KEYGUARD   72          *  重点：一定要加上下面的onAttachedToWindow()方法   73 */   74         if (KeyEvent.KEYCODE_HOME == keyCode) {   75    76             Toast.makeText(getApplicationContext(), "我是Home键",   77                     Toast.LENGTH_SHORT).show();   78    79             return true;   80    81         }   82            83         /*   84          * 判断是否点击的按键是menu键   85 */   86         if(KeyEvent.KEYCODE_MENU == keyCode){   87                88             Toast.makeText(getApplicationContext(), "我是Menu键",   89                     Toast.LENGTH_SHORT).show();   90                91             return true;   92                93         }   94            95         /*   96          * 判断是否点击的按键是搜索键   97 */   98         if(KeyEvent.KEYCODE_SEARCH == keyCode){   99               100             Toast.makeText(getApplicationContext(), "我是搜索键",  101                     Toast.LENGTH_SHORT).show();  102               103             return true;  104               105         }  106           107   108         return super.onKeyDown(keyCode, event);  109     }  110   111     /*  112      * (non-Javadoc)  113      * @see android.app.Activity#onAttachedToWindow()  114 */  115     public void onAttachedToWindow() {  116         this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);  117         super.onAttachedToWindow();  118     }  119   120 }