Android中控制虛擬鍵盤

 

  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  * 這是一個控制虛擬鍵盤的Dome  
 15  *   
 16  * @author wuxin  
 17  *   
 18  */  
 19 public class KeyCodeDomeActivity extends Activity {  
 20   
 21     // 自定一個可以開啟虛擬鍵盤的按鈕  
 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         // 獲得它的資源  
 31         button = (Button) findViewById(R.id.button1);  
 32   
 33         // 設定它的監聽事件  
 34         button.setOnClickListener(new View.OnClickListener() {  
 35   
 36             @Override  
 37             public void onClick(View v) {  
 38                 // TODO Auto-generated method stub  
 39   
 40 // 獲得修飾鍵盤的類的對象  
 41                 InputMethodManager imm = (InputMethodManager) KeyCodeDomeActivity.this  
 42                         .getSystemService(INPUT_METHOD_SERVICE);  
 43   
 44                 // 開啟（自動控制的再次點擊按鈕就會消失的）  
 45                 imm.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);  
 46             }  
 47         });  
 48   
 49     }  
 50   
 51     /**  
 52      * 當觸發點擊按鈕事件後（僅限於虛擬鍵盤、返回鍵、Home鍵、菜單鍵....）  
 53 */  
 54     @Override  
 55     public boolean onKeyDown(int keyCode, KeyEvent event) {  
 56         // TODO Auto-generated method stub  
 57   
 58         /*  
 59          *  判斷是否點擊的按鍵是返回鍵/注意添加許可權：android.permission.BIND_INPUT_METHOD  
 60 */  
 61         if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {  
 62   
 63             Toast.makeText(KeyCodeDomeActivity.this, "我是返回鍵",  
 64                     Toast.LENGTH_SHORT).show();  
 65   
 66             return true;// 一定要設定為true否則回回退  
 67   
 68         }  
 69   
 70         /*  
 71          *  判斷是否點擊的按鍵是Home鍵/注意添加許可權：android.permission.DISABLE_KEYGUARD  
 72          *  重點：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鍵",  
 77                     Toast.LENGTH_SHORT).show();  
 78   
 79             return true;  
 80   
 81         }  
 82           
 83         /*  
 84          * 判斷是否點擊的按鍵是menu鍵  
 85 */  
 86         if(KeyEvent.KEYCODE_MENU == keyCode){  
 87               
 88             Toast.makeText(getApplicationContext(), "我是Menu鍵",  
 89                     Toast.LENGTH_SHORT).show();  
 90               
 91             return true;  
 92               
 93         }  
 94           
 95         /*  
 96          * 判斷是否點擊的按鍵是搜尋鍵  
 97 */  
 98         if(KeyEvent.KEYCODE_SEARCH == keyCode){  
 99               
100             Toast.makeText(getApplicationContext(), "我是搜尋鍵",  
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 }