Android中EditTex的密文和明文切换

1. public class ShowpasswordActivity extends Activity {  
2.       
3.     EditText password;  
4.     CheckBox showcheck;  
5. 
   
6.     @Override  
7.     public void onCreate(Bundle savedInstanceState) {  
8.         super.onCreate(savedInstanceState);  
9.         setContentView(R.layout.main);  
10. 
    
11.         password  = (EditText)this.findViewById(R.id.password);  
12.         showcheck = (CheckBox)this.findViewById(R.id.showcheck);  
13. 
    
14.         //CheckBoxe的事件监听  
15.         show.setOnCheckedChangeListener(new OnCheckedChangeListener(){  
16.             @Override  
17.             public void onCheckedChanged(CompoundButton buttonView,
18.                         boolean isChecked) {  
19.                 if(isChecked) {//设置成明文  
20.                     password.setTransformationMethod
21.                         (HideReturnsTransformationMethod.getInstance());  
22.                 } else {//设置成密文  
23.                     password.setTransformationMethod
24.                         (PasswordTransformationMethod.getInstance());  
25.                 }  
26.             }  
27.         });  
28.     }  
29. }