Android实现动态显示或隐藏密码输入框的内容

private Button mBtnPassword;
private EditText mEtPassword;
private boolean mbDisplayFlg = false;
 
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);

  mEtPassword = (EditText)findViewById(R.id.password);
  mBtnPassword = (Button)findViewById(R.id.btnPassword);
  mBtnPassword.setOnClickListener(new OnClickListener() {

 @Override
 public void onClick(View v) {
 // TODO Auto-generated method stub
 Log.d("AndroidTest", "mbDisplayFlg = " + mbDisplayFlg);
 if (!mbDisplayFlg) {
  // display password text, for example "123456"
  mEtPassword.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
 } else {
  // hide password, display "."
  mEtPassword.setTransformationMethod(PasswordTransformationMethod.getInstance());
 }
 mbDisplayFlg = !mbDisplayFlg;
 mEtPassword.postInvalidate();
 }
  });
}

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