密碼 隱藏 顯示 兩種都能方法都能實現

public class Main2 extends Activity {
private EditText editText1;
private ImageView im;
private boolean flag = true;


@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.two);
editText1 = (EditText) findViewById(R.id.editText1);
im = (ImageView) findViewById(R.id.im);


im.setOnClickListener(new OnClickListener() {


@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if (flag) {
// 顯示密碼
// editText1
// .setInputType(InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
editText1
.setTransformationMethod(HideReturnsTransformationMethod
.getInstance());


} else {
//隱藏密碼
// editText1.setInputType(InputType.TYPE_CLASS_TEXT
// | InputType.TYPE_TEXT_VARIATION_PASSWORD);
editText1
.setTransformationMethod(PasswordTransformationMethod
.getInstance());
}
flag = !flag;

//光標 後移
CharSequence s = editText1.getText();
if (s instanceof Spannable) {
Spannable spannable = (Spannable) s;
Selection.setSelection(spannable, s.length());
}
}


});
}
}