密码显示与隐藏

密码显示与隐藏

• 控件
  <CheckBox
  android:id="@+id/login_pwd"
  android:layout_width="28.5dp"
  android:layout_height="28.5dp"
  android:layout_gravity="center_vertical"
  android:layout_marginLeft="5dip"
  android:visibility="visible"
  android:button="@null"
  android:background="@drawable/password_isvisable"/>
• selector
  <?xml version="1.0" encoding="utf-8"?>
  <selector
  xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:state_checked="true" android:drawable="@drawable/icon_bukejian" />
  <item android:state_selected="true" android:drawable="@drawable/icon_bukejian"> </item>
  <item android:state_pressed="true" android:drawable="@drawable/icon_bukejian"></item>
  <item android:state_checked="false" android:drawable="@drawable/icon_kejian" />
  </selector>

• code
  mPwdImage.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

  @Override
  public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
   // TODO Auto-generated method stub
   if(isChecked){
       //如果选中，显示密码
       mUserPassword.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
   }else{
       //否则隐藏密码
       mUserPassword.setTransformationMethod(PasswordTransformationMethod.getInstance());
    }
  }