利用复选框勾选---显示/隐藏登录密码(例如 电脑无线密码查看)

【MainActivity.java】

package com.example.test;import android.os.Bundle;
import android.app.Activity;
import android.text.InputType;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;public class MainActivity extends Activity {private CheckBox c1;private EditText e1;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);c1 = (CheckBox) findViewById(R.id.checkBox1);e1 = (EditText) findViewById(R.id.editText1);e1.getText().toString();c1.setOnCheckedChangeListener(new OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {// TODO Auto-generated method stubif (isChecked) {e1.setInputType(InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);} else {e1.setInputType(InputType.TYPE_CLASS_TEXT| InputType.TYPE_TEXT_VARIATION_PASSWORD);}}});}
}

【布局文件】

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:paddingBottom="@dimen/activity_vertical_margin"android:paddingLeft="@dimen/activity_horizontal_margin"android:paddingRight="@dimen/activity_horizontal_margin"android:paddingTop="@dimen/activity_vertical_margin"tools:context=".MainActivity" ><CheckBoxandroid:id="@+id/checkBox1"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentLeft="true"android:layout_alignParentTop="true"android:layout_marginLeft="19dp"android:layout_marginTop="160dp"android:text="显示密码" /><EditTextandroid:id="@+id/editText1"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignBottom="@+id/checkBox1"android:layout_alignLeft="@+id/checkBox1"android:layout_marginBottom="47dp"android:ems="10"android:inputType="textPassword" /></RelativeLayout>