显示/隐藏登录密码

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;

@Override
protected 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() {

@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
// TODO Auto-generated method stub

if (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" >

<CheckBox
android: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" />

<EditText
android: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>