[置顶] 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>