EditText密码可见与不可见

来源：互联网发布：ua base 2.0 知乎编辑：程序博客网时间：2024/04/29 16:53

这里只当做记录，原文请看
http://www.runoob.com/w3cnote/android-tutorial-listener-edittext-change.html

1.Java代码

package com.jay.demo.edittextdemo;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.text.method.HideReturnsTransformationMethod;import android.text.method.PasswordTransformationMethod;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.Button;import android.widget.EditText;public class MainActivity extends AppCompatActivity {    private EditText edit_pawd;    private Button btnChange;    private boolean flag = false;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        edit_pawd = (EditText) findViewById(R.id.edit_pawd);        btnChange = (Button) findViewById(R.id.btnChange);        edit_pawd.setHorizontallyScrolling(true);    //设置EditText不换行        btnChange.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                if(flag == true){                    edit_pawd.setTransformationMethod(HideReturnsTransformationMethod.getInstance());                    flag = false;                    btnChange.setText("密码不可见");                }else{                    edit_pawd.setTransformationMethod(PasswordTransformationMethod.getInstance());                    flag = true;                    btnChange.setText("密码可见");                }            }        });    }}

2.EditText背景

<?xml version="1.0" encoding="utf-8"?>  <shape xmlns:android="http://schemas.android.com/apk/res/android" >      <!-- 设置透明背景色 -->      <solid android:color="#FFFFFF" />      <!-- 设置一个白色边框 -->      <stroke          android:width="1px"          android:color="#FFFFFF" />      <!-- 设置一下边距,让空间大一点 -->      <padding          android:bottom="5dp"          android:left="5dp"          android:right="5dp"          android:top="5dp" />  </shape>

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