EditText 显示明文和密码

1、效果图

 

2、布局文件

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<?xml version="1.0"encoding="utf-8"?>

<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="wifi.app.wei.com.myapplication.MainActivity">

 

 

    <RelativeLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:padding="10dp"

        >

 

        <ImageView

            android:id="@+id/image"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:src="@mipmap/eye_close"

            android:layout_alignParentRight="true"

            android:layout_centerVertical="true"

            />

 

        <EditText

            android:id="@+id/pass_et"

            android:layout_toLeftOf="@id/image"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:inputType="textPassword"

            />

 

    </RelativeLayout>

 

 

</RelativeLayout>

　　

3、代码实现（方式一）

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package wifi.app.wei.com.myapplication;

 

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.text.InputType;

import android.view.View;

import android.widget.EditText;

import android.widget.ImageView;

 

publicclass MainActivity extends AppCompatActivity {

 

    privateImageView imageView ;

    privateEditText editText ;

    boolean eyeOpen =false ;

 

    @Override

    protectedvoid onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main );

        imageView = (ImageView) findViewById( R.id.image) ;

        editText = (EditText) findViewById( R.id.pass_et);

 

        imageView.setOnClickListener(newView.OnClickListener() {

            @Override

            publicvoid onClick(View view) {

                if( eyeOpen ){

                    //密码 TYPE_CLASS_TEXT 和 TYPE_TEXT_VARIATION_PASSWORD 必须一起使用

                    editText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);

                    imageView.setImageResource( R.mipmap.eye_close );

                    eyeOpen =false ;

                }else{

                    //明文

                    editText.setInputType( InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD );

                    imageView.setImageResource( R.mipmap.eye_open );

                    eyeOpen =true ;

                }

            }

        });

    }

}

　　

 4、代码实现（方式二）

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package wifi.app.wei.com.myapplication;

 

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.text.method.HideReturnsTransformationMethod;

import android.text.method.PasswordTransformationMethod;

import android.view.View;

import android.widget.EditText;

import android.widget.ImageView;

 

publicclass MainActivity extends AppCompatActivity {

 

    privateImageView imageView ;

    privateEditText editText ;

    boolean eyeOpen =false ;

 

    @Override

    protectedvoid onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main );

        imageView = (ImageView) findViewById( R.id.image) ;

        editText = (EditText) findViewById( R.id.pass_et);

 

        imageView.setOnClickListener(newView.OnClickListener() {

            @Override

            publicvoid onClick(View view) {

                if( eyeOpen ){

                    //密码

                    editText.setTransformationMethod(PasswordTransformationMethod.getInstance());

                    imageView.setImageResource( R.mipmap.eye_close );

                    eyeOpen =false ;

                }else{

                    //明文

                    editText.setTransformationMethod(HideReturnsTransformationMethod.getInstance());

                    imageView.setImageResource( R.mipmap.eye_open );

                    eyeOpen =true ;

                }

            }

        });

    }

}